Boiler making noise

My boiler has started making banging or gurgling sounds. What could be causing this and is it something to worry about?

Asked by June on 22nd Oct 2025
Expert Trade Answers
"Hi it could be one of two things sounds like the boiler is either low on pressure or heat exchanger is blocked many thanks Wayne"
Answered on 22nd Oct 2025 - Member since Jan 2019 - report
"condense trap or pipe blocked - must turn off boiler and sort asap"
Answered on 22nd Oct 2025 - Member since Jan 2024 - report
"It could be a number of things. I would recommend to get an engineer as soon as possible to get it checked before it cause more damage and cost a fortune to repair"
Answered on 22nd Oct 2025 - Member since Dec 2024 - report
"The gurgling probably air in system and pump might be worn is it combi or heat only or system boiler vented or unvented"
Answered on 22nd Oct 2025 - Member since Mar 2019 - report
"Boiler needs service main cause of noise is condensate is blocked clean the condensate noise will go if not then the boiler needs full service"
Answered on 1st Nov 2025 - Member since Oct 2025 - report
"It could just be something as simple as air in the system
Or low water pressure"
Answered on 22nd Oct 2025 - Member since Jan 2017 - report
"You have water in your heat exchanger. The water is blocked down the condenser trap or condense pipe. This is meat boiler haven't been serviced from a long time."
Answered on 22nd Oct 2025 - Member since Oct 2025 - report
"Hi sounds like the pump has stop I would get some one to check it ASAP it could damage the boiler if you keep use it."
Answered on 24th Oct 2025 - Member since Apr 2025 - report
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