Over the years, heating systems collect black sludge (iron oxide) and limescale, especially in London’s hard water. It settles in radiators and pipes, blocks the boiler’s heat exchanger and makes the pump work harder. A power flush pushes a high-flow cleaning solution through the whole system to clear it out.
Fitting a new boiler to a dirty system shortens its life and can affect the warranty. We will check the water quality during the survey and tell you honestly whether a flush is needed.
Photographs from Green PHS jobs.
“Technical knowledge of work required was exhibited, and competitive and comprehensive estimates were given. An energetic and efficient outfit that accommodated changes without the "sucking of teeth" that often accompanies such things.”
Radiators, underfloor heating, cylinders, power flushing and smart controls.
Cold radiators, noisy systems, pumps, valves and controls diagnosed and fixed.
High-efficiency condensing boilers, fitted neatly, with up to 15 years warranty on boilers.
Panel, column and designer radiators, heated towel rails and TRVs.
Fixed-price annual service for gas and oil boilers to keep them safe and under warranty.
We cover South and South West London and north Surrey. Choose your area for local details.
Most homes take a full day, depending on the number of radiators.
Tell him what is happening. If it is a quick fix, he will talk you through it for free. If not, we will get an engineer to you, usually the same day.