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Gas Boilers

Make your home energy-efficient and enjoy the benefits of year-round comfort with a new A-rated gas boiler from Grant Store.

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  • Save 70% on average on your electricity bills
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Gas boiler solutions

Gas boilers have been a mainstay of the heating industry for decades, and they’ve become more fuel efficient over time. Over 23 million residential buildings in the UK have a gas boiler, which is about 85% of all boilers installed in the UK.

Grant Store is Vaillant-, Worcester-, and Idea-approved, and all of our engineers are fully qualified and registered. With over 50 years of experience in providing support, carrying out installations, and delivering aftercare services for a full range of boilers, ours is the name to trust when it comes to new boiler installations.

Fully Accredited Gas Boiler Installers

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How gas boilers work

Here’s an overview of how a gas boiler works:

  • Gas enters the boiler and is ignited
  • The heat from the flame is transferred to a heat exchanger
  • The heat exchanger heats water, which is then pumped around the central heating system
  • The hot water is also used to heat the hot water supply
  • The flue sends combustion gasses outside

A new gas boiler can cost anywhere between £500 and £3,000 for the system, plus another £2,750 for installation. Get in touch with our experts today to find out how much it would cost to have a new gas boiler installed on your property.

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  • Save money on your heating bills
  • A warmer, more eco-friendly building
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smart heating system

What are the benefits of having a gas boiler?

There are many benefits to getting a gas boiler installed in your property, here are the top five:

  • Cost-effective – Gas is a relatively affordable fuel source, making gas boilers a cost-effective way to heat your home
  • Efficiency – Modern boilers are incredibly efficient, meaning that they waste less energy than older models
  • Reliability – They’re generally very reliable and can last for many years with proper maintenance
  • Safety – New gas boilers are built with safety in mind, and they’re equipped with features that prevent carbon monoxide poisoning
  • Versatility – Unlike some other boilers, they can be used to heat both your home and your hot water, making them a versatile option

Why listen to Grant Store?

We’ve proudly served the UK for over fifty years. During that time, we’ve helped thousands of homes, businesses, and local authorities upgrade their boiler systems, and we’ve gained some exceptional reviews on Trustpilot. Grant Store is a Vaillant-, Worcester-, and Ideal-approved installer, and all of our boilers are fitted by fully qualified gas-safe registered engineers.

We’re with you every step of the way – from initial support to installation and aftercare – so whether you need a gas, oil, LPG, electric, or hydrogen boiler, Grant Store is the one to trust.

How the gas boiler process works

We’ve been installing gas boilers for over 50 years and have developed a 3-step, tried-and-tested process. This helps us keep everything from your initial inquiry to the final installation as simple and hassle-free as possible.


Tell us about your property

This is just to establish a few basic facts, like its location, size, and heating requirements. It’s also to find out if you’re eligible for gas boiler grants under the Affordable Warmth Scheme or the LA Flex Scheme.


Apply and Survey

We’ll then perform a comprehensive survey of your property to see which model of boiler would be the most efficient one to heat it. Assuming that you do meet any required funding criteria, we’ll also help you apply for your gas boiler grants.



Our professional installers are fully regulated and accredited, so you know you’ll be getting a first-class service every step of the way.

Still have some questions? We’re only a phone call away, so get in touch with our friendly team today to get started.


We’ve answered some of the most commonly-asked questions about gas boilers here, but please speak to the team if you have any more.

What will replace gas boilers after 2025?

There’s been some confusion over this controversial headline, and that’s because there’s no legislation that says gas boilers will be banned after 2025. The actual scenario is that new-build homes won’t be allowed to have gas boilers installed in them after 2025 – the ban doesn’t apply to properties built before then.

That being said, air source heat pumps, ground source heat pumps, and hydrogen boilers are being talked about as the natural successors of gas boilers as they’re much more environmentally friendly. Speak to our experts if you’d like to have a chat about this new generation of boilers.

What is the best boiler for gas?

This will depend on various factors related to your home, such as its size, location, and energy needs. Grant Store is a Vaillant-, Worcester-, and Ideal-approved installer, so you can trust our advice when the time comes to upgrading your existing boiler system.

Is it worth buying a new gas boiler?

Before buying a new gas boiler, you’ll need to consider a range of things, including the age of your current boiler, its efficiency, and your budget. If your current boiler is more than 10 years old, it’s probably time to consider replacing it, as it’ll be more likely to break down and won’t be as efficient as a new gas boiler.

If you’re torn between sticking with your current boiler or having a new one installed, just speak to a member of the team. They’ll be happy to take you through all your options.

How many years should a gas boiler last?

The average lifespan of a gas boiler is between 10 and 15 years, but its lifespan can vary depending on a number of factors, such as the quality of the boiler, how well you maintain it, and the environment in which it’s installed.