These pictures were taken before the walls were complete to show the cleaning potential of pre-existing stains. We use hot and cold pressure washes depending upon the severity of the job. Since wood was once living, it needs to breath, expand and contract. So, if you seal wood with a nonflexible product, the wood will warp and crack with the dry and arid climate we live in. The vegetable derivatives most products are made of become a food source for mildew, which causes discoloration and degredation of the wood. The product we use doesn’t consist of a vegetable base and by contrast, allows for the expansion and contraction of wood. Please contact us for a free consultation and estimate.