GRIP Engineering provides practical, efficient and technically robust mechanical engineering design services across New Zealand. We specialise in HVAC and building services solutions for commercial, residential and mixed-use developments, with a strong focus on coordination, buildability, energy efficiency and value-driven outcomes.

Our approach combines modern engineering workflows, AI-assisted design tools and real-world construction experience to deliver smarter, faster and more cost-effective engineering solutions without unnecessary complexity or overhead.

We work collaboratively with architects, developers, contractors and project teams across all stages of design and construction — from early concept development through to detailed design, construction monitoring and commissioning support.

• Heating, ventilation and air conditioning (HVAC) design 
• Commercial HVAC systems 
• Residential HVAC systems 
• VRF and VRV system design 
• Packaged rooftop unit systems 
• Split and multi-split systems 
• Heat pump systems 
• Ventilation and fresh air systems 
• Toilet and general extract systems 
• Kitchen and specialty extract systems 
• Heat recovery and energy efficiency systems 

• Heating and cooling load calculations 
• H1 compliance support 
• Peak load assessments 
• Space-by-space load calculations 
• Occupancy and ventilation assessments 
• Equipment sizing and selection 
• Energy efficiency assessments 

Design calculations are completed in accordance with applicable New Zealand Building Code requirements, industry best practice and relevant standards including ASHRAE and CIBSE guidance where appropriate.

• Concept design 
• Developed design 
• Detailed design
• Building Consent 
• Producer Statements 1 & 4
• Design & Build contractor support 
• Mechanical specifications 
• Equipment schedules 
• Plant selections 
• Tender documentation 
• Construction documentation 
• As-built review support