Which? Trusted Trader
for 2 years running
Which? Trusted Trader
for 2 years running
Working with the best
Recognised by the biggest names in home services.
A clear, simple process
We help homeowners access fast, reliable home-energy solutions.
Get a fixed price
Answer a few quick questions about your home and current boiler.
No signup needed
Pick a package
Choose from a range of top-rated boilers that fit your home and budget.
0% APR finance available
Choose install date
Pick your date, we can install as soon as next day (order before 3 pm).
Next-day installation
Only the best A-rated energy efficient boilers
Boilers that cut your monthly bills.
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Why choose us for your new boiler?
We provide more than just a boiler. Compare our fixed-price service with standard local installers to see the difference.
Pricing:
Warranty:
Engineers:
Finance:
Installation:
Hidden Fees:
Fixed Price Guarantee
Up to 10-Year Warranty
Vetted Gas Safe Experts
0% APR & No Deposit
Next-Day Available
Everything Included
Other Installers
Estimates that often change
Standard 2-5 year coverage
Varies by subcontractor
High interest or cash only
1-2 week waiting times
Extra charges for parts
Pricing:
Fixed Price Guarantee
Estimates that often change
Warranty:
Up to 10-Year Warranty
Standard 2-5 year coverage
Engineers:
Vetted Gas Safe Experts
Varies by subcontractor
Finance:
0% APR & No Deposit
High interest or cash only
Installation:
Next-Day Available
1-2 week waiting times
Hidden Fees:
Everything Included
Extra charges for parts
Flexible Ways to Pay
0% Interest-Free Credit
Spread the cost without extra fees
Buy Now, Pay Later
Nothing to pay for 12 months
Low Monthly Payments
Small installments for up to 10 years
Peace of Mind Guaranteed
We're committed to providing you with the highest standards of service, backed by industry-leading certifications and thousands of satisfied customers.
Which? Trusted Trader
Independently endorsed for exceptional quality and trustworthy service.
5★ Trustpilot Rated
Over 10,000 verified 5-star reviews from real customers across the UK.
FCA Authorised
Approved credit broker offering secure, transparent finance options.
Gas Safe Engineers
Fully qualified and legally certified for safe boiler installations.
Professional service from
engineers you can trust
Gas Safe registered experts, installing nationwide.
Our vetted engineers ensure a clean, safe, and perfect setup for your home.
Thousands of happy customers
Watch real stories from homeowners across the UK
who upgraded with iHeat.
100% recommend iHeat - very easy and straightforward process.
Emily
Very competitive price - staff bent over backwards to help solve issues.
Andy
Booked install just two days ahead - right before Christmas! Installation was smooth.
Adrian
Amazing from start to finish - Alex covered all my carpets to make sure there was no spillage.
Denise
Booked next day installation - kept updated throughout the process.
Samuel
My boiler broke before Christmas - iHeat fitted my new boiler within 2 days of application.
Montybeau
Great service from start to finish - heating engineer was fantastic - worked quickly and tidily.
Gavin
Booked within 24 hours - able to book fitting of new boiler quickly.
Kelly
Everything you need to know
Find quick answers to our most common questions.
Boiler help & expert guides
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Worcester boiler pressure should usually sit around 1 to 1.5 bar when the system is cold
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