A new boiler is a big decision. You deserve a team you can trust.

For more than 45 years, families across Northamptonshire have trusted Custom Heat & Cool to keep their homes warm. We’re not a faceless online retailer or a one-person operation juggling jobs. We’re a local, family-run business with our own employed, Gas Safe registered engineers covering Northampton, Corby, Daventry and Wellingborough.

September is the smartest time to replace an ageing boiler: our diaries are freer, so you get an unhurried survey and your new boiler running long before the cold returns. And this September the choice is yours: 10% off your installation, or a full year of cover with a free Care Plan. Two ways to say yes.

Your choice of offer — 10% off, or a free 12-month Care Plan worth £240. Subject to terms and conditions.
Our own engineers, never subcontractors — the people who quote your job are the people who fit it.
Nothing to pay upfront — flexible finance from 0% APR, and we only invoice once the work is complete.

Book a free home visit

Prefer to talk it through? One of our local experts will visit at a time that suits you, carry out a full survey and give you a precise, fixed quote for your home. No obligation, no pressure.

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Get an instant online estimate

Short on time? Answer a few quick questions about your home and get an indicative price in minutes, with no home visit needed.

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Why replace your boiler now?

When the really cold weather arrives, heating engineers across the country are stretched thin with emergency breakdowns, and a new boiler can mean a long wait or a rushed job. Sorting yours now means the opposite: a relaxed survey, an installation date that suits you, and a warm home ready ahead of winter.

And to reward homeowners who plan ahead, you can choose how you benefit.

Take 10% off your installation if you’d rather have the saving.
Or choose a free 12-month Care Plan (worth £240), and we’ll look after your boiler for a full year, so it’s protected, your warranty stays valid, and we’re a single phone call away if anything ever needs attention.

Whichever you pick, there’s no better time to take advantage of our off-peak offer.

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Trusted by thousands of families across Northamptonshire

Choose the free Care Plan, and here’s exactly what a year of cover gives you:

Your new boiler’s manufacturer warranty stays valid
Unlimited call-outs, with no excess and no call-out fee
Guaranteed same-working-day call-out, reported before 10am, Monday to Friday
Parts and labour on covered breakdowns
A dedicated phone line straight to our head office team
All work carried out by our own experienced, employed engineers

Worth £240, and genuine peace of mind the first time something goes wrong. After your free year, you can keep your cover from as little as 41p a day.

Spread the cost, with nothing to pay upfront. In partnership with Novuna Consumer Finance, we offer 0% APR finance for up to 2 years, longer plans for lower monthly payments, and a buy-now-pay-later option with nothing to pay for the first 12 months. Subject to status. We only ask for payment once your boiler is installed. Your chosen offer applies either way.