Baxi boilers

Fixed price Baxi boiler installations

Get a new boiler installed next working day¹, with a range of flexible finance options available². Plus, get a free Hive Thermostat Mini with code FREEHIVEMINI*.

Getting a new Baxi boiler with BOXT

Answer

Answer a few questions about your home online to get a fixed price quote in 90 seconds

Choose

We'll give you boiler recommendations based on your answers, then choose your boiler and payment option

Installation

A BOXT Gas Safe registered engineer can install for you the next working day if ordered before 3pm

Maintain

Keep track of your install with the BOXT app, and find all your important documents in one place

Get a fixed price Baxi boiler

Baxi boiler finance

Spread the entire cost on selected boilers with up to 36 payments at 0%

Finance from 12-120 months

All-inclusive worry-free BOXT Life boiler plan from £33.35 a month

120 month boiler plan

All major credit and debit cards accepted so you can pay in full today

pay in full today

Get a quote & finance options

Get a new Baxi boiler + servicing + unlimited repairs

Fixed payments from just £33.35 a month for an all-inclusive plan to get:

- A brand new boiler

- Annual servicing by BOXT

- Unlimited boiler repairs

- Free boiler replacement

- No deposit

- No callout fees

Get a boiler plan

About Baxi boilers

Baxi have been continuously crafting boilers to the highest quality since 1866.

When it comes to home heating, Baxi have some of the best boilers, providing customers with not only boilers that are long-lasting but also precise.

This is because Baxi are dedicated to using some of the finest brass components available in the UK. It’s the ultimate boiler at a reasonable price.

Get a fixed price Baxi boiler

Baxi boiler service

A boiler service is an important yearly check up to keep your boiler safe and help keep your warranty valid.

A boiler service from BOXT costs £8.99 a month (or £11.99 a month for a landlord service), so you can keep your Baxi boiler in top shape while spreading the cost throughout the year.

More about boiler servicing

Baxi boiler repairs

BOXT are here for all your Baxi boiler needs, from supply and installation to boiler repairs if your boiler breaks down.

We've fixed our repair prices at just £89 and have a one year workmanship guarantee.

Baxi boiler FAQs

From their value for money to their energy efficiency, you can be confident a Baxi boiler is a great choice for home heating. Baxi boiler prices will vary depending on your requirements, so it’s best to talk to us if you’re unsure of what you need.

‘A’ rated for efficiency, Baxi boilers are money saving machines. Baxi boilers use most of their energy on heating up your home and little on running itself, which means you save money at the end of every month when your bills come in. Working at around 90% efficiency, Baxi are experts in making sure no energy is wasted - home heating, how it should be.

It's easy to find out how old your Baxi boiler is, if you're deciding whether or not it's time to invest in a new boiler.

Look for the sticker with a serial number on your Baxi boiler, probably on the front or inside the front panel.

If your boiler was made after 2003, the serial number should tell you what year it what manufactured, within the 6th and 7th digits. For example, if your serial number is 1234517, your boiler was manufactured in '17, so 2017.

Alternatively, enter your boiler details on the official industry database to find out how old your boiler could be, as this will show you when manufacturing of your boiler type began and ended.

Get a new Baxi boiler with BOXT

*Saving of £173.55 based on the Ofgem medium annual gas consumption of 11,500 kWh at the October 2025 UK average unit price of 6.288 pence per kWh including VAT. Emissions saved per year: 508 kg CO2 (0.184kg per kWh). Actual savings will vary depending on individual circumstances. Terms and conditions apply to Free Hive Mini promotion.

^¹Next working day installation when you order before 3pm, subject to availability.

^²Finance available subject to status. Click here for more information.

BOXT Limited is authorised and regulated by the Financial Conduct Authority. FCA register No. 767308. Finance is offered through HomeServe Finance Limited (FRN 994955) and in some cases we also lend with Propensio Finance Limited (FRN 806409). Finance available subject to status, affordability and a credit check. Terms and conditions apply. BOXT Limited acts as a credit broker and is not a lender. Registered in England & Wales company No. 08086606 VAT No. 257059782. BOXT Limited, 3320 Century Way, Thorpe Park, Leeds, West Yorkshire, LS15 8ZB.