Boiler and Heating Repair
System Cleaning
Don’t let your existing system drag your efficiency down!

System cleaning can help restore your current system to its optimum efficiency, increasing its life and reducing your energy bills.

What causes the problems?
Normally oxide sludge is present in a heating system caused by poor installation or maintenance. This must be removed from the system to comply with current building regulations whilst installing the new boiler or from your existing system if the boiler is not working correctly.

A poor system will have cold spots on the bottom of the radiators which decreases the performance of the system and normally making the boiler noisy.

Conventional systems (with cylinders and tanks), normally have more problems with sludge than combination systems. Some of the works below are included in all of our install prices.

What are the solutions?
We offer a range of solutions to help restore your system, and we will advise you on which is suited to your particular needs. Below is an outline of our prices and what is included in each service.

Power Flush

A Powerflush (or power flush) is an efficient way of removing the sludge and dirt that build up inside your central heating system over time. Without a Powerflush you could see a gradual reduction in efficiency of your boiler system as this sludge coats the internal piping and reduces circulating efficiency.

Most central heating systems develop this sludge over time, there will be more in older systems. You do not want to replace and update your boiler with the latest model without commissioning a Powerflush first. As the sludge and general dirt are disturbed in the new installation it will find its way into your new boiler and reduce its effectiveness or life span.

The following are some of the problems that could be avoided with a Powerflush as it removes the Magnetite sludge from your system: –

  • Cold Radiators
  • Boiler Deposits
  • Heating Pump circulation problems
  • Pipe Blockages
  • Internal Corrosion
  • System blockages
  • Noisy systems

As a result, the benefits of a professionally delivered Powerflush could be:-

  • Increased pump life as your central heating pump handles clear water instead of sludge
  • Curing radiator cold spots so that the full surface of the radiator heats your room
  • Improved central heating system efficiency so reducing fuel costs in future years.
  • Clearing the boiler heat exchanger to stop banging noises (kettling) and prolonging the boiler life
  • Reduces Hydrogen gas build up which can lead to radiator corrosion and reduced heat output
  • Clearing your system of contaminated water which could lead to internal heating system corrosion.

A Powerflush machine is used to complete the task. It is connected to your system and the central heating water is routed through the machine where it filters out the contaminants. The Powerflush literally flushes the new liquid through your central heating system. Once the task is completed the Engineer should refill your central heating system adding a corrosion inhibitor to prolong its operating life.

A Powerflush needs to be performed by trained engineers and there will be no mess or complicated installations. The Powerflush machine connects to your existing piping enabling the task to be completed rapidly, it can then be de-coupled leaving your heating system as it was, minus the sludge.

Chemical Cleaning

To call to site and drain central heating.
To install system cleaning chemicals.
To leave chemicals in system between 3 days and 2 weeks.
To call back, drain system and flush.
To install corrosion inhibitor.
To fully test, commission and balance system.
From £200


To call to site, drain central heating and cap of open vent and cold feed if the system is conventional (with cylinder and tanks).
To install Kamco Powerflush machine to suitable location on system.
To Powerflush radiators individually.
To drain and flush system.
To install corrosion inhibitor.
To balance system to best efficiency.
From £299


We advice the installation of a Magnaclean filter designed to remove possibly 100% of suspended black iron oxide. Supplied and installed £175

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