To choose the right plumber in Sydney, run seven checks before any work starts. Confirm their NSW licence on Service NSW, make sure it covers your type of work, ask for proof of insurance, read recent reviews, match their skills and equipment to your job, get an itemised written quote, and confirm the warranty in writing. A plumber who passes all seven is licensed, accountable and has put the price in writing.
At Solus Plumbing, our Sydney plumbers hold a 4.9-star average across verified Google reviews, and a common reason people call us is to fix a job someone else started. The first plumber was often unlicensed for the work, or never put the price and scope in writing. This guide covers the checks we’d run if we were hiring a plumber for our own homes, with Sydney-specific advice on licences, quotes, older pipes and who pays for sewer repairs.
Sydney plumber checklist at a glance
| Check | What to do | Why it matters |
| 1. Licence | Look up the licence number on Service NSW | Unlicensed work is illegal and can void insurance |
| 2. Licence class | Confirm it covers plumbing, drainage or gasfitting as needed | Gas and drainage work need their own authorisation |
| 3. Insurance | Ask for a public liability certificate | Covers damage to your property during the job |
| 4. Reviews | Read recent Google reviews for detail and patterns | Shows reliability, communication and follow-up |
| 5. Right skills | Ask about CCTV, leak detection or relining gear | Specialist jobs need specialist equipment |
| 6. Written quote | Get an itemised price for the same scope from each plumber | Lets you compare fairly and avoid surprise extras |
| 7. Warranty | Get workmanship and parts cover in writing | Means fixes are free if the work fails |
How do you check if a plumber is licensed in NSW?
You can check a plumber’s licence online using the Service NSW tool to check a tradesperson licence. You can search by the plumber’s name, licence number, ABN, ACN or suburb and postcode, then confirm the licence details match the person or business quoting your job.
Every plumber, drainer and gasfitter in NSW must be licensed for the work they do, whatever the job costs. The NSW Government’s plumbing licence rules set fines of up to $22,000 for individuals and $110,000 for companies doing unlicensed plumbing, draining or gasfitting work.
What do the different NSW plumbing licences mean?
NSW issues three main levels of plumbing licence. Each one allows a different amount of responsibility.
| Licence type | What the holder can do | Can they contract with you directly? |
| Tradesperson certificate | Do plumbing work under supervision | No |
| Qualified supervisor certificate | Work unsupervised and supervise others | No |
| Contractor licence (individual or company) | Quote, contract and carry out the work | Yes |
The plumber or business you sign a contract with should hold a contractor licence. It’s normal for a qualified tradesperson on their team to do the hands-on work, as long as the business holds the contractor licence.
Does the licence cover your type of work?
A plumbing licence doesn’t automatically cover gas or drainage. Ask which classes of work the licence covers, and match them to your job:
- Water supply work covers taps, toilets, pipes and electric hot water.
- Drainage work covers sewer and stormwater lines, which matters for blocked drains and relining.
- Gasfitting is required for any gas appliance, including gas hot water systems, cooktops and heaters.
Unlicensed gas work is illegal and a real safety risk. If your job involves gas fitting, ask to see the gasfitting authorisation before the plumber starts.
What insurance and warranty should a Sydney plumber have?
A Sydney plumber should carry public liability insurance and give you a written warranty on both workmanship and parts. Ask for the insurance certificate before work starts, and check the policy is current.
NSW law doesn’t set a minimum public liability amount for plumbers. A common benchmark is at least $10 million in cover, and any plumbing business with employees should also hold workers compensation insurance. If a plumber can’t show you a certificate, treat it as a warning sign.
Written warranties from plumbers typically run from 1 to 7 years, depending on the job and the parts used. Separately, NSW law gives homeowners statutory warranties on residential building work of six years for major defects and two years for other defects. Our own approach at Solus Plumbing is a 12-month workmanship warranty on repairs and five years on new installations, with no call-out fee if we have to come back.
How do you check a plumber’s reviews and reputation?
Read recent Google reviews and focus on the detail in the written comments. A plumber with steady reviews over several years, from customers describing specific jobs, is usually a safer bet than one with a handful of perfect scores.
