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About Us

GRE Services is a specialist electrical servicing and contracting company to Nelson’s commercial and residential market.  We have extensive experience in all types and sizes of electrical projects, specialising in architecturally designed homes and commercial buildings.

The scope of operations undertaken includes small repairs and servicing; commercial fit-outs and new builds; residential renovations, rewires and new builds; landscape lighting; energy efficient lighting and power; data and automation.

GRE Services Proudly 100% Locally Owned and Operated for over 30 years.

Management and Office Team

Josh Roberts

Company Director

Josh is the Company Director and owner of the company.  He is a fully qualified electrician with over 24 years experience gained both in New Zealand and the UK.  Most of this time has been spent in the commercial and residential sectors. Josh is responsible for the day to day running of the business and the project management of our large projects.  Josh has worked on many electrical projects of varying sizes throughout his career both in hands-on roles and in management roles in NZ and in the UK.

Colin White

Operations Manager and Solar PV Manager

Colin White, an experienced electrician with great people and leadership skills heads up our Service team and ensures the smooth running of this busy part of the business by working closely with the service team, our customers and suppliers. Colin also manages our Solar PV division – Solar Smart Energy, providing customers with specific Solar PV system designs for their individual needs through to managing the installation process.

Jon Taylor

QS and Project Manager

Jon has had a variety of roles in his 20 plus years’ experience of the electrical industry. Project managing government contracts in Wellington for both electrical and data aspects that involved a high sense of security and trust. Running a successful electrical business in the Waikato for over 8 years before moving to Nelson with his family in 2014. Jon has a dynamic skill set that he applies to the Quantity Surveying and Project Management parts of our business. A proven problem solver that prides himself on developing a solution.

Rebecca McLean

Service Team Manager

Rebecca is the Service Team Manager.  She has been with the company for over 10 years and works closely with Colin our Operations Manager to ensure our busy Service Team to managed and all jobs attended to ontime.  Rebecca is the first point of call for our customers on the phone, providing a friendly and very efficient service to our valued clients.

Gareth Hammon


Gareth has over 30 years’ experience in the commercial, light industrial and domestic areas of the electrical field. He Immigrated to NZ from Somerset UK in 2003 where he has worked all over the South Island before settling with his family in the Nelson/Tasman region. With his great personal skills and being able to communicate with clients. His role finds him quoting all facets of the electrical industry and providing support to the operations manager to ensure smooth running of the day to day businesses.

Glenn Roberts

IQP and Fire Alarm Design

Glenn is a fully qualified electrician with over 30 years management experience on a wide range of projects throughout the region. Glenn handles all our Fire Alarm work from the system design through to project management of the installation and IQP Inspections.

Nichola Strom

Office and Finance Manager

Nichola is the Office and Finance Manager.  As part owner (with Josh) she is responsible for the financial reporting, payroll, marketing and administrative requirements of the company.

Andrea Friend

Andrea manages the scheduled maintenance administration, coordinating the IQP for Building BWoF Inspections and Checks for our customers.  This involves liaising with Councils, Building Managers and Owners, Scheduling our IQP Inspectors, invoicing and administration.  Andrea is also the company receptionist and assists in all other areas of the administration of the company.

Electricians and Apprentices

We have a team of qualified NZ registered electricians with an extensive range of knowledge in the electrical industry of New Zealand and abroad, including the UK and Europe.  Each has successfully run and managed a wide range of projects for us.  Our team of Electricians include an Electrical Inspector; IQP Qualified Electrician and Lift Service Technician enabling us to offer our customers a wide range of services.

At present we have 4 Apprentices in our team at various stages of their Apprenticeship working towards their electrical qualification.  We always encourage our Apprentices to compete at the Master Electricians’ New Zealand Apprentice of the Year Challenges, and are proud of their success, with two going through to the finals in recent years claiming 4th place in 2018 and 2nd place in 2019.

What Our Customers Have To Say About Us

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.


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

From the initial planning to first fix to finishing, Glenn Roberts Electrical were exceptional. What also struck me is how proud the staff are of working for Glenn Roberts Electrical. I have no hesitation in recommending Glenn Roberts Electrical.

Kevin and Jane Hopgood

Redbox Architects Ltd have worked with Glenn Roberts Electrical on a number of projects. The most recent was my own new family home in Monaco, Nelson. The lighting was seen as a key element of the design, and was used to accentuate the architecture. We wanted an electrical firm that would take care on the installation and provide a well finished job. Glenn and his team did this without hassle and I can recommend them to other clients.

Redbox Architects Ltd

It was a pleasure to have the competent staff of Glenn Roberts Electrical on board, ensuring that every aspect of their part complied with and exceeded the expectations of both the client and us.  This job was successfully completed on time and to budget.  We have found Glenn Roberts Electrical to be very professional in their approach. They were always cooperative and helpful in solving problems, and the “can-do”attitude of Josh Roberts and his team are a credit to the Electrical trade.

Martyn Kemp
Kemp Construction

Tahunanui School are very grateful to Glenn Roberts Electrical for their support of our school.  We have recently purchased a new set of sports uniforms with their help, and they are very generous with their time and assistance with our school gala.

Tahunanui School, Nelson

As an interior stylist, I have very specific ideas and always look to the fresh and innovative. Working with Glenn Roberts both in the planning stages and construction of the project was refreshing in that my ideas and attention to detail was respected, and solution based attitude was applied throughout the process. I will certainly be working with the Glenn Roberts team again.

Ana Stevenson
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