When you work with Gemmen's Caulking & Waterproofing you can be sure you are working with the leader in excellence in Division 07 Thermal and Moisture Protection. As one of the fastest growing sealant contractors in the region, we have the resources to respond to your needs quickly and effectively.. Caulking New construction Repairs Commercial/Residential Above/Below grade Waterproofing Water repellents Floor Coatings Building Restoration Masonry Restoration Tuckpointing Brick Washing Brick Replacement Power Washing Sealants Sealers Brick Paver Sealer