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"Competitive price, efficient service, excellent clean up after completion"
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Best St Marys plumbers near you
Word of Mouth plumbers in St Marys receive an average rating of 4.9 based off 219 reviews.
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"I have found Jack to be honest, reliable and good at what he does. I have used him for drainage issues both at my..."
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"During our kitchen renovation, we needed the main gas line capped and completely relocated for the new island bench..."
"I had a blocked sewer pipe, called a plumber in Wollongong, who arrived, stated he had cleared the blockage using a..."
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"We used this plumber and found him to be nothing but totally professional. He supplied and installed a hot water..."
"Jonathan was always prompt, polite and on time. He quoted a price and did the job well and efficiently. I would..."
"Robert was very helpful and knowledgeable....He was on time and is a great worker.I would recommend him to anyone who..."
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"Chris came when i had my bathroom renovated. The installation that he did for me was faultless, we haven't had to..."
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"Chris is plumber who will travel to you, comes on time, rings if held up at last job, does a good job. He charges..."
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"This is quite a good plumber who knows what to do in any given situation. They turn up on time which is good and they..."
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"Simon Manning has done a few jobs for me over the last couple of years and there's no way I'd look elsewhere for a..."
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"Plumber arrived very promptly to install a new tap. Very friendly and efficient. Very reasonable rates. Have..."
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"Showed up and delivered exactly what needed "
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"We have used Kookaburra a few times for different jobs. The service & response is quick and the charges are very..."
Showing 20 of 21 businesses
Insights for plumbers servicing St Marys
In total, 1008 jobs have recently been posted for plumbers on the Word of Mouth jobs marketplace. Across Word of Mouth, the average quote response time for plumbers is 47.6 hours. Quotes sent back through the marketplace average $574 for a fixed-price job, and $308.00 an hour where the work is quoted hourly. These are quotes, not final invoices. For what customers reported paying, see the cost breakdown below.
46 plumbers have submitted licence details, which our support team has manually verified. These were accurate at the time of submission, but we recommend checking official registers to confirm they continue to remain valid before hiring any business.
Market Intelligence
Plumbers servicing St Marys
Data-driven insights based on 219 customer reviews collected between 2009 and 2026, ABS Census data, and 1 trust signal responses
St Marys is one of the more affordable areas for plumbers — 60% below the NSW average. 21 plumbers service the area with 219 customer reviews.
Demand patterns
Demand for plumbers in St Marys peaks around September and drops to its quietest in December based on review patterns — something to factor in if your job is flexible on dates.
What locals say
Over the 2009–2026 window, plumbers in St Marys have moved from 4.3/5 to 5.0/5 — genuine improvement in customer-reported quality. Review activity here is higher than typical: St Marys averages 12.9 new plumber reviews a year — 19% above the NSW average — a larger sample than most suburbs in the state.
Based on 219 customer reviews collected on Word of Mouth between 2009–2026, and ABS Census 2021 data.
Plumber reviews & ratings over time — St Marys area
See the figures behind this chart
| Year | Reviews | Average rating out of 5 | Median reported cost |
|---|---|---|---|
| 2009 | 5 | 4.4 | no prices reported |
| 2010 | 9 | 4.8 | no prices reported |
| 2011 | 3 | 4.3 | no prices reported |
| 2012 | 1 | 1.0 | no prices reported |
| 2013 | 3 | 5.0 | no prices reported |
| 2014 | 5 | 5.0 | no prices reported |
| 2016 | 21 | 5.0 | $320 |
| 2017 | 48 | 4.9 | $215 |
| 2018 | 29 | 4.9 | $225 |
| 2019 | 14 | 4.9 | $250 |
| 2020 | 12 | 4.8 | $200 |
| 2021 | 11 | 5.0 | $600 |
| 2022 | 8 | 5.0 | $500 |
| 2023 | 4 | 5.0 | $2,100 |
| 2024 | 6 | 5.0 | $300 |
| 2025 | 39 | 5.0 | $200 |
| 2026 | 1 | 5.0 | no prices reported |
Based on Word of Mouth reviews 2009–2026
Based on customer-reported prices. Outliers removed.
St Marys area profile ABS Census 2021
How we calculate the Local Service Score: We combine two sources of data: first-party data collected directly by Word of Mouth — customer reviews, customer-reported pricing, post-service trust-signal responses, and service awards — with suburb-level population and housing data from the Australian Bureau of Statistics 2021 Census. The score measures how well St Marys is served for plumbers, reflecting the depth of choice, quality of service, and value for money available to residents compared to other suburbs across Australia. See our Local Service Score methodology for data sources, update frequency, and quality guardrails.
What you can check before you call
Licences, where they’ve got them
Trade licences shown on the listing when the business has supplied them, with the licence number.
What other customers paid
Where enough customers have reported it, the listing shows the typical price range for the job they reviewed.
Reviews going back to 2007
Australians have been reviewing local businesses here since 2007. How we handle reviews, disputes and removals is set out in our Fair Play Policy.
Find the right price for your job
Browse our comprehensive cost guides to find the average national price for your job.
How Much Does a Plumber Cost?
Average hourly rate $100 - $150
How Much Does it Cost to Fix a Blocked Drain?
Average cost $75 - $500
How Much Does it Cost to Replace a Toilet?
Average price $200 - $500
How Much Does a Home Water Filtration System Cost in Australia in 2026?
A system-by-system guide to 2026 prices for jugs, under-sink, RO, UV, whole-house, softeners, and tank/bore filtration. Including who actually needs filtration and what to look for on the WaterMark sticker.
More plumbers near you
Plumbers in St Marys — FAQs
When should I book a plumber for the best availability?
Based on historical review patterns on Word of Mouth, plumber demand in St Marys tends to peak in September and is quietest in December. Booking during quieter months may mean more providers available and faster response times.
How do I find a good plumber in St Marys?
Start by comparing customer reviews — St Marys has 219 plumber reviews on Word of Mouth. Rhino Plumbing and Drainage (2025) and GPS Gas Plumbing Services (2025) have earned a Word of Mouth Service Award — an award that recognises consistently high customer ratings over a calendar year.
How well-rated are plumbers in St Marys?
Plumbers in St Marys have an average rating of 4.9 out of 5 stars, based on 219 customer reviews on Word of Mouth.