Common Boiler Repair Issues in Bristol Homes
- Craig Hodge

- Jul 25
- 2 min read
Boilers are a lifeline in many Bristol homes, especially during those chilly West Country winters. When your boiler stops working properly, it can quickly disrupt your daily routine. In this blog, we explore the most common boiler repair issues faced by local homeowners, along with how to prevent them—and when to call in the pros at iPlumb Bristol.

Low Boiler Pressure
Low pressure is a common fault that can cause your boiler to lose efficiency or stop working entirely. This could be due to a water leak, recently bled radiators, or a faulty pressure relief valve. Check your pressure gauge: anything below 1 bar usually needs attention.
No Heating or Hot Water
Lack of heating or hot water can result from issues such as thermostat failure, airlocks, or broken diaphragms. Sometimes it's an easy fix, but more often, it requires a trained technician to resolve.
Leaking and Dripping
Boiler leaks can come from a range of causes including corroded pipes, faulty seals, or internal components such as the heat exchanger. Not only does this reduce boiler efficiency, but it could also cause damage to your home if left unchecked.
Strange Noises from the Boiler
Clunking, banging, or whistling sounds (often called "kettling") can indicate limescale build-up or trapped air in the system. These noises might seem harmless but are often signs of bigger problems developing.
Pilot Light Keeps Going Out
A pilot light that won't stay lit could signal a broken thermocouple, a draught blowing it out, or deposits in the pilot light jet. If your boiler model has a digital ignition, error codes may help diagnose the issue.
Preventative Maintenance Tips
Check boiler pressure regularly
Bleed radiators annually
Schedule annual servicing to keep your system efficient
These small steps can help you avoid expensive repair bills. See our boiler service page for more details.
Why Choose iPlumb Bristol for Boiler Repairs
iPlumb Bristol is your local expert for boiler repairs in Thornbury. With prompt service, certified engineers, and transparent pricing, we're trusted across the region to get homes warm again fast.
We also handle new boi
ler installations and offer ongoing maintenance services to keep your system running smoothly year-round.
Contact iPlumb Bristol for Expert Repairs
Don’t let a small boiler problem become a major headache. Whether you're dealing with low pressure, no heat, or strange noises, iPlumb Bristol is ready to help. Contact us today to schedule a visit from one of our experienced engineers.
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