About us

About us

Our story

We are United Supply Co (USCO), your partners in piping since 1998.

A proudly New Zealand-owned business, we provide high-quality,
fit-for-purpose piping solutions for the plumbing industry.

Founded over two decades ago as Aquatherm New Zealand, we offer
a range of high-performing piping products from leading brands Aquatherm, Mayer and Cofix. Supported by our passionate team, this gives you the ability and flexibility to deliver piping systems that are high-performing, long-lasting and cost-effective.

Our story

Aquatherm has been setting the global standard in polypropylene piping since 1973. Made in Germany to ISO 9001 and tested to international benchmarks like DVGW and SKZ, it’s gear you can trust to perform.

At USCO, we’ve backed Aquatherm in New Zealand for over 25 years—helping plumbers install smarter, safer, and more durable systems. With local Watermark and BRANZ approvals, plus global certifications behind every fitting, Aquatherm Green and Blue deliver serious confidence on site. Engineered for everything from potable water to chilled and heating applications—this is PP-R done properly.

And we do that by solving problems, not simply selling products. That means working with you to find the right fit for the right job. Providing a service that doesn’t stop once the sale is made. But continuing to support you with expertise, advice, training and hands-on guidance to get the job done.

As specialists in non-copper alternatives, innovation has always been part of what we do. And it still is today. We’re always looking for ways both big and small to improve our products and service – so that you can install better piping systems for your clients.

We’ve got one eye on the future – but we’re grounded in the present. Balancing forward thinking with old-school values of trust and integrity. We’re big on honesty, responsiveness and collaboration. Earning your trust, every day.

So that when you work with us, you know it’s as good as done.

And we do that by solving problems, not simply selling products. That means working with you to find the right fit for the right job. Providing a service that doesn’t stop once the sale is made. But continuing to support you with expertise, advice, training and hands-on guidance to get the job done.

As specialists in non-copper alternatives, innovation has always been part of what we do. And it still is today. We’re always looking for ways both big and small to improve our products and service – so that you can install better piping systems for your clients.

We’ve got one eye on the future – but we’re grounded in the present. Balancing forward thinking with old-school values of trust and integrity. We’re big on honesty, responsiveness and collaboration. Earning your trust, every day.

So that when you work with us, you know it’s as good as done.

Our team

Managing Director

Andrew Sommerville

Andrew Sommerville is Managing Director of USCO, bringing 30 years of experience across the plumbing and piping industry in New Zealand, the Pacific and the UK. With a background as a certifying plumber, his hands-on experience underpins a deep technical understanding of how systems need to perform in the real world. He leads USCO’s business strategy, growth, partnerships and new product development, working closely with customers, consultants and industry partners to solve complex challenges and shape practical, fit-for-purpose solutions.

09 570 7204

Director

Amanda Sommerville

Amanda brings over 25 years’ experience in commercial leadership, brand and business strategy across New Zealand, Australia and the UK. At USCO, she helps shape growth through brand positioning, go-to-market strategy, new product opportunities and business improvement. Her focus is on bringing clarity to the proposition, strengthening how the business shows up in market and improving the tools and ways of working that turn good thinking into practical outcomes for customers.

09 570 7204

General Manager

Tony Powley

Tony brings over 20 years’ experience in sales and operational leadership across the building and plumbing industries in New Zealand and Australasia. At USCO, he leads national sales direction and the day-to-day management of the business, with a strong focus on customer partnerships, channel relationships and team performance. Tony is at his best working closely with people - understanding what customers need, supporting the team in market and turning strategy into practical action that delivers results.

09 570 7204

People

Managing Director

Andrew Sommerville

09 570 7204

Director

Amanda Sommerville

09 570 7204

General Manager

Tony Powley

09 570 7204

Territory Sales Manager - Auckland & North

Tiago De Abreu

021 322 623

Territory Sales Manager - Central North

Mark Barry

027 247 7687

Territory Sales Manager - Lower North & Upper South

Graham Dawson

021 421 672

Territory Sales Manager - Christchurch South

Craig Money

021 571 188

Finance Manager

Ruth Sinclair

09 570 7204

Customer Services Manager

Shelly Singh

09 570 7204

Office Manager

Dhara Topiwala

09 570 7204

Want to get in touch and discuss your options? Contact us today

Want to get in touch and discuss your options? Contact us today

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