All engineers Gas Safe and OFTEC certified
Long-term client recommendations
Detailed quotations with design temperatures
A trusted name in heating since 1994
We’ve been solving heating headaches for businesses and homeowners in Princes Risborough and beyond since 1994. Over the years, we’ve built a reputation for reliable service, technical know-how, and a friendly approach that makes a real difference. Read our latest blogs for expert advice, heating tips, and helpful insights from our experienced team.
From complex industrial installations to keeping your boiler ticking over at home, we treat every job with the care it deserves. Our focus is always on safety, compliance, and making sure you get warmth and comfort without the hassle, which is why J K L Heaters Ltd supports customers across industrial, commercial, and domestic heating.

What we offer


Why choose us for your heating needs?
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All engineers are Gas Safe (20247) and OFTEC (102585) registered for your safety.
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Free, no-obligation site surveys and detailed quotes for clear decision-making.
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Authorised by top brands like Powrmatic, Ambi-Rad, Combat, and Reznor.
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Decades of experience with heating systems across multiple sectors.
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Members of Federation Of Small Businesses (1126693).


Heating services across multiple sectors
We provide professional heating services for a wide range of environments, including factories, warehouses, retail and leisure venues, schools, churches, healthcare facilities, commercial horticulture sites, and residential properties. Our team also supports landlords with gas safety certificates, helping homes and businesses stay safe, compliant, and efficiently heated year-round.
When you need guidance on the right solution, our about us page gives a clear picture of the experience behind the service. We’re proud to support you in Princes Risborough and the surrounding regions, delivering service that keeps you warm and worry-free, with help always close at hand through contacting us.
Since JKL have had the contract for maintaining our church’s gas-fired air heater, we have had no recurrence of any of the multiple problems we had with it previously over many years, such as (a) burner cut-outs, (b) randomly failing to stop heating when the programmed timer had told it to stop, and (c) blowing cold air continuously and indefinitely when heating demand ceased, instead of just stopping as it should. Engineer Micky got to the bottom of all the problems and sorted everything out for us, including wiring requirements (to support summer fan-only operation and misunderstood by previous firms) that had led to a relay being incorporated unnecessarily and which set-up had in turn led to some of the faults mentioned above. He liaised with the manufacturer a lot to get it right. There was also the annoyance that the heater would blow cold air at us while doing its warm-up; now it behaves as it should and only blows air into the church once the heat exchanger is hot. The work to install a replacement main fan a few years ago was also done without dismantling of overlying ducting that other engineers seemed to find necessary previously – saving a lot in time costs. Nice work all round – thanks a heap.
- AF B, Google







