How to quote a plumbing job in Australia so you win the work and protect your margin

Quoting a plumbing job in Australia means scoping the work on site, pricing labour and materials with a margin that covers overheads and callbacks, and sending the quote fast. Plumber hourly rates typically sit between $80 and $130 per hour before GST¹. The plumbers who win more work quote quickly and follow up the ones that go quiet.

Updated 17/08/2026

Why does quoting speed matter for plumbers?

A homeowner with a burst pipe or a gas leak is ringing three plumbers. The first one to quote clearly wins the job. Firms that tried to contact potential customers within an hour of receiving a query were nearly seven times as likely to qualify the lead as those that tried even an hour later².

Most plumbing businesses lose work not because of price, but because the quote arrived too late or never arrived at all. Same-day quoting after the site visit is the target. Pre-built templates for common jobs (hot water replacements, blocked drains, tap replacements, gas compliance checks) let you quote from the van before you drive to the next call. For more on quoting speed and structure across all trades, see our tradie quoting tips guide.

What should a plumbing quote include?

A clear, itemised quote builds trust with the customer and protects you if there is a dispute. Every plumbing quote should cover:

• Scope of work. Describe the job in plain language: what you will do, where, and the expected outcome.
• Labour. Hours or a fixed price, plus your call-out or attendance fee. Master Plumbers Australia reports that the average call-out or attendance fee sits between $60 and $100 before GST³.
• Materials. List the fittings, pipes, valves and fixtures by type and quantity. Note whether you supply them or the customer does.
• GST. State clearly whether the quoted figure includes or excludes GST.
• Validity period. How long the quote stands, typically 14 to 30 days.
• Licence number. Your plumbing licence number and the issuing authority. This is a compliance requirement in every state.
• Insurance. A note that you hold public liability and, where required, home warranty insurance.
• Exclusions. What the quote does not cover: asbestos remediation, structural work, landscaping reinstatement, council approvals.

How much should a plumber charge in Australia?

Plumber hourly rates in Australia typically sit between $80 and $130 per hour before GST, depending on the state and the complexity of the work¹. On top of the hourly rate, most plumbers charge a call-out or attendance fee that covers travel and the first portion of diagnostic time.

The plumbing services industry in Australia generates revenue of approximately $19.2 billion annually⁴. That scale means pricing is competitive. The plumbers who hold margin are the ones who scope accurately, quote fast, and avoid the race to the bottom on hourly rates.

Common residential jobs and their typical price ranges (directional, varies by state and access):

These ranges are directional guides. Always quote based on what you see on site, not a price list. If you are looking for software to speed up quoting, our quoting software page explains how automation fits in.

What licensing do you need to quote plumbing work?

Plumbing is a licensed trade in every Australian state and territory, with a zero-dollar threshold. That means any amount of plumbing work, even a single tap washer, requires a licence. Advertising or quoting plumbing work without a current licence is an offence.

"A plumber, drainer or gasfitter must hold a licence to do plumbing, drainage or gasfitting work in New South Wales." (NSW Fair Trading, source: fairtrading.nsw.gov.au)

State and territory plumbing authorities:

• NSW. NSW Fair Trading (Building Commission NSW).
• VIC. Victorian Building and Plumbing Commission (BPC).
• QLD. Queensland Building and Construction Commission (QBCC).
• SA. Consumer and Business Services (CBS).
• WA. Plumbers Licensing Board (PLB).
• TAS. Consumer, Building and Occupational Services (CBOS).
• NT. NT WorkSafe.
• ACT. Access Canberra.

Include your licence number on every quote. It builds trust, it satisfies the advertising rules in your state, and it gives the customer a way to verify your credentials. If you also hold a gasfitting endorsement or a restricted electrical licence for hot water work, note those separately. For more on how plumbing businesses can grow beyond word of mouth, see our guide to getting more plumbing jobs.

How do you protect your margin on plumbing quotes?

Margin protection starts at the site visit, not at the pricing stage. Three things that erode plumbing margins more than any other:

• Under-scoping the access. A blocked sewer line quoted as a simple jet blast becomes a day-long job when the access point is under a deck or behind a retaining wall. Inspect and document access before you quote.
• Supplying materials at cost. If you supply fixtures, fittings, or a hot water unit, add a margin. Your time sourcing, transporting, and warranting those items has a cost.
• Not quoting variations. If the job scope changes on site (old galvanised pipe behind the wall, asbestos sheeting, a collapsed clay drain), a signed variation keeps the margin intact. Quote the base scope, note the exclusions, and quote variations separately when they arise.

Healthy gross margins on residential plumbing work typically sit between 25% and 45% (assumption: based on typical labour-to-materials ratios across residential plumbing job types, directional), depending on job type. A blocked-drain call-out with minimal materials carries a higher margin than a full bathroom rough-in with fixtures. Factor in travel time, warranty callbacks, insurance, vehicle costs, and your annual overhead recovery before setting your rate.

Should you quote fixed price or hourly?

It depends on how well you can scope the job before starting.

• Fixed price works for defined-scope jobs. Hot water replacements, tap installs, gas compliance checks, fixture upgrades. You know the labour, the materials and the time. The customer gets certainty, and you get margin control.
• Time and materials works for open-ended jobs. Tracking a leak through a wall cavity, CCTV drain inspections with unknown findings, diagnosing intermittent faults. Quote your hourly rate, the call-out fee, and a not-to-exceed estimate where you can give one.

For diagnostic work, some plumbers charge a flat diagnostic or call-out fee (typically $80 to $150, assumption: based on common AU call-out fee ranges above the Master Plumbers attendance fee baseline, directional), then provide a fixed quote for the repair once they know what they are dealing with. This protects your time and gives the customer a clear decision point.

How do you follow up quotes that get no reply?

Most plumbers never follow up. That is an advantage for the ones who do.

Send a short follow-up within two to three days of the original quote. Reference the job, not the price. Something like: "Just checking in on the hot water quote for the property. Happy to answer any questions." A second follow-up at one week is reasonable. After that, leave it.

Automation can handle this for you. A follow-up sequence triggered when a quote has been sitting unanswered means leads stop falling through while you are on the tools (see our quote follow-up guide). If you want to see how that works for plumbing businesses, book a free 15-minute discovery call and we will walk through it.

What quoting mistakes cost plumbers the most work?

Five patterns that lose more plumbing jobs than pricing does:

1. Quoting without a site visit. A phone quote for a blocked drain is a guess. The customer compares your guess to a competitor's inspected quote, and the competitor wins on confidence, not price.
2. Slow turnaround. If the quote takes three days after the site visit, the homeowner has already said yes to someone else. Same-day is the benchmark.
3. Vague line items. "Plumbing work, total" invites questions. "Replace 40L electric HWS with Rheem 315L electric, supply and install, remove and dispose of old unit, plumbing and electrical, 12-month workmanship warranty" closes them.
4. No licence number. A quote without a licence number looks unprofessional and, depending on your state, may not meet the advertising requirements.
5. No follow-up. The quote goes out and silence follows. Most customers are comparing two or three quotes. A short, helpful follow-up within a couple of days keeps you in the conversation.