New boilers
Fixed-price install
Home energy, sorted.
New boilers, solar, heat pumps and more. Fixed online prices, no hidden costs.
Air conditioning
Heats & cools year-round
Solar & battery
Cut your energy bills
Heat pumps
Lower bills with BUS grant
Boiler servicing
Keep your warranty valid
EV chargers
Charge at home, fixed price
Which? Trusted Trader
Approved 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.
1
Get a fixed price
Answer a few quick questions about your home and current boiler.
No signup needed
2
Pick a package
Choose from a range of top-rated boilers that fit your home and budget.
0% APR finance available
3
Choose install date
Pick your date, we can install as soon as next day (order before 3 pm).
Next-day installation
Thousands of happy customers
Watch real stories from homeowners across the UK
who upgraded with iHeat.
Booked within 24 hours - able to book fitting of new boiler quickly.
Kelly
Very professional service - helpful advice on the phone, polite and informative.
Anne
Replacement costs below average - new boiler was fitted and running within less than 2 days.
David
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
Amazing communication - clear and consistent comms throughout the process.
Rosie
Very competitive price - staff bent over backwards to help solve issues.
Andy
Amazing from start to finish - Alex covered all my carpets to make sure there was no spillage.
Denise
Why choose iHeat
Fixed online quotes. Fast installations.
Trusted by homeowners across the UK.
Deluxe Boiler Brands
We install only top-rated boilers from trusted British and European brands.
Premium After Care
Dedicated support team for any post-installation questions or issues.
5-Star Reviews
Over 11,000 5-star reviews, proof of our reliable service and expertise.
Interest Free
Spread the cost with flexible 0% APR finance options.
Fixed Price Quote
Get a fixed quote in 60 seconds, installs as soon as next day.
Expert Local Engineers
Gas Safe registered experts serving homes across the UK.
Trusted and accredited across the UK
Which? Trusted Trader
Independently endorsed for exceptional quality and trustworthy service.
5★ Trustpilot Rated
Over 11,000 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.
Only the best A-rated energy efficient boilers
Boilers that cut your monthly bills.
Swipe to see more
Budget
Compact
Navien NCB 300
5-Year Warranty
Compact and space-saving design
Stainless steel heat exchanger
Energy-saving performance
Fixed price (inc. VAT)
£1,745
£1,945
or, monthly from
£36
Best value
Alpha Etec NX
10-Year Warranty
Ideal for small and medium homes
Stainless steel heat exchanger
Compact stylish design
Fixed price (inc. VAT)
£2,145
or, monthly from
£45
Suitable for kitchen cupboards
Glow-worm Compact
5-Year Warranty
Hand-built in Derbyshire
Glow-worm's compact boiler
5 year warranty
Fixed price (inc. VAT)
£2,095
£2,195
or, monthly from
£44
Budget boiler
Compact
Worcester Greenstar 1000
5-Year Warranty
Designed for cupboards
Great design at a lower price
Innovative 'QuickTap' water saving
Fixed price (inc. VAT)
£2,295
or, monthly from
£48
Which? Best Buy Boiler
Best seller
Worcester Greenstar 2000
7-Year Warranty
Worcester's quietest combi boiler
Big brand budget boiler
New sleek compact design
Fixed price (inc. VAT)
£2,245
£2,295
or, monthly from
£47
Modern new design
Worcester Greenstar 4000
10-Year Warranty
Our most popular boiler
Innovative 'QuickTap' water saving
Powerful to meet your needs
Fixed price (inc. VAT)
£2,445
or, monthly from
£51
Brains behind the boilers
Meet the senior management team that handles your installation from start to finish.
Ste
Operations Director
Olivia
Customer Services Manager
Barry
Procurement Manager
Alex
Aftercare Manager
600+
engineers across the UK
Which? Trusted Traders
Gas Safe certified
Fully insured
Local experts
Everything you need to know
Find quick answers to our most common questions.
Boiler help & expert guides
Boiler Finance Explained: Options, Costs and Eligibility
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Can a New Boiler Reduce Your Energy Bills?
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28 September 2026
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Viessmann 222-F Boiler Review
Viessmann is an international brand with over a century of trusted design and application, allowing...
Gas Safe Engineer
28 September 2026
Reviews
Viessmann Combi Boiler Costs
Viessmann combi boilers are renowned for their efficiency and technological advancement.
Gas Safe Engineer
28 September 2026
Guides
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no hidden costs, 0% APR finance available.