P&M Heating Services of Concord NH aspires to the communication and service quality of a slug and often achieves it. If you buy the good old boy act you'll wind up with a massive case of passive aggressive service. They do the minimum, inform you of nothing, walk off chuckling heartily. This was a boiler and gas line installation. They did not answer our inquiries about a service warrantee. They came at unexpected hours, their convenience. They used the old float and it didn't work, neglected to put a code required bonding in the system, and didn't give us a choice of automatic boiler feed. In fact, the code in our town is ambiguous per the code enforcement officer. P & M left us without a shut off valve for the gas line which prevented the installer from installing the stove. Ernie, the owner of P&M, seems to have found his home base - "It ain't in the contract".