45 years of exterior/interior commercial building envelope waterproofing. From sealant installation around windows, doors, precast control joints, concrete block control joints, liquid applied water repellents. Background in masonry, aluminum storefront and curtain walls, and all types of commercial sealant applications. Fireproofing both above walls and through wall. Both sprayed and gunned. Background in consulting a project that is either remedial or new with capabilities of creating a spec for division 07900 sealants, over-seeing projects from start to turnover. Anything related to commercial water infiltration can be handled by Proseal. Building occupied and need weekend work, no problem. It can be scheduled. With COVID, that has been popular.