General information only
This guide explains what published policy wordings say and what Australian law requires. It is general information, not advice, and it doesn’t consider your objectives, financial situation or needs. Policies differ, and wordings change: the PDS, policy wording and schedule for your own cover are the documents that count. The insurers quoted here are examples we could read in full; they are not necessarily on our panel.
The short version
- Public liability is the core cover for plumbers: damage to clients’ homes and injury to people, while you work.
- In Victoria, $5 million public liability is a licence condition, and “plumbing insurance” for compliance-certificate work is a separate policy.
- Read three clauses closely: faulty workmanship, underground services and contractual liability.
- On our panel, a domestic plumber’s liability and contents cover came back at $2,017 to $4,661 a year, from three insurers.
What insurance do plumbers commonly hold?
- Public liability, for injury to other people and damage to their property caused by your work: the flooded kitchen, the ceiling below a bathroom, a client tripping over your hose. Commonly held at $10 million or $20 million, often because a builder or client asks for that.
- Tools and stock, for the gear and fittings in your van and at jobs, through the portable equipment and property sections of a business insurance pack.
- Workers compensation, compulsory under state law if you employ anyone, apprentices included.
- Commercial motor, for the van or ute.
- Plumbing insurance (Victoria), the consumer protection cover for compliance-certificate work. See the next section.
What insurance do plumbers need in Victoria?
At least $5 million of public liability for the licence, plus plumbing insurance for compliance-certificate work. Victoria is the state where insurance for plumbers is written into the licence. Two separate policies are involved:
| Policy | When it’s needed |
|---|---|
| Public liabilityat least $5 million | To be issued or to renew a plumbing licence. The Building and Plumbing Commission asks for a certificate of currency showing the cover. |
| Plumbing insuranceconsumer protection | For work that needs a compliance certificate, such as jobs over $750, gas work and below-ground sanitary drains. The commission sets the minimum amounts per certificate. |
The two are easy to confuse because both are called plumber’s insurance. Public liability protects you from claims by others; plumbing insurance protects the homeowner if the work is defective and you can’t fix it. Gary’s business pack provides public liability and property cover. It does not provide plumbing insurance.
Other states and territories set their own rules for licensing and insurance. Your regulator is the authority on what your licence needs. Electricians have a licence rule in both Queensland and Victoria: see electrician insurance.
Which policy clauses matter most to plumbers?
Faulty workmanship, underground services and contractual liability. We read the public liability section of Blue Zebra’s published business pack wording (dated, in the sources below). Three of its exclusions are worth a plumber’s attention more than anyone’s. Other insurers’ wordings have their own versions; the PDS for your policy is the one that counts.
1. Faulty workmanship: the damage, not the redo
“property damage to any part of any property that must be repaired, reconditioned or replaced by reason of incorrect work performed by you, or by reason of materials or equipment which are or are proved to be defective or inadequate in connection with such work, but this exclusion does not apply to property damage resulting from such work.”Blue Zebra Business Insurance PDS (BZBPK_PDS_260701), Business Liability exclusion 8
In practice: if a joint you made fails and floods the kitchen, the policy is written to respond to the damaged floor and cabinets, but not to the cost of redoing your joint. That last part is yours.
2. Underground services: locate them first
“property damage to underground services including, but not limited to, water, gas, sewerage or fuel pipes, electric or telephone cables, optic or telecommunication wires or cables, unless prior to the start of such works the insured entity obtains advice from the relevant authority as to the physical location of such services and takes all precautions to avoid such services.”Blue Zebra Business Insurance PDS (BZBPK_PDS_260701), Business Liability exclusion 18
Hit a gas main or a fibre cable without having located the services first, and this wording leaves the damage uncovered. Getting the location advice before every dig (in Australia, through the national free service for locating underground assets) and keeping a record of it is what keeps the cover in place.
3. Contractual liability: promises beyond the law
“any liability or obligation assumed by an insured entity under any agreement or contract, except for as provided by Extension of Cover 3 ‘Contractual liability’.”Blue Zebra Business Insurance PDS (BZBPK_PDS_260701), Business Liability exclusion 4
A head contractor’s subcontract may ask you to indemnify them for more than the law would make you pay. The policy covers your legal liability and gives back a defined set of contract terms in its extension, not everything you sign. Read the indemnity clause before you agree to it.
How much does plumber insurance cost?
