October 30, 2025Curtain Wall InjectionEnfield, NSW

Curtain Wall Injection - Enfield Commercial Building

Precision curtain wall injection for commercial building

The Challenge

This multi-tenant Enfield commercial complex experienced persistent water ingress through its curtain wall facade system, affecting three ground-floor retail tenants and causing extensive interior damage over the previous 18 months. Investigation revealed failed sealant joints combined with micro-cracking in the concrete substrate had created multiple infiltration pathways allowing water penetration during heavy rainfall events. The building's continuous occupancy by retail businesses demanded a solution that maintained full tenant operations while achieving permanent waterproofing. Traditional curtain wall repair would require complete facade panel removal, costing $250,000+ and forcing three-month tenant relocations with associated business interruption claims exceeding $100,000. The building's modern architectural aesthetic meant any external remediation work needed to be invisible from street level to maintain commercial appeal and property value. With Sydney's wet season approaching, immediate action was required to prevent another cycle of water damage and additional tenant compensation claims. The property manager faced mounting pressure from tenants threatening lease termination if waterproofing issues weren't resolved quickly.

Our Solution

We deployed specialized curtain wall injection technology using hydrophilic polyurethane resin that expands upon contact with water, creating a permanent waterproof barrier within the concrete substrate and failed joint systems. Our technical team conducted comprehensive moisture mapping using thermal imaging to identify all active and potential infiltration points, then developed a systematic injection pattern targeting each vulnerability. The injection process used precision-drilled entry points positioned at 300mm intervals along affected joints, with resin injected under controlled pressure to ensure complete penetration and void filling. All injection points were finished flush with the facade surface and color-matched to maintain the building's aesthetic appearance. Work was scheduled during single-day windows to minimize scaffolding impact on street frontage and tenant access. The hydrophilic resin's expansion properties meant it actively sealed micro-cracks and voids that would be impossible to repair using traditional methods. Our team provided real-time progress updates to the property manager and tenants, maintaining full communication throughout the single-day installation. Comprehensive testing using controlled water spray confirmed 100% waterproofing effectiveness before project completion certification.

Results

The curtain wall injection achieved complete water ingress elimination, with zero leaks reported during multiple heavy rainfall events in the three months following completion. All retail tenants remained operational throughout the single-day remediation, avoiding business interruption and maintaining rental income continuity. The $85,000 injection solution delivered 66% cost savings compared to the $250,000+ facade panel removal alternative while completing in one day versus the three-month traditional timeline. Property value was protected by maintaining the building's street appeal with invisible repairs that preserved architectural integrity. The three affected tenants withdrew lease termination notices, securing $180,000+ in annual rental revenue. Tenant satisfaction surveys showed 100% approval of the remediation approach and minimal disruption experience. The permanent waterproofing solution included a 10-year warranty backed by independent engineering certification. Building insurance premiums reduced by 15% due to documented waterproofing upgrade and elimination of water damage claims history. The project established a new benchmark for curtain wall remediation in occupied commercial buildings.