Power Flushing

Power flushing is the method we use to deal with the sludge that inevitably builds up in a central heating system.  Your central heating system starts to run at less than its full capacity with a subsequent drop in temperature.  To get the temperature up again you need to use more fuel which costs you more too.

The power flushing procedure requires forcibly cleaning your central heating system using water and chemicals at high velocity but low pressure, which protects the system from damage.

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We drain down the system and remove the central heating pump.  Then we connect the power flushing machine to the system and add the required cleansing chemicals.  Each radiator is cleaned of sludge individually.

Once we have cleaned every radiator and the water is running clear we add inhibitor and anti-freeze to the system to prevent future corrosion.

We use Magnaclean filters which provide long lasting protection.

So if you are in the Gloucestershire area and your central heating system requires power flushing, get in touch on 01452 412 549

Our Services

Boiler Installation

Repair & Maintenance


Commercial Services

Power Flushing

General Pluming


Oil Boilers

LPG Boilers

Gas Boilers

What Our Customers Say …

Oil boiler installation and electric showers.

Boiler Installation – Green Flame installed my boiler about 3 years ago and have come back annually to service it for me, their work has been fantastic.  I have recommended them to my Auntie who had a new boiler fitted and my daughter who had a new radiator installed and both of them were very happy with the work completed.  I also had a Worcester Wave installed, they helped me with the set up of this and were very helpful and always courteous.  Nathan is just a lovely chap!

Chris B

Full Central Heating Installation

I obtained quotes from 5 other companies and Green Flame were not only the cheapest but the most professional of all of them. They are easy going and were accommodating to any changes I needed to make – nothing was too much trouble for them! The company is very well managed and all the employees were smartly dressed. I would recommend them to anyone!

Kurtis J

Central Heating Service & Repair

My Central Heating system’s  having intermittent blips, I need an engineer, there’s one on CheckATrade with credulous tips. Green Flame is the company, Nathan the head guy, Reliable, prompt, competitive quoting, I’m happy to buy. Installation day, Nathan and team arrive on time, Clean, thorough, professional, the work done, worth every dime!

Mandy E

Boiler Installation

I had a new boiler installed by Green Flame after being recommended them by a friend and have had it serviced regularly since then.  Everything went very smoothly  and great communication, I will continue to use Green Flame for all work I need completed, is nice to find a company that is so trustworthy.


Central Heating Installation

I found Green Flame’s service excellent. Nothing fazed them despite the complexity of the project and they were reliable, punctual and delivered a superb sealed system which included a megaflow tank and boiler to suit our needs. I would recommend Green Flame – Nathan is an expert in his field and overcame some difficult issues others simply wanted to add extra money and consultants to sort out. Brilliant service, great people and superb value for money.


Boiler Installation

Spot on time keeping. Good communication. Good response, brilliant workmanship. Highly recommend.

Customer in Gloucester

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Our experienced and helpful staff will always be happy to assist you. For a no obligation estimate, please call today, or simply complete the form.


Unit 53
Space Business Centre
Olympus Park

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Power flushing
Pump repairs
Renewable energy products
Solar heating
Unvented hot water cylinders
Under floor heating

Bathroom fitting
Gas & oil boiler installations
Gas & oil boiler repairs
Gas & oil boiler servicing
Burst pipes
Gas & oil central heating installations
Commercial services

Energy efficient advice
Gas safety inspections
Gas water heaters
Heated towel rail fitting
Hob & gas oven fitting
Immersion tank replacements & repairs
Landlord safety certificates

Unit 53
Space Business Centre
Olympus Park