And a quick note to everyone at Aspect to say thank you for being such an efficient, effective and easy company to deal with. Fantastic service! Much appreciated.
Alex, Herne Hill, SE24
When sludge builds up in your radiators, it can greatly affect how they heat your rooms. Caused by the gradual corrosion of water on the metal parts of your central heating system over many years, this sludge or ‘magnetite’ reduces the amount of heat transferred from your radiators. Magnetite tends to settle within radiators where the flow rate is lower. In turn, your boiler must work longer and harder for a radiator to reach the temperature on your thermostat.
A system power flush clears this sludge away, helping to restore the efficiency of your radiators so you can save on your energy bills.
There are three ways to tell if power flushing may be needed:
Radiators may have cold spots or heat up slowly for other reasons too, so feeling with your hand is the least reliable method of telling if a system power flush would be beneficial. You’ll only know for sure by arranging a visit from an engineer.
We can check for temperature issues within your radiators (the cold areas are shown as dark spots on a thermal imaging camera) and collect a water sample for testing so we can make a clear recommendation. With these methods, you can trust our engineers to perform a power flush only when necessary.
And a quick note to everyone at Aspect to say thank you for being such an efficient, effective and easy company to deal with. Fantastic service! Much appreciated.
Alex, Herne Hill, SE24
Another great experience from Aspect. Joe helped to solve my radiator issue. He took the time to explain how to troubleshoot any issues in the future and checked everything several times to make sure it was all working well following his work. Highly recommend.
Benjamin, Kingston-Upon-Thames, KT2
I called Aspect with an urgent issue, they managed to fit me in the same day at the time I needed, they turned up on time and dealt with the issue immediately, and offered lots of good advice.
Fatima, Streatham, SW16
A power flushing machine pumps clean water and a special cleaning solution through your central heating system to remove the dirt, scale and sludge inside. To start, we connect the machine to the pipework, flush for at least 2 hours and then remove the dirty water.
We then flush each radiator individually for around 30 minutes, before flushing the whole system at once until it’s clean – removing the magnetite that’s known for blocking radiator heat transfer. We’ll then vent and test the system. The process usually takes a full day, depending on the size and type of heating system you own.
Your engineer completes the system power flush by adding the correct amount of inhibitor that helps reduce corrosion in the future. We can also perform a chemical flush at a later date (done by simply running the boiler to let the chemicals circulate), which is a good way to keep your system clean a year or more after power flushing.
We’re fully trade accredited to power flush radiators and work on any part of your heating system. Aspect is registered with Gas Safe and a member of the Building Engineering Services Association (BESA). We also provide a 12-month guarantee for all workmanship that our engineers provide.
When you book a system power flush from a member of our team, you can count on getting a professional service and the friendly advice you need.
Our qualified engineers work in Central London and all of the London boroughs. We can also perform a system power flush anywhere in the Home Counties, including Berkshire, Bedfordshire, Buckinghamshire, Hertfordshire, Essex, Kent, Surrey and Sussex.
If you’d like to book power flushing or need help with your pipes and radiators outside of this area, we may still be able to help. Our scheduling team will check availability and see if an engineer can be sent to you.
Submit your callback request and someone will be in touch. We’re ready to take your call 24 hours a day, 365 days a year.
You can book our Gas Safe registered engineers for a variety of jobs. Read more about the range of services we provide here: –
Are you trying to cut the amount of heating you use? With energy costs on the rise, anything you do will likely save you money. Here are some simple steps you can take, from checking that your boiler's running efficiently to powerflushing your radiators... How to reduce your gas bills
Is your boiler losing pressure on a regular basis? We've created this comprehensive guide to explain how and why this happens, and what you can do to fix the problem. All info comes from our accredited heating engineers... Our guide on pressure
With good maintenance, your property's heating system will be less likely to experience issues like reduced heat transfer. Discover the best ways to keep it working efficiently in preparation for the winter months... Time to flush your system?