News & advice
Advice from the engineers.
Plain-English guides to boilers, radiators and hot water, written by the people who fix them.
Boilers · 5 min read · 22 October 2026Is it time to replace your boiler? Seven signs to look for
Boilers rarely die without warning. Here's what to watch for, and when a repair stops making sense.
Hot water · 4 min read · 22 October 2026What is an unvented cylinder, and is it right for my home?
Mains-pressure hot water, no loft tank. How they work, who they suit and what they need.
Radiators · 4 min read · 22 October 2026Why is my radiator not working?
Cold at the top, cold at the bottom or cold all over. Each one tells you something different.
Central heating · 3 min read · 22 October 2026Why you might need a power flush
Sludge is the silent bill-raiser in most UK heating systems. Here's how to tell, and what a flush involves.