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Gas Boiler Replacement

Need a new Gas Boiler Replacement but don't know where to start? Luckily, at Gasworks we are your local boiler replacement experts. We answer the most common questions about new boiler installations.


SEAI Grant Towards Gas Boiler Replacement Controls.

Reduce Your Gas Bills with a New Condensing Boiler.

The Best Boiler Brands in 2023.


If your current boiler is over 15 years old it may be time for a gas boiler replacement. The first step in replacing your existing old gas boiler with a high efficient “A” rated condensing boiler model is deciding which boiler type suits your home or business.

Up to €1270 Back in SEAI Grants, Gas Boiler Replacement Dublin, Kildare, Kilkenny, Carlow, Laois, Wicklow and Nationwide.

Usually the most cost-effective gas boiler replacement is a like-for-like install. In other words if you currently have a system boiler installed, the most straight-forward replacement choice would be a system boiler. This would reduce installation time, materials and equally reduce your expenditure.

We also offer flexible boiler finance packages to suit your budget. So you can finally experience the cost saving addition a new "A" rated gas condensing boiler makes to your energy bills.

We are the experts when it comes to deciding on a new gas boiler replacement, our team is on hand to assist you in the decision making process when deciding on which gas boiler best suits for you.

 Our Most Popular Gas Boiler Replacement Packages



Worcester Bosch 18kW

German Engineering Quality

Gas system boiler + flue kit
FREE 10 year warranty
Expertly installed
FREE Bosch Magnetic filter
FREE system cleanse
FREE Lab analysis of water
FREE pipe upgrade (if required)

IDEAL Logic 18kW

Designed For Ireland

Gas system boiler + flue kit
FREE 7 year warranty
Expertly installed
FREE Adey Magnetic filter
FREE system cleanse
FREE Lab analysis of water
FREE pipe upgrade (if required)

IDEAL Logic 24kW

Designed For Ireland

Gas system boiler + flue kit
FREE 7 year warranty
Expertly installed
FREE Adey Magnetic filter
FREE system cleanse
FREE Lab analysis of water
FREE pipe upgrade (if required)

Worcester Bosch 24kW

German Engineering Quality

Gas system boiler + flue kit
FREE 10 year warranty
Expertly installed
FREE Bosch Magnetic filter
FREE system cleanse
FREE Lab analysis of water
FREE pipe upgrade (if required)

Worcester Bosch 30kW

German Engineering Quality

Gas system boiler + flue kit
FREE 10 year warranty
Expertly installed
FREE Bosch Magnetic filter
FREE system cleanse
FREE Lab analysis of water
FREE pipe upgrade (if required)


Why choose Gasworks for your Gas Boiler Replacement?

Free 10 Year Boiler Warranty

Full 10 Year Manufacturer’s Warranty (Parts and Labour inc) on your new Gas Boiler. Subject to an annual service from an RGI Registered engineer. 

Free Magnetic Filter RRP189

This protects your boilers heat exchanger from harmful sludge deposits, maintains overall efficiency, prolongs your boilers lifecycle and reduces heating maintenance calls. 

Free Heating System Cleanse and Inhibitors

A clean and properly inhibited central heating will protect your boiler reduce energy bills, maintain efficiency and reduce costly repairs. 

Boiler Finance Packages

No deposit required, fast boiler finance approval in minutes. 

Professional RGI Registered Installers

Our installers are RGI Registered and manufacturer specific trained, in both the installation and maintenance of their products.

Access to 24 Hour Emergency Plumbing Service

We operate a 24-Hour emergency service for all of our existing customers. 

Want to find out more? 

Call Our Services Team on 01 4433005 Mon- Sat 9.00 -18.00 

Call Now 01-4433005


Gas Boiler Installation Process

What are the next steps?

How would you prefer to receive your quotation?

Choose a time a date that suits you. during your home heating survey our expert heating advisor will assess your current heating system, talk you through your options and present you with a fixed price quotation.

Available Mon-Friday 8am-8pm, Saturday 9am-2pm

  1. Answer: Quickly answer some super easy questions about your home and your current heating system.
  2. Choose: We'll show you the most suitable gas boiler replacement packages that we offer. Select the one that best suits.
  3. Pay (or Split the Cost): You can pay in full or choose from various finance plans to spread the cost of your new boiler replacement
  4. We Install: Trusted RGI engineers with years of experience will perfectly install your new boiler.

Go to our contact us page, choose boiler replacement quote. Navigate through some quick questions about your current central heating system, upload an image of your existing boiler, flue pipe outside and heating controls. Upon receipt we will review the details and issue your fixed price quote.



Choose your Gas Boiler from our replacement options.

Selecting the right gas boiler for your home is crucial. It's not just about heating; it's about the comfort and safety of your family. At Gasworks.ie, we're here to guide you through this important decision.

