Duncan & Sons' Building Maintenance, Inc.

Cleaning, Janitorial and Building Maintenance is the bedrock of Duncan & Sons’. We are family owned & operated with a 32 year proven track record of serving East TN and greater Knoxville areas. “Relationships are as important to us as the work itself”, says owner and founder Gary Duncan “both with our Clients and our Staff”. This motto has driven Duncan & Sons’ to be a leading competitor in the Knoxville market. Word is out, “for commercial cleaning, janitorial and maintenance, call Duncan & Sons.’”