Expert HVAC Contractors in Northallerton

Most systems can be flushed in a day. Powerflushing is a process which removes debris and sludge from the system. How long it takes varies according to the size of the system, how dirty the system is and how well the existing heating system has been installed. It takes between half a day (6 radiators) and a day (24 radiators) to perform a complete flush.

No. We have been power flushing for over a decade and we have never had a leak caused by a power flush. Powerflushing machines are designed so that there is no increase in pressure in your system. It is a high flow rate that makes power flushing effective, not high pressure. Occasionally systems may have radiators with localised deep corrosion pits, with only a scab of rust preventing the system water from leaking out. The vigorous flow rate required to remove sludge and deposits may dislodge the scab, leading to a leak from the radiator. The advanced stage of corrosion required for such a situation means that the leak would occur imminently even without a power flush. If the problem is revealed by the flushing process, it is better that it occurs whilst a an engineer is present to remedy the problem, preventing an emergency leak.

Yes. Cleaning your heating system will remove harmful sludge and debris that damage the boiler, pumps, valves and cause blockages. Your heating system needs to be repaired and maintained on a regular basis to keep it working well. A sludgy system will shorten the life of the boiler, pump, valves and other parts and can invalidate manufacturer guarantees / warranty. Immediately after the powerflush, when the system is thoroughly clean is the best time to install new parts and carry out routine maintenance. It may be possible to arrange for additional work to be carried out in conjunction with the powerflush including: Installing a magnetic system filter Replacing the heating pump Replacing 3 port valve Replacing radiators valves Replacing radiators Boiler servicing Boiler replacement If you require any additional services please ask at the time of booking for prices and availability.

Yes - If the only problem with your heating system is sludge in the system, removing the sludge will resolve the issue. However, sludge builds up slowly over time, so if your heating system has been gradually deteriorating over a period of time it may well have damaged the boiler, pump, valves and other components significantly enough that they also need replacing to restore the system to working order. Once pipework becomes restricted by sludge complete blockages are more likely and completely blocked solidified pipework without water flow cannot be cleared by powerflushing alone and it may be necessary to chop out the blocked sections and replace them. If your heating system has got to the point it no longer works, power flushing is likely to be the first step in the repair process.

Analysis, cleaning chemicals, thermal imaging, inhibitor, report and certificate On arrival we will ask you to turn your heating on (if it is not already on). We will take thermal images of all radiators and assess the most effective flush procedure. We will then analyse the system water and mains (drinking) water for Ph, TDS and turbidity. The powerflush machine will be connected to your system and the flush will commence. We will flush the main system first before starting on individual raditaors. Thermal imaging can be used to check the progress and we may agitate the radiators if necessary. We allow approximately 15mins per radiator to remove sludge. Once as much sludge as possible is removed, we will re-analyse the system to ensure we are within 10% of the drinking water readings, take new thermal images of the radiators showing the improvement and add inhibitor to the system to protect it in the future. Finally we will email the report and thermal images to you. BOOK NOW