Size: The size of your home will determine the boiler capacity you need. Larger homes or those with multiple bathrooms may require a more powerful boiler.

Existing System: If you already have a heating system in place, you might want a boiler that’s compatible with it to make the installation process smoother and more cost effective.

Combi Boilers: These provide hot water on demand, eliminating the need for a storage tank. Ideal for smaller homes with one bathroom.

System Boilers: They use a cylinder to store hot water, but the heating components are built into the boiler itself. Great for homes with multiple bathrooms.

Conventional Boilers: These require both a cylinder and a tank. Best for homes with old radiator systems.

1. Efficiency Matters: All our gas boilers are A rated for efficiency. Not only is it better for the environment, but it will also save you money on utility bills in the long run.

2. Future-Proof Your Investment: Consider the longevity of the boiler. Brands that offer extended warranties or guarantees can be a sign of quality and durability.

3. Installation and Maintenance: It's not just about buying the boiler; it's about maintaining it. Gasworks.ie boasts RGI registered engineers who ensure the boiler is installed to the highest standards.

Budget and Financing: Gasworks.ie offers a range of boilers to fit every budget. Plus, with our financing options, you can spread out the cost, ensuring you don’t compromise on quality due to budget constraints.

Expert Advice: When in doubt, consult! Our team at Gasworks.ie is always ready to help. We can assess your home, understand your needs, and recommend the perfect boiler for you.

Final Thoughts: Choosing a gas boiler might seem daunting, but with the right guidance, it doesn’t have to be. At Gasworks.ie, we aim to make the process as smooth as possible, ensuring your home stays warm and cosy.




Select a boiler installation date.

Installing your new gas boiler will usually take 1 day, all work will be carried out by RGI Registered boiler engineers and will be completed to the highest standard and according to the gas boiler manufactures instructions.

Prior to removal of your old gas boiler, the engineer will preform a gas soundness test and assess factors like the number of radiators, flue location and boiler positioning.

We take great care of your home, before any work commences all work areas and access paths will be covered with surface protective film. (SEE IMAGES BELOW) So no need to worry, we will leave home in tip top shape and most importantly WARM!

There is unlikely to be any disruption to your water or electricity during your boiler replacement. Gas will be unavailable for the majority of the installation. Full access to all radiators will be required during your new gas boiler installation.

Once your new gas boiler is installed all the necessary checks and tests will be done, the system flush carried out and the boiler will be commissioned.

Gas Boiler Tutorial and Hand Over.

The installer will instruct you on how to use your new gas boiler and controls, servicing intervals and the terms of your boiler warranty. An RGI Cert 2 will be issued along with the boiler benchmark




Get A Free Boiler Replacement Quotation

The first step in when looking for a gas boiler replacement is deciding on which type and model of gas boiler best suits your home or business, taking into consideration your current boiler type, location and age.

If you are unsure of which boiler best suits your needs, we have a dedicated page on the types of gas boilers that you can avail of. Alternatively you can contact us and we will be delighted to offer advice and guidance to help you in your decision making.

To avail of a free no obligation quotation contact us to arrange an expert heating engineer member for a free site visit at convenient time and date, where your current system will be inspected and recommendations made to ensure the best choice and value for money.

Once you have received your free quotation, it will be valid for 30 days and comes with a fixed price guarantee.


 You can book a FREE boiler appointment

One of our expert RGI Register heating engineers will come and assess your current boiler and central heating system. Discuss your boiler replacement options, grants available and give you a fixed price quotation.  

Book My Free Appointment


Get an SEAI grant towards the cost of replacing you Gas Boiler.

If your home was built and inhabited before 2006 you may be entitled to an SEAI Grant and Energy Credits towards the cost of a new boiler. To avail of this grant scheme you will need to upgrade your current heating controls when replacing you gas boiler. The total SEAI grant and energy credit amount is dependent on the property type and level of heating controls installed.

For example, if you replace your current gas boiler to a high efficient model and install fully integrated heating controls you can receive as much as €1229 (SEAI Grant €750, Energy Credits €479) in grants and energy credits. This represents a substantial saving!

For more Information on grants and credits available apply online

Benefits of upgrading your gas boilers heating controls



| Reduce your heating bills

Correctly installed heating controls can help reduce your homes heating and hot water bills by up to 20%


| Seperate Heating Zones 

Zoned heating controls gives you the ability to heat your hot water without your radiators heating and vice versa.


| Time and Temperature Control

A 7 day programmer and thermostat give you the ability to select your heating on/off periods and temperature levels.


