Waterproofing cost in Pakistan varies widely because it depends on far more than just square footage — the substrate condition, the system selected, roof accessibility and the extent of any structural repair needed all move the final number significantly.
Surface area is the starting point, but a roof with extensive crack repair needed, multiple pipe penetrations, or difficult access for material and equipment will cost more per square foot than a straightforward, well-maintained flat roof of the same size.
Material system choice is the next biggest factor. Bituminous coatings are the most economical entry point, cementitious systems sit in the middle, and premium polyurethane or polyurea systems cost more upfront but typically deliver a longer service life and better performance on exposed, trafficked surfaces.
Beware of quotes given without a site visit. Waterproofing pricing genuinely depends on physical inspection of the surface condition, and any contractor willing to quote a firm price purely over the phone from a stated square footage is either guessing or planning to add costs later once work begins.
At Unicorn Chemical, every quotation follows a free, no-obligation site visit and is itemised by material, labour and area, so you know exactly what you’re paying for before any work starts — and can compare it fairly against other quotes.