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Central Heating

Power flush

  • Fully trained engineers.

  • Fully insured.

  • Up to 5 year guarantee.

  • Power flush certificate.

  • All systems power flushed including microbore.

  • Power flush to the BS7593:2019 regulation

Power flushing service London & Home Counties

Our power flush complies to the BS7593:2019 British Standards regulation. Its a full power flush of the heating system & boiler with the Kamco CF90 machine & Chemicals. After powerflush a inhibitor is added. We offer a 2 year guarantee or 5 year if filter fitted. Our engineers have gone through all the correct training by Kamco & gas safe registered.

Symptoms of a need for a power flush:

  • Black water in the system

  • Air/hydrogen in radiators

  • Noisy boiler

  • Boiler keeps overheating

  • Keep replacing the pump

  • Little or no heat at the radiators

  • Cold spots in radiators

What are the benefits of Powerflush?

  • lower heating bills due to improved heating efficiency

  • quicker heat up times

  • radiator cold spots are cured so that the full surface of the radiator heats your room

  • increases boiler and pump life

  • removing contaminants and extending central heating system lifespan

  • curing boiler noise

Infer-Red Camera

We use Infer-red cameras to see the severity of the condition of the radiators. Without this camera we wouldn't be able to clarify that the radiator in question would be completely clean. We can even find leaks with these cameras.

Adey Magnaclean Pro 2

This is the filter that we supply & fit. for this to work at its maximum effectiveness it will need to go on the return back to the boiler. If we supply & fit  at  the

same time as the powerflush then you will be looking at £140.00 to supply & fit. This will give you 5 year guarantee.

Our Guarantee

Our powerflush comes with a certificate which is accepted by all insurance companies. We giva a 2 year guarantee so if any blockages caused by sludge or debris in the system, we will come back free of charge and re flush the system. If you have a magnetic filter fitted or we fit a system filter we will issue a 5 year guarantee.


Q . How do i know if I need a power flush ?

A. If your system takes a long while to heat up , your radiators are cold on the bottom or constantly filling with air , your boiler is making loud kettling sounds then it is possible that you need a power flush.


Q. My insurance company will not repair my boiler until i have a power flush , is this normal ?

A. Yes , we are doing more and more power flushes these days for insurance purposes , they will not put new parts into a boiler or system which they consider dirty.

Q. Do you give a guarantee?

A. Yes we do give our power flush a guarantee. We give 2 years. The guarantee covers blockages caused by sludge build up within the system.


Q. Do you issue a British Standards Certificate ?

A. Yes we issue you with BS7593-2019 certificate and on it will have our full company details and Gas Safe registration number.

Q. How long will a power flush take ?

A. We usually take between 4 - 8 hours to power flush your system depending on the amount of radiators and how dirty it is.

Q. Do you have to be Gas Safe Registered to power flush ?

A. A lot of companies will tell you no but as you have to work on and around the gas boiler then yes you do have to be Gas Safe registered.

Q. Can a power flush cause leaks ?

A. A power flush itself will not cause any leaks within your heating system and boiler. But if there is a corrosion scab sealing a pinhole in a radiator ​then it will leak, due to the corrosion being removed. As for pipe joints and boiler parts, a power flush will not harm them.

Q. Do you have insurance ?

A. Yes we have £2m public liability insurance.

Q. What chemicals and machinery do you use ?

A. Depending on the situation we use Sentinel X800 and X100 inhibitor or Kamco chemicals , we use Kamco CF90 or CF210  power flush machines and dual magnet filtration system with rad vibro tool to agitate the sludge in your radiators.

Q. Can microbore & single pipe systems be power flushed ?

A. Yes they can but takes longer and requires our specialist knowledge of power flushing heating systems.

Dartford Boiler & Heating Services

74 North Rd


Kent, DA13NB

Contact Us:

Tel: +44(0)1322 252015

Office Times: 

Mon - Fri 8:30am - 6:00pm

Sat 9:00am - 5:30pm

Sun Closed

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