Central Heating Powerflush
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A powerflush pushes water through a central heating system to shift sludge, rust and scale. It can help when radiators stay cold at the bottom, the boiler is noisy or the water runs black. However, a stuck valve or trapped air can look the same. Ask the engineer to check the system first and explain if a flush will help.
How this works
Not every cold radiator needs a powerflush. Ask the engineer what they think the cause is before they quote, because a stuck valve or trapped air gives similar signs.
Many repairs take a single visit, but that depends on the fault and the parts. The engineer can tell you what is needed once they have seen the problem. Ask for the price before work starts.
If the engineer finds a failed part or a seized valve, ask them to re-quote. Therefore you know the final price before any extra work begins. Keep a written note of the price you agree.
Guarantees differ from one engineer to the next. Ask what the engineer covers and for how long, because the terms are theirs and not ours. A written receipt helps if you need it for a warranty claim or a home sale.
What to expect
- 1 Request your free quote. Tell us your postcode and the nature of the problem. We pass your request to a local engineer.
- 2 Agree the price. The engineer looks at the problem and gives you a price. Ask for it in writing before any work starts.
- 3 Repair and paperwork. Ask the engineer what the work includes, what they guarantee and what records you get.