Geotechnical Engineers Serving All of Northland
CPEng qualified geotechnical engineers based in Whangarei and Waipu. Site investigations, foundation design, slope stability and council-ready reports across the full Northland region.
Contact UsComplete Geotechnical Services for Northland Projects
Core Engineering Solutions provides geotechnical engineering across all of Northland — from Whangarei and Waipu through Mangawhai, Kerikeri, Dargaville and the Far North. With offices in Whangarei and Waipu, we offer the most comprehensive local geotechnical coverage in the region.
Our geotechnical team holds CPEng (Chartered Professional Engineer) status and has direct field experience across Northland's varied geology — alluvial and peat soils in the Whangarei basin, sandy coastal soils at Mangawhai and Bream Bay, volcanic terrain in the Bay of Islands, and marine sediments of the Kaipara Harbour. We write reports that give designers and councils specific, site-based information — not generic advice.
As a multi-discipline firm, we combine geotechnical investigation with structural design and civil engineering under one roof. Your geotechnical report feeds directly into your foundation design with no translation errors or inter-consultant delays — and we are actively taking new clients across all of Northland, including single domestic sites.
Site Investigations
In-situ testing using CPT, DPSH, hand auger and trial pit methods carried out by qualified geotechnical engineers.
Geotechnical Reports
Council-ready reports meeting Whangarei District, Kaipara District and Far North District Council consent requirements.
Foundation Design
Bearing capacity assessment and foundation design parameters flowing directly into your structural design.
Slope Stability Analysis
Limit equilibrium analysis with Factors of Safety for existing and proposed slopes including seismic scenarios.
Liquefaction Assessment
Liquefaction and lateral spreading assessment to NZS1170.5 for sites in Northland's seismic hazard zones.
Earthworks Certification
Geotechnical inspection of earthworks, fill placement and subgrade. PS4 Producer Statements on completion.
Landslip Assessment
Investigation and remediation design for landslips, unstable slopes and erosion across Northland terrain.
Retaining Wall Geotechnics
Design parameters and wall type recommendations for all retaining structure types.
Wastewater Site Assessment
Soil permeability assessment for on-site wastewater disposal — required for TP58 and AS/NZS1547 design.
Why Choose Core Engineering for Northland Geotechnical Work
Founded in Whangarei in 2020 by David Leslie (CPEng), Core Engineering Solutions is a genuinely local Northland firm with offices in Whangarei and Waipu and deep experience across the region's varied ground conditions.
Chartered Professional Engineer status — the highest credential in NZ engineering. Full accountability on every report.
Geotech, structural and civil under one roof. No inter-consultant gaps, no duplicate fees, better-coordinated consents.
Actively available for residential, commercial and rural projects across all of Northland — including single domestic sites.
Whangarei and Waipu offices. Direct field experience from Kaipara to Kaitaia across all Northland ground conditions.
Over 30 years cumulative team experience across residential, commercial, infrastructure and rural Northland projects.
Northland Geotechnical Engineering — FAQs
Who provides geotechnical engineering across Northland?
Core Engineering Solutions Limited provides geotechnical engineering across the full Northland region from offices in Whangarei and Waipu. Our CPEng qualified team covers site investigations, foundation design, slope stability and council-ready reports for residential and commercial projects throughout Northland.
Do I need a geotechnical report to build in Northland?
Yes. Whangarei District Council, Kaipara District Council and Far North District Council all require geotechnical reports for most building consent applications — especially on sloping sites, near waterways, on coastal properties, or where ground hazards are identified.
What ground conditions are common in Northland?
Northland geology varies significantly by location. Whangarei has alluvial and peat soils in the basin and residual clays on hillsides. Mangawhai and the Kaipara coast have sandy soils and high groundwater. The Far North has volcanic soils near Kerikeri and ancient swamp ground around Hokianga. Core Engineering has direct field experience across all of these environments.
Can Core Engineering do geotechnical and structural together?
Yes — and this is one of Core Engineering's key advantages over specialist geotechnical-only firms. Our team covers geotechnical, structural and civil under one roof. Your geotechnical report feeds directly into your foundation design, reducing total cost and speeding up consent.
Is Core Engineering taking new geotechnical clients?
Yes. Core Engineering is actively available for residential, commercial and land development geotechnical work across all of Northland, including single domestic sites and straightforward residential investigations.
What areas does Core Engineering cover?
We cover all of Northland: Whangarei, Waipu, Mangawhai, Langs Beach, Ruakaka, Kerikeri, Paihia, Bay of Islands, Kaikohe, Dargaville, Kaipara, Maungaturoto, Kaiwaka, Kaitaia and the Far North District.
Ready to Start Your Northland Geotechnical Project?
Call us on 09 553 3660 or send a message — we cover the full Northland region and are taking new clients now.
Contact Our Team
Core Engineering Solutions is your partner in developing a strong and innovative future. We offer precision design and innovative problem-solving through our civil, structural, and geotechnical engineering services in Whangarei.
QUICKLINKS
Copyright © 2025 Core Engineering All rights reserved