As a general rule, your paint job will always only be as good as your prep job. That is why we powerwash any and all surfaces to be painted with a heavy duty degreaser that is environmentally friendly and paint friendly. If greasy residues from decaying leaves, asphalt roofing runoff, etc. arent properly removed from surfaces prior to painting it will certainly fail. We re-caulk everything with a high quiality elastometric caulking that will shrink and shrivel with the seasons without failing to ensure a water-tight, asthetically pleasing end product. We scrape, sand, prime, spot prime and in some cases even apply a product to stop the old paint from failing and peeling prior to applying finish coats. And, as always, we always use the high quality Sherwin-Williams products that we know will last.