
About this service
Water ingress is one of the most destructive forces in a building, leading to concrete cancer, ruined finishes, and mold. AAS Technical Services provides highly engineered waterproofing systems designed to withstand the thermal shock and occasional heavy downpours of the UAE. We do not believe in quick paint-on fixes. We assess the structure, prepare the substrate mechanically, and apply the correct system—whether that is a torch-applied bituminous membrane for a flat roof, a flexible liquid Polyurethane (PU) coating, or crystalline waterproofing for basements.
Our expertise covers the critical areas: roof waterproofing with proper thermal insulation (Combo Roof systems), basement retaining walls facing aggressive groundwater, internal wet areas (bathrooms, kitchens, balconies), and the internal lining of concrete water tanks. Every waterproofing application includes rigorous detailing around pipe penetrations, drains, and upstands, followed by a mandated flood test to guarantee absolute water tightness before any tiles or screed are laid.
What’s included
- Torch-applied bituminous membrane roofing systems
- Liquid Polyurethane (PU) and acrylic waterproofing
- Subterranean basement and retaining wall waterproofing
- Bathroom, kitchen, and balcony wet area membranes
- Potable water tank internal waterproofing and lining
- Crack injection and repair of failed existing membranes
When to Book Waterproofing Works
- Water dripping from the ceiling after heavy UAE rain
- Damp patches, bubbling paint, or mold on walls near bathrooms
- Water pooling on a flat roof due to poor drainage slopes
- A concrete water tank that is slowly losing water volume
- Basement walls showing efflorescence (white salt deposits)
- Planning a new bathroom renovation requiring a new membrane
Our process
01
Free Inspection
We visit the property, identify the fault or scope, and photograph anything that matters.
02
Diagnosis & Quote
You get a clear written quote covering labour, materials and expected duration.
03
Professional Service
Certified technicians complete the job with the right tools and tidy site practice.
04
Quality Check & Warranty
We test the result with you on site and confirm the workmanship warranty.
Recent waterproofing works reviews
“The team did an incredible job with our waterproofing works. Professional, on time, and left the place spotless.”
“Highly recommend AAS Technical Services for waterproofing works. They handled everything smoothly from start to finish without any hassle.”
Frequently Asked Questions
Yes. Depending on the system applied (e.g., a full torch-on membrane system), we provide extensive written warranties, often up to 10 years, provided the substrate was sound.


