We Are Cook Costello
Client-focused, Collaborative, Cost-effective
At Cook Costello, we integrate civil, structural, and geotechnical engineering to deliver land development, building, and infrastructure projects across New Zealand. With in-house land surveying, geophysics, and project management, we can tackle projects of any scale. Our end-to-end approach means faster decisions, fewer delays, and better outcomes, from concept to construction.
Clients choose us for clear communication, practical solutions, and cost-effective delivery that reduces risk without unnecessary overheads or complexity. With offices in Whangārei, Auckland, Wellington, and Christchurch, our local engineers are ready to deliver expertise and support wherever your project takes you.
Our Services
Strong foundations begin with understanding the ground and the hazards around it.
50 Years of Excellence
For nearly 50 years, Cook Costello has delivered civil, structural, and geotechnical engineering solutions that shape New Zealand’s land, buildings, and infrastructure. From our beginnings in Whangārei to projects nationwide, we provide safe, resilient, and innovative outcomes, from homes and subdivisions to disaster recovery and major infrastructure. Built on trust, respect, and collaboration, our legacy gives clients confidence in our proven expertise.
During the Canterbury Earthquake recovery Cook Costello completed:
10,000+
Residential property assessments
10,000+
Ground investigations
1000+
Homes re-levelled and repaired
200+
Commercial and industrial building assessments & repairs
Why Choose Cook Costello?
Our point of difference is combining the depth of services you’d expect from a large engineering consultancy with the responsiveness, efficiency, and cost-effectiveness of a local partner. The client experience is defined by our four guiding principles:
Clarity & Confidence
Engineering is complex. We make it understandable by clearly explaining what's happening and why.
Proactive Guidance
We anticipate risks, provide early advice, and explore alternative approaches that may better suit your goals.
Responsiveness & Reliability
We keep you informed and respond promptly to your questions.
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Our Clients
