Onsite Wastewater Design Specialists

At RISEN, we focus on down-to-earth, reliable wastewater solutions for Marlborough properties and beyond. Our small team of local engineers offers honest advice, smart designs, and practical support from start to finish. Whether you’re renewing a consent or putting in a new septic tank system, we’re here to make the process clear, efficient, and hassle-free.

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Our Services:

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Resource Consent Renewal (Discharge Permit)

We simplify the process of renewing resource consents (also called Dischage Permits), ensuring your system meets local regulations, meets best practices and operates smoothly. If your wastewater system doesn't quite comply or has issues then we can assist with this aswell in a practical manner.

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Design a New System or Replace an Existing One

Whether upgrading an old septic system or starting from nothing (green field site), we design wastewater solutions tailored to your property’s unique needs. Includes Septic tank to trenches or secondary treatment to dripper lines.

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Peer Review

Obtain an independent expert review of an existing wastewater design—a service frequently utilised or required by councils—providing clear and practical advice.

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Installation - Design and Construct

From start to finish, we handle the entire process, delivering reliable, compliant systems built to last. We work with most local contractors/drainlayers.

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Why Choose RISEN?

• Local expertise tailored to Marlborough's and top of the south's unique environment.

• Friendly, approachable service from a small, dedicated team..

• Solutions designed with practicality and compliance in mind.