Combi boiler

Replacement gas boiler

Boilers account for 60% of our home’s energy bills, so it’s important to ensure your system is working efficiently and won’t encounter any problems down the line.

Gas boilers can breakdown or fault at any time, leaving you without heat or hot water until the problem can be fixed. And unfortunately there is never any warning of when an old boiler will breakdown.

Boilers over 10-years-old are more prone to problems and repair bills can exceed £300. Given you could be saving money every year on energy bills and limit the risk of a breakdown, a replacement gas boiler could be your answer.

Benefits of a gas boiler replacement

Gas boilers are at the heart of your home, providing you with heat and hot water all year round. This makes a breakdown even harder for the general dynamics of your property.

With a replacement boiler:

  • Reduce your heating bills by as much as £300 a year. Inefficient boilers could be working at just 70%, meaning you’re paying out a lot more annually than you should be. Efficient condensing boilers burn fuel more efficiently, producing a greater amount of heat.

  • Cut your home’s carbon footprint by up to 1,220kg a year, helping the environment with global warming problems and aiding the Government in meeting EU targets.

  • Heat your home more efficiently and ensure heat is distributed evenly. When a new boiler is installed you’ll often receive other services such as a power flush to remove sludge build-up.

Combi boilers

Combi boilers or combination boilers are the UK’s most popular replacement gas boiler installation, with over 50% of new systems being a combi.

Combi gas boilers are highly efficient condensing boilers, converting more fuel into usable heat. This is made possible with a larger flue, which captures more of the hot gases and prevents them from escaping.

Combi boilers are also popular because they provide homeowners with hot water on demand, scrapping the need for water tanks in the loft or airing cupboard. This also means you’ll save plenty of room in your home.

Gas boiler quotes

If you need an urgent gas boiler quote, or want to find out the gas boiler replacement cost, why not complete our quick form.

We’ll provide you with up to four FREE boiler quotes from local, vetted and reputable professionals to ensure you get the right price.



Yes! I want to compare local Combi boiler prices

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Combi boiler companies

Local Combi boiler Projects

1 Project: Customer made enquiry for a gas boiler replacement in Leeds. They are unsure what brand to go for and would like advice. Please contact to appoint
2 Project: 30me combi boiler for 3 bedroom semi. are you the property owner: owner of the property is this for a residential or commerial building: domestic type of current boiler: gas what boiler type are you l...
3 Project: new boiler are you the property owner: owner of the property is this for a residential or commerial building: domestic type of current boiler: gas what boiler type are you looking for: gas what level ...
4 Project: Customer made an online enquiry for new a gas boiler and is looking for quotes. Confirmed interest via /phone and needs advice on which boiler model to choose. Please call to arrange appointment
5 Project: customer made enquiry for a gas boiler replacement in stockton-on-tees. they are unsure what brand to go for and would like advice. please contact to appoint are you the property owner: tenant (with ...
6 Project: new boiler valiant supply @fit are you the property owner: owner of the property is this for a residential or commerial building: domestic type of current boiler: gas what boiler type are you looking ...
7 Project: Customer is looking to have a new gas boiler installed. They are unsure if they have a system or a combiboiler. Please contact them to discuss what boiler would be best suited for their home.
8 Project: Customer living in Barry area made an enquiry for new boiler quotes via one of our websites. Customer confirmed interest via Mr needs advice on the boiler make and model to choose Please call to arr...
9 Project: are you the property owner: owner of the property property type: detached interested in boiler replace quotes: yes is your boiler: gas other forms: none please call to appoint
10 Project: Customer made an online enquiry for a new gas boiler. Mr confirmed interest via Considering a range of options Mr lives in Boston area Please call to arrange appointment and discuss
11 Project: Pass: 4 - Call any-time Extent of work: New Boiler Type of building: Detached Fuel: Mains gas Number of radiators: 0 Quote requested on boiler replacement
12 Project: Pass: 4 - Call any-time Extent of work: New Boiler Type of building: Detached Fuel: Mains gas Number of radiators: 0 Quote requested on boiler replacement
13 Project: Customer made enquiry for a gas boiler replacement in Airdrie. They are unsure what brand to go for and would like advice. Please contact to appoint
14 Project: pass: 4 - call anytime. extent of work: new boiler type of building: detached fuel: mains gas number of radiators: 0 quote requested on boiler replacement are you the property owner: owner of...
15 Project: pass: 4 - call any time. extent of work: new boiler type of building: terraced fuel: mains gas number of radiators: 0 quote requested on boiler replacement are you the property owner: owner ...
16 Project: new gas boiler
17 Project: new gas boiler are you the property owner: owner of the property is this for a residential or commerial building: domestic type of current boiler: gas what boiler type are you looking for: gas what le...
18 Project: Customer made an online enquiry for a new gas boiler. Mr confirmed interest via Considering a range of options Mr lives in Gloucester area Please call to arrange appointment and discuss
19 Project: Customer made an online enquiry for new a gas boiler and is looking for quotes. Confirmed interest via email/SMS/ and needs advice on which boiler model to choose. Please call to arrange appointment
20 Project: best time: any work type: new electric boiler timescale: within 3 months property type: house owner: landlord (owner not occupier) description: current fuel: electric. current boiler: unknown, age 15 ...

