Emergency Call Outs and Repair Across London

Typical examples are commercial boiler breakdowns, loss of heating or hot water, HVAC or ventilation shutdowns, circulation or booster pump failures, pressurisation unit faults, plant room leaks, boiler flue faults and BMS failures that stop plant operating. Not every fault is an emergency: a single cool room or a noisy unit that still works can usually be scheduled.

Call 020 7998 9005 and describe the building, the equipment and what has happened. The team will discuss the fault, give interim safety advice and confirm what assistance is available. For non-urgent requests you can also use the online enquiry form.

Yes. 020 7998 9005 is a 24/7 contact line. Engineer availability and attendance outside normal hours depend on location, availability and access, and are confirmed on the call rather than guaranteed in advance.

Check the controller or BMS for fault codes, check that schedules and setpoints are calling for heat, and see whether other boilers are running. Do not open the appliance, bypass safety devices or repeatedly reset a locked-out boiler. If you smell gas or a CO alarm sounds, leave and call 0800 111 999 first. See commercial boiler repairs.

The site address and postcode, boiler make and model, how many boilers are affected, fault codes or lockout messages, the system pressure reading, which areas have lost heating or hot water, when it started and how the engineer can access the plant room.

Boiler lockouts, failed circulation pumps, low system pressure from leaks or pressurisation faults, stuck valves or actuators, BMS schedule or sensor faults and airlocks are the most common causes. If boilers are running but the building is cold, the fault is usually in circulation or controls. See commercial heating repairs.

Yes. A failed central air handling unit, chiller, main pump or controller can affect every area it serves, while faults in local units such as fan coils usually affect one room or zone. See commercial HVAC repairs.

Heating circuits going cold while boilers run or overheat, pump trip alarms, noise or vibration, water leaking from the pump seal, a hot or burning-smelling motor, and frequent duty and standby changeovers. See commercial pump repairs.

Make sure nobody is at risk, keep unauthorised people out, do not enter if there is gas, smoke, steam or water near electrics, record alarms and gauge readings, and call a commercial mechanical engineer. Only trained, authorised people should isolate plant. See plant room repairs.

Treat them as a safety issue. Stop using the affected boiler if safe to do so, never bypass flue fans or interlocks, and arrange inspection by a Gas Safe registered engineer. If a CO alarm sounds or anyone feels unwell, evacuate and call 999 and 0800 111 999. See commercial flue repairs.

When it relates to plant that has stopped or is unsafe, when the building has lost heating, ventilation or cooling, or when the BMS has lost communication and can no longer show alarms. Informational or nuisance alarms can usually wait. See BMS and controls faults.

Booster pump or controller failure, low cold water tank levels, closed or failed valves, leaks and incoming supply problems. If only upper floors are affected, the booster set is the likely cause. See water pressure failures.

The time and day of the callout, travel and site access, the time needed to diagnose and repair, parts and their availability, and whether specialist equipment or more than one engineer is needed. Charges are explained on the call before attendance is arranged; we do not publish fixed emergency prices.

Arrange plant room and roof access, a site contact, parking and any permits or inductions. Have the asbestos register, asset information and recent maintenance records ready, and keep photos of alarms and gauges. See emergency preparation.

Yes. Regular servicing of boilers, pumps, pressurisation units, flues and controls, and testing duty and standby changeovers, finds many faults before they cause breakdowns. No maintenance regime can prevent every failure, but it reduces the risk and the impact.