Power Flush in London
Central heating power flush to remove sludge, improve efficiency, and extend boiler life.
£350 - £600 inc. parts & labour
Gas Safe Registered Verified engineers
5-Star Rated Trusted by homeowners
Same-Day Service Fast response times
Fixed Prices No hidden charges
About Our Power Flush Service
Over time, sludge, rust, and debris build up inside your central heating system, reducing efficiency and causing cold spots on radiators. A power flush pushes high-velocity water and cleaning chemicals through your entire system to remove this build-up. The result: better heating, lower energy bills, and a longer-lasting boiler.
What's Included
- Full system flush with MagnaCleanse
- Chemical inhibitor added for ongoing protection
- Each radiator individually flushed
- Magnetic filter fitted where needed
- Noticeable improvement in heating performance
- Required before most new boiler installations
Common Problems We Fix
Cold spots on radiators
Radiators cold at the bottom
Noisy boiler or heating system
Boiler cutting out frequently
Discoloured water when bleeding radiators
Recommended before new boiler installation
Brands We Work With
Worcester BoschVaillantIdealBaxiPottertonGlow-worm
How It Works
1
Call Us
Call or fill in our form. We'll ask a few quick questions about your boiler.
2
We Diagnose
Our engineer arrives, diagnoses the fault, and gives you a fixed-price quote.
3
We Fix It
We complete the work, clean up, and provide a guarantee. Job done.
Frequently Asked Questions
How much does a power flush cost?
A full central heating power flush typically costs £350-£600 depending on the size of your system (number of radiators). We provide a fixed quote before starting.
How long does a power flush take?
A power flush takes around 4-6 hours for an average 3-bedroom home. Larger systems or heavily contaminated systems may take longer.
Will a power flush fix cold radiators?
In most cases, yes. Cold spots are usually caused by sludge build-up, which a power flush removes. If the problem is air in the system, we'll bleed the radiators as part of the process.
Do I need a power flush before a new boiler?
Most boiler manufacturers recommend a power flush before installing a new boiler. This protects the new boiler from contamination and is often required to validate the warranty.