Upgrade your gas boiler to an award winning Worcester Bosch and recieve a FREE magnetic filter FREE 10 year warranty


We protect your Gas Boiler for free too


With install a FREE magnetic filter RRP €189 with every Worcester Bosch Gas Boiler installed. This increases efficiency, prolongs your boilers life span and protects your boiler and heating system from nasty sludge deposits.

Only €189 with your boiler upgrade

Hive Active Heating Thermostat RRP €249.99

Control your heating from your phone with the hive active heating thermostat, easy to use, wireless thermostat only €189 installed. This optional control upgrade is available for all gas boiler types installed by Gasworks.


The benefits of replacing your gas boiler

While replacing your old gas boiler for a new “A” Rated high efficiency gas boiler can be an expensive investment, there are some benefits to be had especially if you decide on a boiler upgrade with energy saving controls. Below we have listed some expected benefits.Worcester Bosch Gas Boiler Replacement

Improved Efficiency

The efficiency of your old boiler could be as low as 55% - 70% depending on a number of factors, while a new “A” Rated model will have a minimum seasonal efficiency of 90% which can be further enhanced with additional controls such as weather compensating smart learning control systems..

Lower Fuel Bills

On average a gas boiler is our biggest expense when it come to our annual fuel bills with it accounting for 60% of our total energy bills. By changing to a new energy efficient model you could save 30% on your annual fuel bill

Improved Performance

When correctly sized and installed a new “A” Rated gas boiler offers better performance from your heating system, this means a more comfortable home for you.

Peace of mind for 7 Years

We offer a minimum full 7 year warranty on every boiler installed by our expert team. Depending on the model of boiler chosen some boilers from our range come with a full 10 Year warranty to give you total peace of mind.

Quiet Operation

Improved boiler design makes for a significantly quieter boiler when compared with older boiler types. Dependent on the location of your boiler this can make a massive difference.

Smaller Compact Size

New boilers tend to be smaller in size meaning more installation options, in some circumstances they can even be located in a kitchen cupboard.

Energy Saving Heating Controls Compatible

Correctly installed heating controls will not only save you money on your fuel bill but will also improve the comfort of your home.

Replacing your Gas Boiler in 2024.


Which Boiler Brand is best for you?  

With so many different makes of gas boilers to choose between, it can be quite the task to choose the correct brand that suits both your budget and central heating needs.

This brief guide will allow you to make an informed choice on the best gas boiler brands you can buy.

Learn which boilers we find the most reliable and most cost-effective boiler replacement option.

Installing a replacement gas boiler is not cheap. A typical system gas boiler including installation for a 3-4-bedroom home will cost between €2,400 and 2,900. So, finding the best value boiler for your home is of great importance.

We only work with established reputable boiler manufacturers in Ireland. Of these Worcester Bosch is our number 1 selling boiler brand for the last 8 years running (2015). Based on our statistics the Worcester Bosch has the best reliability stats and lowest failure rates across all boilers fitted by gasworks.ie. Worcester Bosch excellent long-term boiler guarantees, exceptional product quality and reliability coupled with an award-winning customer service department, open 365 days of the year. Now let’s take a look at the some of the best boiler brands available in Ireland in 2023.

Worcester bosch ghas boiler replacements

Our No.1 Gas Boiler For 2024

Worcester Bosch Gas Boilers


Bosch is associated with quality and Worcester Bosch are no different. Based in Worcester in the UK since 1962, Worcester Bosch is a market leading UK boiler manufacturer whose product range includes Gas Boilers, Oil Boilers and Renewable Technologies.

Worcester Bosch: The Heartbeat of Every Warm Home

Welcome to the world of Worcester Bosch, where warmth meets innovation!

Discover Worcester Bosch: Worcester Bosch isn't just a name; it's a hallmark of quality in the heating universe. For decades, this celebrated brand has been introducing homes to unparalleled warmth, efficiency, and peace of mind. From humble beginnings to becoming a giant in the boiler industry, Worcester Bosch has defined what it means to have a dependable, high-performance heating system.

Why Every Home Desires a Worcester Bosch:

  1. Pioneering Innovation: At the core of Worcester Bosch boilers lies an unwavering commitment to innovation. They constantly evolve, ensuring you get the latest in heating technology.
  2. Eco-friendly Warmth: Caring for the environment while providing optimal warmth, Worcester Bosch strikes the balance with eco-friendly and energy-efficient models.
  3. A Seal of Trust: Ask any homeowner or installer, and they'll tell you: when you choose Worcester Bosch, you're choosing reliability.


Worcester Bosch Boilers The Installers Choice

When it comes to home heating, Worcester Bosch boilers stand out as a household name, recognized and trusted by homeowners across the UK and Ireland. Renowned for their reliability and performance, Worcester Bosch is often the top pick for many households, earning them the title of "Best Boiler Manufacturer."

