Doors Unlimited is your garage door expert in the Johnson City Tri-City, TN area. We have everything you could possibly need and our expertise is as close as your phone. Our exceptional sales, service, and installations are available to both residential and commercial customers. Come to us for all the best: Springs Rolling fire doors Door openers Commercial overhead doors Garage door replacementsSince 1978, we've been putting in new doors and replacing old ones for the whole community. Whether you need accessories or maintenance, Doors Unlimited is always a phone call away. Call Doors Unlimited today for more information!