— Our preferred brands
Glow-worm boilers — installed by OneHeat
Glow-worm is one of Britain's most established heating brands, manufacturing boilers in Derbyshire since 1934. We install Glow-worm across Barnsley, Rotherham, Wakefield and Sheffield — a solid, no-nonsense choice that delivers reliable heating at a competitive price.
About Glow-worm
Glow-worm has been making boilers in Belper, Derbyshire since 1934 — making them one of the longest-established heating manufacturers in the UK. They're proudly British-made and carry the Made in Britain mark across their core ranges.
In 2001, Glow-worm became part of the Vaillant Group — Europe's second-largest heating manufacturer. That means their boilers share many of the same high-quality components as Vaillant products, but typically come in at a friendlier price point. If you want solid, dependable heating without paying a premium, Glow-worm is worth a serious look.
Their range covers combi boilers, system boilers and heat-only boilers, with A-rated efficiency across the board and compact designs that work well in homes where space is tight.
— Benefits
Why homeowners choose Glow-worm
British made since 1934
Nearly 90 years of manufacturing in Derbyshire — parts are widely available across the UK.
Competitive pricing
Premium engineering at a more accessible price point than some top-tier brands.
A-rated efficiency
High-efficiency models designed to reduce energy use and keep running costs down.
Easy to service
Straightforward design means any Gas Safe engineer can service and repair them with ease.
Thinking about a Glow-worm boiler?
Our Gas Safe engineers cover Rotherham, Barnsley, Wakefield and Sheffield. Get in touch for a no-obligation quote.