Williams Drainage and Civil Limited

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Our mission is to deliver high quality drainage to our clients with service levels that are second to none.

Our Company

What We Do

Williams Drainage and Civil is a Māori privately owned business based in South Auckland. We live and breathe drainage, priding ourselves on being the best in the industry! We specialise in large scale drainage and civil projects. With over 20 years experience in the civil industry we have extensive knowledge with a wide range of expertise amongst our staff, ready to tackle your project.

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Kiwi Owned
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Our Certifications
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2021 - 2023

Waiuku Project:

Fernleigh Trunk Sewer.

This project had some challenges, which involved a live cut in to existing pump station with a high sewage flow rate, and high tides to work around.

This meant extensive dewatering, confined space entries, and deep shoring. The gravity feed line was laid on a minimal grade, which extended for 3km through the main road into Waiuku, with a range of existing services to work around. We were restricted by the hours in which we could work due to the residential location, and traffic management restrictions. All material that was removed to allow installation of the pipe had to be replaced with a certified, compacted aggregate.

Despite these challenges, we were able to meet deadlines, watercare standards, grade and invert levels were achieved.

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Past Projects

Needed Extensive dewatering
Waiuku Project
Waiuku Project
This meant extensive dewatering, confined space entries, and deep shoring. The gravity feed line was laid on a minimal grade, which extended for 3km through the main road into Waiuku, with a range of existing services to work around. We were restricted by the hours in which we could work due to the residential location, and traffic management restrictions. All material that was removed to allow installation of the pipe had to be replaced with a certified, compacted aggregate.
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Te Awa Lakes
Te Awa Lakes
Our expertise and teamwork was the key to success in these challenging conditions. The water was flowing in as fast as we could dig out. Our team was put to the test with controlling the water and keeping us safe. We used trench shields, dewatering systems and a second digger to backfill as we go to prevent pipes moving and/or floating. Planning and preparing was crucial here in completing this project to the highest standards.
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Paerata Rise.
Paerata Rise.
We have completed an extensive amount of work, ranging from pump station upgrades, building rain gardens, Wastewater and storm water reticulation, and large wastewater transmission lines. Pipe work ranging from 100mm PVC, through to 1200 diameter concrete pipe with depths up to six metres deep. Our team has enjoyed working on this project as we have had the satisfaction of seeing a dairy farm transform into a flourishing community.
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What others have asked

Williams Drainage and civil Limited WHITE LOGO. We are the builders for all your construction needs

Our mission is to deliver high quality drainage to our clients with service levels that are second to none.

Drainage Specialist
100% Kiwi Owned
No-Nonsense Reputation
Our Gallery with some of the past work we have done. we have served over 100 happy clients here in nz.