We very rarely think of our loyal central heating ssystem, and that is because it always comes on when we make the switch. However like most things it will undoubtably fil at some point, just hope that is not in the middle of winter. There a clues that it is going to fail. A good indicator is lots of noises in the boilers pipework or in the boiler itself. London Plumbers only use qualified tradespeople. So, if your boiler or heating pipes suddenly start to make gurgling or banging noises, you should address the problem immediately. All boiler problems should be referred to a Gas safe Register Approved Heating Engineer. This is true but you can carry out some easy checks. If scale builds up in a heating system’s pipework it can cause ‘hot spots’, which create bubbles that make loud banging. This problem can be treated with a chemical descaler. This will involve:Shutting down the system.Adding the product to the feed and expansion tank.Leaving it to work for a few days.Draining and flushing through the system. Another tip is to try adjusting the temperature via the thermostat on the boiler. While this may stop the noise, it might also reduce the radiator temperatures. If the boiler thermostat is faulty it will need to be replaced. A trained Plumber is able to find falts on heating systems. Lack of water pressure can be a cause of noise and there can be a number of possible reasons why there isn’t enough water getting through to your boiler, so you should check the following: Water flow rateis particularly importantfor modern, wall-hung, lightweight gas boilers.Check that the mains water is on and check your feed and expansion tank (normally in the loft). Isolate the heating system, and find the tanks and double check that the float valve is free to operate. Check that the open safety-vent is correctly installed. If not, air can get into the system, causing noise in the boiler. If this is the case, you’ll should call a professional heating engineer.