Committed to Providing Quality Services We are specialised, innovative and proven experts in what we do. With the experience of 50 years, Kowaltzke Drilling Services is delivering reliable results. Owned and operated by Jason Kowaltzke, who is the second generation into this business. With years of experience and vast knowledge in the field, Kowaltzke Drilling Services offers top-notch drilling services. Specialising in time-sensitive and technically complex geological & exploration projects, we're committed to providing an efficient & reliable solution for your underground needs. At Kowaltzke Drilling Services, we guarantee a high quality of workmanship on every project we step foot on We have expert drilling and support teams who are well-experienced in working in varying ground conditions and can drill in the softest silts through to the hardest rock formations. We're committed to the successful completion of your project, whether that's trenching, drilling, or non-destructive digging.