Boilers advice guides

Find out how you can get the best boiler service to keep your boiler in tip-top condition.

Which? reveals the most common problems with boilers, how to fix them, and how much it should cost if you can't do it yourself.

Find out how to tell if your radiators are balanced, and how to balance them.

Expert tips on using heating controls and maintaining your heating system to reduce your energy bills.

Find out which boilers are the most energy efficient and how it's measured.

Here you can find out more about how Which? assesses boiler brands to reveal the best boilers that we recommend.

Find out whether we think Alpha boilers are a good investment. Our research reveals how reliable Alpha boilers are, and what their owners and heating engineers think of them

Find out how to use heating controls and thermostats to save money on your heating bills.

Boiler faults can be frustrating, costly and dangerous – but they aren't always obvious. Here are the warning signs that your boiler needs replacing

Watch our video to find out how to safely thaw your boiler's condensate pipe.