Out of hours service: If you are having trouble with your boiler or heating system please call us on 0800 081 1972 and press Option 1 to speak to our on-call Heating Engineer. Or please leave a message with your contact details by pressing Option 2. You will be diverted to our out of hours on call service. If you smell gas please immediately call 0800 111 999. Please note we do not operate a 24-hour service. All calls are recorded for monitoring and training purposes.