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Glow-worm has been building reliable, highly efficient boilers and controls for over 90 years, providing families across Britain with the warmth and hot water they need - when they need it.

Originally founded as The Glow-worm Boiler and Fireplace Co Ltd, we first started producing boilers in 1934 at the Derwent Foundry in Derbyshire, utilising the strong currents of the River Derwent to drive the manufacturing plant.

In 1966, we built an additional assembly facility in Belper to support the introduction and increased demand for domestic gas central heating boilers. We continue to remain close to our Derbyshire roots, with the Belper facility becoming home to Glow-worm's head office and manufacturing plant.

Service: made for you. Our exclusive network of installers maintains our high standards and provides the best possible service.

At Glow-worm, we know how important our installers are. With their expert product knowledge, our installers put all their energy into delivering the best possible service and highest standards. That’s why we support them, so that they can support you.

It’s this drive that has led us right to the top as one of the leading heating manufacturers in the UK today.

Our goal: to make our customers' lives easier.

We're constantly improving our products to guarantee high quality, reliability and durability. But it's not just our products that you can rely on; our customer service is always at your side. So you can stay relaxed all year round.

This high-quality build and performance of our products has even earned us an ‘Excellent’ rating from our customers on Trustpilot.

Did you know that some of Glow-worm's most popular boilers are manufactured in Britain at our Derbyshire factory? We have recently been accredited with ‘Made In Britain’ on our Energy, Ultimate and Easicom boiler range.

What is Made in Britain?

Made in Britain is an officially licensed mark bringing together the British manufacturing community. It is a not-for-profit organisation that helps to identify and certify British-made products.