Installed from £2295

Combi Boiler Installation

We install new combi boilers nationwide in as little as 24 hours. We're Which? Trusted Traders and offer warranties of up to 12 years on selected boilers.

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Worcester Bosch logo

About Combi Boiler Installation with Heatable

Combi or combination boilers are the most common type of domestic boiler in the UK.

Combi boilers can provide both hot water and central heating from a single unit making them the most efficient type of boiler - modern combi boilers are up to 98% efficient.

Due to their compact design, they are also ideal for homes with limited space, being able to be installed in small spaces like kitchen cupboards.

How much do combi boilers cost?

For a standalone combi boiler, prices can range from £700 - £2,000 and are available in a wide range of sizes. However, it's worth bearing in mind that these prices don't include Gas-safe installation or any additional labour.

With a Gas-Safe installation, you'll be looking at £2,050 - £3,900. And, at Heatable, we can fit your new combi boiler in as little as 24 hours.

How much can a new combi boiler save you?

This will depend on the efficiency of your current boiler and the new boiler you're searching for, but a new combi boiler could save you as much as £540 per year if you upgrade from an old G-rated boiler to a modern A-boiler.

Which combi boilers are available?

We stock a wide range of combi boilers from various award-winning brands like Worcester Bosch, Viessmann, Alpha and Glow Worm. 

We even have a range of different heat outputs — from 12kW to 40kW — so you'll find the perfect heat for your home.

Why get your combi boiler installed with Heatable?

Upgrading your home with a brand-new boiler from Heatable isn't just a significant improvement; it's a choice that comes with myriad benefits. When you choose us for your installation, you're choosing quality assured by our Gas Safe certified installation team. Additionally, we back our workmanship with a comprehensive 24-month installation warranty.

Our commitment to excellence extends beyond installation. We pride ourselves on providing exceptional aftercare and support. This dedication to quality service is why we became the first boiler industry member to be recognised as a Which? Trusted Trader. It's also the reason behind our thousands of 5-star reviews on the independent review platform, Trustpilot.

How long should a combi boiler last?

Modern combi boilers are designed to have a lifespan of around 10 to 15 years, but there's no reason they can't last longer if they are serviced and maintained.

How long is a combi boiler warranty?

New boilers from Heatable have a range of warranties from 5 to 12 years depending on the boiler you choose.  

For most boilers offered by Worcester Bosch, the guarantee is 10 years, except for the entry-level Worcester Bosch 2000 which comes with a 7-year guarantee as standard.

Which combi boiler do you need?

The precise model that is right for you will depend on your specific goals and budget. If you would like us to recommend a variety of boilers that would be suitable for your home, use our free tool here.

Top features include
  • Which? Best Buy award winners for over 10 years
  • Impeccable care under the 'Worcester guarantee'
  • Leading boiler efficiency rates

Combi Boiler Deals

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Worcester 2000

Time tested Worcester quality that’s kinder on your wallet, and easier on the eye. Pick the 2000 for cosier 1-3 bedroom homes.

  • Available in 25Kw & 30Kw
  • 7 year product warranty
  • Compact cupboard fit
  • Low operation noise
  • Buy now pay later finance

    400mm (w) x 724mm (h) x 300mm (d)

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    Worcester 4000

    The UK's best selling combi boiler, just got better. Crammed with the latest energy tech and a gorgeous facelift. Choose the 4000 for max bill savings in your 2-4 bedroom home, whilst it looks damn good doing it.

    • Available in 25Kw & 30Kw
    • 10 year product warranty
    • Low operation noise
    • 2 years 0% APR finance

      400mm (w) x 724mm (h) x 310mm (d)

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      Worcester 8000 Style

      The UK's best selling manufacturer brings you the UK's best looking boiler, and it's not just a pretty face. Full colour display and industry leading hot water flow rate gives this the edge over its sister boiler, the 8000 Style.

      • Available in 30Kw, 35Kw & 40Kw
      • 10 year product warranty
      • Maximum hot water performance
      • 2 years 0% APR finance

        400mm (w) x 724mm (h) x 310mm (d)

        Buy your new boiler, better.

        All-inclusive installations

        Get a whole lot more, for a whole lot less
        Which? Trusted boiler installers

        The UK's first Which? Trusted Traders for new boilers, online.

        Up to 4 years

        Interest free boilers

        APR

        On selected boilers

        Book your install, as quick as next day.

        If ordered before 3pm
        Heatable emergency boiler installations

        Expert, local installers

        We fit boilers in every corner of the UK

        Fit boilers? Fit for us.

        Which? Trusted Traders
        Which? Trusted Traders. The first and only online boiler installation business to become a Which? Trusted Trader.
        Heatable aftercare
        All-inclusive aftercare. Each and every installation gets our exclusive 12 month workmanship warranty.
        Price promise
        Price promise. On our boiler installations, if you find a like-for-like price that's cheaper than we've quoted, we'll match it. Simple as that.
        5 star reviews
        5 star reviews. Across Trustpilot, Google and Reviews.io, we've got over 10,000 5 star reviews with an average rating of 4.9.
        Balls to Cancer
        Balls to Cancer. For every energy saving installation, we donate to the incredible charity, Balls to Cancer.
        Gas safe registered
        A safe choice. We're Gas Safe registered for boiler installations, and MCS certified for solar installations.

        FAQs

        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, you can. All of our installations have finance options available. You can spread the cost over 3, 5, 7 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. Deposits are optional.
        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.