
DRILLING LEADERS IN DOLOMITE STABILITY INVESTIGATIONS
SERVICES

Percussion Drilling
We provide specialist percussion drilling services for geological, dolomite stability, and sinkhole investigations, and can do water drilling on request .

Dolomite Stability Investigations
​​The assessment of the stability of land prior to development is essential in areas underlain by dolomite. The stability assessment forms the foundation of all risk management and mitigation related to development on dolomite in the process of ensuring sustainable development.

Sampling & Backfilling
We provide comprehensive log sheets developed by Hennie Erwee himself. Samples are packed and marked every meter, providing all the information needed to compile an accurate geo-technical report.
We provide accurate water levels and backfill all holes according to regulations, with concrete plug and block.

ABOUT
Started by Hennie Erwee in 1977, Hennie Erwee Boorkontrakteur BK has more than four decades of experience in the field, including dolomite investigations, sampling, and backfilling.
Expertise includes dolomite investigations, sampling, and back filling.
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We specialise in percussion drilling to obtain geological information and samples in dolomite formations, and pride ourselves in delivering results that can be trusted.
1977
540 000+
45+
1000+
Year Established
Meters Drilled
Years in the
Industry
Projects Completed
PROJECTS




































CONTACT
Enquiries:
For any inquiries, questions or commendations, please call: 082 458 3167 or fill out the following form:
Contact Us
Head Office
291 Apache Ave, Cynthia Vale AH
Pretoria, Gauteng
Cell: 082 458 3167
Email: hennie.erwee@outlook.com