Commercial auto electrical services
Downtime costs money, and that’s something every fleet operator understands. At Simms Electrical, we keep your vehicles on the road and earning. From utes and vans through to heavy trucks and machinery, we provide professional, responsive auto electrical services that get results. Based in Onehunga with fully equipped mobile units across Auckland, we’re trusted by businesses that rely on their vehicles every day.
Whether it’s electrical repairs, air-conditioning, or batteries, our team works fast, communicates clearly, and focuses on getting the job done right the first time. With over 50 years in business, we’ve built a reputation for solid workmanship, honest advice, and reliability under pressure.
Battery sales and fleet battery care
Choosing the right battery is more than matching the size and terminals. We start with full diagnostics to confirm your system’s condition, ensuring the replacement is correct for your vehicle’s load and usage pattern. From passenger cars to high-cycle commercial fleets, we supply and install proven battery brands that perform in New Zealand conditions.
Our on-site Battery Town store carries a wide range of stock, so we can test, replace, and fit on the same day. Every installation includes system checks to prevent repeat issues and confirm that alternators and charging systems are functioning properly. It’s a smart, cost-effective service designed to minimise downtime and extend the life of your vehicles’ electrical systems.
Auto Electrician: General Services
For day-to-day electrical issues, you need a workshop that diagnoses and fixes problems efficiently. Simms Electrical handles everything from starter motors and alternators to lighting, wiring, and control modules for cars, vans, and light commercial vehicles. Using modern diagnostic equipment and genuine or high-grade parts, we pinpoint faults quickly so you’re not guessing or replacing parts unnecessarily.
We work closely with fleet managers and business owners who can’t afford long vehicle turnarounds. Our Onehunga workshop offers same-day service where possible, with quality workmanship backed by decades of experience. When you search for “auto electrician near me” in Auckland, you’ll find a team that treats your time and business seriously.
Mobile Auto Electrician Auckland
When a vehicle can’t get to the workshop, our mobile auto electricians come to you. Simms operates service vans across Auckland equipped with the tools and diagnostic systems needed to get vehicles moving again. It’s a convenient, on-site solution for breakdowns, urgent repairs, or scheduled maintenance at your depot or job site.
Our mobile service saves valuable hours and avoids the hassle of towing or transport delays. Whether you’re managing a small trade fleet or a logistics operation with multiple vehicles on the road, you’ll get rapid response, transparent pricing, and professional communication from qualified technicians. If you’re searching for a “mobile car electrician near me,” this is the service built for you.
Heavy Vehicle and Truck Auto Electrical
Trucks and heavy vehicles demand a higher level of electrical expertise. Simms Electrical’s technicians specialise in full diagnostics and repair for truck and trailer systems, from lighting and wiring to starter motors, alternators, and charging systems. We understand the load, vibration, and reliability standards of commercial fleets and have the equipment to handle them.
Our Onehunga workshop and mobile fleet are set up to service trucks, buses, and machinery of all sizes. We also support scheduled fleet maintenance programmes for operators who need consistent quality and quick turnaround. When you need a reliable heavy vehicle electrician in Auckland, we’re the partner you can count on.
Car and Commercial Vehicle Air Conditioning
A functioning air-conditioning system keeps drivers comfortable, reduces fatigue, and maintains performance. At Simms, we handle all aspects of auto air-conditioning, including leak detection, compressor replacement, system regas, and performance testing. Our technicians work on both personal cars and commercial vehicles with quick, professional service.
We also offer preventative maintenance for fleets, ensuring every system runs efficiently before the summer rush. Whether you’re looking for car air-conditioning repair in Auckland or a complete auto AC service, Simms delivers straightforward solutions that keep your team cool and productive.
Why Commercial Customers Choose Simms
Commercial customers stay with Simms because we deliver consistent, reliable results. We use quality components, modern diagnostic tools, and experienced technicians who take pride in their work. From small business utes to heavy transport fleets, we understand the pressure of keeping vehicles moving and the cost of every hour lost.
Located at 70 Princes Street, Onehunga, we service all of Auckland and provide after-hours support for account customers. Call 09 579 1156 or 021 859 547 to book a job or set up a fleet maintenance plan. When you need professional auto electrical repairs or a mobile vehicle electrician in Auckland, Simms Electrical is ready to get you back on the road—built to perform and to last.