Services (JA)

Our services

International Surveyor Alliance (ISA) is a Hong Kong-based authority in building forensics and technical arbitration. Our team of 28 RICS/HKIS/CABE-certified experts employs judicial-grade inspection technologies to deliver:

Water Seepage Investigation and Follow up claiming issue

ASTM C1601-Compliant water infiltration rate quantificationHong Kong’s Only dual-certified (RICS+ CIOB+CABE) leak detection team Moisture Mapping with 0.5mm precision

Construction Quality Authentication & Evaluation

Non-Destructive Testing (Schmidt Hammer, Ground Penetrating Radar)
GB/T vs. HK Standards gap analysis for GBA projects
AI-Powered Defect Prediction (85% accuracy vs. 60% industry average)


drafting instruments on top of table

Flood & Fire Incident Investigation

PyroSim Fire Simulation with CFD modeling
72-Hour Cross-Border Report Turnaround (vs. 7-day industry standard)
Legally Admissible Evidence chain management

Building Structural Safety Risk Assessment

Crack Monitoring (0.02mm sensitivity, 24/7 real-time alerts)
Proprietary ISA-2023 Risk Index (adopted by HK Housing Authority)
Resonance & Load Testing for high-traffic structures

Enforcement/Removal of Court/Building Orders

Integrated BD/FEHD Compliance Solutions (sole provider in HK)
Risk-Prioritized Action Plans (30% faster approval vs. conventional methods)
Court-Admissible Progress Certificates



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Expert Witness & Legal Support

92% Court Success Rate ( 2015-2024)
BIM Evidence Preparation (Hong Kong’s court-admitted BIM model)
Multilingual Testimony (English/Cantonese/Mandarin)