Trades & finishing
Roof waterproofing estimate
Estimate the cost of waterproofing or heatproofing your roof in Lahore by method and area.
What affects the price
- Method and number of layers
- Roof condition and existing leaks
- Slope and drainage
- Warranty offered
Good to know
- Thin category: rates come mostly from waterproofing contractors' own guides; mitti + tile roofing still needs contractor quotes.
- Coating rate is material only; labour, cleaning, crack filling and primer are extra.
- Old or cracked roofs need repairs before coating, which can raise cost a lot.
- Lahore contractors usually include cleaning, crack repair, application and a water test in PU system rates, with 8-10 year warranties.
- Spray foam rates vary widely between suppliers; confirm thickness and density.
How we calculate
We researched current rates from several Pakistani suppliers, contractors, price lists and market reports in October 2026 and use the low and high end of what we found. Your inputs are multiplied by those rates to give a range, not a single figure. Labour, transport, taxes and your exact specification can move the final price, so treat the result as a budget guide and confirm with written quotes.
| Item | Range | Unit | Notes |
|---|---|---|---|
| Bitumen membrane per sqft | Rs 120 – 350 | PKR per sq ft | Pakistan: membrane sheet 120-260 per sq ft by type; 3 mm membrane 150-250 material + 50-100 install = 200-350; 2025 article 180-250. 4-5 mm membranes run 300-60 |
| Chemical coating per sqft | Rs 25 – 150 | PKR per sq ft | Material only 25-38. Applied: Lahore PU coating only 60-80, PU + polyester fabric 80-100, + fiberglass 100-120; chemical heat proofing 50-120; acrylic 80-150, c |
| Heatproof foam per sqft | Rs 200 – 580 | PKR per sq ft (installed) | PU foam spray installed: 200-300 average; Lahore spray foam 420-580. Material alone 45-120. Insulation sheets/advanced options 150-300. |
| Combo waterproof heatproof per sqft | Rs 85 – 250 | PKR per sq ft | Partly derived: PU waterproof coating 60-80 + heat-reflective coating 25-80 = 85-160. One 2026 guide puts waterproofing at 100-250 and says heat proofing is sim |
Houseplot market research, October 2026. Ranges across several Pakistani suppliers, contractors and published price reports; actual quotes vary.
Estimate only. Prices change with market rates, quality and site conditions. Always get written quotes before you pay. Request free quotes from verified waterproofing contractors.