Boiler Repairs We've Carried Out in Swanley
We carry out boiler repairs in Swanley and the BR8 area, attending both emergency same-day callouts and non-urgent diagnostic visits. Swanley's housing stock — a mix of 1960s and 1970s properties alongside newer developments — includes a number of boilers that are now in their second decade of use. Older boilers are more prone to component failures, and in our experience the most common faults we attend in Swanley are pump failures, PCB faults and heat exchanger issues.
One callout type that increases significantly in Swanley during winter is a frozen condensate pipe — the plastic condensate drain pipe that runs outside on many modern boilers can freeze in cold snaps, causing the boiler to lock out with a condensate error. This is a straightforward fix — thaw the pipe with warm water and reset the boiler — but many homeowners don't know that's the cause or how to fix it safely. We attend these callouts quickly and can also lag the condensate pipe during the visit to prevent it freezing again. If your boiler stops working overnight during cold weather, this is the first thing to check.
Common Boiler Faults We Fix in Swanley
Most boiler faults can be diagnosed and fixed on a single visit.
No Hot Water
Usually a diverter valve or blocked plate heat exchanger. We carry parts for all major brands and can fix most cases same-day.
No Central Heating
Stuck diverter valve, faulty pump, or thermostat/control issue. We diagnose the exact fault before recommending any repair.
Boiler Losing Pressure
System leak, faulty PRV or waterlogged expansion vessel. We find the root cause rather than just topping up and leaving.
Boiler Locking Out
Ignition failure, frozen condensate pipe, or error code fault. We read live diagnostics and fix the cause, not just reset it.
Boiler Making Noise
Kettling, banging or gurgling usually indicates limescale build-up, sludge or a failing pump. We diagnose and advise on the best fix.
Pilot Light Issues
A pilot light that won't stay lit usually points to a faulty thermocouple or gas valve. Repairable on the same visit in most cases.
Repair or Replace?
We'll always give you an honest answer at the visit.
As a rough guide: if your boiler is under 8 years old, a repair almost always makes sense. If it's over 12–15 years old with recurring faults, a new boiler is usually better value long-term — lower bills, manufacturer warranty and no more repair callouts. We'll quote for both options so you can make an informed decision.
New boiler installations from £1,800 fully fitted. Repairs quoted before we start — no hidden extras.