Renowned Reputation: Worcester Bosch has cemented its position as a leader in the industry, consistently delivering high-quality products that meet the needs of homeowners. Their boilers have earned numerous accolades, including the prestigious Which? Best Buy Award for an impressive 14 years in a row.

Preferred by Many: It's not just industry accolades that speak to Worcester Bosch's reputation. With a loyal customer base, often referred top as the gas installers Worcester Bosch boilers have become synonymous with reliability and trustworthiness in the minds of homeowners.

Exceptional Guarantees: Beyond product quality, Worcester Bosch distinguishes itself through its commitment to customer care. Instead of a mere warranty, they offer the Worcester Guarantee, showcasing their dedication to customer satisfaction even after installation. Their attention to customer needs sets them apart in the industry.

All-Round Excellence: Worcester Bosch is not just about quality products; it's about the complete package. From award-winning boilers to top-notch customer service and easily accessible parts, Worcester Bosch offers a comprehensive solution for homeowners' heating needs. With competitive prices and a commitment to excellence, Worcester Bosch remains one of the top boiler brands in Ireland.

If you're considering a new boiler and want the assurance of quality and reliability, Worcester Bosch is the brand to trust. Explore the latest deals on Worcester Bosch boilers and experience heating excellence for your home.

Experience the Worcester Bosch Promise: Journey with us as we unfold the legacy of Worcester Bosch. Explore models that beautifully meld technology with simplicity, ensuring each day is a cosy embrace for you and your family.

The epitome of warmth and trust, Worcester Bosch doesn't just make boilers; they craft experiences. Dive into a world where every chilly evening transforms into a warm memory. With Worcester Bosch, come home to more than just heat; come home to heart-warming moments.


''Our No1 selling boiler and considered by many to be one of the best gas boilers available for your home in 2024''

Their Range of Greenstar Gas Boilers has won the coveted "Which" Best Buy for the last 10 Years in a row, and are one of the most reliable boilers available.

Worcester Bosch have an excellent range of replacement boiler options.

  • Combi Gas Boilers
  • Gas System Boilers
  • Floor Standing Gas Boiler

Worcester Bosch Boiler Guarantee.

Every Worcester Bosch gas boiler installed by Gasworks comes with a minimum guarantee of 10 years. This includes a full parts and labour guarantee.

Worcester Bosch Boiler Price.

The most popular Bosch boiler installed by our team is the Worcester Bosch 4000 System. Available in a range of outputs from 12kW-24kW, prices start at €2,540 including installation and vat.

Browse Our Range Of Worcester Bosch Gas Boilers  

viessmann gas boilers

No.2 Gas Boiler Brand For 2024


Viessmann Gas Boilers Quality and Innovation


With a dominating presence in the European boiler market, Viessmann has earned a stellar 5-star reputation, thanks to its exceptional German engineering and sleek, minimalist designs that break away from the norm.


Solid Reputation in Ireland: As Viessmann expands into the Irish market, it brings with it a solid reputation for reliability and quality craftsmanship. Regardless of whether you can pronounce the name perfectly, Viessmann boilers are making waves nationwide.

Award-Winning Performance: Viessmann boilers have received recognition from reputable sources like Which?, earning a coveted Which? Best Buy Award for seven of their models. Praised as a "very smart choice," Viessmann boilers impress with their technical brilliance and superior performance.

Superior Heat Exchangers: One of Viessmann's standout features is its use of stainless steel heat exchangers, setting them apart from competitors who often opt for aluminium. This choice ensures durability and longevity, as stainless steel is better equipped to handle sludge, corrosion, and other common causes of boiler faults.

Unmatched Warranty Period: Viessmann stands behind its products with confidence, offering warranty periods of up to 10 years. This commitment to customer satisfaction reflects the brand's dedication to quality and reliability.

Efficiency: Think of a car that uses less fuel but still goes fast. That's how Viessmann boilers work; they use less energy but give you lots of warmth, saving you money on bills.

Eco-Friendly: Viessmann cares about our planet. Their boilers are designed to make sure we use our resources wisely and don’t harm the environment.

Compact & Modern: No big, clunky machines here! Viessmann boilers fit neatly in your home, and their sleek design means they look good too.

Reliable: Rain or shine, cold or snow, these boilers keep running, ensuring your home stays warm no matter what.

Innovative: Viessmann is like that smart friend who's always thinking of new ways to do things better. They keep coming up with fresh ideas to make their boilers even more efficient and user-friendly.


Conclusion: If you value quality above all else, a Viessmann boiler may be the perfect choice for your home. With their innovative designs, award-winning performance, and unmatched durability, Viessmann boilers offer peace of mind and superior heating solutions.

Explore the latest deals on Viessmann boilers and experience the excellence of German engineering in your home.


