About us

Local sparkies who take solar seriously.

Zero Electrical & Renewables is a Christchurch based electrical team who specialises in solar.

Our story

Zero Electrical and Zero Renewables: one team, one standard.

We started as electricians; switchboards, rewires, the everyday work that keeps Canterbury homes running. When solar arrived, we watched sales companies flood the market and subcontract the actual work to whoever was cheapest that week.

We thought Canterbury deserved better: solar designed and installed by the same licensed electricians who’d answer the phone afterwards. That’s Zero Renewables, and Zero Electrical is still right here beside it.

Christchurch based, servicing from Amberley to Ashburton.

Five smiling ZERO team members in hi-vis stand arms-folded shoulder to shoulder in front of the branded company vans.

Life at Zero

One local crew.

A smiling ZERO team member in hi-vis stands with a solar panel beside the fully branded ZERO Electrical Renewables ute on a suburban street.
Portrait of a smiling ZERO electrician in hi-vis holding a solar panel next to the branded company ute.
A ZERO team member in a branded bucket hat stands with a solar panel beside the fully branded ZERO Electrical Renewables ute.
Rear view of two ZERO team members in branded hi-vis polos walking toward the company ute, with the ZERO Electrical Renewables logo on the shirt back.
A ZERO team member in sunglasses smiles and gives a shaka from the driver's seat of the branded company ute.

The team

The team doing the work

Matt Callaghan, Founder of Zero Electrical & Renewables · Electrical Inspector
Matt Callaghan
Founder of Zero Electrical & Renewables · Electrical Inspector
Adam Walker, Co-Director of Zero Renewables · Electrician - MP Endorsed
Adam Walker
Co-Director of Zero Renewables · Electrician - MP Endorsed
Akila C, Electrician
Akila C
Electrician
Preston B, Electrician
Preston B
Electrician
Brayden O, Apprentice Electrician
Brayden O
Apprentice Electrician
Magnus N, Apprentice Electrician
Magnus N
Apprentice Electrician
Adam S, Solar Installer · Apprentice Electrician
Adam S
Solar Installer · Apprentice Electrician
Judah R, Solar Installer (Mechanical)
Judah R
Solar Installer (Mechanical)
Dre W, Solar Installer (Mechanical)
Dre W
Solar Installer (Mechanical)
Courtney L, Administrator
Courtney L
Administrator
Denver S, Site Supervisor
Denver S
Site Supervisor

What’s different

Why people pick us

We come to you

Every quote starts with a site visit and a proper conversation: your roof, your switchboard, your lifestyle.

Better advice

We stand by our recommendations. The advice you get is what we’d do if it were our own homes.

Here afterwards

We’re your local sparkies to call for anything you need even if it's long after the install.

Word of mouth

What Canterbury says

Synced from Google Reviews: real customers, verbatim.

★★★★★

“We've been working with Matt, Adam and the team at Zero for a while now, their communication, customer care and attention to detail is second to none, absolute pleasure doing business with these guys.”

C
Chris Berryman
Google · September 2026
★★★★★

“Zero renewables have been amazing from quoting to building! They had excellent communication all the way through and Adam was great to deal with. The install went off without a hitch and I am very happy with my new Solar set up :) Highly recommend Zero renewables!”

S
Shane Pond
Google · September 2026
★★★★★

“I am extremely happy with the solar installation completed by Adam and the team at Zero Renewables. From the initial discussions through to the final installation, the whole process was handled professionally and smoothly. Adam was knowledgeable, responsive and always happy to answer questions, and the team did a fantastic job with the installation itself. Everything was well organised, communication was excellent, and I felt confident throughout the process that I was in good hands. The finished system looks great and I am very pleased with how everything has turned out. I would highly recommend Adam and the Zero Renewables team to anyone considering solar. A genuinely great experience from start to finish.”

M
Manu Rastogi
Google · September 2026

Let's chat

Honest advice, no pressure.