Independent Commissioning Agent (ICA)
GRIP Engineering provides independent commissioning and Green Star verification services across New Zealand, supporting project teams through design, construction, commissioning and project completion phases. We specialise in practical, collaborative and technically robust commissioning processes that improve building performance, system reliability and operational outcomes.
Our approach focuses on clear communication, early coordination and proactive issue identification to help ensure building services systems are installed, commissioned and operating in accordance with project requirements, design intent and Green Star objectives.
We work closely with clients, contractors, consultants and commissioning teams throughout all stages of project delivery — from design review and commissioning planning through to site inspections, witness testing, seasonal commissioning and final verification support.
Our Independent Commissioning Agent (ICA) Services
- NZGBC Green Star ICA services
- Green Star commissioning management
- Independent commissioning reviews
- Commissioning process verification
- Design review and commissioning input
- Construction phase commissioning oversight
- Functional performance witnessing
- Seasonal commissioning support
- Green Star documentation coordination
- As-built and close-out verification
Building Services Commissioning Support
- Green Star Nominated Systems
- Mechanical systems commissioning
- HVAC commissioning reviews
- Domestic water system commissioning
- Controls and BMS coordination
- Air and water balancing witnessing
- Plant and equipment verification
- Defect identification and close-out tracking
- Contractor commissioning coordination
- Systems performance reviews
- Operational readiness assessments
ICA Documentation & Reporting
- Commissioning plans
- ICA review reports
- Site inspection reports
- Defects and observations registers
- Witness testing records
- Green Star submission support
- Final commissioning verification reports
- Construction stage compliance reviews
- Practical completion reviews
- Final completion verification
Our ICA services are delivered in accordance with applicable NZGBC Green Star requirements, project specifications and industry best practice, with a strong emphasis on practical coordination, accountability and long-term building performance.
Steering Better Outcomes
GRIP Engineering provides independent commissioning agent services that verify your systems perform as designed — before handover. With no ties to the installing contractor, our commissioning support gives building owners and developers confidence that what was specified is what was built.