Viessmann is a big name when we talk about gas boilers for heating our homes, but let's break it down simply.


Imagine a company from Germany that's been making things to keep our homes cosy for over 100 years. That's Viessmann.


So, in simple words, if you're thinking of a reliable, efficient, and eco-friendly way to heat your home, Viessmann gas boilers are a top choice!

ideal gas boilers for replacement

Our No.3 Gas Boiler For 2024


Ideal Gas Boilers


When we talk about keeping homes warm in Ireland, one name stands out: Ideal. Through decades, Ideal has built boilers (such as the good old reliable ideal classic) that families across the UK and Ireland have come to trust. Think of them as the experienced grandparent of the boiler world - they've seen it all and know just how to keep you comfy.

Ideal boilers are called "Ideal" for a reason – they offer straightforward and dependable heating solutions. Established in 1906 in Kingston upon Hull, Ideal Boilers have been a trusted name in the UK home boiler market, known for their quality and reliability.


A Trusted British Brand: Ideal boilers have a long history of providing excellent heating solutions, earning the trust of homeowners across the UK. With their reputation for reliability, Ideal boilers are a popular choice for many households.

Options for Every Need: Ideal offers a variety of boilers to suit different budgets and preferences. Whether you're looking for a basic model or one with all the latest features, Ideal has options to meet your needs.

Support and Guidance: Ideal provides helpful resources and guidance to assist homeowners in making informed decisions about their heating systems. Whether you need advice on installation or want to learn more about immersion heaters, Ideal is there to help.

Extended Warranty: Ideal stands behind their products with confidence, offering warranty periods of up to 12 years when installed by accredited professionals. This long warranty period reflects Ideal's commitment to customer satisfaction and product quality.

For straightforward and reliable heating solutions, Ideal boilers are a great choice. With their range of options, helpful support, and generous warranty periods, Ideal makes it easy to keep your home warm and comfortable.

Explore Ideal boilers today and discover why they're called "Ideal" for homeowners across Ireland.


In short, if you want a boiler that has years of history and trust in the UK and Ireland, Ideal is, well... ideal! 

vaillant gas boiler replacements

No.4  Best Gas Boiler For 2024 in Ireland



Vaillant is a major player in the Irish boiler market and has earned recognition as one of the few brands awarded with a prestigious Which? Best Buy. With a reputation for reliability and quality, Vaillant boilers stand out among the competition.

Why Choose Vaillant?

  • Which? Best Buy Boiler: Vaillant has been honoured with a Which? Best Buy, a testament to the brand's commitment to excellence.
  • Trusted Reputation: Vaillant's long history of producing premium quality boilers has earned it a place among the top brands in the industry.
  • Made in the UK: Vaillant boilers are proudly manufactured in the UK to the highest standards of craftsmanship and engineering.
  • Diverse Range: Vaillant offers a variety of boiler types and sizes to meet the heating needs of different homes.
  • Generous Warranty: Backed by a hefty 10-year warranty, Vaillant boilers provide peace of mind and reliability to homeowners.

Vaillant's Commitment to Excellence:

  • Experience: With over 140 years of experience, Vaillant is a leading European manufacturer of gas-fired boilers and renewable heating solutions.
  • Innovation: Vaillant remains dedicated to producing highly efficient and innovative heating technology to meet the evolving needs of customers.
  • Family Owned: Despite its international success, Vaillant remains a family-owned company, maintaining its dedication to quality and customer satisfaction.
  • Wide Range of Options: From combi boilers to system and regular boilers, Vaillant offers a comprehensive range of products to suit every home.
  • Warranty Options: Vaillant boilers come with warranty options of up to 10 years, providing added peace of mind to homeowners.

Trust Vaillant for reliable, efficient, and innovative heating solutions backed by over a century of experience and a commitment to excellence.

Baxi gas boilers replacement

Our No.5 Best Boiler For 2024 Baxi Gas Boilers


Baxi: Affordable and Reliable Heating Solutions

Founded in the UK in 1866, Baxi has established itself as a leading gas-fuelled heating brand known for its affordability and reliability in both domestic and commercial markets. With a wide range of boiler sizes and options, including combi, system, and regular boilers, Baxi offers solutions tailored to meet various heating needs.


Key Features of Baxi


  • Wide Range of Options: Baxi provides a comprehensive selection of boiler sizes and types, ensuring there's a suitable option for every home.
  • Long Warranties: With warranties of up to 10 years, Baxi boilers offer peace of mind and reliability to homeowners.
  • British-Made Quality: Manufactured in Preston, Lancashire, Baxi boilers are British-made, engineered to withstand the test of time.
  • Value for Money: Baxi boilers offer maximum value for money, providing affordable heating solutions without compromising on quality.
  • Award-Winning Customer Service: Baxi is renowned for its excellent customer service, ensuring homeowners receive the support they need throughout the lifespan of their boilers.


