Boiler Prices Compared
We've compared the UK's best selling boilers by price so you can work out which brand is likely to give you the best value for money. Once you've found the right boiler at the right price, we can also help you to get the best installation quotes from Gas Safe qualified engineers in your area.
The boiler prices here are typical of the industry at the moment (i.e. not to be taken as quotes) and exclude the cost of having it installed by a professional engineer. By law, a gas boiler must be fitted by a Gas Safe registered engineer (an oil boiler should be installed by an OFTEC registered engineer). On average, the installation costs can add between £600 but installing it in a different location may be between £1,500, depending on how complex the installation is. Comparing quotes from several engineers is the best way to keep costs down.
Note: This comparison features gas boilers from each manufacturer. If you have an oil boiler, you may want to visit our article on the best oil boilers for home heating.
To compare up to 4 boilers by price and key features across all brands, head over to our boiler comparison tool.
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Worcester Bosch boiler prices
| Suitable for… | Boiler Model | Size | Type | Typical Price |
|---|---|---|---|---|
| Small 1 – 2 bedroom homes, 1 bathroom | Worcester Bosch Greenstar 25i | 25kW | Combi | £850 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Worcester Bosch Greenstar 30Si Compact | 30kW | Combi | £1,069 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Worcester Bosch Greenstar 27i System | 27kW | System | £981 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Worcester Bosch Greenstar 35CDi Classic System | 35kW | System | £1,187 |
| Large 5+ bedroom homes, 2 or more bathrooms | Worcester Bosch Greenstar 40CDi Classic Regular | 40kW | Regular | £1,495 |
Find out more about the Worcester Bosch brand and the full range of boilers here.
Vaillant boiler prices
| Suitable for… | Boiler Model | Size | Type | Typical Price |
|---|---|---|---|---|
| Small 1 – 2 bedroom homes, 1 bathroom | Vaillant ecoTEC plus 825 Combi | 25kW | Combi | £1,075 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Vaillant ecoTEC plus 832 Combi | 32kW | Combi | £1,200 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Vaillant ecoTEC plus 630 System | 30kW | System | £1,256 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Vaillant ecoFIT pure System | 30kW | System | £1,256 |
| Large 5+ bedroom homes, 2 or more bathrooms | Vaillant ecoTEC plus 435 Regular | 35kW | Regular | £1,430 |
Find out more about the Vaillant brand and the full range of boilers here.
Baxi boiler prices
| Suitable for… | Boiler Model | Size | Type | Typical Price |
|---|---|---|---|---|
| Small 1 – 2 bedroom homes, 1 bathroom | Baxi 224 Combi | 24kW | Combi | £635 |
| Small 1 – 2 bedroom homes, 1 bathroom | Baxi 428 Combi | 28kW | Combi | £655 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Baxi EcoBlue 32 System | 32kW | System | £1,127 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Baxi Megaflo 28 System | 28kW | System | £945 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Baxi 430 Heat | 30kW | Regular | £925 |
Find out more about the Baxi brand and the full range of boilers here.
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Ideal boiler prices
| Suitable for… | Boiler Model | Size | Type | Typical Price |
|---|---|---|---|---|
| Small 1 – 2 bedroom homes, 1 bathroom | Ideal Logic Combi | 24kW | Combi | £775 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Ideal Logic+ Combi | 30kW | Combi | £845 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Ideal Logic+ System | 30kW | System | £905 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Ideal Vogue Max System | 32kW | System | £1,135 |
| Large 5+ bedroom homes, 2 or more bathrooms | Mexico HE | 36kW | Regular | £2,200 |
Find out more about the Ideal brand and the full range of boilers here.
Viessmann boiler prices
| Suitable for… | Boiler Model | Size | Type | Typical Price |
|---|---|---|---|---|
| Small to medium sized homes, 1 – 4 bedrooms, up to 2 bathrooms | Vitodens 050-W Combi | 29kW | Combi | £865 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Vitodens 100-W Combi | 30kW | Combi | £1,095 |
| Medium to Large homes, 2 or more bathrooms | Vitodens 200-W System | 35kW | System | £1,300 |
| Large homes, 2 or more bathrooms | Vitodens 100-W Open Vent | 35kW | Regular | £1,200 |
Find out more about the Viessmann brand and the full range of boilers here.
Glow-worm boiler prices
| Suitable for… | Boiler Model | Size | Type | Typical Price |
|---|---|---|---|---|
| Small 1 – 2 bedroom homes, 1 bathroom | Glow-worm Energy Combi | 25kW | Combi | £775 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Glow-worm Ultimate3 Combi | 30kW | Combi | £705 |
| Medium 3 – 4 bedroom homes, up to 2 bathrooms | Glow-worm Energy System | 30kW | System | £850 |
| Large 5+ bedroom homes, 2 or more bathrooms | Glow-worm Ultimate3 Regular | 25kW | Regular | £725 |
Find out more about the Glow-worm brand and the full range of boilers here.
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Boiler prices UK
The average cost of a new boiler is between £600 - £2,000.
UK boiler prices are based on the size of the boiler, the boiler type, and boiler model. Installation typically adds an additional £500 – £1,000 to the overall price.
| Boiler prices UK | |||
| Combi | System | Regular | |
| Budget models | £450 - £950 | £500 - £950 | £500 - £950 |
| Mid range | £1,000 - £1,800 | £1,000 - £1,600 | £1,000 - £1,600 |
Use Boiler Guide’s comprehensive price guide for up to date boiler prices in 2024.
Find a qualified installer
Working with any central heating system is a complicated job that requires experience and expertise; we recommend that you meet with at least 2 or 3 different engineers so you can compare prices as well as their level of experience and customer reviews. Some boiler installers are accredited by a manufacturer which means they have been specially trained to install certain boilers and often this means you receive an extended warranty.
Get the right boiler
Do you want to keep the same type and brand of boiler or are you interested in making a change? Most boiler replacements are combi boilers; these compact boilers deliver hot water for both your heating and taps on demand which is often more energy efficient than systems which require a hot water cylinder and electric immersion heater to store hot water. Combi boilers get their water supply directly from the mains and so don't need a separate water tank in the attic or a hot water cylinder. However, larger homes with 2 or more bathrooms will have a higher demand for hot water that is better served by a system or regular boiler.
Boiler prices also increase with the output size, i.e. how powerful the boiler is. Your boiler should suit the size of your home, number of bathrooms and number of radiators. This is something that installers will be able to advise you on but you can find out more in What Size Boiler Do I Need?
Avoid cheap boilers
It can be tempting to look for the cheapest boiler on the market, especially if the boiler has broken down out of the blue. However, a cheaper boiler may not be as efficient which will end up costing you more in heating bills and may be of a poorer quality leading to ongoing repair costs. If you can take the time to shop around, get advice from multiple engineers, family, friends and other consumers, it really will pay off in the long run.
Some heating companies are able to offer a boiler finance arrangement so the total price of the boiler and installation cost is broken into manageable payments over longer period.
Will a new boiler save you money?
A new boiler can save you money if it is more energy efficient than your old one. This could be up to £840* on your annual heating bill when switching a G-rated model for A-rated. The table below estimates how much you could be saving in reduced energy bills each year, depending on your property size and current boiler rating.
| House Type | G (<70%) | F (70-74%) | E (74-78%) | D (78-82%) |
|---|---|---|---|---|
| Semi-Detached | £540 | £380 | £335 | £305 |
| Detached | £840 | £590 | £460 | £375 |
| Detached Bungalow | £445 | £310 | £275 | £250 |
| Mid terrace house | £235 | £260 | £290 | £420 |
| Mid floor Flat | £230 | £160 | £140 | £125 |
*Source: Energy Saving Trust, Heating Your Home: Boilers (2022) .
Figures based on replacing an older G rated boiler with a new A-rated condensing boiler with a programmer, room thermostat and thermostatic radiator controls (TRVs) in a gas-heated home. Based on fuel prices as of October 2022 for a detached house, in England, Scotland and Wales.
Get boiler quotes to compare
When it comes to getting the best boiler prices, the most important thing to do is find and compare at least 2 quotes from different engineers. Complete our simple enquiry form today and we'll find you up to 3 free, no-obligation quotes from boiler installers near you; each will give you their most competitive new boiler prices so you can choose the best. Ask the engineer as many questions as you need to be sure that you're getting the right heating system for your home now and in the future.
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