$2,017 to $4,661 a year for a Queensland domestic plumber’s liability and contents cover. Real prices our insurers returned for two plumbing businesses in September and October 2026, for public liability plus contents and stock cover. Each row is the lowest and highest insurer price for the same answers.
| The plumbing business | A year |
|---|---|
| Domestic plumber, Queensland$5m public liability · $40,000 contents and $15,000 stock · $420,000 turnover | $2,017 to $4,6613 insurers |
| Plumber and refrigeration, Victoria (domestic)$15m public liability · $50,000 contents and $20,000 stock · $500,000 turnover | $4,108 to $15,6472 insurers |
Including GST, stamp duty and the insurer’s fee, before our broker fee. Your work, turnover, wages, limit, claims and location will change them.
Note the spread: for the same Victorian business, one insurer’s price was 3.8 times the other’s. More on what drives a price in how much is public liability insurance.
What do builders ask subcontracting plumbers for?
Plumbers working as subcontractors are usually asked for their own public liability before they start on site, often at $10 million or $20 million, and the builder’s policy is generally written to protect the builder, not you. Working for yourself? See public liability for sole traders.
If you use subcontractors yourself, the quote asks what you pay them each year, and it is common to ask them for their own certificate of currency.
Price your plumbing business
One online form, more than one insurer pricing it, the PDS beside every price, and the insurer’s certificate of currency once it’s placed.
Questions plumbers ask about insurance
What insurance do plumbers need in Australia?
Public liability is the cover plumbers are most often asked for, and in Victoria it is a licence condition at $5 million or more. Many plumbers also insure their tools and van stock, and Victorian plumbers need plumbing (consumer protection) insurance for work that needs a compliance certificate. Workers compensation is compulsory if you employ anyone. What a particular business needs depends on its work, contracts and state.
Do plumbers need public liability insurance?
In Victoria, yes: a licensed plumber needs at least $5 million of public liability to be issued or to renew a licence. Other states and territories set their own licence rules, and in every state it is what builders, head contractors, property managers and commercial clients most often ask a plumber to show before work starts, usually at $10 million or $20 million. Your regulator is the authority on your own state’s licence.
How much is plumber insurance?
For the plumbing businesses priced on our panel, public liability with contents and stock cover came back at $2,017 to $4,661 a year for a Queensland domestic plumber at $5 million, and $4,108 to $15,647 for a Victorian plumber also doing refrigeration at $15 million. Your trade mix, turnover, wages, limit and claims history change the price.
How much is public liability insurance for plumbers?
The plumbing prices above include contents and stock cover. For public liability on its own, the closest trade we priced at every limit is a domestic electrician in NSW turning over $300,000: $670 to $1,442 a year at $5 million, $788 to $1,672 at $10 million and $905 to $2,051 at $20 million. A plumber’s own price depends on the work (gas, drains, commercial), turnover, wages and claims history.
Does public liability cover a leak from my own work?
Public liability is written to respond to damage your work causes to other people’s property, such as a flooded kitchen floor. It generally doesn’t pay to redo the faulty work itself: Blue Zebra’s faulty workmanship exclusion removes the cost of repairing the part you worked on, but not the damage that results from it.
Is plumbing insurance the same as public liability?
No. In Victoria, “plumbing insurance” is consumer protection cover for the homeowner, required for work that needs a compliance certificate, and it is a separate policy from public liability. Gary’s business pack provides public liability and property cover; it does not provide plumbing insurance.
Do plumbers need professional indemnity?
Most plumbers doing hands-on work don’t, because their risk is injury and property damage, which is public liability. Plumbers who design systems, sign off on others’ work or give paid advice sometimes hold professional indemnity too. Our guide to public liability vs professional indemnity sets out the line.
Is this advice for me?
No. This guide is general information about what plumbers commonly hold and what one published wording says. It doesn’t consider your objectives, financial situation or needs. Read the PDS for any cover you are considering, and check your own state’s licensing requirements with your regulator.
Sources
- Blue Zebra Insurance, Business Insurance PDS (BZBPK_PDS_260701, effective 1 July 2026), from bzi.com.au.
- Building and Plumbing Commission (Victoria), plumber insurance requirements.
More plain-English reading in Gary’s guides.
Important
This guide is general information only and is not personal advice. It doesn’t take into account your objectives, financial situation or needs. It summarises published documents as they stood when we read them; insurers change their wordings, and a policy’s schedule and endorsements can change how its wording applies. Quotations are reproduced for commentary and are accurate to the versions listed. Before deciding on any cover, read the PDS, policy wording and Target Market Determination for that product. Gary is not suggesting any of the insurers named is, or isn’t, right for your business.
Want to see what public liability cover costs you?
One form, the PDS beside every price, and a broker to ask when a condition doesn’t make sense.