Empty and unoccupied houses seem to deteriorate more quickly than occupied ones. Regularly servicing the boiler helps to ensure that there are no fractured pipes. If a property is left empty for an extended period the insurance company will probably insist that everything is drained down.  

Provals can instruct plumbers, Oil boiler specialists and Gas Safety engineers to check and service heating and hot water systems either regularly or one-off if needed.

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Gas boilers and appliances may also require annual safety checks if a property is to be rented out.