Geotechnical Engineering

Engineering Expertise Grounded in Local Conditions

SOIL-ENG Limited provides a wide selection of services tailor-made for each specific project.

At Soil Eng Limited, we provide comprehensive geotechnical engineering solutions tailored to each project’s unique ground conditions. Our services support safe, efficient, and compliant construction across Tauranga, Bay of Plenty, Hamilton, and Wellington, from early-stage investigations to detailed design.

30+ Years’ Experience

Proven geotechnical expertise built over three decades of investigations, design, and consulting across New Zealand and internationally.

Central & Lower North Island Coverage

Reliable service spanning the Bay of Plenty, Waikato, Manawatū, Hawke’s Bay, and Wellington regions.

Standardised Project Pricing

Clear, consistent pricing across all foundation investigations, making it easier to plan, budget, and move forward with confidence.

Specialist Geotechnical Solutions

Dedicated, data-driven analysis and consulting delivering accurate insights tailored to your site and project requirements.

Engineering Soil report that will support either a resource or building consent
Geotechnical desk study for pre-feasibility investigation
Walk-over site investigation
Intrusive site investigations, which may include sampling, drilled hand auger soil profiles and insitu testing
Facilitating drilling of boreholes to retrieve and log core samples
Development of site-specific ground model with characterised engineering characteristics for each layer
Facilitating drilling of boreholes to retrieve and log core samples

Design of shallow foundations
Design of piles
Ground improvement
Pre-loading design and specification to mitigate any long-term consolidation settlement
Identifying of Geo-Hazards
Installation and monitoring of Instrumentation
Soil & Rock Logging
Liquefaction Analysis

Our Detailed Geotechnical Services

Engineering Soils Report

A geotechnical report is an important document required for building consent in New Zealand because it provides information about the site’s soil and ground conditions.

Geotechnical Desk Study

A Geotechnical desk study is an important preliminary investigation that is typically conducted as part of the pre-feasibility study for a construction project.

Facilitating Drilling Of Boreholes

SOIL-ENG plays a critical role in facilitating and supervising the drilling of boreholes for a geotechnical investigation. Here are some reasons why SOIL-ENG is required for this task:

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Identifying Of Geo-Hazards

Councils in New Zealand require a geotechnical engineer to identify geohazards for areas under development because New Zealand has a high level of seismic activity…

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Site Investigations

A geotechnical site field investigation is necessary for various reasons, including identifying soil and rock properties, geological hazards, and other ground conditions…

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Development Of Ground Model

A ground model is an essential component of a geotechnical design report as it provides critical information on the site’s soil and rock properties, geological features…

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Design Of Deep and Shallow Foundations

The design of foundations involves the integration of various data sources, including lab tests, geotechnical site investigation, geology maps, insitu geotechnical testing…

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Ground Improvement

Several different ground improvement methods can be used to improve foundation founding conditions. The selection of a particular method depends on the geotechnical…

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Geotechnical Instrumentation

The purpose of geotechnical instrumentation is to monitor and measure the behaviour of soil, rock, and structures under different conditions and loads…

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Liquefaction Analysis

Liquefaction analysis is done to assess the susceptibility of soils to liquefaction, which is a phenomenon where soil loses its strength and stiffness and behaves like a…

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Earthworks Compaction Control

The purpose of carrying out earthworks compaction control is to ensure that the soil being used for construction or engineering purposes is compacted…

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Lateral Support Design

Lateral support design is done to prevent soil from moving laterally and to provide stability to excavations, retaining walls, and other structures…

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Pre-Loading Design

Pre-loading an area refers to the process of applying a compressive load to a soil or rock layer to consolidate it before starting construction.

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Slope Stability Evaluation

A slope stability analysis is a critical step in the design and construction of structures built on or adjacent to sloping ground. The main reasons for performing…

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Build on certainty

Partner with Soil Eng for data-driven geotechnical solutions backed by 30+ years of proven experience

Expert geotechnical engineering results

Frequently Asked Questions

What is geotechnical engineering and why is it important?

Geotechnical engineering assesses soil and ground conditions to ensure structures are designed safely, efficiently, and in compliance with regulations.

Do I need a geotechnical report for building consent?

Yes, most councils in New Zealand require an engineering soils report to support building or resource consent applications.

What does a geotechnical site investigation involve?

It can include desk studies, site walkovers, soil sampling, borehole drilling, and in-situ testing to understand ground conditions.

Can Soil Eng help with foundation design?

Absolutely. Soil Eng provides both shallow and deep foundation design, along with ground improvement solutions tailored to your site.

Which regions does Soil Eng service?

Soil Eng services the Bay of Plenty, Tauranga, Hamilton, Waikato, Manawatū, Hawke’s Bay, and Wellington regions.

testimonials

Hear From Our Clients

We value our client relationships and work diligently to achieve the best outcomes for projects and properties.

Our feedback speaks for itself:

    
 
 
       Posted on Google  
   
   On Point Distribution Partners Ltd 
 
 
 
 Trustindex verifies that the original source of the review is Google. Alwyn and the team at soil eng did a full geotechnical report on our proposed subdivision. They were extremely knowledgeable and professional, and communication was very good. They completed the required report when promised and did it all at a reasonable price which we were more than happy to pay. I strongly recommend them if you’re looking to have geotech work done.
  
 
      Posted on Google  
   
   Celtic_Coconut 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent communication and attention to detail. Alwyn and his team went the extra mile to ensure everything was accurate and  provided solutions to issues if they arose. Would definitely use them again.
  
 
      Posted on Google  
   
   Dutch Dale 
 
 
 
 Trustindex verifies that the original source of the review is Google. Good to deal with , and was quick with his work
  
 
      Posted on Google  
   
   Myles McKeefry 
 
 
 
 Trustindex verifies that the original source of the review is Google. Alwyn was a pleasure to deal with.
Extremely knowledgeable and helpful with our pre-consent requirements.
He was always available and very prompt with queries.
Highly recommended
  
 
      Posted on Google  
   
   Phillip Aaron Hume 
 
 
 
 Trustindex verifies that the original source of the review is Google. Alwyn has Been fantastic to deal with throughout the geotech process.
He was quick to respond and completed the report in a timely manner.
I highly recommend  Soil-Eng
  
 
      Posted on Google  
   
   Vicki Jamieson 
 
 
 
 Trustindex verifies that the original source of the review is Google. Alwyn was very quick from the time we rung for a geotech report to the delivery of the report.  We highly recommend Soil Eng. Thank you Alwyn 😊
  
 
      Posted on Google  
   
   Margaret Gray 
 
 
 
 Trustindex verifies that the original source of the review is Google. Alwyn was extremely professional.
Very helpful and thorough.
Very prompt and I would highly recommend him.
  
 
      Posted on Google  
   
   Maxwell Sedarat 
 
 
 
 Trustindex verifies that the original source of the review is Google. Alwyn did an excellent job. He has great communication and was very helpful during the process. I would definitely use Alwyn again for any future projects.
  
 
      Posted on Google  
   
   John Sanderson 
 
 
 
 Trustindex verifies that the original source of the review is Google. Alywn was great to work with. He carried out a pre purchase liquifaction assessment and report on a very short timeframe to meet our deadline. Soil Eng was also the most cost effective option available. Excellent work thankyou.