- 0800 Homefix Ltd - Proudly Serving London & The South East
- office@0800homefix.com
A power flush clears sludge, rust and debris from your central heating system, restoring circulation so radiators heat evenly and your boiler runs more efficiently. 0800 Homefix carries out professional power flushing across London and the South East using specialist equipment, with every job done by a Gas Safe registered engineer. There’s no call out fee, your price is agreed before we start, and the work is backed by a 12 month guarantee on our labour.
No call-out fee · Price agreed before we start · 7 days a week including bank holidays
Service
First-visit fix rate
Guarantee
No call out fee
Every engineer verified
Trade body accredited
Your property protected
Qualified for mains water
Formally qualified engineers
About Us
A power flush is a deep clean of your central heating system. Water and specialist cleaning agents are pumped through the radiators and pipework at high velocity but low pressure, so it dislodges built-up sludge, rust and scale without putting the system under damaging pressure. Once the debris is flushed out and the water runs clear, a corrosion inhibitor is added to protect the system going forward.
The result is a system that circulates properly again: radiators that heat evenly rather than staying cold at the bottom, quieter operation, and a boiler that doesn’t have to work as hard. Note that the power flush cleans the radiators and pipework, not the boiler itself, which is why we recommend pairing it with an annual boiler service.
Signs
If you’re noticing any of these, sludge build-up is the likely cause and a power flush is usually the fix:
Left unaddressed, sludge accelerates corrosion and shortens the life of both the radiators and the boiler, so it’s worth acting early.
our rates
The cost of a power flush depends mainly on the number of radiators in your system and its overall condition, since a heavily sludged system takes longer to run clear. Because it varies by property, we agree a fixed price with you before any work begins, with no call out fee added, so you know exactly what you’re paying before we start.
Full pricing is published on our rates page:
As a guide, a power flush is a one-off cost that typically pays for itself over time through lower energy bills and a longer system lifespan, since a clean system heats the same home using less fuel.
Duration
Most power flushes take between three and six hours, depending on the size of the system and how much sludge has built up. A typical home with a standard number of radiators is usually completed within a day, with no need for a return visit. Your engineer will give you a realistic timeframe once they’ve seen the system.
PROCESS
01
The engineer inspects your system, checks radiator temperatures and confirms a power flush is the right fix rather than a different fault.
02
A power flushing unit is connected to your system to circulate cleaning fluid through the radiators and pipework.
03
Sludge, rust and debris are dislodged and flushed out, radiator by radiator, until the water runs clear.
04
A corrosion inhibitor is added to protect the system and slow future build-up.
05
The engineer checks radiators are heating evenly across the surface, confirms the system is circulating properly, and leaves your property clean and tidy.
Benefits
A power flush isn’t just about cleanliness, it directly affects running costs and system life. A clean system needs less energy to reach temperature, which shows up on your gas bill. It also removes the sludge that causes corrosion, extending the lifespan of your radiators and boiler and reducing the chance of a breakdown. Many boiler manufacturers also require a clean system as a condition of installing a new boiler, so a power flush is often carried out ahead of a boiler installation.
Why us
Every engineer is Gas Safe registered, NVQ qualified, DBS checked and carries full ID you can inspect before any work begins. We use professional power flushing equipment that cleans the system thoroughly without disruption to your property. There’s no call out fee, your price is agreed before work starts rather than after the engineer is at your door, and every job carries a 12 month guarantee on our labour.
The people behind the service
When you call 0800 Homefix, a real named engineer attends your property. Every person on our London team is Gas Safe registered, NVQ qualified, DBS checked, and carries full ID. Here are some of the engineers who may attend your job.
8+ years experience · North, East & West London
With over 8 years of experience servicing North, East and West London, I specialise in locating hidden leaks quickly and accurately using non-invasive detection methods. As a fully Gas Safe Registered engineer with NVQ Level 3 qualifications, I focus on delivering reliable, professional solutions that minimise disruption and help customers avoid unnecessary damage and repair costs.
“I regularly find hidden leaks without removing tiles or floors—most customers are surprised how quickly we can locate the issue without damage.”
I specialise in boiler breakdowns and central heating systems, I enjoy solving complex faults and making sure systems are running safely and efficiently again, first time.
“In London properties, the most damaging leaks are the ones you can’t see. By the time a damp patch appears on a ceiling, the structural damage can already be significant. Finding it early – without demolition – is what this job is about.”
28+ years experience – London
“On an urgent call, the first thing I do is help the homeowner find and shut off the stopcock while I’m on my way. That one step stops the damage spreading and saves serious money. It only takes 10 minutes on the phone.”
What to expect
Every engineer arrives with a fully stocked van, carries Gas Safe ID you can inspect, and introduces themselves by name before entering your property. They explain what they have found and what the fix involves before starting any work – and they leave your property clean and tidy when they are done.
All engineers carry Gas Safe ID and are DBS checked. You can verify any engineer’s Gas Safe registration independently at gassaferegister.co.uk before work begins.
Our plumbers in London operate across all Greater London boroughs and areas within the M25. We have engineers based throughout the city so response times are fast wherever you are.
Barking & Dagenham, Hackney, Havering, Newham, Redbridge, Tower Hamlets, Waltham Forest
Brent, Ealing, Hammersmith & Fulham, Harrow, Hillingdon, Hounslow, Richmond upon Thames
Barnet, Camden, Enfield, Haringey, Islington
Bromley, Croydon, Greenwich, Lambeth, Lewisham, Merton, Southwark, Sutton, Wandsworth
City of London, Kensington & Chelsea, Westminster
St Albans, Hemel Hempstead, Stevenage, (London North crossover)
Dartford, Medway, Tonbridge, Canterbury
Guildford, Kingston upon Thames, Redhill
Slough, Reading, Oxford
Brighton, Portsmouth, Southampton
Customer reviews
Reviews independently verified via Google. We do not edit or filter customer feedback.
FAQ
Some Questions homeowners, landlords, and tenants typically ask before booking one of our plumbers in London.
A power flush is a deep clean of your central heating system that removes sludge, rust and scale from the radiators and pipework, restoring circulation so radiators heat evenly and the boiler runs more efficiently. A corrosion inhibitor is added afterwards to protect the system.
It depends on the number of radiators and the condition of the system. We agree a fixed price before starting, with no call out fee. Full rates are on our rates page.
Most take between three and six hours, and a typical home is completed within a day.
A power flush isn’t an annual job. Most systems need one every five to ten years, or sooner if you’re seeing signs of sludge such as cold radiators or noisy pipework. Keeping a corrosion inhibitor topped up and having the boiler serviced annually reduces how often a full flush is needed.
Yes. The water is circulated at high velocity but low pressure specifically to protect the pipework. On very old or corroded systems there’s a small risk that flushing reveals a pre-existing weak point, and if the engineer spots that risk during assessment, they’ll tell you before starting.
A power flush resolves problems caused by sludge and poor circulation, such as cold radiators, kettling noises and cut-outs. If the fault is with the boiler itself, that’s a separate boiler repair, and the engineer will tell you which you’re dealing with.
Radiators should heat evenly across their whole surface, the system should be quieter, and the water bled from a radiator should run clear rather than black.
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Gas Safe registered. No call out fee. Fixed price agreed before we start. Serving London and the South East 7 days a week.
Gas Safe Registered | Free On-Site Survey | Fixed Price Before We Start
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