Why Is My Boiler Losing Pressure?
Complete guide for Fife & Lothians homeowners facing pressure problems
Common Causes of Pressure Loss
Understanding why your boiler loses pressure in Scottish conditions
Hidden Leaks
Even tiny leaks from radiator valves or pipe joints can cause pressure loss. Victorian properties with original pipework are particularly vulnerable.
Recently Bled Radiators
Bleeding radiators removes air but also reduces pressure. This is normal and easily fixed by topping up your boiler pressure.
Faulty Pressure Relief Valve
If the PRV is passing water continuously, you'll see constant pressure drops. Check for dripping from the copper pipe outside.
Expansion Vessel Problems
Common in boilers over 10 years old. The vessel absorbs pressure changes - when it fails, pressure drops dramatically.
Frozen Condensate Pipes
Our #1 winter callout! External pipes freeze during Fife's annual frost days, causing complete boiler shutdown.
Professional Pressure Diagnosis
Expert assessment of your boiler's pressure problems
What Our Engineers Check:
Our Gas Safe registered engineers use professional diagnostic equipment to identify pressure loss causes quickly and accurately.
Victorian & Edwardian properties: We understand older Dunfermline properties' unique challenges with original pipework.
Coastal areas: Properties near the Forth face increased corrosion from salt air - we know what to look for.
How to Repressurise Your Boiler Safely
Step-by-step guide for emergency pressure restoration
Turn Off Boiler
Switch off and let cool completely before starting.
Locate Filling Loop
Find the silver braided hose with black handles underneath.
Open Valves Slowly
You'll hear water entering the system.
Watch Gauge
Stop at 1.2-1.5 bar on the gauge.
Close Valves
Ensure both valves are fully closed.
Restart Boiler
Switch back on and check normal operation.
Tip: If you have to top up more than once a month, you likely have a leak that needs professional repair.
Expert Pressure Problem Repairs
Our Gas Safe registered engineers handle all pressure-related repairs across Dunfermline, Kirkcaldy, and Fife:
- Pressure relief valve replacement
- Expansion vessel recharging/replacement
- System leak detection and repair
- Condensate pipe relocation
- Complete system pressure testing
Our boiler repair service covers all major brands and provides same-day emergency response when you need it most.
⚠️ When Should You Call a Gas Safe Engineer?
- You're topping up pressure more than once a month
- Pressure drops within hours of refilling
- You've spotted signs of leaks around the system
- The boiler shows error codes after repressurising
- Your energy bills have suddenly increased
- Radiators stay cold despite adequate pressure
Important: Frequent pressure loss can cause long-term damage through corrosion, sludge build-up, and premature component failure. Don't ignore persistent problems.
Need Help With Pressure Problems?
Don't let dropping pressure leave you in the cold. Expert help available across Dunfermline and Fife