Cold radiators, cold spots or a noisy boiler? A power flush clears the sludge out of your central heating across Exeter and Devon — cleaner system, warmer home, longer-lasting boiler.
Over the years, central heating systems build up sludge and rust inside the pipes and radiators — and that's usually what's behind cold spots, radiators that won't warm up and a boiler that bangs or gurgles.
A power flush pushes a cleaning solution through the whole system at high flow to shift all that gunk out. SWW carries out power flushes across Exeter and Devon, leaving your heating running cleaner, warming up faster and costing less to run — and it takes real strain off your boiler. We'll also add inhibitor to help keep the system clean going forward. It's often well worth doing before fitting a new boiler, too, so you're not pumping fresh heat through a dirty system.
If any of these sound familiar, a power flush will likely help.
Radiators warm at the top but cold at the bottom is the classic sign of sludge sitting inside.
If certain rads never really get going while others do, the flow's being blocked by build-up.
A system that takes an age to heat the house is often clogged and working harder than it should.
Banging, gurgling or kettling noises are often down to sludge and trapped debris.
Black or brown water when you bleed a radiator is rust and sludge — exactly what a flush removes.
Flushing before a new boiler protects your investment and is sometimes needed for the warranty.
It's a deep clean of your central heating — a machine pushes cleaning chemicals and water through the system at high flow to clear out sludge, rust and debris that build up over time.
Cold spots on radiators, some rads not heating, slow warm-ups, noisy pipes or a banging boiler, or dirty water when you bleed a radiator — all signs sludge has built up.
Most take the best part of a day, depending on the size of the system and how much build-up there is. We'll give you a timescale with your quote.
Usually yes — a clean system heats up faster and runs more efficiently, so you're not paying to push heat through a clogged system.
Other plumbing and heating work we handle across Exeter and Devon.
Annual servicing keeps your boiler safe, efficient and warranty-valid — and we fix them when they play up.
New boilers supplied and fitted by Gas Safe engineers — sized right for your home and installed cleanly.
Leaks, bursts, no heating or hot water — call us and we’ll get to you fast across Exeter and Devon.
Based in Exeter and covering the surrounding towns and villages across Devon.
Call, or send a few details and we'll get back to you with an honest, no-pressure quote.