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DPS Consulting specialises in providing custom-tailored business consulting services and window and door specialist advice. Dyann is passionate about doing the job right. Whether you need help understanding the window and door options available in New Zealand for your project, or you need a site visit to understand what has gone wrong, she is here to help. Dyann prides herself on providing independent advice and solutions tailored to your individual needs. 

Dyann understands the importance of staying up to date with the latest industry trends and regulations. She is well-versed in H1 energy efficiency energy modelling, carbon accounting and window and door manufacturing and installation requirements. 

Dyann is dedicated to helping her clients achieve their goals in the most efficient and cost-effective way possible. The services are designed to meet all of our client's needs and provide them with the best possible results.
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Dyann Stewart


Dyann has been in the window and door industry since 1996. Starting as a junior window and door designer, Dyann moved into technical roles, and became the Group Technical Manager for a large glass and window supplier.

From a business point of view, Dyann has undertaken roles in Business Development and Commercial Management in the window and door industry. Dyann has completed a Bachelor of Business with a major in Management and a minor in Business Law.

Dyann is the former chairperson of the Technical Committee of the Window and Glass Association of New Zealand (“WGANZ”), the former Deputy Chairperson of the Board of WGANZ and a previous board member of the Building Enclosure Council. This background has helped Dyann shape DPS Consulting into providing niche support to businesses and private clients that require specialist advice in relation to the window and door industry.  

Get to Know Me

Home Style Green is a local New Zealand podcast.

The podcast aims to inspire people to make a better place to live. Sharing stories and information about healthy, efficient homes in Aotearoa.

In 2020, I chatted with Mathew Cutler-Walsh about my work as a Business Development Manager at Omega Windows and Doors. We ended up delving quite deep in what led me to work with Windows and Doors in New Zealand.

DPS testimonials

John eastwood head shot, John is the current General Manager for Portacom

John Eastwood

Dyann is one of the hardest-working and driven people I've ever worked with. Her ability to lead her team and her capacity for technical information is truly impressive. Over the five years Dyann and I worked together, butting heads from time to time as technical and sales people do, we challenged the status quo, we grew the organisation's market share, capability and depth of knowledge, we had a lot of fun while doing it. Dyann is a true professional and technical leader of her industry.

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