Precision Expansion Joint Sealing That Lasts
Leak Protection. Structural Flexibility. Guaranteed Performance.
Expansion joints are vital to your structure’s integrity — but when they fail, the damage can be costly. At United Trade Links, we specialise in professional expansion joint sealing and waterproofing that protects against water ingress, accommodates movement, and extends the life of your asset.
Whether it’s for a car park, rooftop, podium, walkway, or commercial slab, our system is designed for long-term performance — without shortcuts.
Our Proven Expansion Joint Waterproofing Process
- Comprehensive Joint Inspection: We begin by exposing all joints and membranes to assess damage, wear, or failure points. Every detail is documented to ensure nothing gets missed.
- Industrial Surface Grinding & Cleaning: We prepare all concrete using heavy-duty grinders to remove old membranes, grease, oil, and loose debris, revealing a clean substrate ready for restoration.
- Abrasive Blasting Preparation: Our abrasive blasting process creates the ideal surface profile for membrane adhesion — ensuring long-term performance and bond strength.
- Penetration Sealing: All visible construction penetrations in the joint area are sealed and repaired to block moisture entry at the source.
- Surface Repairs: Any cracks, honeycombing, or voids identified during blasting are repaired to restore the structural base before priming.
- Concrete Preparation Compliance: All surface preparation is carried out to meet strict manufacturer specifications — no shortcuts, just full compliance and durability.
- Primer Application: We apply two coats of high-quality poly primer membrane to ensure maximum adhesion between the substrate and waterproofing layers.
- Injection Sealing (As Required): Where needed, we use Total Seal injection systems to fill voids within joints — sealing from within for extra reinforcement.
- Rubber Expansion Joint Installation: We install flexible rubber inserts tailored to the correct thickness and width — ensuring durability and joint movement flexibility.
- Waterproof Membrane Application: Two coats of a heavy-duty waterproofing membrane are applied to protect the entire joint system from water ingress.
- Top Rubber Flashing Installation: A top rubber flashing layer is installed to safeguard the membrane and provide added protection against weather and wear.
- Final Waterproofing Coat: To lock everything in, a final two-coat membrane system is applied across the entire area, delivering watertight confidence.
Why Choose Expansion Joint Restoration Over Replacement?
- Save on costly structural repairs
- No major demolition or reconstruction
- Engineered to handle building movement
- Stops leaks before they cause damage
- Full compliance with Australian Standards
- Suitable for rooftops, podiums, car parks, and more
Built for Property Professionals
Whether you’re managing strata, commercial buildings, or civil infrastructure, our expansion joint system gives you peace of mind — with minimal disruption to operations.
Our Service Areas
United Trade Links proudly provides expert building remedial and waterproofing services across New South Wales and the ACT, including:
- Sydney: Expansion joint repair, balcony, roof, and bathroom waterproofing.
- Wollongong: Structural crack repairs, terraces, and waterproofing solutions.
- Newcastle: Basement waterproofing, roof repairs, and joint sealing.
- Central Coast: Balconies, flat roofs, and remedial waterproofing.
- Blue Mountains: Expansion joint repair, crack sealing, and waterproofing.
- Canberra: Licensed waterproofing and building remedial experts.
Our licensed and experienced team delivers reliable, long-lasting solutions to keep homes and commercial properties safe from water damage and structural issues.