Flag Waterproofing & Restoration

Construction oversights and seasonal storms leave their mark on Long Island City buildings; Flag Waterproofing & Restoration specializes in catching leaks before they evolve into worse problems. From roofs to basements, concrete repairs to façade repointing—addressing issues from the outside in—this general contractor keeps structural integrity in view. Found at 10-40 Borden Ave on the second floor, the shop sits amid the neighborhood’s brick-and-beam conversions, a stone’s throw from industrial edges softened by new glass towers.

Key services include roof coatings that resist ponding and membrane repairs, waterproof coatings for plaza decks, below-grade tanking, and full façade restoration with tuckpointing. Reach the team at (718) 784-8100 to schedule an on-site assessment before the next downpour. Need directions? Plug their map into your phone for step-by-step guidance to the 11101 shop—it handles the rest.