Call Now: +61 455 224 102 Get a Quote
Adelaide's Trusted Local Experts

Residential & Commercial Electrical Upgrades

Modernise your capacity with switchboard and three-phase upgrades.

Residential & Commercial Electrical Upgrades in Adelaide

Licensed & Insured

5.0★ Rated Local Experts

Why Choose Voltas for Residential & Commercial Electrical Upgrades?

Older electrical systems in established Adelaide suburbs often cannot handle the load of modern appliances. We specialize in upgrading out-of-date ceramic fuse switchboards, replacing dangerous old wiring, and increasing your property's power capacity to meet today's demanding energy needs safely.

Service Guarantees

  • Switchboard replacements with modern safety switches (RCDs)
  • Three-phase power upgrades for heavy machinery or large ACs
  • Mains power upgrades and rewiring of older Adelaide properties

Signs Your Electrical System Needs Upgrading

  • Your switchboard still has old ceramic fuses instead of safety switches
  • You're installing a large ducted AC, EV charger, or workshop equipment
  • Lights dim whenever a large appliance starts up
  • Your property was built before the 1990s and hasn't been rewired since

We upgrade switchboards, mains power, and three-phase supply for properties across Adelaide CBD, Glenelg, Unley, Marion, Mawson Lakes, Norwood, Tea Tree Gully, and Port Adelaide.

An outdated switchboard is a safety risk waiting to happen. Call 0455 224 102 or request a free assessment of your current setup.

Enquire Online

Fill out the form below for a rapid response from our Adelaide team.

What Adelaide Locals Say

Don't just take our word for it.

"We run a business that has several commercial type airconditioners which had shut down on a 40+ degree day. Jai came out on the same day, found the issue and had them started again within the hour. I highly recommend Jai for any aircon issues you may have."

Nick Dragiotis

Google Review

"Jai was very prompt which was great because my air con failed in a heat wave. Luckily, he was able to attend same day and now 24 hrs later I have my new aircon installed and no more heat wave conditions to deal with! Thanks heaps, appreciate it."

Rebecca Williams

Google Review

"Jai came to fix my aircon when other people said that the unit needs replacing. He fixed it on the same day. Highly recommended him to my friends and definitely use him in the future."

Tekiesha Bell

Google Review

"We had Jai come out to look at our 2 ducted aircon units that were tripping at the circuit board. Previously we had 2 different companies come out, one suggested to replace the whole unit and the other didn't believe there was an issue with the unit and suggested it was probably an electrical fault that needed an electrician. We were unsure what was right so thought we would give Voltas a try. Jai arrived within about an hour and a half, diagnosed the issues with parts in both units and had them up and running and serviced within a few hours. Outstanding service and knowledge. Will definitely use these guys for future electrical and aircon work."

J C

Google Review

"Amazing service, came out on a Sunday afternoon with reasonable rates. Jai took the time to explain what he was doing as he went through the diagnostic process and gave us pros/cons of additional services. I would very highly recommend!"

Josh Montagu

Google Review

"Air con in bedroom not working last night - 43 degrees!! Researched a repairer and Voltas was so highly recommended. Called first thing this morning and over the phone was given a solution to try. Did what Jai said and it works. So rare to receive such amazing service. Cannot praise Voltas highly enough."

Peter Roberts

Google Review

"He is very professional in his approach and gets the job done in a timely manner. His workmanship is highly regarded and always provides quality service at reasonable prices. Highly recommend Voltas for any electrical or air-conditioning needs."

Amarpreet Singh Kohli

Google Review

"Highly recommend Voltas Electrical & Air Conditioning. Jai was able to diagnose and fix an urgent issue with our AC before the heatwave rolled in. Thank you Jai!"

Steven Watkins

Google Review

"Safe, efficient and reliable. The electrician provided a detailed explanation of the maintenance needed. Highly professional and prompt service. The work was done cleanly and to a high standard. Amazing 24/7 reliable service. Highly recommended."

Ajuni Malik

Google Review

"Jatender has helped me with a number of electrical upgrades to my small unit over the years. He lives locally and has made himself available to do jobs at short notice on a number of occasions. His work is always thorough and well-priced. A pleasure to deal with — no hesitation recommending him."

A I

Google Review

"Jai came to look at our electrical switch board. The safety switch was tripping. He found the fault straight away and replaced the safety switches on the switchboard. Will definitely recommend him to our friends and family. He did a fantastic job and fixed the issue on the spot."

Rupesh Chauhan

Google Review

"Had the best experience with Jatinder from Voltas Electrical. Our air conditioner had stopped working and we had already got it checked by a few different people, but no one could find the actual issue. Jatinder diagnosed the fault in no time and fixed the problem quickly. Very professional, honest, and reasonably priced. Really appreciate the great service — highly recommend!"

Jatin Dhiman

Google Review

"Outstanding service from start to finish! The air con tech diagnosed and fixed a major issue quickly and efficiently. He explained everything clearly, worked meticulously, and made sure the system was running perfectly before leaving. Absolutely top-notch service!"

Noman Khan

Google Review

"Jai is our lifesaver in summer! Has serviced and fixed our unit on multiple occasions, and has been efficient and fairly priced on all jobs done. Couldn't recommend him more!"

Purna Indigahawela

Google Review

"This company did a repair and replacement job for my auntie's air conditioner. Jai was very professional and explained everything simply and thoroughly. The work was completed promptly, including the ordering of parts in just a few days. We would recommend Jai's services and would use him again."

T Bone

Google Review

"Jai was unbelievable — called him up on the Saturday of the Australia Day long weekend to get someone to come out as our A/C had stopped completely. He came around on Sunday and went through the whole A/C system to get it sorted..."

Kathy Mitchell

Google Review

Frequently Asked Questions

Answers Adelaide customers ask us most about residential & commercial electrical upgrades.

Will I lose power during a switchboard upgrade?

Yes, power is switched off for the duration of the upgrade — usually a few hours. We schedule this at a convenient time for your Adelaide household and let you know exactly what to expect.

How do I know if my switchboard needs upgrading?

Warning signs include visible ceramic fuses, a switchboard over 25 years old, frequent trips, or a burning smell. A free on-site assessment of your Adelaide property will confirm what's needed.

Why do I need to upgrade my old ceramic fuses?

Ceramic fuses do not provide the fast-acting protection against electric shock that modern Safety Switches (RCDs) do. Upgrading is crucial for the safety of your family.

How do I know if I need a three-phase power upgrade?

If you're installing a large ducted air conditioning system, high-end electric cooking appliances, or heavy workshop machinery in Adelaide, you'll likely need three-phase power.

How long does a switchboard upgrade take?

A standard switchboard upgrade for an Adelaide home usually takes between 4 to 6 hours, during which the power will be turned off.

Will upgrading my switchboard reduce my insurance premiums?

Some insurers offer better terms for homes with modern safety switches installed, so it's worth checking with your provider after an upgrade.

Can you upgrade my switchboard without a full rewire?

Yes, in most Adelaide homes we can upgrade the switchboard on its own without touching the existing wiring, unless an inspection finds a separate issue. See our guide to the warning signs your wiring itself needs attention if you're not sure which one applies to your home.

Do I need a bigger switchboard for solar panels or a battery?

Often yes. Solar and battery systems typically need additional switching and metering capacity, which we can assess and include in your upgrade. See our guide to solar & battery switchboard readiness for SA's export rules, the current battery rebate, and real 2026 costs.

What happens to my old switchboard?

We safely disconnect and dispose of the old switchboard and fuses as part of the upgrade, leaving your property tidy.

Get a Quote Call Now: 0455 224 102