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Boilers · 4 min read

10 signs you need a new boiler

Most boilers give you plenty of warning before they give up. Here's what to look out for.

10 signs you need a new boiler

Boilers rarely fail without warning. If you spot two or three of these, it's worth getting a price for a replacement before the cold weather rather than during a breakdown.

  1. It's more than 12 to 15 years old.
  2. You're calling out an engineer more than once a year.
  3. Parts are getting hard to find, or the manufacturer no longer makes them.
  4. The flame is yellow or orange instead of crisp blue.
  5. There's a sooty mark or a smell around the boiler.
  6. Your gas bills keep going up even though you use it the same.
  7. It's noisy: banging, gurgling or whistling (often called kettling).
  8. It keeps losing pressure.
  9. Radiators take ages to warm up.
  10. The hot water runs hot and cold.

What a new boiler could save

An A-rated condensing boiler turns over 90% of its gas into heat. Upgrade from an old G-rated one in a detached home and the Energy Saving Trust estimate is up to £840 a year.

If a few of the signs sound familiar, our quote tool gives you a fixed price in under a minute.

Written by the Swinton team. Reviewed by Sean Kelly, Gas Safe engineer, and Robert Parker, NICEIC electrician.

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