Quick Answer
In Australia, most general maintenance tasks — painting, tiling, patching plasterboard, garden work and basic carpentry — are legal to DIY. However, all electrical work, gas fitting, plumbing rough-in, structural changes and asbestos removal must be done by a licensed tradesperson under state law. Getting this wrong can void your home insurance, fail a pre-sale inspection, or result in a fine of several thousand dollars.
One of the most common questions on Australian home improvement forums is: “Can I do this myself, or do I legally need to hire someone?” The answer depends on the task, your state, and how the work connects to regulated services like electricity, gas, and plumbing.
This guide covers the rules for Victoria and nationally, with notes on where other states differ. If you’re in Melbourne’s south-eastern suburbs — Dandenong, Berwick, Pakenham, Cranbourne, Frankston or Mornington — the same Victorian rules apply to you.
What You Can Always DIY (No Licence Needed)
These tasks are legal to do yourself across all Australian states, provided you follow relevant Australian Standards and your local council’s requirements:
| Task | Details | Permit Needed? |
|---|---|---|
| Interior painting | Walls, ceilings, trim — any interior surface | No |
| Exterior painting | Timber, masonry, metal — excluding lead paint removal | No (check EPA for lead paint) |
| Tiling | Floor, wall, bathroom — including wet areas | No |
| Basic carpentry | Shelving, furniture assembly, non-structural timber work | No |
| Patching plasterboard | Holes, cracks, dings — not involving new electrical or plumbing | No |
| Garden landscaping | Lawns, garden beds, paths, retaining walls under 1m | No (walls over 1m may need permit) |
| Deck construction | Low-level decks under 800mm above ground in VIC | Check with council — may need a building permit |
| Fencing | Standard residential fencing on your boundary | Check with council for pool fences |
| Insulation installation | Bulk insulation in roof space or underfloor | No |
| Replacing tap washers and O-rings | Maintenance work on existing fixtures — not pipe changes | No |
| Installing doorbell (battery powered) | Low-voltage battery systems only | No |
| Replacing light globes and shades | Simple globe and fitting replacement — no wiring | No |
What Requires a Licensed Tradesperson in Victoria
Electrical Work
In Victoria (and all other Australian states), all electrical work must be performed by a licensed electrician. This is governed by the Electricity Safety Act 1998 (VIC) and Australian Standard AS/NZS 3000 (the Wiring Rules). The only exceptions are extremely minor tasks like replacing a light globe or a battery-powered device.
Tasks that must be done by a licensed electrician include: installing or moving power points, installing ceiling fans or light fittings that require wiring, adding circuits to your switchboard, installing split-system air conditioners, installing solar panels and battery systems, and any work inside the switchboard.
Gas Fitting
All gas work must be performed by a licensed gasfitter registered with Energy Safe Victoria. This includes connecting any gas appliance, running new gas lines, replacing gas meters, and repairing gas leaks. Never attempt to connect or disconnect gas appliances yourself — the penalties and risks are severe.
Plumbing
In Victoria, licensed plumbers must do: new pipe installations, moving drains and waste pipes, connecting water supply to new fixtures, roof plumbing (gutters and downpipes — yes, even these), hot water system installation and replacement, and any work that alters the drainage or stormwater system.
Structural Work
Any work that affects load-bearing walls, roof structures, footings or floor frames requires a building permit and must be designed and inspected by a registered building practitioner. This includes removing walls, adding rooms, building extensions, and installing large openings for windows or doors in structural walls.
Asbestos Removal
Homes built before 1990 in Melbourne’s south-eastern suburbs frequently contain asbestos sheeting, particularly in wet areas, eaves and fencing. In Victoria, removal of bonded asbestos materials larger than 10 square metres must be done by a licensed asbestos removalist. Friable (loose) asbestos must always be removed by a licensed contractor, regardless of quantity.
State-by-State Quick Reference
The rules are broadly consistent across Australia, with minor variations:
| State/Territory | Electrical | Plumbing | Gas | Regulator |
|---|---|---|---|---|
| Victoria | Licensed only | Licensed only | Licensed only | Victorian Building Authority |
| NSW | Licensed only | Licensed only | Licensed only | NSW Fair Trading |
| Queensland | Licensed only | Licensed only | Licensed only | QBCC |
| South Australia | Licensed only | Licensed only (some minor work OK) | Licensed only | Consumer and Business Services SA |
| Western Australia | Licensed only (owner-builder exception for own home) | Licensed only | Licensed only | Electrical Inspections WA |
| Tasmania | Licensed only | Licensed only | Licensed only | Consumer, Building and Occupational Services |
| ACT | Licensed only | Licensed only | Licensed only | Access Canberra |
| NT | Licensed only | Licensed only | Licensed only | NT WorkSafe |
The Owner-Builder Scheme in Victoria
Victoria’s owner-builder scheme allows homeowners to apply to the VBA for an owner-builder permit for domestic building work over $16,000. This lets you act as your own builder — coordinating trades, doing some work yourself and hiring licensed contractors for regulated work. You must live in the property as your principal place of residence, and you can only use the scheme once every 5 years. Critically, owner-builders must still use licensed electricains, plumbers and gasfitters for all regulated work.