Reviews of combi boiler companies

By Ms Sarah W.
Glow Green Limited
star-on star-on star-on star-on star-off
Glow Green offered me the best price of anyone on the Vaillant boiler they recommended. Although the sales agent who contacted me was pleasant and broadly responsive to my subsequent emailed queries, he didn’t answer a couple of my questions, even though I repeated them in two emails, so I was unable to verify a couple of things that to me were important and in the end I decided to go with a smaller, local company, where I could get complete answers more directly from the engineer who would be doing the job, so felt I had a higher level of direct quality control. If I had been set on installing a Vaillant boiler, though, they were a tempting option based on price. I think I just like the more direct relationship you have when you deal direct with the installer himself.
By Mr Ronald E.
Glow Green Limited
star-on star-on star-on star-on star-on
Glow green were very helpful and gave me a complete picture of what was involved and offered a very competitive quote, If I was to proceed I would have used them. Unfortunately the landlord decided to use his own contractor. Regards Ron Showell.
By Mr Ian M.
Glow Green Limited
star-on star-on star-on star-on star-on
Brilliant, very helpful
By Mrs Jan S.
Glow Green Limited
star-on star-on star-on star-on star-on
Not at this stage yet
By Mr Anant M.
Glow Green Limited
star-on star-on star-on star-on star-on
Friendly and knowledgable staff

Combi boiler activity in July 2020

Combi boiler Projects in the UK in July 2020

June 2020 May / June
Greater London 8,350 2% <img src=
South East 5,320 24% <img src=
North West 4,520 -2% <img src=
Yorkshire & Humber 3,530 9% <img src=
Scotland 2,560 3% <img src=
Western Midlands 2,488 2% <img src=
South West 2,031 -10% <img src=
East Midlands 1,975 -17% <img src=
East Of England 1,970 3% <img src=
Wales 1,084 -19% <img src=
Northern Ireland 409 0% <img src=
North East 360 3% <img src=
United Kingdom 34,597 2%

Source: Numbers calculated based on the search volumes in major search engines.

Latest successful combi boiler projects in July

By - Eric H.
Got me multiple people
By Mr Euan M.
I gained some idea of what is available but am awaiting an engineer to see if my own boiler is repairable.
By Mr Mike D.
Provided details of companies
By Mr PETER M.
good information, informative and professional.
By Mr Brian C.
Only two firms quoted

About UK

Energy Performance of Houses

Homes are given an energy ranking dependent on how efficient they are and ratings are shown in the data underneath. This ranges from A, the most energy efficient, to G, the very least efficient. With a higher rating you're more likely to have less expensive energy bills as more heat will likely be retained in the home. You are able to increase your home's efficiency with insulation including upvc double glazing, loft lagging or wall cavity insulation.