Mills Drainage

Mills Drainage is a Western Australian owned and operated business specialising in subdivision drainage and commercial plumbing. We bring over 25 years of experience to every project, delivering dependable construction plumbing, sewer junction solutions, soak-well installations, stormwater management and general drainage services. Our team handles complex drainage needs for subdivisions, unit site developments and commercial projects with a focus on safety, compliance and reliable outcomes. The business is led by Clayton Mills, with Jo Mills handling administration, and a skilled drainer team including qualified plumbers who can execute every aspect of the works required. We work with trusted brands and products in drainage systems to ensure lasting results and clear project milestones for clients.

From initial site assessment to final commissioning, our services cover design support, installation, relocation of sewer junctions, stormwater solutions and ongoing maintenance. We operate wit...