About Waterproofing Solutions
Water leakage damages structures, ruins finished floors and coatings, and disrupts operations. The right waterproofing system depends on where water is entering, the substrate, and exposure to sun, foot traffic or water pressure.
BJN inspects the source of leakage and applies proven systems — PU and acrylic membranes, cementitious coatings, crystalline treatments and injection grouting — for terraces, roofs, basements, water tanks, wet areas and expansion joints.
Benefits
Leak diagnosis first
We find the cause before recommending a system.
Right system for exposure
UV-exposed roofs, buried basements and potable tanks need different products.
Protects your investment
Prevents damage to structure, flooring, machinery and stock.
Minimal disruption
Planned execution around your operations.
Systems we install
| System | Typical thickness | Best for |
|---|---|---|
| PU / acrylic liquid membrane | Coating | Exposed terraces and roofs |
| Cementitious coating | Coating | Wet areas, tanks, below tiles |
| Crystalline / injection grouting | Treatment | Basements, retaining walls, active leaks |
Technical details
| Areas | Terrace, roof, basement, water tank, podium, wet areas, joints |
|---|---|
| Systems | PU, acrylic, cementitious, crystalline, injection grouting |
| Inspection | Site inspection to identify the leakage source |
Values are typical. Final specification depends on site conditions and the selected product system.
What decides the cost?
- Area and type (terrace, basement, tank)
- Existing treatment that must be removed
- Severity of leakage and cracks
- Exposure — UV, foot traffic, water pressure
- Protective screed or tiles over the membrane
We give a fixed, itemised per sq ft quotation after a free site inspection.
Where it is used
Our installation process
- 01
Free site inspection
We visit, understand your process, traffic and chemicals, and check the existing floor.
- 02
Testing & recommendation
Moisture and soundness checks, then the right system and thickness — not the costliest one.
- 03
Clear quotation
Itemised per sq ft proposal with scope, timeline and warranty terms.
- 04
Surface preparation
Grinding / shot blasting, crack and joint repair, cleaning and priming.
- 05
Application
Installed by our trained team with controlled mixing and thickness checks.
- 06
Curing & handover
Protected curing, final inspection, maintenance guidance and handover.
