Baxi Boiler Prices 2026 — 400 & 800 Series Fitted From £1,749
Looking for Baxi boiler prices? Next Gen Boilers Ltd is an approved Baxi installer covering Greater Manchester and Salford. Here's a complete, transparent guide to Baxi boiler costs in 2026 — all fully installed, all-inclusive, with no hidden extras.
Baxi is one of the UK's leading boiler manufacturers, with decades of experience. The Baxi 400 and 800 series are among the most popular combi boilers in Greater Manchester homes.
Call us: 07305 687 331 — Gas Safe registered engineers serving Greater Manchester.
Baxi Boiler Prices — Fully Fitted 2026
- Baxi 400 25kW combi — from £1,749 installed
- Baxi 400 30kW combi — from £1,799 installed
- Baxi 800 Combi 25kW — from £1,999 installed
- Baxi 800 Combi 30kW — from £2,049 installed
- Baxi 824 Combi 24kW — from £1,999 installed (qualifies for 2 years free servicing offer)
- Baxi 830 Combi 30kW — from £2,049 installed (qualifies for 2 years free servicing offer)
- Baxi 836 Combi 36kW — from £2,099 installed (qualifies for 2 years free servicing offer)
All prices are fully inclusive — boiler, installation, thermostat, filter, flush, old boiler removal and Gas Safe certificate.
Baxi 400 vs Baxi 800 — What's the Difference?
- Baxi 400: Entry-level Baxi combi. Reliable, efficient, compact. 5-year standard warranty (can be extended to 10 years). Best Baxi value option from £1,749.
- Baxi 800 / 824 / 830 / 836: Mid-to-premium Baxi range. ErP A-rated, quieter, better efficiency ratings, 10-year warranty standard. Includes the 824/830/836 models that qualify for our 2 years free servicing offer.
The Baxi 800 series is particularly popular — it bridges the gap between budget and premium, offering excellent efficiency at a reasonable price. The 824/830/836 also qualifies for our NEXTGEN2YEARS deal — use this code for 2 free annual services worth up to £200.
2 Years Free Servicing on Baxi 824/830/836
Next Gen Boilers Ltd currently offers 2 years free annual boiler servicing on qualifying Baxi installations: the Baxi 824, 830 and 836 series. Use code NEXTGEN2YEARS when booking.
Annual servicing normally costs £80/year. Getting 2 years free means you save up to £160 — and keeps your manufacturer warranty valid throughout. We schedule both services automatically at no cost to you.
This offer is also available with 0% finance — giving you the lowest possible monthly cost alongside 2 years of free cover.
Frequently Asked Questions
How much does a Baxi boiler cost fitted?
A Baxi 400 combi costs from £1,749 fitted. The Baxi 800 series starts from £1,999. The 824/830/836 series are from £1,999–£2,099. All prices are fully inclusive — boiler, installation, thermostat, filter, flush, old boiler removal and Gas Safe certificate.
Is Baxi a good boiler brand?
Yes — Baxi is one of the UK's most established boiler manufacturers with decades of experience. The 800 series is highly rated for reliability and efficiency. The 824/830/836 come with a 10-year warranty standard. Parts are widely available and well-supported across the UK.
What is the best Baxi boiler to buy?
For most homes, the Baxi 830 combi is the best all-round choice — good output, high efficiency, 10-year warranty and it qualifies for our 2 years free servicing offer. Budget-conscious buyers may prefer the Baxi 400 from £1,749.
Do Baxi boilers come with a 10-year warranty?
Baxi 800 series (including 824/830/836) come with a 10-year warranty standard when installed by an approved engineer. The Baxi 400 comes with a 5-year warranty as standard, extendable to 10 years with annual servicing. Next Gen Boilers Ltd registers your warranty on the day of installation.
Can I get 2 years free servicing with a Baxi boiler?
Yes — 2 years free annual servicing is included with the Baxi 824, 830 and 836. Use code NEXTGEN2YEARS when booking. This is worth up to £160 and keeps your warranty valid.