A proper powerflush — chemical, magnetic and pressurised — that brings every radiator back to life and protects your boiler warranty.
Cold spots on radiators that bleeding never fixes.
Black sludgy water coming out when you bleed.
Boiler banging, kettling or short-cycling.
Installer says you need a powerflush before they'll fit a new boiler.
We listen to the symptoms, inspect the system on-site and explain what's actually wrong — in plain English, not jargon.
Before we lift a spanner, you get a clear written price. No hidden charges, no surprise add-ons at the end.
Most jobs slot in within the same week — emergencies covered same-day, 24/7 across Surrey.
Dust sheets down, boots off, all gas work signed off to current Gas Safe regulations. Your home left cleaner than we found it.
Once flushed clean, we dose the system with high-quality inhibitor (Sentinel X100 or Adey MC1+) and fit a magnetic filter to protect the system going forward.
We use a Kamco or MagnaCleanse pump that reverses flow direction and dislodges debris that DIY chemical cleans can't shift.
Each radiator isolated and flushed in turn — including the dead ones at the end of the run that normally never see clean water.
MagnaClean or Adey magnetic filter installed during the flush — catches future sludge before it can reach your boiler.
Sentinel X100 or Adey MC1+ dosed to the correct concentration so corrosion is genuinely prevented for the next 5+ years.
We'll show you the black water out vs the clean water back in — visible proof the work was actually done.
A typical 10-radiator system is a single-day job. Larger or heavily sludged systems may need a second day — we'll tell you upfront.
Book any boiler repair this month and we'll include our 21-point health check at no extra cost.
A chemical dose pours cleaner into the system and lets the existing pump circulate it for a few weeks. A real powerflush uses a high-flow pump that physically reverses direction, breaks up debris, and forces it out of each radiator individually. The difference is night and day.
Multiple cold radiators despite bleeding, black water on bleeding, boiler kettling or short-cycling, and any new boiler install onto a system over 8 years old. If you only have 1 sluggish radiator, you might just need a single-radiator flush — we'll tell you honestly.
With a magnetic filter and correctly dosed inhibitor, a properly flushed system stays clean for 5–10 years. Without those, it can re-sludge in 18 months. We always fit both.
Same trusted engineer, same fixed pricing — wherever you are in our coverage area.
Local. Gas Safe. Available 24/7. Get a fast, no-obligation quote — most enquiries answered the same day.
