Hassle Free Boiler Installation

Seamless boiler replacement and boiler repair in Southampton for homeowners in the Southern area, helping you enjoy a warm, comfortable and energy-efficient home.


Benefits of a boiler upgrade with Gas Worx

  • Energy Efficiency: Our range of modern boilers boasts high energy efficiency ratings, which can significantly reduce your energy consumption and lower your bills. With an A-rated boiler, you can enjoy the comfort of a warm home while minimising your environmental impact.
  • Expertise and Accreditation: Our team of Gas Safe registered engineers possesses the knowledge and experience to install and maintain a wide range of boiler systems. Trust our professionals to deliver exceptional workmanship and unparalleled customer service.
  • Customised Solutions: We understand that each home has unique heating requirements. Our experts will assess your specific needs and recommend the most suitable boiler system, ensuring optimal efficiency and comfort. Choose from a variety of options to find the perfect fit for your Southampton home.
  • Transparent Pricing: We’re committed to providing top-quality boiler installations at competitive prices, with no hidden costs. Our transparent pricing structure and flexible financing options help you enjoy the benefits of a new boiler without breaking the bank.
  • Boiler Service Southampton and Surrounds: We provide boiler servicing Southampton and surrounds at reasonable and competitive prices. 

Book a consultation now and get a new boiler installation quote for your home.


Boiler Service Southampton

Our commitment to customer satisfaction extends beyond the installation. We offer maintenance and support services to ensure your boiler is well serviced and operates at peak performance for years to come.

Based in Southampton, Gas Worx provides new and replacement boiler installations and boiler servicing Southampton and across Hampshire and West Sussex, including Bournemouth, Portsmouth, Chichester and Worthing, rated excellent on Trustpilot!

Compare new boiler specification

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New Boiler Benefits

Better for you and the environment!

    • Longer lifespan:
      Lasting up to 15 years or more
    • Environmentally friendly:
      Produce fewer emissions 
    • Enhanced safety:
      Advanced safety features
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More Boiler Benefits

Perfect way to upgrade your home

    • Better heating control:
      Precise temperature control
    • Space-saving:
      More compact, freeing up space
    • Quiet operation:
      Operate with minimal noise
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Better Boiler Benefits

Value and return on investment

    • Improved efficiency:
      Lower energy and bills
    • Warranty coverage:
      Manufacturer’s warranty
    • Increased property value:
      Boost home value

Just three simple steps

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Complete the quote form or book a consultation

Arrange a convenient time to talk, and we'll advise on which heating solutions best fit your requirements, budget, and Southampton property

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Home visit for consultation, assessment and quote 

Our professional, experienced heating engineers in Southampton will visit your home to evaluate the layout and positioning of potential energy upgrades, providing a no-obligation quotation

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Installation by Southampton central heating engineers

All installations are project managed and completed by our multi-skilled in-house professionals, working quickly and efficiently to finish the work with minimal disruption

Benefits of a new efficient gas boiler 

Installing a replacement gas boiler for your home comes with a host of benefits that can significantly enhance your living experience. Modern gas boilers are designed with energy efficiency in mind, which can lead to substantial savings on your energy bills, especially when replacing an older, less efficient model.

In addition to cost savings, a new gas boiler can provide more consistent and reliable heating, ensuring a comfortable and cozy home environment. New boilers are often quieter and more compact, which can free up valuable space in your home.

By upgrading to a high-quality gas boiler, you can also reduce your carbon footprint and contribute to the UK’s green energy transition. Lastly, a new boiler installation typically comes with a manufacturer’s warranty, providing you with peace of mind and protection against potential issues or breakdowns.


New boiler v old boiler

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A new gas boiler in the UK can be considerably more efficient than a ten-year-old model, thanks to advances in technology and stricter energy efficiency regulations. Modern gas boilers are designed to maximise heat transfer and minimise heat loss, resulting in less energy consumption and lower energy bills.

One of the most significant improvements in modern boilers is the introduction of condensing technology. Condensing boilers capture and utilise the heat from exhaust gases that would otherwise be lost through the flue, significantly increasing their efficiency. In contrast, older non-condensing boilers are unable to recover this heat, leading to higher energy wastage. As a result, new condensing boilers can achieve efficiency ratings of up to 94%, whereas a ten-year-old non-condensing boiler may only operate at around 70-80% efficiency.

