24/7 EMERGENCY
Burst pipe? Boiler down? No hot water? Engineers on call right now —
24/7 EMERGENCY
Burst pipe? Boiler down? No hot water? Engineers on call right now —
We clear sludge, rust and debris from central heating systems across Westminster — cold radiators in Pimlico and Marylebone’s period townhouses, noisy boilers in Bayswater and Paddington’s converted flats, and uneven heating across multi-radiator systems in Mayfair and Belgravia’s larger properties. Fixed price, 12-month guarantee.
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Sludge and rust build-up inside radiators and pipework is one of the most common causes of poor heating performance. Here’s what tends to prompt a power flush across the borough’s period-heavy housing stock.
A radiator that's cold at the bottom but warm at the top is a classic sign of sludge settling inside it — common in the older cast-iron and period radiators found across Pimlico and Marylebone's Georgian and Victorian townhouses.
Uneven heating across a multi-radiator system, where some rooms stay cold while others work fine, often points to a blockage restricting flow to specific radiators — a frequent issue in Mayfair and Belgravia's larger multi-storey properties.
Kettling, banging or gurgling noises from the boiler or pipework in converted flats around Bayswater and Paddington are often caused by sludge restricting flow through the heat exchanger.
Dark brown or black water when bleeding a radiator is a clear sign of internal corrosion and sludge build-up throughout the system, common in older period properties across Fitzrovia and Soho.
A thorough system clean, carried out at a fixed price before any work begins.
We assess your radiators and boiler to identify which parts of the system are affected by sludge or blockages.
You receive a fixed price covering the full flush and any inhibitor top-up before any work starts.
Thermostats and zone valves or manifold actuators are wired and configured so each room or zone heats independently and efficiently.
We test heat output at every radiator and add fresh inhibitor to protect the system, covered by our 12-month guarantee.
Cost depends on the number of radiators and severity of the blockage. All prices are confirmed before we attend — no call-out charge.
Standard flat or terraced house system
Larger townhouse or multi-storey property
Large properties with extensive heating systems
Isolated cold spot on one radiator only
Required before some new boiler installations
Fast arrival for power flushing across W1, W2, WC1, WC2, SW1 and NW1 — without the delays of London-wide dispatch.
We check heat output at every radiator before and after the flush, not just a general system clean, so you can see the improvement. down and protected from freezing.
From Pimlico's Georgian townhouses to Bayswater's converted flats — we know the common causes of sludge build-up in each.
The same fixed pricing applies whether you're in SW1 Belgravia or W2 Bayswater. No zone uplift, no call-out charge.
A 4.9★ rating from local customers on both Trustpilot and Google.
All power flushing work carries our 12-month workmanship guarantee, issued in writing before we leave your property.
Read all reviews on Trustpilot →
Radiators in our Pimlico townhouse had been cold at the bottom for years, we thought it was normal. Power flush made a huge difference, every radiator now heats fully across its whole surface.
Boiler in our Bayswater flat kept making banging noises. Turned out to be sludge in the system, flushed it through and the boiler runs completely silently now.
Boiler in our Bayswater flat kept making banging noises. Turned out to be sludge in the system, flushed it through and the boiler runs completely silently now.
Yes — this is one of the most common installs we carry out in the borough. A new basement dig is typically built with a fresh concrete or screed subfloor, which is ideal for a full wet underfloor heating system.
A power flush for up to 6 radiators starts from £360. For 7 to 12 radiators it starts from £480, and for 13 or more radiators from £620. A single radiator flush for one cold spot starts from £95. All prices are confirmed before work begins.
Common signs include radiators cold at the bottom but warm at the top, some radiators not heating at all, a noisy or banging boiler, or discoloured water when bleeding a radiator. If you're seeing any of these across your Westminster home, a flush is usually the fix.
Often, yes. Installing a new boiler onto an old, sludged-up system can damage the new heat exchanger quickly. Many manufacturer warranties require evidence of a power flush before installation, which is common practice ahead of boiler installs across Marylebone and Fitzrovia's period properties.
No. There is no call-out charge, no zone surcharge and no area uplift for any postcode within Westminster. Our fixed prices are identical whether you're in Belgravia or Bayswater.
A standard flush for up to 6 radiators takes around 3–4 hours. Larger systems with more radiators can take up to a full day, depending on the severity of the blockage.
A professional power flush uses controlled pressure suited to your system and is safe for the vast majority of central heating setups, including period cast-iron radiators. Where pipework is very old or fragile, we'll flag this during the survey and advise on the safest approach before starting.
Same-day survey across W1, W2, WC1, WC2, SW1 and NW1. Fixed price before we start. 12-month guarantee on every job
We also cover these neighbouring boroughs — same fixed prices, same-day availability.