The ACCC’s guide to spotting fake reviews lists several warning signs:
- A sudden spike of five-star reviews over a short period
- Reviewers with similar names
- Reviews written in the same language or style
- Generic praise with no detail about the job
When we read reviews for trades ourselves, we look for mentions of turning up on time, explaining the problem clearly, a final bill that matched the quote, and how the business handled a callback. Those details tell you more than the rating. For bigger jobs, it’s also fair to ask the plumber for references or photos of similar work. We’d also suggest reading a business’s lower-rated reviews, because the owner’s response shows how problems get handled.
Does the plumber have the right skills for your job?
Blocked sewers, hidden leaks and gas appliances each need different licences and equipment. Ask each plumber how often they do your type of job, and what equipment they’ll bring.
| Your problem | What to ask the plumber | What a good answer sounds like |
| Recurring blocked drain | Do you do CCTV drain camera inspections? | Yes, and we’ll show you the footage before quoting a repair |
| Hidden or slab leak | What leak detection equipment do you use? | Acoustic listening, thermal imaging or tracer gas |
| Cracked or root-damaged sewer | Do you offer pipe relining? | Yes, after a camera survey confirms where the damage is |
| Gas hot water system | Do you hold a gasfitting licence? | Yes, and here’s the licence number |
| Burst pipe or sewage overflow | Do you offer 24/7 emergency service? | Yes, with after-hours rates quoted upfront |
Choosing a plumber for blocked drains and sewer problems
For blocked drains that keep coming back, look for a plumber who uses a CCTV drain camera. A camera shows tree-root intrusion, cracked joints or a collapsed section before anyone starts digging. Without it, you can end up paying to clear the same blockage several times.
If the camera finds damage, pipe relining can repair the pipe from the inside without trenching the yard. Only plumbers with relining equipment and training should quote for this work.
Choosing a plumber for hot water, leaks and emergencies
For hot water systems, confirm the plumber can handle the whole install, including any gas connection and compliance work. For burst and leaking pipes behind walls or under slabs, ask about leak detection gear. Plumbers who use it can often find the leak without opening up large sections of wall or floor.
For emergencies, check that the plumber will attend in the middle of the night, not just take a message. Ask what the after-hours call-out fee and hourly rate are before you book, because emergency rates commonly run 50 to 100 percent above standard rates.
How many quotes should you get, and what should they include?
Get two or three written quotes for any job worth more than a few hundred dollars. For a small tap repair, one clear fixed price from a licensed plumber is usually enough, because chasing quotes can cost more in time than it saves.
A good quote is itemised and lists:
- The plumber’s licence number
- The call-out or diagnostic fee
- Labour, as a fixed price or hourly rate
- Parts and materials
- Equipment hire and waste disposal, if needed
- Any compliance certificate
- After-hours surcharges
- GST and payment terms
- Warranty terms
Make sure each plumber is quoting the same scope. Two quotes that look far apart are often quoting different jobs. One might be clearing a drain. Another might be clearing it, filming the line and reporting on the cause.
Fixed price or hourly rate?
| Pricing model | Best for | Watch out for |
| Fixed price | Defined jobs like a hot water swap, drain clear or tap replacement | Check exactly what’s included so extras aren’t added later |
| Hourly rate | Diagnostic or open-ended work like leak tracing | Ask for an estimate or cap, and whether travel time is billed |
We price most repairs as a fixed job at Solus Plumbing, agreed on site before work starts. Where a fault needs tracing first, we charge a $99 diagnostic fee and credit it back against the repair. For typical Sydney rates and job prices, our guide to plumber costs in NSW has a full price list.
When do you need a written contract in NSW?
NSW law requires a written contract for residential building work over $5,000 including GST. For those jobs, the plumber can’t ask for a deposit of more than 10 percent. Contracts over $20,000 carry extra requirements, including home building compensation insurance.
Most plumbing repairs sit well under $5,000. Larger sewer replacements, relining and bathroom rough-ins can go over it, so check that the paperwork is right before you pay anything.
What paperwork should you get after the job?
At the end of plumbing and drainage work in NSW, your plumber must complete a Certificate of Compliance and give a copy to whoever arranged the work. Plumbers must also submit a Notice of Work before starting, and drainage work in regulated areas needs a Sewer Service Diagram at completion. The NSW Government’s guide to plumbing inspection documents explains which jobs need which forms.
