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We've got a new boiler for every budget

Value
Get your fixed price for a new Glowworm boiler boiler
Glowworm boiler

Installed from £1,995

Popular
2 years 0% APR
Get your fixed price for a new Worcester boiler boilerWhich? Best buy
Worcester boiler

Installed from £2,095

Premium
4 years 0% APR
Get your fixed price for a new Vaillant boiler boilerWhich? Best buy
Vaillant boiler

Installed from £2,795

Premium
4 years 0% APR
Get your fixed price for a new Viessmann boiler boilerWhich? Best buy
Viessmann boiler

Installed from £2,895

Expert installers of the biggest boiler brands

Worcester Bosch boilersWorcester Bosch boilersVaillant boilersViessmann boilers

Get a new boiler in the blink-of-an-eye.

It's not what we do, it's the way that we do it.

You answer

Some nice and simple questions, like the type of boiler that you have, and some basic details about your home.

You pick

A new boiler that you love from a range of fixed price options that we've recommended for your home.

We fit

Your new boiler, flue and everything inbetween will be expertly installed in as little as 24 hours.

or, read how it works

Trust us, you can trust us.

Which? Trusted Traders

Which? Trusted Traders
for 3 years running

2023 • 2024 • 2025

Trustpilot

10,000+ 5-star
customer reviews

Trustpilot

Uswitch

Partners of Uswitch &
Moneysupermarket

Since 2022

Replacement boilers,redefined.

All-inclusive boiler installations

New boiler

Installation

Controls¹

Pipework

Flush

Flue

Filter

Recycling

Aftercare

Which? Trusted Traders

We've been Which? Trusted boiler installers for 3 years running.

2023 • 2024 • 2025

Get a new boiler with up-to 4 years
Interest-free boiler installationsAPR²

Next day boiler installations

If ordered before 3pm

Heatable installer

Expert, local installers

We fit new boilers in every corner of the UK.

Fit boilers? Fit for us.

Which? Trusted installations

  • Which? approved installers
  • Fixed online prices
  • Next day installs

Loved by many, not just a few.

Shop new boilers

Worcester Bosch BoilersVaillant BoilersViessmann Boilers
Worcester Bosch boiler installations

Worcester Bosch

The UK's most well-known boiler brand

Huge 10 year parts and labour guarantees

Awarded 'Which? Best Buy' status for 13 years running

Packed with cutting edge, energy saving technology

Learn more about Worcester Bosch boilers
New boiler installation prices vary depending on install type, and complexity of job. For an instant price, click the button above.
Viessmann boiler installations

Viessmann

Ruthless reliability from the German giants

10 year parts and labour warranty protection

Wide range of combi, regular and system boilers

Incredible performance and efficiency

Learn more about Viessmann boilers
New boiler installation prices vary depending on install type, and complexity of job. For an instant price, click the button above.
Vaillant boiler installations

Vaillant

A massive name in home heating

Lengthy warranties of up-to 10 years

Powerful and efficient with great aftercare

German engineering, manufactured in the UK

Learn more about Vaillant boilers
New boiler installation prices vary depending on install type, and complexity of job. For an instant price, click the button above.

New boilers, lower bills

Save up-to £840 per year on your heating bills with a new boiler³

Save up-to £840 a year when replacing an old, G-rated boiler in a detached home. Savings data from the Energy Savings Trust.

New boiler installations with smart thermostats

Smart saving.

Upgrade to a smart thermostat, and you could increase your energy savings by a further 10%*

You're in, safe hands

All new boiler installations are carried out by insured, qualified and highly skilled engineers.

Gas Safe boiler installations
Heatable installer

We work with, train and support 500+ boiler installers, all over the UK.

Paying for your new boiler

Boiler finance

Pay for your new boiler installation in installments, with up-to 4 years 0% APR and flexible deposits.

Up-front, by card

Pay in-full for your new boiler via your credit or debit card. Secure payments, with no fees.

