Mumbai & Gujarat's most trusted waterproofing partner — built on results.
We integrate with your construction workflow from Day 1 — not just a vendor, but a committed waterproofing partner accountable from excavation to handover.
Every stage tracked against a detailed checklist. You receive daily updates — complete transparency, no surprises.
We commit to timelines and keep them. Skilled, dedicated labour means your construction schedule stays intact.
Our workforce consists of trained waterproofing specialists — the right skill for every surface and application.
We coordinate with your site team at every phase and own the waterproofing scope end-to-end.
From deep foundations to rooftops — we cover every surface that demands reliable, long-lasting waterproofing.
Flexible polyurethane foam or resin injected into active water-leaking cracks. It expands on contact with water, sealing even dynamic cracks under live water pressure — ideal for basements and tunnels.
A cement-based rigid grout pumped into voids, honeycombs, and non-moving cracks. It bonds with the concrete substrate and restores load-bearing capacity — commonly used in foundations and retaining walls.
Two-component epoxy resin injected into dry, structural cracks. Cures to an extremely high compressive strength, chemically bonding crack faces together — best for heavily loaded slabs and industrial floors.
Precision hand-syringe injection used for hairline and micro-cracks in tiles, joints, and delicate surfaces. Allows controlled, low-pressure filling where mechanical pumping would cause damage.
Every project follows our proven 7-step process — from thorough surface preparation to final protection. No shortcuts, no compromises.
Every project executed with a structured, transparent system — giving builders and clients complete confidence at every stage.
We visit the site, study drawings and assess waterproofing requirements for each area before work begins.
A tailored plan — right materials, right techniques for each specific surface and condition.
Daily updates shared with you — every task tracked with full visibility.
Flood and pressure testing before handover to guarantee zero leakage under real conditions.
Formal warranty documentation provided on completion — your long-term protection, in writing.
Real results from real projects — see the transformation A One Star delivers on every site.
Worn, leaking terrace transformed with full membrane waterproofing system
Waterlogged podium area sealed and coated with durable waterproofing membrane
Complete floor and wall membrane applied for permanent leak-free protection
Traditional brickbat coba method delivering strong foundation and leak-free protection
Complete epoxy coating of water tank — from leaking, stained concrete to a sealed, clean finish.
Full-coat bituminous membrane applied to diaphragm wall — zero water ingress, maximum protection.
Retaining wall treated with premium waterproof membrane coating — from damp and cracked to fully protected.
Professional injection grouting solution for leakage and structural cracks.
From pharmaceutical giants to award-winning real estate developers — India's most trusted names rely on A One Star for their waterproofing.
We back every project with one of the strongest guarantees in the industry. If it leaks, we return and fix it — no questions, no excuses.
Every completed project comes with official 12-year guarantee & warranty documentation.
We use only proven, high-performance waterproofing products — traditional and advanced techniques combined.
Transparent daily updates so you always know exactly what's done and what's next.
Our commitment extends beyond handover — available for inspections throughout the warranty period.
Get a free site assessment from our experts. We'll understand your project, recommend the right solution, and provide a transparent quote — no obligation.
A complete system that protects the strength, safety, and life of your structure.
Waterproofing is not just applying a protective layer — it is a complete system designed to protect the strength, safety, and life of a structure.
Every building constantly faces water exposure through rain, moisture, humidity, underground water pressure, and temperature changes. Without proper waterproofing, water slowly enters concrete through tiny pores and cracks, damaging the structure from inside.
⚠ A small leakage visible today can become a major structural problem tomorrow.
Modern structures are built faster and exposed to more challenging environmental conditions than before. Waterproofing has become an essential part of construction — not an optional treatment.
Waterproofing helps protect:
A properly waterproofed structure remains stronger, safer, and more durable for years.
Many old structures were built using different construction methods and high-quality traditional materials. Earlier construction often included:
Climate changes and environmental conditions have increased stress on buildings. Modern structures now face:
Due to global warming, buildings experience stronger heat, sudden rains, and continuous moisture — which increases chances of cracks, seepage, and leakage. Modern fast-construction techniques make additional protection systems like waterproofing even more critical.
A building is one of the biggest investments in life. Waterproofing protects that investment by preventing damage before it starts. Repairing leakage after damage is always more expensive than preventing it early.
"Waterproofing Today Means A Stronger Structure Tomorrow."