Haverhill, Suffolk · Est. 2018

Eighteen years on the tools. I bring all of it to your boiler.

Boiler repairs, servicing, landlord gas safety certificates (CP12) and new boiler installations — in Haverhill and the surrounding towns.

I'm Lee Sawyer. I trained through a British Gas apprenticeship and spent 11 years as a British Gas gas technician before going independent. Same hands, same standards, now answering to you directly.

Book online in 60 seconds Or call 07397 671 525 Two hour arrival windows. Live "on my way" tracking. Mon to Fri, 8am to 5pm.
128 Five star Google reviews
5.0 Average rating
18 yrs In the trade
Gas Safe Register No. 636427Registered
A Vaillant boiler and unvented cylinder installed by Lee, with tidy copper pipework
Real work, not a stock photo.
Vaillant boiler & unvented cylinder. Haverhill.
Gas Safe registered #636427 Fully insured & DBS checked Same day digital certificates Two hour arrival windows
LS
Lee Sawyer[ Photo of Lee here ]
The engineer behind the van

"When I turn up at your door, you get the same engineer who answered the phone. No call centre, no subcontractors, no surprises."

I started out as a British Gas apprentice and stayed eleven years as one of their gas technicians, working on every make of boiler in every kind of home. Going independent meant I could do the job the way I always wanted to: tidy pipework, honest advice, and a price agreed before I start, not after.

Gas Champion is just me, Lee, and the standards I built over eighteen years. That is the whole promise, and it is why so many of my customers in and around Haverhill keep my number saved.

Lee Sawyer
Owner & engineer, Gas Champion Ltd
Gas Safe #636427
Companies House #11731061
What I do

Natural gas, heating and hot water, done properly.

From a no heat emergency to a full installation. Natural gas only, so every job is squarely in my wheelhouse. No oil, no LPG, no guesswork.

  • 01 / Most booked

    Boiler repairs & servicing

    Annual services that actually catch problems early, and repairs done right the first time. I carry common parts on the van, so plenty of faults are fixed the same day.

    Lee servicing a boiler
    See servicing options
  • 02 / Urgent

    Boiler not working?

    No heating or hot water? Start with my quick troubleshooting guide, or just call. I keep slots free for breakdowns and aim to get you warm again fast.

    Troubleshooting guide
  • 03

    Landlord certificates

    CP12 gas safety records for landlords, issued digitally the same day so you are compliant without the wait.

    Book a CP12
  • 04

    Boiler installation

    A new boiler fitted with the tidy pipework you can see on this page. Clear quote, no jargon, proper aftercare.

    Get an install quote
  • 05

    Everything else gas

    Radiators, powerflushing, smart thermostats, gas fires and general plumbing. If it touches your heating, ask me.

    Other services
How I work

No chasing quotes. No vanishing engineer. No mess left behind.

The bits people remember are rarely the technical ones. They remember whether you turned up, kept your word, and left the place clean. So that is what I built the business around.

  1. Before

    A real arrival window

    I book you a two hour window, not "sometime today", and send a live GPS tracking link when I set off so you can see exactly when I'll arrive.

  2. On the day

    Price agreed up front

    You know the cost before I lift a tool. Jobs range from £125 to £1,800 depending on the work, always confirmed at booking. No hidden extras.

  3. The work

    Tidy, and explained

    I leave your home as clean as I found it and tell you in plain English what I did and why, so you are never left guessing.

  4. After

    Paperwork the same day

    Digital certificates and records sent straight to your inbox the day I visit. No waiting around for the post.

Pay however suits you: Card Apple Pay Google Pay Bank transfer No chasing quotes, no awkward cash dance.
In their words

128 reviews. Every single one is five stars.

5.0
★★★★★
128 Google reviews
★★★★★
The best gas and boiler technician I have ever used. Professional, friendly and extremely knowledgeable.
L LiamHaverhill
★★★★★
Arrived on time, explained everything clearly and left the place spotless. Will definitely use again.
S SarahSaffron Walden
★★★★★
Diagnosed the problem quickly, had the parts and fixed it the same day. Honest pricing too.
J JamesLinton
Based in Haverhill

31 High Street,
Haverhill, Suffolk CB9 8AD

Not sure if you are in range? Drop me a message. If you are nearby and on natural gas, there is a good chance I can help.

Across Suffolk, Essex & Cambridgeshire.
Ready when you are

Get it sorted by someone who'll still answer the phone next winter.

Booking online takes about a minute: choose a service, see the price, pick a time — then you get a confirmation and a two hour arrival window. Prefer to talk it through first? Call or message me and we'll find a slot together.

Prefer the landline? 01440 575 525 · info@gaschampion.co.uk · Messages answered 7 days a week.

Book online Call Lee