Quality and Sustainability


  • Legacy of Excellence: With over a century of experience, Baxi boilers has earned a reputation for reliability and innovation in the heating industry.
  • Commitment to Sustainability: Baxi has been recognized for its commitment to quality and sustainability, receiving multiple awards for product excellence.

Forward-Thinking Approach:

  • Customer Support: Baxi prioritizes customer support, offering comprehensive training and assistance for heating engineers to ensure optimal performance and customer satisfaction.
  • Trusted Choice: With a legacy of excellence and a forward-thinking approach, Baxi gas boilers is a trusted choice for homeowners and heating professionals alike.

Baxi boilers are synonymous with affordability, reliability, and quality. With a diverse range of options, long warranties, and award-winning customer service, Baxi continues to be a preferred choice for heating solutions in UK homes. Trust Baxi for reliable and efficient heating solutions that stand the test of time.

In Ireland Baxi are part of the potterton myson group of companies, for nearly 40 years Baxi have been providing heating and water boilers for Irish homes and are a popular boiler brand throughout Ireland. Baxi offer a wide range of gas boilers, water heaters and various other heating components. If you are looking for a gas boiler replacement within budget, The Baxi range of gas boilers offers a reliable replacement option.

Glow-worm gas boiler replacements

Glow-worm Gas Boilers.

In 2001 Glow-worm was acquired by the Vaillant group, a world leader in the manufacturing of high quality boilers. Prior to this Glow-worm have been producing reliable gas boilers and heating products for over 80 years, from their Derbyshire based plant. Glow-worm are a well-known reliable boiler brand in Ireland and the UK. They offer warranties of up to 5 years on their range of domestic gas boilers.


Reliable Heating with Glow-worm Gas Boilers

Glow-worm gas boilers offer dependable heating solutions to keep your home warm even during chilly weather. Known for their reliability and efficiency, Glow-worm boilers come in various models to suit different heating needs and budgets.


Efficiency and Performance: Glow-worm boilers prioritize performance while saving energy, ensuring effective heating without high costs. Whether you need a combi, system, or regular boiler, Glow-worm offers options with top-notch energy efficiency ratings for cost-effective heating.

Reliability and Durability: Built to last, Glow-worm gas boilers are sturdy and dependable, providing consistent performance over time. With quality components and robust construction, these boilers offer long-term reliability for your peace of mind.

Compact Design: Glow-worm understands space constraints in modern homes. That's why their boilers feature a compact design, fitting seamlessly into various spaces like kitchen cupboards or utility rooms. The space-saving design allows for flexible installation without compromising efficiency.

User-Friendly Controls: Equipped with intuitive controls, Glow-worm boilers are easy to operate, letting you adjust settings effortlessly. Whether you prefer manual controls or programmable thermostats, Glow-worm boilers offer user-friendly options for convenient operation.

Professional Installation and Support: For optimal performance and safety, it's crucial to have your Glow-worm boiler installed by certified professionals.

Glow-worm works with a network of qualified installers who can ensure proper installation and provide ongoing support for your boiler.

Experience the reliability and efficiency of Glow-worm gas boilers, providing comfortable heating tailored to your needs. With Glow-worm, you can count on quality heating solutions designed to keep your home warm and cozy throughout the year.


Browse Our Range Of Glow-worm Gas Boilers 


Baxi gas boilers replacement

Vokera Gas Boilers.

Vokèra is synonymous with quality and affordability in the world of gas boilers. Proudly positioned in Callan, Co. Kilkenny, Vokèra doesn't just operate in Ireland; it understands Ireland. It's this local touch combined with international standards that has given Vokèra an edge, making it a preferred name across Irish households.

Not only do installers vouch for Vokèra due to its ease of installation, but homeowners also resonate with its commitment to warmth and dependability. Beyond its competitive pricing, what sets Vokèra apart is its commitment to user-friendly interfaces paired with robust build quality.

Moreover, Vokèra's after-sales support is a testament to their dedication towards their customers. The brand believes in forging long-lasting relationships, ensuring that every Vokèra boiler owner receives impeccable service throughout the boiler's lifespan.

In a market crowded with options, Vokèra stands out, balancing cost-effectiveness with unwavering performance. Every Vokèra boiler is a promise of a warm home, efficient energy use, and a product that you can trust for years to come. So, when you choose Vokèra, you're not just opting for a boiler; you're investing in a legacy of warmth and reliability.

What to consider when replacing your Gas Boiler

Location Location Location

The location of your new gas boiler and model is likely to impact install time and costs, particularly if you have decided on a relocation. Below are some things to consider when deciding on your new gas boiler replacement.

