We also provide a power flushing service. ‘Powerflushing’ is a cleaning process that removes deposits of sludge, rust, debris and blockages from a central heating system and greatly improves its performance and operation.

If sludge and debris is not removed from heating systems, it can accumulate in radiators, pipework and heat exchangers, causing severe blockages. This diminishes the transfer of heat and can result in pipe, radiator valve and heating control servo valve damage, and ultimately premature failure of the boiler.

Powerflushing is a popular method of cleaning and maintaining a central heating system. A powerflushing unit sends water at high velocity through the system to dislodge and remove debris, limescale, and sludge build-up. A thorough powerflush will improve heat distribution throughout the property, subsequently lowering household energy bills and increasing system reliability.

How often should you powerflush central heating to maintain performance?

This depends on the material of your radiators, the age and type of your boiler, and the hardness of your water. It is generally agreed upon that central heating systems should be flushed every 5 to 6 years in hard water areas or every 8 to 10 years in soft water areas to maintain high performance.

Signs that a central heating system may need a powerflush:

  • Excessive noise from radiators, boiler or heating system pump
  • Leaks coming from your radiators
  • Radiators have cold patches, particularly at the bottom.
  • Boiler keeps breaking down and needs to be restarted.
  • Central heating takes longer than expected to warm up.
  • Some radiators struggle to heat up as well as others.
  • No water escapes when you bleed a radiator.
  • When you bleed a radiator, the water is discoloured.

Powerflushing Price 

Prices are valid from 1st December 2021.

All prices are subject to VAT.

Powerflushing (Jetflush)


Including chemicals £375

Call us on
01993 685 000
07501 199 010
or email
info@cotswoldheatingservices.co.uk for a quote or to make a booking.

 Service areas

Gavin is based in Carterton, and covers most of Oxfordshire including Appleton, Bampton, Brize Norton, Burford, Carterton, Clanfield, Cumnor, Eynsham, Faringdon, Grove, Kidlington, Kingston Bagpuize, Marcham, Shrivenham, Southmoor, Standlake, Witney, Woodstock, Oxford, and everywhere in between. He also covers some areas of Gloucestershire, including Lechlade and Fairford.

Contact us

If your plumbing or heating system has been causing you trouble and you aren’t sure what to do, call Cotswold Heating Services. We will set up an appointment to evaluate the situation and provide you with the appropriate solution.

Office: 01993 685 000
Mobile: 07501 199 010
email: info@cotswoldheatingservices.co.uk

VAT No. 396 1984 40

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Gas Safe Registered

We are a Gas Safe registered business (reg. no. 629937) and install, service, repair and commission all makes of gas boilers, cookers, hobs, gas fires and water heaters.

OFTEC Registered

Cotswold Heating Services are registered with OFTEC (reg. no. 103337) to install, service, repair and commission oil boilers and to carry out oil tank installations. 

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