Hertfordshire's Highest Google Rated Boiler Installation Company
Answer a few quick questions and get your fixed price quote on screen in under 60 seconds. It's free, with no obligation to accept.
4.9 · 401 reviews
Save up to £840
a year on your bills
Installation by
Gas Safe engineer
Finance Through
Phoenix Finance
Just 3 Steps To Your Boiler Replacement
The fastest way of getting a new boiler and reducing your bills at the same time.
1.
Get your prices in seconds
Answer a few quick questions about your home and boiler, and your fixed prices appear on screen in seconds. You're under no obligation to accept.
Start From Here →2.
Book a call or online survey
Once you've seen your prices, book a quick call or an online survey with our team, whichever suits you best.
3.
We replace your boiler
Get your boiler installed by us. All our engineers are Gas Safe registered and fully qualified.
Buy Your New Boiler, Better.
Fixed-price boilers, with everything included.
Our new boiler installations come with everything you need, plus more. From system flush to magnetic filter, and pipework to gas certificate — we've got it covered.
Get a Price Quote →
Gas Safe, qualified engineers
All of our engineers are friendly, insured, qualified and highly skilled.
- ✓ Gas Safe engineers
- ✓ Fully insured
- ✓ Award-winning Specialist Engineers
Seen a cheaper quote?
Send it over and we'll take a look. Where we can, we'll do our best to beat it. No pressure either way.
Workmanship warranty
Each and every installation gets our fuss-free 12-month workmanship warranty.
Save up to £840 a year on your bills
When upgrading from a G-rated to an A-rated boiler in a typical detached UK home.
Our Top Selling Boilers
The fastest way of getting a new boiler and reducing your bills at the same time.
10
YEAR
WARRANTY
WORCESTER
Starting From £1,795
or £24.99 / month
Worcester Greenstar 1000
10
YEAR
WARRANTY
IDEAL
Starting From £2,200
or £30.62 / month
Ideal Logic Max
10
YEAR
WARRANTY
BAXI
Starting From £2,400
or £33.40 / month
Baxi 800 Combi
Your New Boiler Installation Will Include
Award-Winning Heating Engineers You Can Trust
Gas Tech Heating was named Highly Commended at the 2026 Plumber Awards — the UK's biggest celebration of the trade — recognising founder Tom Twomey and the team for outstanding workmanship and customer care across Hertfordshire.
We're Gas Safe registered — so every installation is done to the gold standard.
Get a Price Quote →Why To Choose Us
A Fixed Price
We offer fixed-priced installations so there are no hidden costs or surprises.
Flexible Payment Option
Finance packages available to spread the cost of your new boiler.
Quick & Easy
Our process allows you to provide us with the information we need in just 60 seconds.
Hertfordshire's Trusted Experts
Customer Service & Aftercare
Our dedicated team are on hand to assist throughout the process and beyond.
100% Quality Guaranteed
We provide a 12-month workmanship guarantee on all our installations.
Gas Safe Registered
Every one of our engineers is Gas Safe registered — the legal standard for safe, quality gas work.
Don't Just Take Our Word For It
Hundreds of Hertfordshire homeowners trust Gas Tech Heating.
Over 401 reviews
Rated
Excellent
Across 401+ Reviews
Sailesh Barchha
July 11, 2026
Tom did a great job, was thorough and diligent and cleaned up afterwards. They operate an old-school style approach which is absolutely perfect in these times.
Jane Shippey
June 27, 2026
Great company, first class service with lovely staff and reasonable prices — highly recommend.
sab sha
June 11, 2026
Very happy with the service. They were able to locate the leak and remedy the problem. Very professional — I would definitely recommend and use them again.
Polly Collins
June 10, 2026
Totally professional service from initial consultation to installation of a new boiler and cleansing of a complex CH system. Would definitely recommend this company.
David Steel
May 15, 2026
Great work. Very responsive. Lovely guy too.
Margaret West
April 21, 2026
I woke up to an emergency boiler leaking. Called Tom at 7.30am — both Father and Son arrived within an hour, the problem was fixed and the electric back on.
Trustindex rating score: 4.9 of 5, based on 401 reviews
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Upgrade your boiler today
Getting a fixed-price quote takes less than 60 seconds — no obligation, no hassle.
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