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Which? Trusted Traders
for 2 years running

New boilers, next day

Get a fixed price boiler quote in 60 seconds with Gas Safe engineers and 0% APR finance available.

Worcester Bosch 800 Style+

New boiler

Fast, next-day boiler installation from a premium Gas Safe engineer.

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Worcester Bosch 800 Inside

Boiler service

Keep your warranty valid with our nationwide annual service.

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Worcester Bosch 800 on Finance

Boiler finance

Spread the cost over 120 months, 0% APR available on selected boilers.

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Working with the best

Recognised by the biggest names in home services.

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A clear, simple process

Your boiler journey in 3 simple steps

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1

Get a fixed price

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.

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0% APR finance available

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3

Choose install date

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

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Next-day installation

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Only the best A-rated energy efficient boilers

Glow-worm Compact C24 24kW glow-worm

Glow-worm Compact

A-Rated @ 93% efficiency

626 mm(h) × 400 mm(w) × 270 mm(d)

From £1,979 inc. installation & VAT

Shop Glow-worm
Alpha E-Tec NX 28kW alpha

Alpha Etec NX

A Rating @ 94% efficiency

712 mm(h) × 440 mm(w) × 255 mm(d)

From £2,049 inc. installation & VAT

Shop Alpha
Worcester Bosch 1000 24kW worcester

Worcester Greenstar 1000

A-Rated @ 93% efficiency

655 mm(h) × 395 mm(w) × 285 mm(d)

From £2,149 inc. installation & VAT

Shop Worcester
Worcester Bosch 2000 25kW worcester

Worcester Greenstar 2000

A-Rated @ 93% efficiency

724 mm(h) × 400 mm(w) × 300 mm(d)

From £2,279 inc. installation & VAT

Shop Worcester
Worcester Bosch 4000 25kW worcester

Worcester Greenstar 4000

A-Rated @ 94% efficiency

724 mm(h) × 400 mm(w) × 310 mm(d)

From £2,329 inc. installation & VAT

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Viessmann Vitodens 050-W 30kW viessmann

Viessmann 050

A Rating @ 92% efficiency

700 mm(h) × 400 mm(w) × 300 mm(d)

From £2,499 inc. installation & VAT

Shop Viessmann

The UK's trusted choice for home heating

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Which? Trusted Trader

Independently endorsed for outstanding quality, trusted service, and expert workmanship you can depend on.

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Over 10,000 verified 5-star reviews from happy customers praising our reliable and friendly service.

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Gas Safe Engineers

Fully qualified and legally certified for safe, compliant boiler installations and servicing every time.

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FCA Authorised

Authorised credit broker offering secure, transparent finance options with total peace of mind.

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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...

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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.

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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...

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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

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Installed from £1,985