Boiler Installations Bristol

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New Heat Only Gas Boiler

New Combi Gas Boiler

New Back Gas Boiler

New System Gas Boiler

Need a new gas boiler or replacement gas boiler installed in Bristol?

When you need a new boiler or replacement boiler fast in Bristol, at Great British Heating Bristol our engineers work 24/7, so we can respond fast when you need a new boiler. After all, no one likes to go without heating and hot water.

We’ll come out to your property for free and quote you for a new replacement boiler. Our prices are fixed for your peace of mind – no nasty hidden extras. All our Great British Heating engineers are Gas Safe approved, ensuring any new boiler is installed professionally and to comply with all gas and building regulations.

We offer 0% finance if you want to spread the payments and you also get a nice long 10 year manufacturers warranty on all boiler we install.

Call now to get your fixed price quote today.

Great British Heating - Bristol

0117 405 6172

MONDAY 8:00 am - 6:00 pm
TUESDAY 8:00 am - 6:00 pm
WEDNESDAY 8:00 am - 6:00 pm
THURSDAY 8:00 am - 6:00 pm
FRIDAY 8:00 am - 6:00 pm
SATURDAY 9:00 am - 5:00 pm
SUNDAY 9:00 am - 5:00 pm

* The above map position is not our office address

Meet Alex, manager at Great British Heating

Alex is the manager responsible for our heating engineers:

“At Great British Heating, we provide an efficient, clean, reliable and competitively priced service whilst never compromising on quality and safety. The safety of our customers and the public is of utmost priority to us. For peace of mind, our engineers are fully qualified, trained and insured, with over 16 years of experience working for leaders within the industry including British Gas, Vaillant and Glowworm.

We install the latest, most energy-efficient gas boilers on the market at very competitive rates. We also offer a number of payment options, with finance packages available (credit is subject to application and status).

As we are approved installers of Worcester and Vaillant boilers we are able to offer warranties of up to 10 years on these brands.

At Great British Heating we are leaders in smart technology – we are amazed with the developments that have been made, and we know that this next generation of technology will change how we live. Ask our expert engineers about smart home devices not only for heating but full automaton of lights securities and plugs.”

Choose the new boiler that’s right for you in Bristol

There’s are a choice of four main boiler types that are fitted, dependent on your property:

Combination Boiler or ‘Combi’ Boiler

As you can probably guess, a combination boiler provides both heating and hot water on demand, making it a very energy efficient boiler as it’s a single unit (hence the name combination). As a new combi boiler will heat the hot water instantly when you turn the hot water tap on, you won’t need a hot-water or cold-water storage tank, which can be a real space saver as well as a more efficient way of heating your home. It also means there’s less chance of any pipes freezing in the loft if you’ve got a cold water storage tank.

The added benefit of a new combination boiler is that the hot water is delivered at mains pressure, so you should get a nice powerful shower without the need for a separate pump/pressure shower if you have god mains water pressure.

The downside of a new combination boiler is they are really only suitable for smaller properties. Larger houses and properties with more than one bathroom, a system boiler will be required.

System Boiler

Whilst a System Boiler requires a hot water storage cylinder, all the major heating and hot water components are situated within the boiler itself, meaning they are quicker and easier to install.

A system boiler will provide a constant supply of hot water, meaning you don’t have a slight delay in hot water coming through like you do with a Combination boiler as the System boiler has already heated the water. Although a system boiler does need a hot water storage cylinder, it doesn’t have to be positioned in the loft and can be easily installed in an airing cupboard, making it an ideal cupboard to dry clothes.

These boilers are also compatible with solar water heating systems, which can save you money on your heating bills by heating your water with the power of the sun.

Heat Only Boilers – also known as Regular, Conventional or Open Vent Boilers

Heat only boilers do exactly what they say; They heat your central heating and hot water when installed as part of a heating system together with a hot water storage cylinder, cold water storage tank, plus a feed and expansion tank (which is usually stored in the loft above the boiler to provide a good head of water).

If your boiler is very old, the existing radiators and pipework might not cope with the pressure a new combination or system boiler would generate. Therefore, you are much better off replacing the boiler like for like with a Heat Only Boiler, unless you are having the whole system replaced, including pipework and radiators.

Back Boiler

A Back Boiler is a boiler supplying hot water or heating that is built-in behind a fireplace or is an integral part of a gas fire. They are often fitted to a property when space is at a premium as the boiler is fitted into the existing fireplace, rather than taking valuable floor or wall space elsewhere in the home.

Since the Building Regulations change in 2005 came into effect for energy efficient condensing boilers, your choice of replacement Back Boiler is limited by what’s on offer from the manufacturers. At Great British Heating, we usually recommend that you replace a Back boiler with a modern, energy efficient combi boiler.

This is How it Works…


Contact Great British Heating – By phone or by completing our enquiry form, our Boiler Install Advisors will walk you through your options.


FREE Survey – It’s 100% FREE and there’s no obligation to buy, we’ll come out to your property and provide you with a free quote you that’s a fixed price.


What’s Best for You. Any quote we give is without obligation. You only need to proceed if you choose to, there’s no hard selling tactics from us.


Arrange your installation date by selecting a date that’s suitable for you. We can even install boilers with 48hrs notice.


Once your boiler has been installed, we’ll register it with the manufacturer so you get your manufacturers guarantee.


Sit back and relax – Not only have you got a great deal on a new boiler in Doncaster, but if you need it you’ve got a nice long boiler manufacturers guarantee for peace of mind.

Your questions answered

Choosing a new boiler in Bristol isn’t something you do that often. So we get asked all types of questions. Here’s some of the popular ones we get asked: