Boiler Prices Compared

Boiler Prices Compared

Boiler Prices

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 Best Oil Boilers article.


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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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How to Get the Best Price on a New Boiler

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.

A new combi or system boiler will usually cost between £600 – £850 at the lower end of the scale with mid-range models coming in at around £800 – £1,100. The most you can expect to pay for a combi or system boiler (excluding installation) is around £2,000. A regular boiler may cost between £500 – £1,500.

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 – Spend as Much as You Can Afford

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 £305* on your annual heating bill when switching a G rated model for A+++. 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 £200 £140 £120 £120
Detached £305 £210 £180 £180
Detached Bungalow £155 £105 £90 £90
Mid terrace house £175 £120 £105 £105
Mid terrace house £95 £65 £55 £55

*Source: Energy Saving Trust. 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 April 2018 for a detached house.

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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Get quotes to supply and fit a new boiler now