Torn mesh or fabric walls. Repair shops can stitch in a patch over a hole burned into a tent wall or replace an entire mesh panel. One of the most common repairs for tents is zipper repair or replacement. Lost grommets, ripped guy anchors, and unraveled seams are all easily repaired. See Gear Works, May 1996.
Repair shops can clean mildly-effected tents.
Repair shops can retape seams and reapply DWR finish on most fabrics. See Gear Works, September 1997 . Can't Fix Heavy mildew. Extensive mildewing can't be removed without damaging the tent itself. Brittle tent or rainfly.