We had them put in a new furnace and air conditioning in our mobile home (a lot of companies won't do mobile homes.) We've been satisfied with the new system. We had our old gas pipes under the mobile replaced because we had leaks. They did a good job here, but I gave four stars because we had a gas leak the next morning after the job was done. Lee's came right out, within 30 minutes, and fixed it. Two guys came when they put the pipes in and the assistant was the one that didn't tighten the pipe enough under kitchen stove. Also, the assistant needs better people skills! The main guy was great, very respectful. He was very disappointed in the assistant; you could see it on his face. Anyway, Lee's do a good job and don't try and jerk you around. They are up front with their prices. I will hire them again, if need be.