In addition, new boilers are equipped with advanced control systems that allow for more precise temperature regulation and better adaptability to your home’s heating requirements. These smart controls can optimise the boiler’s performance, reducing energy consumption and further increasing efficiency. In comparison, older boilers often rely on less sophisticated controls, which can lead to uneven heating and higher energy usage.

Upgrade your boiler today

Elevate the comfort and energy efficiency of your Southampton home with a hassle-free boiler replacement from Gas Worx.

By opting for a modern, condensing boiler with smart controls and a well-insulated design, homeowners can enjoy reduced energy consumption, lower energy bills, and a more comfortable living environment.

Contact us today to schedule a free consultation and discover the difference of working with a customer-focused boiler installation company. Let us help you enjoy a warm and comfortable home while navigating the rising energy prices with a tailored heating solution.


Why choose Gas Worx for your
new boiler installation

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5 star customer service

We have 100’s of satisfied customers
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Price Match Promise

We won’t be beaten on price and service
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Full installation warranty

2 years full parts and labour warranty *T&C apply

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Fixed price guarantee

You pay the price we quote – no hidden extras

New boiler price guide

Installation prices for new UK boiler installations vary depending on the size and complexity of the system, as well as the specific requirements of your home.

On average, the cost of installation ranges from £2,000 to £5,000 overall, but will depend on your property and condition of your existing heating system.

By investing in a new boiler, you can enjoy a more efficiently heated home, while simultaneously contributing to the UK’s green energy transition.

Renewable heating consultation


Air source
heat pump servicing






Gas Worx reviews on Trustpilot...

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We have had so many satisfied customers, some have been kind enough to leave a review.

Request a callback

Please complete our quick enquiry form to receive a callback, email or home heating consultation booking directly from the Gas Worx team. We never use your details for any purpose other than to respond to your query or booking request, and we keep all confidential information 100% secure.

Let us know if there is a particular heating solution you are interested in, or schedule a call at a good time for a discussion with one of our renewable and energy-efficient heating experts to explore all the options.

Frequently Asked Questions

There are government schemes such as the Energy Company Obligation (ECO) and the Green Homes Grant that may provide financial support for eligible homeowners to improve their home’s energy efficiency, including boiler replacements. Check the current schemes and your eligibility on the UK government’s website.

Yes, most modern boilers are compatible with smart thermostats, allowing you to control your heating and hot water remotely and more efficiently. Check with your installer or boiler manufacturer to ensure compatibility with your chosen boiler.

Choose a boiler with a high energy efficiency rating (A-rated or above) and consider additional energy-saving measures such as smart controls, proper insulation, and regular boiler maintenance. You can also ask your installer for advice on energy efficiency.

A new boiler installation may be necessary if your current boiler is old, inefficient, or frequently requiring repairs. If you are experiencing higher energy bills, inconsistent heating, or poor hot water supply, it could be time for a replacement.

A typical boiler installation takes between 1-3 days, depending on the complexity of the job and any additional work needed.

The cost of a new boiler installation varies depending on the type of boiler, brand, and any additional work required (e.g., upgrading pipework or relocating the boiler). On average, prices range from £1,500 to £4,000, including VAT and labour.

Annual servicing is recommended for your new boiler to ensure its efficiency, safety, and longevity. Regular servicing helps detect and fix any potential issues before they become significant problems and can also validate your boiler’s warranty.

Consider your home’s size, heating and hot water requirements, energy efficiency, fuel type, and available space for the boiler. You should also factor in your budget and any specific features you need, such as smart controls or compatibility with renewable energy sources.

Ensure your boiler installer is Gas Safe registered for gas boilers or OFTEC registered for oil boilers. These accreditations confirm that the installer is trained, certified, and qualified to work safely and legally on your boiler system.

There are three main types of boilers: combi (combination) boilers, system boilers, and regular (conventional) boilers. Each has its advantages and is suited to different home types and user needs.