About Us

For over 34 years, GRE Services has proudly supported homes and businesses across the Nelson, Tasman, and Marlborough region as a 100% locally owned and operated company. Built on strong family values and a commitment to quality workmanship, we’ve grown into a trusted provider of electrical, solar, climate, automation, and specialist healthcare solutions.

Today, that experience is backed by a straightforward approach—making electrical work simple, efficient, and stress-free. Whether it’s a quick repair, a full renovation, or a brand-new build, our team has you covered.

Our Team Handles Everything From:

Commercial & Residential Projects
From small upgrades to complex commercial developments, we deliver fit-outs, new builds, renovations, rewires, and ongoing maintenance with precision, care and consistency. Whether it’s a family home or a large-scale site, our focus is the same –– safe, efficient, and future-ready electrical systems that perform long after the job is done.

Solar Solutions
Through our dedicated solar division, we design, supply, and install high-performance solar systems tailored to your property and energy goals. From grid-tied systems to commercial-scale arrays, we help you reduce operating costs and take control of your energy future with confidence.

Comfort & Efficiency
We provide expert installation and servicing of heat pumps, HVAC systems, and energy-efficient lighting solutions. Our focus is on year-round comfort, healthier indoor environments, and smart energy management that lowers running costs.

Specialist Services
Our team offers specialised servicing, repair, and maintenance of dental and medical equipment, supporting healthcare providers with reliable, compliant, and responsive technical expertise.

Smart Technology & Lighting
From structured data cabling and smart automation systems to architecturally designed outdoor and feature lighting, we create intelligent spaces that are connected, secure, and visually striking.

Lighting Up Nelson for Over 34 Years

Back in 1992, Glenn Roberts started a small family electrical business with a simple idea—do the job right and stand by it. What began as a one-man operation quickly earned a reputation for reliability, honest advice, and quality workmanship across the Nelson community. Over time, that foundation grew into GRE Services—a business that has evolved with the region while staying true to its roots. Today, we’re proud to still be a 100% locally owned company delivering trusted electrical, solar, climate, and specialist solutions across Nelson, Tasman, and Marlborough.

From architecturally designed homes to large-scale commercial projects, our work spans a wide range—but our approach stays the same. We bring experience, precision, and practical thinking to every job, whether it’s a quick repair, a full fit-out, or future-focused solutions like solar energy and smart automation.

More than three decades on, the goal hasn’t changed—deliver exceptional service, build lasting relationships, and keep raising the standard. GRE Services—trusted by generations, built for what’s next.

A Bright New Chapter

2024 marked a significant step forward for GRE Services. We moved into a modern, purpose-built workspace designed to improve efficiency, support collaboration, and better serve the growing needs of our customers. This wasn’t just a change of address—it was an investment in how we work and how we deliver. Alongside the move, we refreshed our brand to reflect who we are today: a forward-thinking team grounded in integrity, quality, and continuous improvement. GRE Services isn’t just about electrical work—it’s about building trust, solving problems, and delivering smarter, more sustainable solutions.

Another key milestone saw Colin White and Rebecca McLean join Josh Roberts and Nicola Strom as co-owners and directors. Their combined experience and leadership strengthen the business and reinforce what matters most—our people, our customers, and our community.

Today, GRE Services continues to build on a strong foundation, backed by a capable team, a clear direction, and a commitment to doing the job right.

What Our Customers Have To Say About Us

We have just completed the 1st phase of our kitchen remodel and are so pleased with the work from GRE Services. Allan is certainly the right person for our project as he brings a wealth of knowledge and both Allan and Riley have been a delight to work with. We look forward to our next phase, plus we hope that we are able to continue to have Allan as our sparkie on future electrical work.

Thank you for taking such good care of us. We know we are one of the smallest of your clients, but we feel the attention is the same as one of the largest. We so appreciate working with GRE.

Cathy and Paul Nicholson

I am delighted with the services of Justin, assisted by Riley, in installing two sets of twin heated towel poles in my residence. While the assignment is not yet completed, the imagination and skill of your sparkie has resulted in a significant visual enhancement of the two ensuites. I don’t think this has been an easy assignment; nonetheless he’s gone about it systematically and diligently, and with good cheer, to achieve exactly the outcome I wanted.

This is the second time I have called on GRE for electrical assistance since I purchased my new Nelson home in October. On both occasions I have been well-served by your competent and pleasant team. Thank you.

Neil B

My solar panels have been installed and I’m very happy with the service from GRE. The process of getting a quote was clear and easy to follow. All my questions were answered in a way that improved my knowledge of what my system would do.

The installers were respectful and efficient and kept me informed as they went along. I look forward to lower power bills!

Jan Marsh

Michael and I would like to thank your company for the best service I think we have ever had. The young guy arrived exactly on time, as was promised by your company. He did the job quickly, did not leave a mess, followed instructions and completed the job in a very good time. I want to thank your company and the young guy.

I would not hesitate to recommend people to use your company. Once again, thank you.

Diana and Michael Connolly

We have been involved in a number of projects with Glenn Roberts Electrical, the first of which was the Saxton Oval Pavilion. Since then, we have worked together on a variety of commercial and high-end residential and rest-home projects. All of the team at Glenn Roberts Electrical have been professional and approachable and we have worked together to deliver some fantastic results. Their ability to perform to a high standard on site, but also provide design solutions and manage costs ensures that they are an electrical firm of choice for us as a main contractor. The site foreman that we have worked with have been the highest quality and their input during projects has been invaluable in their success. Glenn Roberts Electrical has a very good communication channels that allows decisions to be made quickly. I have no hesitation in recommending Glenn Roberts Electrical for projects on any scale and would definitely continue to use them for upcoming projects.

Justin Candish - Managing Director

Scott Construction Ltd

The Suter Art Gallery uses a variety of lighting throughout its building, from specialist exhibition track lighting; lighting for ambiance including uplighting and spotlighting architectural features; lighting for way-finding, working and safety; outdoor lighting. The KNX system allows the lighting to be selectively turned on and off using a tablet with just a finger swipe and touch onto simple graphics.

I was told we would have had row upon row of switches had we not got KNX control, instead we have 3 very discrete devices controlling several hundred lights and the sun blinds in the entrance lobby – which makes things very easy to use.

Julie Catchpole - Suter Director

The Suter Te Aratoi o Whakatū Art Gallery : Café : Store : Theatre

GRE were the electrical contractor on our house build in Mapua. Their input was one of the highlights of the build process. They provided great input on the design of all of the electrical systems covering lighting, PV, automation and general power and showed patience while we figured out our final requirements with other contractors. On the job they were courteous, on time, kept us informed, and did what they said they would do.

We love the outcome and would recommend the GRE team to others.

Justin Hall

With 6 Radio Brands coming out of the one building – and with MORE FM as the Civil Defence Radio Station for the region – when the lights go out in the city, the power needs to stay on at Fifeshire House. So, when we identified stability issues with our emergency electricity backup system, we put the call in to Glenn Roberts Electrical. They’ve responded brilliantly, at times in the ugly hours of the night, to some challenging situations. All throughout they have consulted and worked with our Engineering Department to ensure we get the power we need to stay on-the-air.

Glenn Roberts Electrical deserve their reputation and their 30th anniversary celebration!

MediaWorks Radio, Nelson

View all projects