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What is a powerflush?


A powerflush is a means of removing sludge and other harmful products from central heating systems with the aid of chemicals and mechanically with a powerflushing machine. We only use a Kamco CF90 Power Flushing machine, in conjunction with our Kamco Combi Mag filter. In our opinion Kamco machines are the best units in the industry. The end product being a clean system and boiler water wise. At the end of the job, the system must be treated with inhibitor, so as to protect the system and avoid it returning to its original condition.


Why do some central heating systems require a powerflush?


Boilers and central heating systems can suffer from sludge and contaminants restricting flow and efficiency. Common symptoms are cold spots in radiators, excessive requirements to bleed radiators, boiler kettling, and pump failure. Fluxes and jointing compounds used in installing central heating and pipework are highly corrosive. Boiler manufacturers will not carry out warranty repairs for problems caused by sludge.


What can a powerflush achieve?


Like an athlete that gets rid of most of their fat and cholesterol, a system that gets rid of most of its sludge and contaminants will be more efficient, deliver better results, and be less likely to suffer pump and system breakdowns.


What can't a powerflush achieve?


Whilst a powerflush will remove most of the sludge and contaminants from a sysytem it can't achieve 100% removal. That said it gets it to a negligible level, that wont effect the system performance. It can't however make a radiator heat up to its full potential if it is fed with undersized pipework. This is often the case when a large radiator is piped with microbore pipes. Even if the pipework and radiator are totally clear of sludge, the flow of water into and out of the radiator will be less than is required to heat up the whole radiator to is maximum potential.

Other common problems that are more due to system design, other than blockages and sludge are. Radiators with thermostatic control valves fitted at top entry level to a radiator. Whilst this is popular with elderly customers to allow adjustment of the thermostatic radiator valve without bending down, the hot water pumped into the radiator will naturally travel in a ski slope motion to the outlet valve at the opposite bottom side, leaving the missed area cold.

Twin entry valves, whilst not so common today are found in a lot of old systems. This is where both the pipes for the flow and return enter the same radiator valve at the same side on a radiator. A powerflush will not overcome these design flaws, and they must be rectified prior to carrying out a full system power flush.


Can a powerflush damage my system?


If a part of your system has a pinhole with rust holding it together, or a poorly made joint or fitting, then a powerflush may bring forward a leak that will happen in the long run. Customers should consider this possibility, but this has happened on only two occasions in all the 15 plus years we have been powerflushing. As we were on site at the time, the situations were handled with ease.


How much does a Power Flush Cost?


We often hear people saying that a Power Flush is expensive. Even a small system normally takes a few hours to complete. The Power Flushing machine is very expensive, and the Engineer requires to undertake specialist training to operate it. The process needs to be constantly manned during the Power flush procedure. Our Power Flushing machine is the Kamco CF90, which is capable of powerflushing a system of 40 radiators in a 3 storey property. We offer a no obligation quote for all Power Flushes, however, we normally use the following formula. For a system of up to 6 radiators, we normally charge £275.00 inc. For each additional radiator over this, we would charge an additional £25.00 inc. Please note, hot water cylinders and towel rails are counted as if they were radiators. We don't differentiate between small and large radiators in our calculations.


What if after having a powerflush, the original symptoms return?


We will re powerflush a system at no charge within 3 years, providing the following conditions have been met. The central heating boiler must be serviced annually, within at least 13 months of each prior service. If the system is drained for whatever reason, when re filling the system either Kamco, Sentinel or Fernox inhibitor must be added to replace the inhibitors lost.

We recommend that new inhibitor is added to every system at every third year service to keep the system inhibitor potency at its maximum benefit. We can't offer any warranty to any system that has stainless steel, black true well or microbore pipes in any part of the system.


Magnaclean filters.


For added protection, you could also have a Professional Adey Magnaclean Filter installed in your central heating system. This helps to filter out sludge and debris from entering your boiler. It is not however a substitute for a system requiring a powerflush. Once again, we offer a free no obligation quotation for Magnaclean filters.



Quality Chemicals.


Like a top of the range car manufacturer, you wouldn't expect to see the likes of BMW recommending the use of a supermarkets own branded oils or lubricants. Likewise our policy is only to use quality chemicals for cleaning and chemical inhibition protection, such a Kamco, Fernox, Sentinel etc.



Most of Glasgow(sorry not the city centre) East Kilbride, Bellshill. Cambuslang, Barrhead, Neilston, Paisley etc.


Opening Hours

Mon - Fri 9am - 6pm


Outside of opening hours, there is a 24 hour answering service were a message can be left.  We will get back to you as quickly as we can.


Our rates don't change on bank or public holidays.