Electrical Rewiring Cost Guide for Adelaide Homes

"How much will it cost?" is almost always the first question we get after an Adelaide homeowner has already worked out — usually from warm power points, flickering lights, or a safety switch that trips too often — that a rewire is probably coming. The honest answer is that it depends on more than most people expect, and a fair quote should explain exactly why, not just hand over a number.

We're Voltas Electrical & Airconditioning, a licensed Adelaide electrical team (licences BLD 274739, PGE 265145, AU 61210) that quotes and completes rewires across Adelaide metro every week, from single-room jobs to full two-storey homes. This guide sets out realistic 2026 South Australian pricing for both partial and full rewires, the specific factors that move a quote up or down, and what a properly compliant rewire actually includes.

Partial vs Full Rewire: What's the Real Difference?

A partial rewire replaces the wiring in a defined area — a single room, a renovation zone, or a specific set of circuits an inspection flagged as degraded — while leaving the rest of the home's existing wiring untouched. It's the right call when a problem is genuinely isolated, for example a laundry or kitchen circuit that's been overloaded for years, or a room being opened up as part of a renovation anyway.

A full rewire replaces every circuit running through the walls, ceiling, and subfloor of the property, along with the power points, switches, and light fittings connected to them. It's the appropriate option once an inspection shows the original wiring throughout the home — not just one area — has degraded insulation, missing earthing, or capacity that's no longer adequate for modern appliance loads. Our companion article on the warning signs a full rewire is needed covers how to tell which situation you're actually in before you start pricing anything.

Real Adelaide Pricing: Partial Rewire

Partial rewires are usually quoted per point (a "point" being an individual outlet, switch, or light fitting) rather than as a flat figure, since the scope varies so much from job to job. Current South Australian and broader Australian trade pricing puts a typical rewiring point at roughly $120–$200, before materials and any wall/ceiling access complications specific to the job. A single room — say a kitchen or a home office being renovated — might involve somewhere from half a dozen to fifteen or so points, which is why two "partial rewire" quotes for different rooms in the same street can land a long way apart. A callout or minimum-job fee typically applies on top for small jobs.

For context, national Australian pricing surveys put a full rewire anywhere from roughly $6,000 to $20,000 depending on the property, with a standard three-bedroom home commonly landing in the $8,000–$15,000 range once a switchboard upgrade is bundled in — broadly consistent with the South Australian figures above, and confirming there's no single "correct" number without knowing the specific property.

What Actually Drives the Cost Up or Down

Four factors explain almost all of the spread between quotes for similarly sized Adelaide homes:

1. House size and age. More floor area means more circuits and longer cable runs, and older homes often carry additional original circuits (power, lighting, and sometimes separate stove or hot-water circuits) that all need replacing, not just an equivalent modern layout.
2. Wall and ceiling access. A single-storey home with generous, walkable roof space is far cheaper to rewire than a double-storey home with plasterboard ceilings throughout, since cable has to be fished through finished surfaces that then need cutting and patching. Homes with plaster-and-lath walls (common in Adelaide's older character homes) or asbestos sheeting, which needs safe handling before any wall access, both add time and cost.
3. Whether the home is occupied during the work. Staying in the property while a full rewire is underway generally means work has to be staged room-by-room to keep some power connected, which typically extends the timeline compared with rewiring an empty house in one continuous run. Staging can also add cost if it means extra site visits rather than one continuous block of work.
4. Whether a switchboard upgrade is bundled in. A standalone switchboard upgrade in Adelaide typically runs $1,500–$3,500 depending on the board's size and what's being replaced, but it's commonly discounted when bundled into a full rewire quote rather than priced as two separate jobs — and in practice, most full rewires need one anyway, since older boards rarely support the safety switches (RCDs) required on newly wired circuits. If you only need the board itself addressed, see our guide on when to upgrade your switchboard.

Why Older Adelaide Housing Stock Needs This More Often

Adelaide has one of the older housing stocks of any Australian capital, with entire suburbs — especially the established inner and near-city areas — built well before current wiring standards existed. Homes built before the 1980s, and particularly those from the 1950s–60s, frequently still carry original wiring insulated with rubber, cloth, or cotton rather than today's PVC. That insulation was standard practice when installed, but it dries out and becomes brittle with age, which is exactly what shows up as cracked or discoloured wiring during a roof inspection. Character-home suburbs like Unley and Prospect have a high share of this older stock, which is why rewiring enquiries from these areas tend to be full-property jobs more often than a single room.

This is a genuinely different problem to an outdated switchboard, even though the two are frequently found together on the same inspection — the board is the distribution point, the wiring is the cabling running through the walls and ceiling to get power there in the first place. Our new house wiring service and electrical installation team handle both, and if something is actively faulty rather than just old, our fault finding & repair team can diagnose and stabilise it before a full rewire is even scoped.

What a Compliant Rewire Actually Includes

A properly compliant rewire in South Australia isn't just about running new cable — it's about the paperwork and standards behind it too. Any new or altered electrical work here must be carried out by a licensed electrician and comply with the AS/NZS 3000 Wiring Rules, which set the technical requirements for cable sizing, circuit protection, and earthing. On completion, the electrician issues an electronic Certificate of Compliance (eCoC), confirming the work was properly licensed and tested — this is the document that protects you if you ever sell the property, make an insurance claim connected to the wiring, or need to prove the work was done to standard. Safety switches (RCDs) are also required on relevant circuits for new and altered work, which is one of the main reasons a switchboard upgrade so often accompanies a full rewire rather than being optional. If you're ever unsure exactly what applies to your property, South Australia's Office of the Technical Regulator is the authoritative place to check.

A written quote worth trusting should specify: the number of circuits and points being replaced, whether the switchboard is included, expected access/patching work, an estimated timeframe, and confirmation that an eCoC will be issued on completion. If a quote is missing any of these, it's worth asking before you agree to the work.

Pricing and compliance details cross-checked against current AS/NZS 3000 Wiring Rules requirements, South Australia's Certificate of Compliance guidance (SA.GOV.AU) and Office of the Technical Regulator, current South Australian and Australia-wide rewiring/switchboard cost surveys, and our own 2026 Adelaide quoting history. For the warning signs that a rewire is needed in the first place, see our guide on signs your home needs a full rewire.