Tell us what you need tested, and we’ll respond with a clear, competitive quote.
Office hours
Monday – Friday
8:00-17:00
Lab testing hours
Monday – Sunday
(seven days a week, year round)
Additional information
Johann Steyn
Managing Director
ND – Civil Engineering
johann@firstprinciples.redswirldesign.co.za
076 761 6094
– Site Laboratories
– Quotations
– Technical Inquiry
Reece Wilson
Operation Director
B-Tech
Geotechnical
reece@firstprinciples.redswirldesign.co.za
082 093 3692
– Materials & Geotechnical Investigations
– Quotations
– Technical Inquiry
Leoni van Kradenburg
Accounting Manager
admin@firstprinciples.redswirldesign.co.za
– Invoicing & Statements
– Orders & Payments
Site Bookings
Lizelda Bezuidenhout
Field Teams Coordinator
bookings@firstprinciples.redswirldesign.co.za
075 078 7150
021 905 0435
Reece Wilson
BTech – Civil Engineering
Operations Director
Site Bookings
Chartered Accountant (SA)
Financial Manager