Boiler Engineer
Cambridge& Surrounding Area

Yes — most Gas Safe registered boiler engineers also handle radiator repairs, replacements, and balancing. Common radiator issues include cold spots (usually trapped air), leaking valves, and radiators that do not heat up due to sludge buildup. Radiator repairs typically cost £60 to £150, while fitting a new radiator including the unit costs £150 to £350.

If you smell gas, do not touch any electrical switches, do not light any flames, and open all windows and doors immediately. Turn off the gas supply at the meter using the emergency control valve — turn the handle so it sits across the pipe. Leave the property and call the National Gas Emergency Service on 0800 111 999 from outside. Do not re-enter until given the all-clear.

Warning signs include a yellow or orange boiler flame instead of blue, dark staining around the boiler, increased condensation on windows, and a pilot light that frequently goes out. Symptoms of carbon monoxide exposure include headaches, dizziness, nausea and confusion. If you suspect a carbon monoxide leak, open windows, leave the property immediately and call the Gas Emergency Service on 0800 111 999. Fit a CO alarm near your boiler — they cost under £20 and save lives.

A combi boiler heats water on demand and is ideal for smaller homes with one bathroom — no tank or cylinder needed. A system boiler uses a hot water cylinder and suits homes with two or more bathrooms where demand is higher. Conventional (regular) boilers have both a cylinder and header tanks and are found in older properties. Your engineer will recommend the right type based on your home's size and hot water demand.

A straightforward like-for-like combi boiler replacement typically takes one day — around 6 to 8 hours. If the boiler is being relocated, the flue route changed, or you are converting from a conventional system, the job can take 2 to 3 days. Your engineer should give you a clear timeline before starting and ensure you have hot water by the end of the final day.

Check the obvious things first: is the thermostat set correctly, is the timer on, and has the boiler pressure dropped below 1 bar? If the pressure is low, you can repressurise it yourself using the filling loop — your boiler manual will show you how. If none of these fix the problem, call a Gas Safe registered boiler engineer in Cambridge immediately and use electric heaters as a temporary measure.