Don't call them for a backed up sewer line. They will come out and make you sign a contract saying if they have to make a follow-up visit they will have to tear up your basement floor and your yard to replace the whole sewer line. Then they run a 3/4" auger down the floor drain which cuts a hole in the blockage and all the water goes down the pipe. Then the first time something solid hits that 3/4" hole, water backs up again. They come back out and tell you the pipe replacement will cost $20,000+. If you try to refuse, they threaten to sue. Most of the time it's just tree roots growing into the pipe. If that's what it is, you can avoid service calls by using a root killer in periodic intervals as stated on the product. Try to find one that is environmentally safe and is the proper one for your type of pipe. Never EVER call Gillece.