Hi Neighbors. We have a deck 15x15 and a small 3x6 porch off of our back door with about 5 steps down to the patio. 2 years ago we power washed and used Thompsons Waterseal but it needs it again. Perhaps someone out there could recommend a person/people who could do that for us this time. Any ideas? Thanks. Linda and Bill on Jackson St 412-404-2350 or email