Powerflushing
Sludge out with Kamco equipment, radiator by radiator, until the water runs clear. Done in a day for most homes.
Surrey, Kent & South London · 35+ years
Cold spots gone in a day. Clear the sludge, get every radiator hot and extend your boiler’s lifespan with our expert powerflushing service. From £495 for up to 8 radiators, guaranteed for 12 months.
We have gone from tepid radiators to piping hot.
Nic P.Powerflush customerThe short version
Why we work this way
Champion Powerflush is one engineer and one promise: every radiator in your home hot from top to bottom, checked with a thermometer before he packs up.
You get a quote at the free survey, before anything starts. No hourly rate and no surprises on the day.
We check every radiator with a laser thermometer before and after, so you can see the cold patches go. You get a report at the end.
Every powerflush carries a 12-month guarantee, from the same engineer who did the work.
Homes and businesses


Business
Services
Sludge out with Kamco equipment, radiator by radiator, until the water runs clear. Done in a day for most homes.
Not sure your boiler is worth saving? We will tell you straight.
New boilers fitted onto a properly cleaned system, so the warranty stands from day one.
Prices

Up to 8 radiators£495

After a free surveyQuoted
Bigger homes and businesses get a quote at the free survey.
What a powerflush costs, and whyRecent jobs
Boiler replacement
New boiler fitted beside the cooker hood, kitchen left clean.
Boiler replacement
New boiler fitted in the alcove, with the pipework below redone.
Boiler replacement
New boiler fitted in the same gap, clean and square.
Boiler replacement
New boiler fitted and boxed in beside the window.
Boiler replacement
New boiler with its expansion vessel and new pipework, shelves kept.
Boiler replacement
New boiler in the same cupboard, with neat white pipework below.
Boiler replacement
New boiler and flue fitted inside the tall cupboard.
Boiler replacement
Old boiler out, new boiler fitted in the same spot.
Boiler replacement
New boiler fitted with replacement pipework around the soil stack.
Reviews
Straight from people whose radiators Lee has sorted, in their own words.
“I thought we needed a new boiler as this is what we had been told by other engineers… but when Lee arrived to take a look he made it very clear that there was another way to go about it. Such a refreshing approach not to be sold the more expensive item purely in the interest of profit. A power flush has worked a treat and we now have 8 working radiators instead of 3, and such a cosy house.”
Charlie de G.Powerflush customer
About Lee
Champion Powerflush is Lee, based in Oxted. Lee is ex-British Gas, so he knows how the big firms work. The person who surveys your system is the one who flushes it, tests it and hands you the report at the end. No call centre, and no stranger turning up on the day.
Where we work
Outside the circles? We travel for larger jobs. Call and ask.
FAQ
A pump goes onto your heating and pushes water and cleaning chemicals round the pipes, radiators and boiler at high flow. It shifts the black sludge, rust and scale that settle at the bottom of radiators and clog the boiler.
We scan your radiators with a laser thermometer first, so we can see the cold patches. Then the cleaning chemicals go round and each radiator is flushed on its own until the thermometer shows no cold spots. Last, the system is dosed with inhibitor, rebalanced and tested again with the thermometer, and you get a report at the end.
For an average three-bed home with 8 to 10 radiators, 6 to 8 hours on site. Bigger systems can take a full day or two.
Not healthy pipework. A powerflush uses high flow, not high pressure, typically under 1 bar, which is less than your boiler runs at.
Most manufacturers want the system cleaned to BS 7593 before a new boiler goes in, or the warranty is at risk. A powerflush does that properly, so the new boiler is not pumping old sludge round from day one. More on flushing before a new boiler.
Yes. We look at the system, check the radiators and give you a quote. There is no obligation to go ahead.
Get your price
Rather talk? Call 07801 495 568 or send a WhatsApp.