Facebook pixel

New boilers fitted next-day.

Get a fixed quote in seconds,
no hidden costs, 0% APR finance.

Get boiler prices

New boiler

Next-day boiler installation
by Gas Safe experts.

New boiler
Get a quote

Boiler service

Valid warranty.
Annual nationwide service.

Boiler service
Get a quote

Boiler finance

From 0% APR.
Up to 120 months to pay.

Boiler finance
Get a quote
Which? Trusted Trader logo

Which? Trusted Trader

for 2 years running

Working with the best

Recognised by the biggest names in home services.

Uswitch
MoneySuperMarket
Google
Worcester
FGAS
Gas Safe
Glow-worm
Ideal
Vaillant
FCA
Viessmann

A clear, simple process

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

Pound icon
1

Get a fixed price

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

No signup needed

Boiler icon
2

Pick a package

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

0% APR finance available

Calendar icon
3

Choose install date

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

Next-day installation

Start your quote

Only the best A-rated energy efficient boilers

Boilers that cut your monthly bills.

Swipe to see more

Best value

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

Alpha Etec NX

Checkmark

11-Year Warranty

Ideal for small and medium homes

Stainless steel heat exchanger

Compact stylish design

Fixed price (inc. VAT)

£2,035

or, monthly from

£42

Shop Alpha

Budget boiler

Compact

Worcester Bosch 1000 24kW worcester

Worcester Greenstar 1000

Checkmark

5-Year Warranty

Designed for cupboards

Great design at a lower price

Innovative 'QuickTap' water saving

Fixed price (inc. VAT)

£2,145

or, monthly from

£45

Shop Worcester

Which? Best Buy Boiler

Best seller

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

Worcester Greenstar 2000

Checkmark

7-Year Warranty

Worcester's quietest combi boiler

Big brand budget boiler

New sleek compact design

Fixed price (inc. VAT)

£2,195

£2,245

or, monthly from

£46

Shop Worcester

Modern new design

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

Worcester Greenstar 4000

Checkmark

10-Year Warranty

Innovative 'QuickTap' water saving

Powerful to meet your needs

£150 off - Ends Friday 🎉

Fixed price (inc. VAT)

£2,465

or, monthly from

£51

Shop Worcester

Suitable for kitchen cupboards

Ideal Logic² Plus 24kW Ideal Logic² Plus 24kW overlay ideal

Ideal Logic² Plus

Checkmark

10-Year Warranty

Made in the UK

Built in frost protection

Compact design for cupboards

Fixed price (inc. VAT)

£2,485

or, monthly from

£52

Shop Ideal

Modern but affordable

Viessmann Vitodens 050-W 25kw Viessmann Vitodens 050-W 25kw overlay viessmann

Viessmann 050

Checkmark

10-Year Warranty

10 year warranty

Compact dimensions & quiet

Fits into kitchen cupboards

Fixed price (inc. VAT)

£2,515

or, monthly from

£52

Shop Viessmann

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:

Checkmark
iHeat:

Fixed Price Guarantee

Cross
Others:

Estimates that often change

Warranty:

Checkmark
iHeat:

Up to 10-Year Warranty

Cross
Others:

Standard 2-5 year coverage

Engineers:

Checkmark
iHeat:

Vetted Gas Safe Experts

Cross
Others:

Varies by subcontractor

Finance:

Checkmark
iHeat:

0% APR & No Deposit

Cross
Others:

High interest or cash only

Installation:

Checkmark
iHeat:

Next-Day Available

Cross
Others:

1-2 week waiting times

Hidden Fees:

Checkmark
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.

Which? Trusted Trader logo

Which? Trusted Trader

Independently endorsed for exceptional quality and trustworthy service.

Trustpilot 5 star rating

5★ Trustpilot Rated

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

FCA Authorised logo

FCA Authorised

Approved credit broker offering secure, transparent finance options.

Gas Safe logo

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.

Checkmark Local experts
Checkmark Fully insured
Checkmark Background checked
Checkmark Clean & Tidy guarantee
Gas Safe engineer installing boiler
Which? Trusted Trader logo
Professional boiler installation service
Gas Safe logo

Thousands of happy customers

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

Testimonial video

Booked next day installation - kept updated throughout the process.

Samuel

Boiler
Testimonial video

100% recommend iHeat - very easy and straightforward process.

Emily

Boiler
Testimonial video

Great service from website to installation - helped choose the correct product.

Lynton

Boiler
Testimonial video
Testimonial video

Contacted Monday, fitted Wednesday - home was nice and toasty when I got back.

Julie

Boiler
Testimonial video

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

Andy

Boiler
Testimonial video

Great experience with iHeat - customer service was excellent and very responsive.

Staylor

Boiler
Testimonial video

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

Kelly

Boiler

Amazing communication - clear and consistent comms throughout the process.

Rosie

Boiler

Fantastic from start to finish - online ordering was straightforward and quick.

Gareth

Boiler

Everything you need to know

Find quick answers to our most common questions.

Boiler help & expert guides

How much does a new boiler cost in the UK

How much does a new boiler cost in the UK

Based on data from over 7000 boiler installations completed by iHeat in the past 12 months, we’ve an...

Stephen Day profile photo

Stephen Day

Gas Safe Engineer

22 December 2025

Guides

The Best Combi Boilers in 2026

The Best Combi Boilers in 2026

Here’s a quick roundup of the best combi boilers for 2026.

Stephen Day profile photo

Stephen Day

Gas Safe Engineer

22 December 2025

Guides

Which Boiler is Best for a 4 Bedroom Home?

Which Boiler is Best for a 4 Bedroom Home?

When your old boiler breaks down and it comes time to replace it with a new one, it might seem diffi...

Stephen Day profile photo

Stephen Day

Gas Safe Engineer

22 December 2025

Guides

This Valentine's Day we’re asking - Does the size of your pipe really matter? 2025

This Valentine's Day we’re asking - Does the size of your pipe really matter? 2025

This Valentine’s Day we want to let you in on a dirty little secret…

Stephen Day profile photo

Stephen Day

Gas Safe Engineer

22 December 2025

Guides

Help Center

Upgrade your boiler today

Getting a quote takes less than 60 seconds,
select your type of boiler.

Start your quote
Installed from £1,985