Skip to content
n
  • Home
  • Services
    • Surveying
    • Engineering
    • Planning & Consents
    • Environment
    • Energy Sector
    • Wai Eye – Water services
    • GIS Dashboards & Data Platforms
  • Projects
  • News
  • About
    • About BTW
    • Our Values & Culture
    • Our People
    • Careers & Vacancies
    • Quality, Safety & Environment
    • Community Connection
    • Clients & Feedback
    • Memberships & Affiliations
  • Contact
Search
Facebook-f Linkedin-in Instagram

KAIPŪKAHANGA

ENGINEERING

  • ENGINEERING
  • Civil Design & Three Waters Engineering
  • Geotechnical Investigations & Reporting
  • Soil Tests & Foundation Design
  • Structural Design & Seismic Assessment
  • Bridges, Traffic & Transportation
  • Retaining Wall Design
  • ENGINEERING
  • Civil Design & Three Waters Engineering
  • Geotechnical Investigations & Reporting
  • Soil Tests & Foundation Design
  • Structural Design & Seismic Assessment
  • Bridges, Traffic & Transportation
  • Retaining Wall Design
Get in touch

Engineering with 
creativity and precision
to deliver smarter,
safer builds.

BTW’s engineering consultants deliver practical, safe and sustainable outcomes nationwide. Our civil, structural and geotechnical engineers work as one team to design solutions that reduce risk, save cost and keep projects on track.

Why choose this service
  • Safety and compliance by design: Chartered professionals, producer statements and code‑ready deliverables.
  • Integrated disciplines: Civil, geotechnical and structural inputs aligned from day one, supported by BTW’s multidisciplinary service provision and integrated approach, minimising rework and delivering seamless outcomes.
  • Cost‑effective outcomes: Fit for purpose and fit for budget with efficient tools and right-sized solutions.
  • Regional to nationwide: Proven expertise across councils, infrastructure and private projects throughout New Zealand.

SUB-SERVICES / APPLICATIONS

  • Civil Design and Three Waters Engineering
  • Geotechnical Investigations and Reporting
  • Soil Tests and Foundation Design
  • Structural Design and Seismic Assessments
  • Bridges, Traffic and Transportation Engineering


Learn about our engineering services on their dedicated pages (See the menu above)
Discover our recent projects or check the FAQs below.

BTW Engineering NZ
BTW Engineering NZ
BTW Engineering NZ
BTW Engineering NZ
BTW Engineering NZ

Engineering – Your questions answered

What engineering services do you provide, and how do they work together?

Our civil, structural and geotechnical engineers collaborate with BTW surveyors, planners and environmental scientists giving clients a fully coordinated pathway from concept through to construction.
Structural Design
Civil Design
Three Waters
Geotechnical Engineering

When should I engage an engineer?

As early as possible. Involving BTW at the feasibility or concept stage resolves geotechnical, servicing and access issues before design or consent, saving significant time and cost.

When do I need a geotechnical report?

Common triggers include new dwellings, subdivisions, significant earthworks, retaining walls, slopes, and liquefaction-prone ground. Councils often require a geotechnical report from a qualified geotechnical engineer to support building consent.
Geotechnical Engineering

How do BTW engineers work with councils across New Zealand?

We coordinate technical inputs, prepare compliant designs and provide producer statements. Our local knowledge of regional standards ensures smoother approvals and fewer delays.

Can you provide site supervision and construction support?

Yes. Our structural engineers and wider team provide site observation, construction review and supervision to help achieve full code compliance.

What is Three Waters Engineering, and how can BTW help?

Three Waters refers to drinking water, wastewater, and stormwater systems. BTW’s civil engineers design and assess networks that safely manage these essential services. From new subdivisions to major infrastructure upgrades, we deliver integrated water solutions that protect communities and the environment.

Learn more about our Civil Design and Three Waters Engineering.

Start your enquiry

Your project leads

Ian Steele – Director Engineering, Principal Civil and Transport Engineer
Mathew Dickey – Technical Director – Three Waters, Principal Civil Engineer
Russell Harrison – Principal Structural Engineer, New Plymouth
Chris Twaddle – Principal Structural Engineer, Hamilton
Sean Husband – Civil Engineering Team Leader, New Plymouth 
Wasi Shirwali – Engineering Team Leader, Hamilton

Ian Steele, BTW Engineering Manager Matthew Dickey, BTW Engineering and Three Waters Specialist Russell Harrison, BTW Structural Engineer Chris Twaddle, BTW Structural Engineer Sean Husband, BTW Engineering Team Leader BTW Engineering Team Leader

Meet all BTW project specialists

BTW holds Toitū Gold Certification and is a member of The Taranaki Māori Business Network.

Our services

Learn how our expertise can produce successful outcomes for your project

Surveying
Civil Engineering
Structural Engineering
Planning
Environment
UAV Services
3D Laser Scanning
Data Platforms
Energy
Water Infrastructure Intelligence
See all projects
Get in touch
Careers & Vacancies

New Plymouth
179 Courtenay Street
New Plymouth 4310

06 759 5040

Hamilton
517 Anglesea Street
Hamilton 3204

07 595 0020

Raglan
1 Wainui Road
Raglan 3225

07 595 0020

Taumarunui
35 Morero Terrace
Taumarunui 3920

0800 289 787

Taupō
55 Kaimanawa Street
Taupō 3330

0800 289 787

  • Contact
  • Privacy Policy
  • Site Map
  • Contact
  • Privacy Policy
  • Site Map
Facebook-f Linkedin-in Instagram
BTW_RSK_FOOTER
  • © BTW Company
  • 2026
  • Website by
Limelight Digital