- ABOUT MILLSTREAM PLUMBING & DRAINLAYING
Precision plumbing and drainlaying, built to last.
Callan Venter is the owner and operator of Millstream Plumbing and Drainlaying, bringing over 15 years of experience in the plumbing and drainage industry. As a certified plumber and drain layer, Callan is known for his strong work ethic, dedication, and keen eye for detail, ensuring every job is completed to a high standard.
Originally from South Africa, Callan moved to New Zealand to pursue rugby, where he met his wife, Cass. The couple are now proudly based in Warkworth, raising their young son, Rhoe, with another baby on the way.
Callan takes pride in delivering reliable, high-quality workmanship and building lasting relationships with his clients.

OUR COMMITMENT
Professional Expertise & Industry Standards
Certified Drainlaying Excellence
Our drainlaying team holds full NZ certification, specializing in both residential upgrades and commercial systems. We ensure all drainage work adheres strictly to NZ Building Codes and local council environmental protections for the Warkworth area.
Site Safe Health & Safety
We prioritise the safety of our clients and our crew. Millstream maintains active Site Safe certification, meaning every staff member is trained in the latest hazard identification, PPE requirements, and industry-standard safety protocols.
Quality Guaranteed Local Mastery
Our expertise is rooted in the unique geography of Warkworth. We combine technical drainage knowledge with a deep understanding of local ground conditions, ensuring durable solutions that stand the test of time and weather.