Shop boiler types

Combi boilers

The most popular type of boiler in the UK

An ideal choice for most homes

Provide heat and hot water, on demand

No need for separate storage tanks or cylinders

Efficiency ratings up to 94%

Regular boilers

Perfect for busier, family sized homes

Deliver lots of consistent hot water

Compact, but require a separate hot water cylinder and header tank

If the boiler breaks, hot water is available via immersion

System boilers

Most common in larger, newer homes

Work alongside a pressurised hot water tank

Don't require a cold storage tank in the loft (like regular boilers)

Typically found in larger, modern homes

Types of new
boiler installations

From £1,885

Combi swaps

A replacement of an existing combi boiler

Straight forward installation process

Typically takes one day to complete

Single unit, not tampering with external components (tanks etc)

From £2,295

System/regular swaps

Replacement of an existing system/regular boiler

Straight forward installation

Boiler off the wall, new boiler on

Reconnects to your existing tanks and components

Typically reconnect boiler existing controls

From £2,685

Conversions

Replacing existing regular boiler, with a combi

More invasive and complex

Requires removal of existing tanks and cylinders

Re-piping of parts of the home's system

Takes 1-2 days to complete installation

With our boiler installation, you'll get

New Boiler
Gas Safe Installation
System Flush
Boiler Filter
Aftercare

Getting a new boiler
on finance

0% boiler finance

Spread the cost of your new boiler with up-to 4 years interest-free

Up-to 4 years 0% APR available on selected boiler replacement packages

£0 deposit options available

Easy, online quote and application process

Low monthly payments

Make your new boiler more affordable, with longer terms at 11.9% APR

Spread the cost of your new boiler installation over 3, 5, 7 or 10 years

£0 deposit options available

Multiple lenders for higher acceptance rates

Online application

We're a family business.

Founded in 2017 by two brothers, Ben and Sam, Heatable's already grown to be the 3rd largest installer of gas boilers in the UK. How? Because we've got great values, caring staff and impeccably high standards.

Brothers, Ben and Sam
Which? Trusted traders

Which? Trusted Traders. The first and only online boiler installation business to become a Which? Trusted Trader.

Heatable Aftercare badge

All-inclusive aftercare. Each and every new boiler installation gets our exclusive 12 month workmanship warranty.

Heatable interest free badge

Interest-free. We offer up-to 4 years interest free credit on our boiler installations. What's more, there's no minimum deposit too.

Heatable 5 star reviews badge

5 star reviews. Across Trustpilot, Google and Reviews.io, we've got over 13,000 5 star reviews with an average rating of 4.9.

New boiler FAQ's

This largely depends on the efficiency of your current boiler and how much energy you use. For example, you could save as much as £840 per year if you are upgrading from an old G-rated boiler to a modern A-rated boiler (along with a programmer, room thermostat and thermostatic radiator controls (TRV's)). For more details, check the Energy Savings Trust website.
The cost of a new boiler depends on a variety of factors, including the type of boiler you select, your location and the complexity of your installation.
Yes, in more ways than one. First, we're a Which? Trusted Traders which means we have to work to their strict standards and guidelines. Secondly, we're Gas Safe Registered, and so are all of the installers who fit for us. We're also fully insured, giving you total peace of mind.
On average installing a new boiler takes between 1 to 2 days to complete. If you are having your old boiler replaced in the same location and with the same type of boiler the process will be quicker (likely one day) compared to installing a different type of boiler in a new location.
Yes, we can certainly try to. Heatable works with a panel of lenders, so, if for whatever reason you didn't pass with our primary lender, we will pass it over to a secondary who will be able to assist.
That's not a problem. If for whatever reason you change your mind, or need to cancel your install, you can do so without any fees. If you have paid any monies via card, we will refund this directly back to your account.
All of our installation partners go through a lengthy and strict Which? Trusted onboarding process. They're fully insured, highly rated and carry a unique set of skills to get your job, done. You'll receive details about your engineer prior to your install, including photo ID, so you know who to expect.
Our booking calendar is a live system which checks the real-time availability of engineers in your area, so it should be bang-on. On the rare occasion that the date has been double booked, or there's an error, we'll be in touch to arrange an alternative or discuss your options.
Generally, no. If your boiler is in a typical home with two floors, scaffolding won't be needed. If your flue is located above a conservatory or in a particularly high section of your roof, it'd be best if we check first. You can submit an eSurvey and upload some images for us to run through before you book.
Yes, you can. All of our installations have finance options available. You can spread the cost over 3, 5,or 10 years at a rate of 11.9% APR. Or, you can spread the cost with 0% APR up-to 4 years on certain packages.
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