Boiler Installation & Replacement
New boiler supply & installation from £1,499. Whether you need a brand new boiler, a like-for-like replacement, a relocation, or a full system conversion, our Gas Safe registered engineers deliver fixed-price solutions across London.
Boiler Installation Services
Whether you need a brand new boiler, a like-for-like replacement, a relocation, or a complete system conversion, we have the right solution for your home.
New Boiler Installation
Brand new boiler supply and installation from £1,499. We fit all major brands including Worcester Bosch, Vaillant, Viessmann and Ideal, with up to 10 years manufacturer warranty.
- Supply & install from £1,499
- Up to 10 year warranty
- A-rated energy efficiency
Boiler Replacement
Like-for-like boiler replacement when your existing boiler has reached the end of its life. We remove the old unit, install the new one, and handle all connections and certification.
- Old boiler safely removed
- Same-day installation
- Gas Safe certification included
Boiler Relocation
Move your boiler to a more convenient location — from the kitchen to a utility room, loft, or garage. We extend all pipework, gas, and flue connections to the new position.
- Kitchen, loft or garage moves
- All pipework extended
- Typically 1–2 days
System Conversion
Convert from a conventional (regular) boiler with tanks to a modern combi system. We remove the hot water cylinder and cold water tanks, freeing up valuable space in your home.
- Conventional to combi conversion
- Tanks & cylinder removed
- Frees up loft & airing cupboard
Why Choose Befix
Gas Safe registered engineers, fixed-price quotes, and manufacturer-backed warranties on every installation.
Gas Safe Registered
Every installation is carried out by Gas Safe registered engineers. Full certification and building regulations compliance included with every job.
Fixed-Price Quotes
The price we quote is the price you pay. No hidden extras, no surprise charges. We include everything — boiler, parts, labour, flue, and Gas Safe certificate.
Up to 10 Year Warranty
New boilers come with up to 10 years manufacturer warranty when installed by our Gas Safe registered team. We handle the warranty registration for you.
Same-Week Installation
Most installations are completed within the same week of your survey. Standard boiler swaps are typically done in a single day with minimal disruption.
Lower Energy Bills
Modern A-rated boilers are up to 30% more efficient than older models. You could save hundreds of pounds a year on your gas bills with a new boiler.
Finance Available
Spread the cost of your new boiler with flexible finance options. Interest-free plans available on selected models, making a new boiler affordable for every household.
Representative 11.9% APR
Trusted Boiler Brands
We supply and install all major boiler brands. As accredited installers, we can offer extended manufacturer warranties of up to 10 years.
Worcester Bosch
The UK's most popular boiler brand. Renowned for reliability, efficiency and long warranties.
Vaillant
German-engineered boilers with industry-leading efficiency ratings and smart controls.
Viessmann
Premium German manufacturer known for whisper-quiet operation and stainless steel heat exchangers.
Ideal
Excellent value British-made boilers with compact designs and reliable performance.
Baxi
Trusted British brand with a strong reputation for durability and ease of servicing.
Glow-worm
Affordable boilers from the Vaillant Group. Great budget option without compromising quality.
Alpha
Compact and lightweight boilers ideal for smaller properties and flats.
Navien
Innovative high-efficiency boilers with built-in smart technology and weather compensation.
Boiler Installation Pricing
Transparent, fixed-price boiler packages. Every price includes the boiler, installation, flue, Gas Safe certificate, and warranty registration. No hidden fees.
Budget
Ideal, Glow-worm, Alpha
- A-rated energy efficiency
- Up to 7 year warranty
- Supply, install & flue included
- Gas Safe certificate
Mid-Range
Worcester Bosch, Vaillant, Baxi
- A-rated energy efficiency
- Up to 10 year warranty
- Supply, install & flue included
- Gas Safe certificate
- Smart thermostat included
Premium
Viessmann, Navien, Worcester 8000
- Top-tier energy efficiency
- 10 year manufacturer warranty
- Supply, install & flue included
- Gas Safe certificate
- Smart thermostat & weather compensation
All prices include VAT. Final pricing confirmed after free home survey. Finance options available — Representative 11.9% APR.
Ready for a New Boiler?
Free home survey, fixed-price quote, and installation within the week. No obligation, no hidden costs.
How It Works
A simple four-step process from initial enquiry to your new boiler being fully operational.
Free Consultation
Tell us about your property and heating needs. We'll discuss the best options for your home and provide an initial estimate over the phone or online.
Home Survey & Quote
Our engineer visits your home to assess your heating requirements, pipework, and flue position. You receive a fixed-price quote with no hidden costs.
Installation Day
Our Gas Safe registered team installs your new boiler, typically in a single day. We remove the old boiler, fit the new one, and test everything thoroughly.
Handover & Aftercare
We walk you through your new boiler and controls, register your warranty, and provide all Gas Safe documentation. Ongoing support is always a phone call away.
Our Recent Installations
Real boiler installations completed by our Gas Safe engineers across London.
Glow-Warm Compact
Boiler InstallationGlow-worm boiler supplied, installed, and fully commissioned by Gas Safe engineers. Warranty registered and handover completed.
Vaillant EcoTec
Boiler InstallationVaillant boiler supplied, installed, and fully commissioned by Gas Safe engineers. Warranty registered and handover completed.
Worcester Bosch
Boiler InstallationWorcester Bosch Greenstar boiler supplied, installed, and fully commissioned by Gas Safe engineers. Warranty registered and handover completed.
Live Google Reviews
See what real customers say about BeFix on Google.
Boiler Installation FAQ
How long does boiler installation take?
What warranty comes with a new boiler?
How much does a new boiler cost?
Should I get a combi boiler or a system boiler?
Can you move my boiler to a different room?
What is a system conversion?
Do you offer finance for boiler installation?
Which areas of London do you cover?
Get Your New Boiler Installed This Week
Join over 2,500 happy customers across London. New boiler supply and installation from £1,499 with up to 10 years warranty. Free survey, fixed-price quote, no hidden costs.