Wallet missing after they worked on my furnance. I think they are ID thieves. Found other information on [redacted] about this group after they visited my home. I was having my furnance tune up done for the winter. Frank Montfort "accidentally" knocked vent piping apart and tried to tape it together with electric tape. My heating system was good before he touched it. I believe he intentionally tried to sabotage my heating system so he could hike the bill up higher. I cannot recommend the B & M Heating, Cooling, Plumbing company. I think they are scamming people by listing their business in Detroit and Lapeer, MI. The Detroit address is a vacant building the city council wants to demolish. Stay far away from these crooks.