Gas Boiler Brand/Model

The model and brand of gas boiler chosen will impact on your price. The higher the quality of the selected boiler the higher the costs associated with it, for this reason we have a selected range of gas boilers to suit every budget while minimising the difference in quality.

Do you need heating controls?

Correctly installed heating control will not only reduce your fuel bill but will also make for a easier controlled, better performing central heating system. Dependent on the level of heating control required the installation time and cost will be impacted although grants are available to offset this additional expense.

Do you need to upgrade your gas pipe?

Your new “A” rated condensing gas boiler may require a larger gas pipe dependent on the distance from the gas meter, current pipe size and the amount of gas appliances served by the current gas line.

In addition if you are planning on relocating the new gas boiler, provisions will have to be made for re-connection of the existing heating system piping to the newly installed gas boiler. Floors coverings may have to be temporarily removed to allow the routing of piping to serve the boiler in its new location.

Condensate Disposal

Your new high efficient boiler will require a means of discharging its water vapour by product to a suitable drain or soak away. 

Boiler flue location and route

The length total lenght of flue and Flue terminal location are two very important factors to be considered when choosing you boiler location. A boiler located internally with no direct access to an outside wall will require addtional flue lenghts and components and this will impact your expenditure.

If your flue is concealed you may require addtional safety cut off controls

Do you require Independent heating zone control?

Dependent on your current heating system capabilities additional piping and cabling may be required dependent on the type of zoning required. (Hot water and Radiators)

How much space does the boiler require

Boilers come in all different sizes and with that their minimum space requirements vary greatly. It’s Important to note the minimum space requirement for service, repair and Installation.


Gas Boiler Efficiency  

If you have gas fired central heating in your home, your gas boiler is the main component of your central heating system. It produces the heat energy we require for both warmth and hot water. On average your gas boiler will be responsible for around 60% of your homes carbon emissions and equally the single largest consumer of energy in our homes. It is because of this high energy usage; careful consideration must be given to boiler efficiency in order to reduce both your energy bills and carbon footprint. Modern condensing gas boilers are typically over 90% efficient and replacing your old fashioned central heating boiler with one could mean a saving of over 20% on your annual gas bill.  In Ireland, there are many condensing boiler brands and models to choose between. But in term of efficiency levels there is very little difference between them. The most important factor when choosing the most efficient boiler for your home is the correct type and sizing. 

Gas Boiler Reliability 

When considering replacing your boiler, one of the most important things to consider is reliability. Just like cars there are many different makes and models to choose from, each with their own range and each offering very different levels of quality reliability warranty and pricing. No boiler can be considered 100% reliable but in the event that you are unlucky enough to experience a boiler fault, warranty back-up and support are also important factors to be taken into account. According to an independent survey by Which.co.uk the most reliable boiler brands are Worcester Bosch and Valliant. Being accredited installers for Worcester Bosch we can offer extended warranties for all Bosch Boilers installed. 

Will Replacing My Gas Boiler Result In Cheaper Gas Bills?

When upgrading your current gas boiler for a new condensing model you can expect some saving on your annual gas bill, however this is dependent on a number of variants with the most important being boiler efficiency. Below we have put together a likely cost saving related to upgrading to a new high efficient condenser model. 

If you opted to for a gas boiler upgrade with a minumum effieceny value of 90% costing €1968.00, these are the savings to be expected. You can further increase your annual fuel savings with energy saving control measures and increasing your home insulation value. 

Efficiency of your old boiler  Annual saving on your gas bill in %  Annual saving on your gas bill in €  How long it will take for your boiler to pay for itself 
60%  33%  €270 7.6 years 
65%  28%  €220 9 years 
70%  22%  €173 11.4 years 
75%  17%  €134  14.8 years 
80%  11%  €86  22.8 years 

These calculations are based on a small home with an annual gas bill of €728 p/a. 


When To Get A New Gas Boiler 

Now you know the cost saving benefits you get with replacing your old-fashioned boiler with a new condensing model, but can't decide when is the right time to make the investment. Below we have put together some pointers that can help you with your decision. 

  • If your gas boiler is over 15 years old it may be time for a replacement. Efficiency levels decline with age, and may be as low as 60% or even lower. This means for every 100-euro spent on heating bills only 40 euro is effectively wasted. 
  • If you are unlucky enough to have had your boiler breakdown and it is not cost efficient to repair. If you have had a qualified registered gas installer out and you have been told it's no longer feasible to repair it is time for a new boiler. 
  • If your current boiler has a pilot it may be worth replacing, the constant pilot required is wasteful of gas. 
  • If you currently have a gas fired back boiler or floor mounted model, these boilers are not considered to be very efficient and replacing may make financial sense.  
  • If you gas boiler has a rather large box type flue, these older boilers are very wasteful of energy. 
  • If you have had a qualified register gas installer declare your boiler unsafe. 
  • If your gas boiler has an energy rating of G or Lower. 
  • If you are considering upgrading your current heating controls, it may be worthwhile to upgrade your gas boiler too. Currently there are grants available to home owners through the home energy scheme. 
  • If you are carrying out extensive renovation it makes sense to upgrade your central heating, controls and boiler. 

