Roof waterproofing Contractors in Bangalore - Complete a waterproofing service performed by a professional. Waterproofing for Rooftop ceilings and walls. The rooftop is exposed to the elements and can cause leaks if not properly protected. Make sure your walls and roof are waterproofed. Find the best waterproofing solutions for your roof at the lowest price in Bangalore. Roof Protection Process: First you must clean the roof with a wire brush. Then wet the surface with water. Then put on a waterproof coat. Find plenty of waterproofing products to prevent roof leaks.