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Ensure clean, leak-free water storage with our food-safe waterproofing solutions for underground and overhead tanks.
Water tank waterproofing protects your water supply from contamination and prevents costly leakage. Whether it's an underground concrete reservoir or an overhead rooftop tank, deteriorating waterproofing leads to water loss, structural damage, and potential health risks.
Ahsaan Traders provides specialized water tank waterproofing and lining services using food-grade, non-toxic coatings that are safe for potable water storage. Our solutions also extend to swimming pools, ponds, and industrial water reservoirs.
With over 150 tank waterproofing projects completed across Karachi, we understand the unique challenges of each tank type and apply the most effective treatment methods to ensure decades of reliable performance.

5yr
Warranty
150+
Tanks Waterproofed
20yr
Extended Tank Life
100%
Food-Safe Materials
5yr
Leak-Free Warranty
A leaking or contaminated water tank wastes thousands in water bills and poses serious health risks to your family.
If your tank loses water faster than usage, it indicates cracks or joint failures allowing water to escape.
Wet patches or salt deposits on the exterior walls of the tank signal active leakage through the concrete.
Deteriorated interior coating allows concrete minerals and external contaminants to enter the water supply.
Thermal stress and ground movement create cracks in tank walls, especially in underground structures.
Every step follows food-safety protocols to ensure your stored water remains clean, safe, and leak-free.
The tank is drained, cleaned, and inspected for cracks, honeycombs, and coating failures.
All cracks and construction joints are treated with waterproof repair mortar and sealant.
The interior surface is prepared by grinding or sandblasting to ensure proper coating adhesion.
A specialized primer compatible with the waterproofing system is applied.
Food-grade cementitious or epoxy waterproofing coating is applied in 2-3 coats.
The coating is cured for the recommended period before the tank is refilled and tested.
Experience, expertise, and a commitment to delivering results that last not just promises.
We exclusively use FDA-approved, potable water-safe coatings. No harmful chemicals leach into your drinking water guaranteed.
Underground reservoirs, overhead tanks, swimming pools, and industrial water storage we've handled every type and size.
Our negative-side approach treats tanks from inside, eliminating the need for costly external excavation around underground tanks.
We also waterproof swimming pools with chlorine-resistant, UV-stable coatings designed for long-term pool environments.
Real tank waterproofing work from underground reservoirs and overhead tanks to swimming pools.

Water reservoir tank lining treatment

Underground water tank leakage repair

Overhead tank waterproofing coating

Swimming pool waterproofing in Karachi
We provide water tank waterproofing services throughout Karachi, including residential areas in DHA, Clifton, Gulshan, and commercial/industrial zones in Korangi, Landhi, SITE, and Port Qasim.
Get answers about tank coatings, safety certifications, treatment duration, and warranty coverage.
Yes, we exclusively use food-grade, non-toxic coatings that are approved for potable water storage. These coatings do not leach chemicals into your water supply.
The process takes 3-5 days for standard residential tanks. An additional 3-5 days of curing is recommended before refilling with water.
Yes, we use interior (negative-side) waterproofing methods that treat the tank from inside, eliminating the need for external excavation.
Yes, swimming pool waterproofing is one of our specialties. We use chlorine-resistant and UV-stable coatings designed for pool environments.
We provide a 5-year warranty on all water tank waterproofing work, covering both materials and workmanship.
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Learn MoreSchedule a tank inspection we'll check for cracks, contamination risks, and coating failures, then provide a detailed treatment plan.