What is the average cost to replace all 3 slid out seals or should I attempt to do it myself. I have to correct my self its the wiper seal that's need replacing.
Depends on your RV. Mine is 43 ft. and I ordered the seals from Winnebago. Side seals are easy but you have to remove the top cover so I had someone do that. A few hundred $'s for the seals.