Glow Worm Boilers Rated: Is Glow-worm A Good Boiler Brand?

Matthew Knight

In this article

British boiler brand Glow-worm has more than 75 years of experience in the heating business and says it is committed to 'top quality, reliability and exceptional durability'.

Glow-worm has several different gas combi boiler ranges, including Glow-worm Ultimate boilers, Glow-worm Betacom boilers, Glow-worm Easicom, Glow-worm Essential boilers and Glow-worm Energy boilers. Glow-worms ranges encompass all different types and sizes of boilers including combi boilers, system boilers and regular heat-only boilers.

You can find more details about the individual products in these ranges in our Glow-worm boiler reviews.

More than 7,000 members of the general public take part in our annual boiler brand reliability and customer satisfaction survey, enabling us guide you to the best and worst boiler brands. We also conduct a survey with more than 150 trusted boiler engineers to get their independent views on which boiler brands are the best.

Which? verdict on Glow-worm boilers

Here, you'll find out how reliable Glow-worm boilers are, and what Glow-worm owners think about their boiler. We also reveal what trusted heating engineers think of Glow-worm boilers' build quality, and much more.

The reliability and customer score are based on responses from a May and June 2020 survey of 7,500 boiler owners. Engineer recommendation, build quality, availability of parts and spares, and ease of fixing a common fault and ease of servicing are based on responses to a June 2020 survey of 153 Which? Trusted Traders heating engineers.

Which? members can log in to view what owners and engineers make of Glow-worm in the table below. If you're not already a member, try Which? for one month.

Overall score
Reliability
Customer score
Engineer recommendation
Build quality
Availability of parts and spares
Ease of fixing a common fault
Ease of servicing

How much do Glow-worm boilers cost?

Glow-worm boilers cost between £640 and £1,520, depending on the type and size of boiler.

Choosing the best Glow-worm boiler

The number of years included on the standard Glow-worm warranty varies by boiler range. For warranty protection, either complete and return the warranty form that comes with the box or fill in the warranty form online.

Glow-worm will provide extended warranty packages that last between three and five years.