Boiler service guides

A white cloud coming from the outside of your house on a cold morning can be alarming. In most cases it is normal for a modern boiler.

The short answer is once a year. Here’s why that interval matters, when a service can’t wait, and how it differs if you’re a landlord.

Prices vary, and the cheapest isn’t always the best value. Here’s what affects the cost of a boiler service and how to spot a quote that’s too good to be true.

A long warranty is a big selling point on a new boiler — but it comes with conditions, and it’s easy to invalidate one without realising. Here’s how they actually work.

Boilers tend to fail when they’re worked hardest — the first proper cold snap. The good news is that most winter breakdowns are avoidable with a few simple habits through the year.

If a radiator is warm at the bottom but cold at the top, trapped air is the usual cause — and bleeding it is one of the few heating jobs you can safely do yourself. Here’s how.

An annual service can feel like a ‘maybe next year’ job when the boiler seems fine. But the case for booking one every year is stronger than most people realise — and it’s about far more than ticking a box.

‘Boiler service’ can mean very different things depending on who does it. Here’s what a thorough one actually involves, so you know whether you’re getting your money’s worth.

Modern boilers show a fault code when something isn’t right - a letter-and-number like F1, E119 or EA on the display. It looks alarming, but it’s genuinely helpful: it tells you and your engineer roughly where to look. Here are the families of codes we see most often.