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A clear, simple process

We help homeowners access fast, reliable home-energy solutions.

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1

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Answer a few quick questions about your home and current boiler.

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Pick a package

Choose from a range of top-rated boilers that fit your home and budget.

0% APR finance available

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Choose install date

Pick your date, we can install as soon as next day (order before 3 pm).

Next-day installation

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Only the best A-rated energy efficient boilers

Boilers that cut your monthly bills.

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Suitable for kitchen cupboards

Glow-worm Compact C24 24kW glow-worm

Glow-worm Compact

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5-Year Warranty

Hand-built in Derbyshire

Glow-worm's compact boiler

5 year warranty

Fixed price (inc. VAT)

£1,979

£2,079

or, monthly from

£41

Shop Glow-worm

Budget boiler

Compact

Worcester Bosch 1000 24kW Worcester Bosch 1000 24kW overlay worcester

Worcester Greenstar 1000

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5-Year Warranty

Designed for cupboards

Great design at a lower price

Innovative 'QuickTap' water saving

Fixed price (inc. VAT)

£2,149

or, monthly from

£45

Shop Worcester

Best value

Alpha E-Tec NX 28kW Alpha E-Tec NX 28kW overlay alpha

Alpha Etec NX

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11-Year Warranty

Ideal for small and medium homes

Stainless steel heat exchanger

Compact stylish design

Fixed price (inc. VAT)

£2,149

or, monthly from

£45

Shop Alpha

Which? Best Buy Boiler

Best seller

Worcester Bosch 2000 25kW Worcester Bosch 2000 25kW overlay worcester

Worcester Greenstar 2000

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7-Year Warranty

Worcester's quietest combi boiler

Big brand budget boiler

New sleek compact design

Fixed price (inc. VAT)

£2,219

£2,269

or, monthly from

£46

Shop Worcester

Modern new design

Worcester Bosch 4000 25kW Worcester Bosch 4000 25kW overlay worcester

Worcester Greenstar 4000

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10-Year Warranty

Our most popular boiler

Innovative 'QuickTap' water saving

Powerful to meet your needs

Fixed price (inc. VAT)

£2,399

or, monthly from

£50

Shop Worcester

Vaillant's best selling boiler

Vaillant EcoFIT Pure 30kW vaillant

Vaillant ecoFIT Pure

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10-Year Warranty

Hand-built in Derbyshire

Quiet operation for minimal noise

Compact cupboard fit solution

Fixed price (inc. VAT)

£2,449

or, monthly from

£51

Shop Vaillant

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:

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iHeat:

Fixed Price Guarantee

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Others:

Estimates that often change

Warranty:

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iHeat:

Up to 10-Year Warranty

Cross
Others:

Standard 2-5 year coverage

Engineers:

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iHeat:

Vetted Gas Safe Experts

Cross
Others:

Varies by subcontractor

Finance:

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iHeat:

0% APR & No Deposit

Cross
Others:

High interest or cash only

Installation:

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iHeat:

Next-Day Available

Cross
Others:

1-2 week waiting times

Hidden Fees:

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iHeat:

Everything Included

Cross
Others:

Extra charges for parts

Flexible Ways to Pay

0% Interest-Free Credit icon

0% Interest-Free Credit

Spread the cost without extra fees

Buy Now, Pay Later icon

Buy Now, Pay Later

Nothing to pay for 12 months

Low Monthly Payments icon

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.

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Which? Trusted Trader

Independently endorsed for exceptional quality and trustworthy service.

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5★ Trustpilot Rated

Over 10,000 verified 5-star reviews from real customers across the UK.

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FCA Authorised

Approved credit broker offering secure, transparent finance options.

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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.

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Gas Safe engineer installing boiler
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Professional boiler installation service
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Thousands of happy customers

Watch real stories from homeowners across the UK
who upgraded with iHeat.

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100% recommend iHeat - very easy and straightforward process.

Emily

Boiler
Testimonial video

Very competitive price - staff bent over backwards to help solve issues.

Andy

Boiler
Testimonial video
Testimonial video

Booked install just two days ahead - right before Christmas! Installation was smooth.

Adrian

Boiler
Testimonial video

Amazing from start to finish - Alex covered all my carpets to make sure there was no spillage.

Denise

Boiler
Testimonial video

Booked next day installation - kept updated throughout the process.

Samuel

Boiler
Testimonial video

My boiler broke before Christmas - iHeat fitted my new boiler within 2 days of application.

Montybeau

Boiler
Testimonial video

Great service from start to finish - heating engineer was fantastic - worked quickly and tidily.

Gavin

Boiler

Booked within 24 hours - able to book fitting of new boiler quickly.

Kelly

Boiler

Everything you need to know

Find quick answers to our most common questions.

Boiler help & expert guides

How Much Does a Heat Pump Cost? 2026 Guide

How Much Does a Heat Pump Cost? 2026 Guide

In the UK, a heat pump usually costs several thousand pounds, with most air source systems landing a...

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Stephen Day

Gas Safe Engineer

27 March 2026

Guides

Ideal F2 Error Code - How to Fix

Ideal F2 Error Code - How to Fix

Ideal F2 usually means flame loss.

Stephen Day profile photo

Stephen Day

Gas Safe Engineer

27 March 2026

Guides

Worcester Boiler Fault 227

Worcester Boiler Fault 227

Boiler systems utilise error codes as an internal diagnostic tool. They offer a swift indication of...

Stephen Day profile photo

Stephen Day

Gas Safe Engineer

27 March 2026

Guides

Worcester Bosch Boiler Pressure - UK Mega Guide

Worcester Bosch Boiler Pressure - UK Mega Guide

Worcester boiler pressure should usually sit around 1 to 1.5 bar when the system is cold

Stephen Day profile photo

Stephen Day

Gas Safe Engineer

26 March 2026

Guides

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Installed from £1,985