Whats Involved When Replacing My Gas Boiler

How long will it take?

The replacement of your old gas boiler with one of our "A" rated gas boiler models will usually take 1 full day for a straight forward gas boiler replacement and system flush. Although this is dependent on the condition of the central heating system, gas boiler location, gas pipe size, access to a suitable drain for the condensate by product as well as any additional heating controls or zoning.

Will access be required to the whole house?

Yes we will require access through out the house for the purpose of system draining, refilling of the heating system, Flushing of the heating sytem and to ensure the heating system is fully operational.

Do i need to move or cover any furniture or floor coverings?

No the gas boiler replacement team will remove/cover any floor coverings, furniture or items required during the installation.

What will i get on completion? 

A Completion Pack complete with all manuals and user instructions, details of your extended warranty and a gas compliance certificate.

How can i Pay? 

You can pay by credit card, cheque, bank draft or cash. We also have finance options available.


What will my Gas Boiler Replacement Cost?

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Popular Gas Boiler Questions Answered

A direct gas boiler replacement (supplied and fitted) will typically cost between 1900 and 2600. The boiler brand, model and property size are most likely to influence the cost.

Unfortunately, there is currently no grant available for the replacement of your gas boiler to a high efficient model. Grants are available for Heating controls upgrade only (2019).

Prices start at 1995 for a  bosch 15i system boiler with standard 7 year warranty, this can be further increased to 10 years with the addition of a bosch magnetic filter and other measures.

A gas boiler will typically last up to 15 years. If your current boiler is nearing that age it may be time to consider a replacement.

Combi boiler are an ideally suited to smaller homes and apartment with 1 bath or shower room. Replacing your traditional boiler with a combi can result in significant savings on your annual heating and hot water bills.

The efficency of your existing gas boiler may be as low as 60% if this uis the case you can expect to save about 30% on your annual gas bill.

  • 15kw Boiler 6 Radiatiors/Hot water
  • 18Kw Boiler 7 Radiators/Hot water
  • 24Kw Boiler 10 Radiators/Hot water
  • 30Kw Boiler 14 Radiators/Hot water
  • 35Kw Boiler 16 Radiators/Hot water

Replacing your gas boiler will generally take 1 day

The Worcester Bosch greenstar range of gas boilers are compact, user friendly, and energy efficient up to 95%

At a minimun your gas boiler should be serviced at least once every year. Although dependent on usage your boiler may require more regular service intervals

Although its not required it may be worthwhile replacing your radiators if they are more than 25 years old. Replacing your radiators will make your home more comfortable and your central heating more responsive with quicker heat up and cool down periods.

The larger the radiator, the larger the heat output, the more energy required. Although the heat given out can be controlled by a simple thermostatic radiator valve. This will prevent excessive air temparatures maintaining a comfortable heat level

  • Worcester Bosch
  • Viessmann
  • Ideal
  • Vaillant
  • Glowworm

The importance of Flushing during a Gas Boiler Replacement

The quality of the water in your heating system is paramount to system efficiency, performance and expected boiler life. That’s why we will not install an expensive “A” rated boiler on your current heating system without knowing what we are up against.

A water sample from your system will be taken by our sales team member and a quality test will be performed. Once we are satisfied an estimate will be given and cost agreed.

Our choice of system flush is the use of a magnacleanse rapid flush filter, this is a cost effective system flush which will remove sludge particles increasing efficiency and performance.

Poor water quality is the single biggest factor affecting system efficiency and boiler performance. It can also cause extensive damage to your gas boiler. If you are looking for a gas boiler replacement insist on a water quality test.

System Flush – Dependent on water quality a chosen cleaning agent will be selected and full system flush will be performed.

Magnetic Filter - Every boiler Installed by Gasworks will be accompanied by an energy saving magnetic filter.

System Protector - Each system will be adequately dosed with a protecting agent, by maintain the water quality in the heating system we protect vital components reducing maintenance and fuel costs.

Watch the video and find out what is involved in flushing out your heating system to ensure the correct water quality for your new gas boiler replacement model.

When it comes to a new gas boiler replacement. We are proud to offer some of the best gas boiler warranty’s available in Ireland. Working with leading manufactures we are able to offer full 5, 7, 8 and 10 year warranties dependent your chosen boiler model. An annual service will be required to avail of these extended warranties.