Waitara Multi-Service Remediation
Multi-service remediation combining crack injection and steel reinforcing
The Challenge
This Waitara residential property required comprehensive structural remediation across two distinct but related issues discovered during a pre-purchase building inspection. Initial assessment in October 2024 revealed extensive slab-on-ground cracking throughout the ground floor, indicating soil movement and inadequate reinforcement during original construction. Subsequent detailed engineering investigation uncovered additional concerns with undersized structural steel supports in the basement level, creating a compounding structural integrity risk. The property purchase was conditional upon successful remediation, placing strict timeline pressure on the new homeowners who had already committed to settlement within 8 weeks. The dual-service requirement meant coordinating two specialized remediation techniques - slab crack injection for the ground floor and supplementary steel reinforcing for the basement - within a single project timeline while maintaining cost efficiency. Traditional approaches would treat each issue as separate projects, doubling mobilization costs and extending the timeline to 12+ weeks. The vacant property status allowed unrestricted access, but also meant no rental income during the extended remediation period, creating financial pressure to minimize project duration while maintaining quality standards across both service types.
Our Solution
We developed an integrated remediation strategy coordinating both service types within a single 5-week phased timeline. Phase one (weeks 1-3) addressed the slab-on-ground crack injection, systematically injecting high-strength epoxy resin into all identified cracks using a grid pattern that ensured complete penetration and permanent bonding. The epoxy injection not only sealed existing cracks but also created a structural bond stronger than the original concrete, effectively reinforcing the entire slab system. Phase two (weeks 4-5) involved designing and installing custom structural steel reinforcement in the basement level, with steel members specifically engineered to integrate with existing structural elements without requiring extensive demolition. All steel work was executed with certified welding and complete corrosion protection coating to ensure long-term durability in the basement environment. Our project management approach coordinated both specialized teams seamlessly, with basement steel installation commencing immediately upon completion of ground floor epoxy injection, eliminating any scheduling gaps. This integrated approach reduced total project cost by 30% compared to treating each service separately, while maintaining the highest quality standards for both remediation types. Comprehensive engineering certification covered both services under a single documentation package for the homeowners' settlement requirements.
Results
The multi-service remediation successfully addressed both structural concerns within the 5-week timeline, enabling the property settlement to proceed on schedule. All slab cracks were permanently sealed, with structural testing confirming 100% bonding effectiveness and load capacity restoration exceeding original design specifications. The supplementary steel reinforcing increased basement structural capacity by 40%, providing significant margin for any future loading requirements. The integrated project approach delivered $45,000 in cost savings (30% reduction) compared to separate project quotes, while completing 7 weeks faster than the traditional sequential timeline. The new homeowners avoided rental property costs estimated at $3,500 per week that would have been incurred during extended remediation. Settlement proceeded on schedule with complete structural engineering certification covering both remediation services. Building inspection clearance was issued immediately upon completion, removing the final conditional requirement for property purchase. The comprehensive remediation substantially increased the property's market value, with the updated structural engineer's certificate adding approximately $80,000 to the property's assessed value due to documented superior structural integrity.
2
Services Combined
5wk
Integrated Timeline
30%
Cost Savings
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