New Boiler Installation in {LOCATION:the South West}
Gas Safe registered boiler installers fitting new combi, system and conventional boilers — with a free home survey, a fixed price and most installations completed in a day.
- Gas Safe registered boiler installers
- Fixed-price quotes, no hidden costs
- Vaillant, Viessmann & Glow-worm accredited
Rated by homeowners across the South West
Accreditations
Gas Safe boiler installers you can verify
Boiler installation is notifiable gas work. Every new boiler we fit is installed and commissioned by a Gas Safe registered engineer, and registered so your manufacturer warranty stands.
Gas Safe registered
Every engineer on the tools is Gas Safe registered.
Vaillant accredited
Accredited installer for Vaillant boilers.
Viessmann accredited
Accredited installer for Viessmann boilers.
Glow-worm accredited
Accredited installer for Glow-worm boilers.
TrustATrader approved
Vetted and approved by TrustATrader.
Why homeowners choose us
A new boiler fitted properly, first time
Replacing a boiler is a major investment in your home. Here's what you get when you choose Heat Excel for your boiler replacement.
Transparent pricing
Your boiler installation quote is comprehensive. What we quote is what you pay — no hidden extras once the old boiler is off the wall.
Gas Safe registered engineers
Every gas boiler installation is carried out and commissioned by Gas Safe registered boiler fitters, then fully documented.
Manufacturer accredited
As accredited installers for Vaillant, Viessmann and Glow-worm, we can specify the right boiler and protect your warranty.
Clean, respectful work
Dust sheets down, shoes off, mess cleared. Most straightforward combi boiler installations are completed in a day.
Repair or replace, honestly
Not sure whether your boiler is worth repairing? We'll tell you straight — if a repair makes more sense than a replacement boiler, we'll say so.
Local to the South West
Local boiler installers covering Bristol, Weston-super-Mare, Clevedon, Portishead, Nailsea, Yatton and the surrounding areas.
Gallery of work
Recent boiler installations
Combi boiler installations, system boiler replacements and heating upgrades fitted across the South West. Tap any image to view it full screen.
Meet the team
Local engineers you can trust
Heat Excel is a small, focused team of qualified plumbing and heating engineers serving homes across the South West.
The same people who quote your job are the ones who fit it. Gas Safe registered, manufacturer accredited and locally based — we turn up when we say we will and leave your home warm and tidy.
Customer stories
Homeowners who let us fit their new boiler
Real reviews from customers across the South West after their boiler installation.
“Had new radiator and boiler fitted in the flat, Heat Excel were competitive, honest and very clean with there work, done a top job.”
“Another very good service from Heat Excel, installation of new boiler and replacement radiators in a day. Very efficient and clean.”
Our process
From first call to hot water
A boiler installation process built around clarity — you always know what happens next.
- Step 1
Book your free survey
Tell us what you need and we’ll visit your property to assess your existing system, hot water needs and the best boiler options. No obligation.
- Step 2
Get your quote
You receive a detailed, itemised quote covering every part of the installation, with the options explained in plain English.
- Step 3
Installation & aftercare
Our Gas Safe installers fit and commission your new boiler, then hand over certificates and stay available for servicing and support.
FAQ
Boiler installation questions, answered
Everything homeowners usually ask before booking a new boiler.
It depends on the boiler you choose, the type of system you have and the work involved — converting to a combi boiler, for example, takes longer than a straight swap. We survey your home free of charge and give you a fixed, itemised quote before any work is booked in.
Get your free quote
Tell us about your boiler and we'll take it from there
Whether you need a brand new combi boiler, a like-for-like boiler replacement or an honest opinion on whether your old boiler is worth repairing, send us a few details and we'll arrange your free, no-obligation survey.
- Free home survey, no obligation
- Honest quote in writing
- Gas Safe registered installation and certification