When your boiler or heating pipes start making loud and unusual noises, you should sort the problem out straight away. If you don’t, you might find yourself paying for repairs or perhaps a new boiler. Don’t think that fixing a noisy boiler is as simple as bleeding a radiator. Most boiler problems require the skills of a Gas safe Register Approved Heating Engineer but there are some checks that you can do that could help you give an engineer more information about the nature of the problem. South Bank Plumbers carry out a first class service for such eventualities. The build up of scale can cause ‘hot spots’, which produce bubbles that makes loud bangs. The problem can be treated with a chemical agent. This means you will need to shut down the system, add the product to the and let it to work for a few days. Finally, drain and flush the system through.feed and expansion tankBut First:Try lowering the boiler thermostat. Now, while this may stop the noise, it might also lower the radiator temperatures. If the boiler thermostat is unserviceable it will need to be replaced. A South Bank Plumber is trained to work on heating systems. There are a number of possible reasons why there isn’t enough water getting through to your boiler, so you should check the following:Rate of Flow:With modern, wall-hung, lightweight gas boilers, water flow rate is particularly important. Check that the mains water is on and check your feed and expansion tank (they’re usually found in the loft).Float Valve:First, shut down your central heating boiler.Locate the tanks and double check that the isn’t stuck. If it is, you’ll have to move its metal arm to release it.float valveCheck that the open is correctly installed. If not, air can get into the system, causing noise in the boiler. If this is the case, you’ll need to enlist the help of a professional heating engineer.safety-vent pipe