I had Duct Doctors in The Colony, Texas come to my house in January, 2010. They promised a substantial savings in my electric bill by adding insulation and also recommended duct cleaning. I had both done. Their incompetence has caused About $20, 000.00 in damage to my house and heating/a/c systems. They blew insulation into my return air system that feed the air handlers on my heat pumps. They left some ducts disconnected which caused additional insulation to get into the system as well. I called them several times to come remedy the problem... read full review »