Building Materials, Construction Chemicals, Commercial Masonry Repair Including Concrete Waterproofing, Brick Replacement & Restoration in Boston, Quincy, Lowell, Worcester & Plymouth Ma; Waterproofing services. Capabilities include caulking and sealants, flashings and copings, breathable waterproof coatings, clear penetrating sealers, waterproof sheet membranes, vehicular and pedestrian protective coatings and roofing repairs and replacements ...