Curtain Wall Injection
Waterproofing below ground
Overview
Curtain injection grouting to waterproof below-grade structures. Create a waterproof barrier behind walls without excavation.
What We Provide
- Gel injection
- Soil stabilization
- Basement waterproofing
- Leak stopping
Benefits
→ No excavation needed
→ Total waterproofing
→ Quick application
→ Permanent solution
Common Applications
Curtain injection grouting is the preferred waterproofing method for below-ground structures including basement walls with active leaks, underground carparks with groundwater infiltration, and tunnels experiencing water ingress across Sydney.
Why Choose TRD
TRD Remedial uses acrylamide and polyurethane gel systems specifically formulated for soil stabilization and curtain grouting, providing permanent waterproof barriers. We provide 5-year waterproofing warranties on curtain injection work.
Service Area
Specialized curtain injection services across Sydney metro: CBD basement complexes, Eastern Suburbs heritage buildings, North Shore residential basements, Inner West industrial facilities.
100%
Waterproof
3yr
Guarantee
Deep
Penetration
Our Process
Drill
Drill grid of injection holes
Inject
Inject gel behind the wall
Barrier
Gel forms waterproof curtain
Seal
Plug holes and finish
Final StepFrequently Asked Questions
Most curtain injection projects complete in 2-5 days depending on wall area and water pressure conditions.
Yes, when performed correctly with quality gel systems, curtain injection provides permanent waterproofing with a 5-year guarantee.
Curtain injection avoids expensive excavation, protects existing landscaping and structures, and costs 40-60% less than full excavation and membrane installation.
Curtain wall injection typically costs $200-500 per linear meter depending on wall height and groundwater pressure.
What Our Clients Say
Our heritage terrace basement had been flooding every winter for 20 years. TRD's curtain injection fixed it without excavation. Three years later, the basement is still completely dry.
"We had an active groundwater infiltration problem in our underground carpark. TRD's curtain injection team sealed 150 linear meters of basement wall. The water stopped completely.
"Ready to Get Started?
Contact us for a free consultation and site assessment.