Insurance and Resale Implications
Doing unlicensed work doesn’t just risk a fine — it can have long-term financial consequences:
- Insurance claims may be denied if an insurer determines that unlicensed work contributed to a fire, flood or structural failure.
- Pre-sale building inspections often flag DIY electrical, plumbing or structural work as defects — this can derail a sale or force expensive remediation.
- Section 32 (Vendor Statement) in Victoria requires sellers to disclose building permits — if work was done without one, buyers can walk away or seek compensation.
- Domestic Building Insurance (mandatory for work over $16,000 in VIC) only applies when a registered building practitioner carries out the work.
Top 10 Tips and Gotchas
- When in doubt, check the VBA register. The Victorian Building Authority’s online register shows whether a tradesperson is licensed, their licence class, and any disciplinary history. A two-minute check could save thousands.
- Permits aren’t just for big jobs. Even a new deck or carport under $16,000 may need a building permit — check with your local council before starting.
- Tap washer replacement is legal. Replacing tap washers, O-rings, showerheads (unscrew and replace) and toilet seats are all legal DIY tasks in Victoria.
- Lead paint changes the rules. Homes built before 1970 may have lead-based paint. Sanding or grinding creates toxic dust — check EPA Victoria guidelines before starting any paint prep on older homes.
- Pool and spa fencing is strictly regulated. Pool barrier compliance in Victoria is governed by the Building Regulations 2018. Any new or modified pool fence must be inspected by a pool safety inspector — don’t DIY and assume it’s compliant.
- Asbestos is common in SE Melbourne homes. Older weatherboard and brick veneer homes in Dandenong, Frankston and Mornington often have asbestos in eave sheeting, bathroom linings and floor coverings. Test before you renovate.
- Certificate of Electrical Safety. Always ask your electrician for a Certificate of Electrical Safety after any work — it’s a legal requirement in Victoria, and your proof that work was done correctly.
- Compliance certificates for plumbing. A licensed plumber in Victoria must provide a Certificate of Compliance for plumbing work. Keep this with your property documents.
- Roofing is regulated plumbing. Many homeowners are surprised that gutters, downpipes and roof flashings fall under the Plumbers Licensing Act in Victoria — a licensed roof plumber must carry out this work.
- DIY saves money but not always time. Factor in tool hire, material wastage and learning curves. For complex tiling, carpentry or plastering jobs, getting one or two quotes first is always worthwhile.
Local Melbourne Resources
- Victorian Building Authority — Find a Registered Practitioner
- Energy Safe Victoria — Gasfitter and Electrician Licensing
- VBA — Owner Builder Information
- Consumer Affairs Victoria — Using Tradespeople
- Bunnings — DIY Advice Hub
- EPA Victoria — Asbestos Information
Frequently Asked Questions
Can I replace a power point myself in Australia?
No — replacing or adding a power point involves mains electrical wiring and must be done by a licensed electrician in all Australian states. Even if the power point itself is physically straightforward, the wiring connection is regulated work. Attempting it yourself is illegal and can void your home insurance.
Can I tile my own bathroom in Victoria?
Yes — tiling, including in wet areas like showers and bathrooms, is legal to DIY in Victoria. You don’t need a licence or permit. However, if the tiling requires moving plumbing fixtures, you’ll need a licensed plumber for the pipe work itself before you tile.
Do I need a permit to build a deck in Melbourne?
It depends on height and size. In Victoria, a freestanding deck up to 800mm above ground level may be exempt from a building permit — but you should still notify your local council. Elevated decks, decks attached to the house, or those near a boundary may require a permit regardless of size. Always check with your council first.
Can I install my own split system air conditioner?
You can physically mount the indoor unit yourself, but the refrigerant piping and electrical connections must be done by a licensed refrigeration mechanic and licensed electrician respectively. In practice, most homeowners hire a licensed installer to handle the complete job — splitting the work rarely saves much money and complicates responsibility if something goes wrong.
Is there any plumbing work I can legally do myself in Victoria?
Yes — minor maintenance work is permitted. Replacing tap washers and O-rings, replacing showerheads (unscrew and replace type), unblocking drains with a plunger, replacing toilet seats and cistern internals (like a float valve or flush button) are all legal DIY tasks in Victoria. Anything involving cutting or joining pipes, or connecting to the water mains or drain system, requires a licensed plumber.
What happens if I do electrical work myself and something goes wrong?
If unlicensed electrical work causes a fire, injury or property damage, your home insurance is likely to refuse the claim. You could also face a fine of up to $18,000 under the Electricity Safety Act 1998 (VIC). In the event of a fatality, criminal charges are possible. The financial and legal risks far outweigh any potential savings.
Final Thoughts
The rule of thumb in Australia is simple: if it involves electricity, gas, plumbing pipes, structural changes or asbestos — call a licensed tradesperson. Everything else is generally fair game, and there’s a rewarding range of tasks that motivated homeowners in south-eastern Melbourne can tackle themselves to save money and build their skills.
If you’re unsure whether a specific task requires a licence, contact the Victorian Building Authority or Consumer Affairs Victoria before starting. A five-minute phone call is cheaper than a compliance order.