About us

Mainland Drainage is a locally owned and operated Canterbury drainage company, proudly servicing Christchurch and the wider Canterbury region. Founded by Kieran Ring, Mainland Drainage was built on a passion for delivering reliable, high-quality drainage solutions backed by over 12 years of industry experience.

At Mainland Drainage, our goal is simple — to deliver professional, efficient, and trusted drainage services Canterbury homeowners and businesses can rely on

After years working in the drainage industry, Kieran saw an opportunity to create a business that prioritises honest communication, dependable service, and workmanship that stands the test of time. Mainland Drainage was established to provide practical, long-lasting solutions tailored to Canterbury’s unique ground conditions and environment.

We specialise in stormwater drainage, sewer repairs, new drainage installations, blocked drains, and drainage maintenance for residential and light commercial projects. Whether it’s a small repair or a full drainage system installation, we take pride in doing the job right the first time.