HomeAdvisor doesn’t review or confirm the knowledge representations set forth in these profiles as they’re self-reported by the Service Professional. I selected to work in this trade as a end result of Feels good to hear to a home owner glad with my work.. Covered Building Service Contract means a contract or subcontract to supply Building Services to the City of Cambridge or any of its departments or subdivisions. Accessory Building means a detached building or structure, not used for human habitation that’s subordinate to the first use of the same property.