Low boiler pressure is one of the most common heating faults across Wigan, Manchester, Liverpool, Preston, and Southport. If your boiler keeps losing pressure, a quick top-up might not be enough — it could point to a deeper issue needing professional attention.
Why Does Boiler Pressure Drop?
- Water leaks in pipes, valves, or radiators
- Bleeding radiators (releases air and water)
- Faulty pressure relief valve
- Expansion vessel failure
- Worn internal components from poor maintenance
How to Repressurise Your Boiler
If your pressure gauge reads below 1 bar, follow these steps:
- Turn off the boiler and let it cool completely.
- Find the filling loop — usually a braided hose beneath the boiler.
- Open both valves to let cold water into the system.
- Watch the gauge and stop at 1.5 bar.
- Close both valves, restart the boiler, and check heating and hot water.
When It's More Than a Quick Fix
If your boiler constantly loses pressure, is over 10–15 years old, makes strange noises, leaks, or simply can't heat your home efficiently — it may be time for a replacement rather than another repair.
We install Baxi boilers throughout the North West — energy efficient, reliable, and backed by long warranties. Finance available through Ideal4Finance with low monthly payments and no hidden fees.
Why Choose Go2 Plumbing & Heating?
Trusted local engineers, 10+ years experience
Gas Safe registered
Baxi approved installers
5-star reviews across the North West
Same-day callouts available
Competitive quotes, no pressure