I hired GWP Services Inc to replaster my pool. The cost started at 7,700 and ended at 16,000. Thier workmanship was horrible. It has been five weeks and they are fixing the tile for the third time. The tiles are uneven and chipped. Although Houzz gives them a positive rating, the BBB gives them an F. I may just have to fill the pool in with dirt because they have taken my money and refused to perform on their contract!