The line between a dry building and a litigated one — 0.5-1 % of project cost prevents 100 % of water-damage claims.
waterproofing prices in Siliguri, West Bengal, sourced from dealer networks and leading online marketplaces. Ranges reflect the spread between authorised-dealer bulk rates and retail single-unit rates. Prices are close to the 50-city national average — roughly in line with pan-India benchmarks.
| Item | Unit | Price in Siliguri |
|---|---|---|
| Waterproofing Chemical (Dr Fixit/SikaTop) | per litre | ₹176 ₹124–227 (dealer-to-retail) |
| APP Membrane (3mm) | per sqm | ₹123 ₹92–154 (dealer-to-retail) |
| Dr Fixit LW+ IntegralDr FixitIntegral admixture· inferred from brand premium | per kg | ₹62 ₹43–80 (dealer-to-retail) |
| Dr Fixit PidisealDr FixitRoof coating· inferred from brand premium | per litre | ₹211 ₹149–272 (dealer-to-retail) |
| Dr Fixit RaincoatDr FixitExterior coating· inferred from brand premium | per litre | ₹263 ₹186–340 (dealer-to-retail) |
| Fosroc Nitoproof 120FosrocPolymeric· inferred from brand premium | per litre | ₹245 ₹173–317 (dealer-to-retail) |
| Fosroc Brushbond RFHFosrocCementitious· inferred from brand premium | per kg | ₹176 ₹124–227 (dealer-to-retail) |
| Sika Top Seal 107SikaCrystalline· inferred from brand premium | per kg | ₹316 ₹223–408 (dealer-to-retail) |
| PU Liquid Membrane1-component PU· inferred from brand premium | per kg | ₹386 ₹273–499 (dealer-to-retail) |
| Bituminous CoatingHot-applied· inferred from brand premium | per kg | ₹106 ₹75–137 (dealer-to-retail) |
Supply. Siliguri is the North-East gateway — cement comes from Meghalaya/Assam and Chhattisgarh plants, TMT from eastern SAIL-route mills, and aggregate from the Teesta/Mahananda Himalayan river beds and foothill quarries. For waterproofing specifically, this places Siliguri broadly in line with the national cost band — the page's table reflects close to the 50-city national average.
What moves the local price. the 'chicken's neck' single-corridor logistics position makes Siliguri a strategic stockpile point but raises freight on materials railed in from the mainland; river-bed aggregate is locally available but mining is tightly regulated and flood-disrupted.
Buyer takeaway. foothill river-bed aggregate keeps coarse material locally available, but cement and steel carry a North-East-corridor freight premium — Siliguri's role as a regional staging hub means bulk buyers can sometimes secure better rake-pooled rates here than further east. Cross-check the waterproofing ranges in the table above against a live local quote before raising a purchase order — the spread between bulk-dealer and retail rates in Siliguri, West Bengal is wider than the table's midpoint suggests.
Waterproofing materials in India range from integral admixtures (IS 2645), liquid-applied membranes, bituminous coatings (IS 1322), cementitious crystalline systems, and bituminous/APP membrane sheets (IS 3384). Major categories: below-ground (foundation raft, retaining walls, basement), wet areas (bathrooms, kitchens, balconies), terraces/roofs, water tanks, and podium decks. The industry is dominated by Dr Fixit (Pidilite), Fosroc, Sika, BASF MasterSeal, and Mapei. Cost-conscious projects still use bituminous painting and polyethylene sheet; professional waterproofing specs out crystalline + polymer-modified cementitious systems per membrane or applied build-up.
Waterproofing prices have risen 8-10 % YoY since 2022 as crude-oil-derived inputs (bitumen, polymer) inflated. 2026 has seen the polyurethane (PU) liquid membrane segment grow 20-25 % as it displaces traditional APP sheets on terraces — better performance, seamless, but ~40 % more expensive. Crystalline admixtures have become mandatory in water tanks + basements under IS 3370 Part 2 crack-width limits.
Week-by-week waterproofing price charts for Siliguri will appear here once our weekly price tracker accumulates 4+ weeks of snapshots. Subscribe to the InfraLens WhatsApp channel to be notified.
Compare waterproofing prices in Siliguri with other Indian metros. Prices shown are for Waterproofing Chemical (Dr Fixit/SikaTop) (per litre) — a representative benchmark for the category. Click any city for the full 10-item price list.
Waterproofing quality and manufacturing in India is governed by the following Indian Standards. Click any code for the full specification with extracted clauses, tables, and reference values.
IS 2645:2003: Integral cement waterproofing compounds. IS 3384:1986: Bituminous paints for application over black bituminous priming.