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29 June 2021

Baxi boilers rated

Find out how reliable Baxi boilers are, what Baxi owners think of their boilers, and what trusted boiler engineers make of the Baxi brand
Matthew Knight

Baxi is an East Midlands-based boiler brand. It was founded in 1866 by iron moulder Richard Baxendale and his partner Joseph Heald. It's now part of BDR Thermea, which also includes the boiler brands Potterton and Main, and is one of the largest boiler manufacturers in Europe.

Keep reading to find out more about Baxi boilers, including what Baxi customers and trusted heating engineers really think of the Baxi brand.

Baxi combi boilers

Baxi offers several ranges of combi boilers, including Baxi EcoBlue Plus Combi, Baxi EcoBlue Advance Combi, Baxi Duo-tec, Baxi Platinum, Baxi 200 Combi, Baxi 400 Combi and Baxi 600 Combi. Outputs range from 24kW to 40kW, delivering flow rates up to 16.4 litres a minute.

Baxi heat-only boilers

For homes with hot water storage cylinders and a cold water tank in the loft, Baxi’s range of heat only, or regular, boilers include the EcoBlue Heat, EcoBlue Advance Heat, Baxi 200 and Baxi 400 Heat. Outputs range from 12kW to 30kW, so there is a model for every size of home, even larger properties with a higher demand for hot water.

Baxi system boilers

For homes with more than one bathroom or that require more hot water than can be provided by a combi boiler, then a system boiler could be the best choice. A system boiler pumps hot water to the radiators and a sealed hot water storage cylinder. Most of the major components of the heating and hot water system, including the pump and expansion vessel, are built into the boiler, making installation easier and tidier. Baxi has two ranges of system boiler, Baxi Megaflo System and Baxi EcoBlue System, with outputs from 12kW to 32kW.   

You can find more details about the individual products in these ranges in our Baxi boiler reviews.

More than 7,500 members of the general public take part in our annual boiler brand reliability and customer satisfaction survey, enabling us guide you to the best and worst boiler brands. We also conduct a survey with more than 153 trusted boiler engineers to get their independent views on which boiler brands are the best.

Which? verdict on Baxi boilers

Below we've collated all of our survey results for Baxi boilers including reliability, customer score, build quality and much more.

Which? members can log in to view what owners and engineers make of Baxi in the table below. If you're not already a member, try Which? for access to all our test scores and data.

Overall score
Customer score
Engineer recommendation
Build quality
Availability of parts and spares
Ease of fixing a common fault
Ease of servicing
Table notes: The reliability and customer score are based on responses from a May and June 2020 survey of 7,500 boiler owners. Engineer recommendation, build quality, availability of parts and spares, and ease of fixing a common fault and ease of servicing are based on responses to a June 2020 survey of 153 Which? Trusted Traders heating engineers.

How much do Baxi boilers cost?

Baxi does not sell boilers direct to consumers. They are supplied to Gas Safe-registered installers through plumbing and heating merchants. Baxi boilers cost from approximately £570 to £2,172, depending on type and output. The cost of installation will vary from home to home and depends on the amount of work the installer needs to do to complete the installation to Building Regulations standards.

Baxi boilers installation

Expect to pay up to £1,500 for a new boiler in a new position. See our guide to the cost of installing a boiler for more guidance on the cost of installing a boiler.

Baxi servicing and warranties

Most Baxi boilers come with a two-year warranty, but limited-time offers of up to 10 years are available. For warranties to be valid boilers must be registered within 30 days of installation and the installer must complete the Benchmark Commissioning Checklist and give it to the householder when handing over the boiler. The boiler must also have an annual service.

Baxi warranties

0344 871 1525

The warranty terms and conditions can be found here and carry the Plain English Campaign Crystal Mark: http://warranty.baxi.co.uk/terms

Baxi Customer Support offers protection plans, underwritten by Domestic and General, for boilers that are still in warranty or out of warranty. You can contact Baxi Customer Support on 0344 871 1525 for more information or visit https://www.baxi.co.uk/service-and-repair/protection-plans

Boiler parts and repairs

Baxi boilers are manufactured using Baxi Genuine Parts, which are approved for use in Baxi products. Baxi Genuine Parts are available from approved stockists throughout the UK, providing lifetime support for Baxi products.

Gas Safe registered heating engineers can contact Baxi Genuine Parts on 0344 871 1540 or visit http://trade.baxi.co.uk/trade-area/support/parts.htm

Baxi contact details

You can contact Baxi at the following address: 


Brooks House, Coventry Road

Warwick, CV34 4LL

Email: info@baxi.co.uk Website: www.baxi.co.uk

Baxi general enquiries

0344 871 1545

Baxi servicing

0344 871 1545