Keep these documents with your home records. You’ll need them if you sell the property, make an insurance claim or have a warranty issue. A quote that comes in far below the others sometimes leaves this paperwork out, so ask about it upfront.
What should you know about plumbing in Sydney homes?
Sydney plumbers deal with a wide mix of housing, from Federation terraces to new apartment towers. That mix affects which plumber is the best fit for your property.
Choosing a plumber for an older Sydney home
Many older Sydney homes still have their original clay or cast-iron drains. Clay pipes crack and let tree roots in at the joints, and cast iron corrodes over time. If you live in an established suburb in the Inner West, the North Shore or the Eastern Suburbs, choose a plumber who regularly works on older pipework. They’re more likely to spot early warning signs and suggest trenchless repairs where they suit.
Who pays for sewer repairs in Sydney?
In most cases, the homeowner pays for repairs to the private sewer pipe on their property. Sydney Water’s guidance on responsibility for repairs says the owner is responsible for their connection to the wastewater system, while Sydney Water owns the junction and handles connection points deeper than 2.5 metres.
A good Sydney plumber will locate the fault with a camera or locator before any repair starts. That way, you don’t pay to fix a pipe that belongs to Sydney Water. If sewage is overflowing from a public maintenance hole or affecting several properties, contact Sydney Water directly.
Choosing a plumber for apartments and strata buildings
In apartments and townhouses, check whether the problem sits in your lot or in common property before booking. Strata usually handles common pipework, and many buildings have rules about access times and contractor insurance. A plumber who works in strata buildings regularly will know to ask for this upfront. Narrow terraces with rear-lane access also need planning, especially for excavation or equipment like jetters.
What are the red flags when hiring a plumber in Sydney?
Walk away, or at least slow down, if you notice any of these:
- No licence number, or a licence that doesn’t match the name or ABN on the quote
- No gasfitting authorisation for gas work
- No proof of public liability insurance
- Cash-only payment with no written quote or invoice
- A quote far lower than every other quote, with no clear explanation
- Pressure to decide on the spot
- A deposit request above 10 percent on a job over $5,000
- Reluctance to provide a Certificate of Compliance
- Reviews that all appeared in the same few weeks
In our experience, the cheapest quote on paper often becomes the most expensive job. The shortfall usually shows up later as missing compliance work, the wrong parts or a repeat callout.
Frequently asked questions
Can a plumber in NSW do gas work without a gas licence?
No. Any gasfitting work in NSW, including connecting a gas hot water system or cooktop, must be done by someone licensed for gasfitting. Ask for the licence number and confirm it covers gasfitting before the job starts.
Is it worth paying more for a local Sydney plumber?
Often, yes. A plumber based near you usually charges less travel and can arrive faster. Plumbers who work in your area also know the local pipe types, which matters in older suburbs with clay sewers.
Should I pay a deposit to a plumber?
For most repairs, you shouldn’t need to pay upfront. For residential work over $5,000 in NSW, a plumber can’t ask for more than a 10 percent deposit.
How do I know if an emergency plumber is legitimate?
Ask for the licence number over the phone and check it on Service NSW before they arrive. A legitimate emergency plumber will also tell you the after-hours call-out fee and hourly rate before attending.
What if I’m not happy with a plumber’s work in Sydney?
Contact the plumber first and give them a chance to fix it under warranty. If that doesn’t resolve it, Building Commission NSW runs a free dispute resolution service that covers plumbing and gasfitting work.
Is choosing a plumber different in other states?
Yes. Licensing, insurance and compliance rules vary by state. If you’re comparing, our guide to choosing a plumber in Melbourne covers the Victorian rules.
Find a licensed plumber in Sydney
The right plumber in Sydney is licensed for your type of work, insured, well reviewed, equipped for the job and willing to put the price and warranty in writing. Run those seven checks on every plumber you shortlist, and you’ll avoid most of the problems we’re called in to fix.
If you’d like to skip the shortlist, our Sydney plumbers cover the CBD, Parramatta, Blacktown, Ryde, Liverpool, Penrith and surrounding suburbs 24 hours a day, seven days a week. We reach most jobs within the hour, agree a fixed price before we start, and back repairs with a 12-month workmanship warranty. Call Solus Plumbing on 1300 730 896 or request a quote.
