Mosman and the harbour side
Plumber in Mosman
STS started in Mosman in 2007. Sewers, drains, roofs and hot water across the peninsula, more than 2,700 jobs since 2016.
- Since 2007 on the North Shore
- Upfront pricing, agreed before we start
- Our own licenced team, not subbies
What we get called out to in Mosman
- Sewer lines. More than 650 sewer and stormwater repairs here since 2016.
- Blocked drains. More than 700 cleared since 2016, many of them roots.
- Roofs near the harbour. Salt air is hard on gutters, valleys and flashings.
- Hot water and gas. Around 300 hot water jobs, plus gas cooktops and heaters.
Mosman is where STS began, and it is still the suburb we do the most work in.
Emergency plumber in Mosman
A burst pipe, a blocked toilet, no hot water or water coming through the ceiling? Ring 9904 3074 rather than using the form. Most urgent jobs in Mosman get a plumber the same day, and we tell you on the phone what to turn off in the meantime.
Office hours are Monday to Friday, 7am to 5pm. After-hours work can be arranged for a fee.
In more detail
The three we get called about most
Sewer repairs
Many Mosman homes are Federation and interwar houses still on their original earthenware sewer, and on a steep block the line can be long and deep.
We have seen most of what can go wrong with them. We camera first, then reline, repair or replace only the section that has failed.
Sewer repairsPipe relining
Mosman gardens, sandstone walls and driveways are worth protecting, and a trench through them is expensive to put back.
Relining seals a cracked or root-damaged line from the inside through an existing opening, so most of the time nothing above ground is disturbed.
Pipe reliningRoofing
Close to the harbour, salt air works on gutters, flashings and valleys faster than it does inland, and a storm off the water finds every weak point.
We have done more than 300 roof and gutter jobs in Mosman since 2016, from a single flashing to full gutter replacements.
Roofing and guttersIt’s an emergency! I’d better ring STS.
Old fashioned service. Modern day plumbing.
Since 2007
How we work with you
What happens from the first phone call
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You get in touch
Ring, email or send the form. For anything urgent, ring.
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We come and look
We look at the job properly and talk you through it.
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You get the price in writing
The job priced, not an hourly rate, before we start.
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We do the work
Our own licenced plumbers, on the day we said, and tidy.
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You see what we found
Photos or camera footage, and a plain explanation.
A typical job here
Bringing an old Mosman home's plumbing up to date
The problem
An interwar Mosman house had low pressure, a sewer that blocked every winter and stormwater running under the house in heavy rain.
What we did
We replaced the corroded galvanised water service in copper, relined the root-damaged sewer, and connected the downpipes to a stormwater line that carries water away from the house.
The result
Good pressure, a sewer that stays clear and a dry subfloor, done as one planned job instead of three emergencies.
Another Mosman job
A Mosman roof leak above a bathroom
The problem
Water was coming in over a downstairs bathroom and bedroom, under a flat roof that had been waterproofed and covered in pebbles.
What we did
A hose test and a hole in the ceiling showed daylight through the roof and soaked timber underneath. The box gutter above was overflowing because its downpipe was blocked with pebbles. We jetted the line, fitted a new downpipe and outlet, then lifted the pebbles and drainage layer to get back to the failed waterproofing and prepare it for new.
The result
The water now leaves the roof the way it should, and the waterproofing was dealt with at the source rather than patched from inside.
From our job photos
Recent work around Mosman
Out of the van
What the work actually looks like
Our photos, off our own jobs. Not a stock library.
Not a claim, a count
The work we have actually done in Mosman
Our job records run from 2016. Since then we have completed more than 2,750 jobs in Mosman.
That is the figure out of our job management system, not a number we made up for the website. It is also why we can usually tell you on the phone what a problem probably is before anyone gets in a ute.
The most common of them
- 1,319 taps, toilets and everyday repairs
- 753 blocked drains cleared
- 670 sewer and stormwater repairs
- 304 roofing and guttering
- 295 hot water repairs and replacements
Plenty of jobs cover more than one of these, so the numbers overlap rather than add up.
About the suburb
Plumbing in Mosman
Mosman covers the peninsula between Middle Harbour and Sydney Harbour, with Military Road and the shops at Spit Junction and Mosman Junction along its spine. Away from the main road the streets fall steeply to the bays, lined with Federation and interwar houses, newer homes and plenty of apartment blocks.
STS started here in 2007, and Mosman remains our busiest suburb by a long way. Our records since 2016 include more than 700 blocked drains, more than 650 sewer and stormwater repairs, and around 300 each of roofing and hot water jobs.
Old pipes, steep blocks, big trees and salt air are behind most Mosman call-outs. Knowing which streets have which problems is what this much local work gives you.
For Mosman homes, read how sewer pipe relining works, what a back tray does for your roof and camphor laurels and sewer lines.
The STS Guarantee
Five things we promise on every job
- Licenced and insured. Plumbing, gas fitting and drainage, to the Australian Standards. NSW licence 227192C.
- You get the price before we start. Agreed upfront and in writing. No hourly rate ticking over while you wonder what it is going to come to.
- We turn up when we said we would. And if we are running behind, you get a phone call rather than silence.
- We clean up after ourselves. Drop sheets down, mess taken away, and the ground or brickwork put back the way we found it.
- Our workmanship is warranted. If something is not right after we have left, ring us and we will come back and put it right at our cost.
Who we work for in Mosman
- Homeowners. From a leaking tap to a full bathroom.
- Strata and building managers. With photos and a written finding.
- Builders and renovators. Booked to your programme.
- Agents and landlords. Organised with the tenant, reported to you.
What Mosman locals say
STS Plumbing were incredibly respectful, tidy, and knowledgeable. The result is stunning, and everything works flawlessly.
Homeowner, MosmanQuestions we get asked in Mosman
Did STS really start in Mosman?
Yes. STS started in Mosman in 2007 and was based there until 2010, then in Crows Nest, then Lane Cove from 2016. Mosman is still the suburb we do the most work in.
What does a plumber in Mosman cost?
We price the job, not an hourly rate. You get the price in writing before we start.
Are your plumbers licenced and insured?
Yes. STS Plumbing Co Pty Ltd holds NSW licence 227192C and is insured, and the plumbers who turn up are our own team.
How quickly can you get here?
The office is open Monday to Friday, 7am to 5pm, and we call back within 24 hours, guaranteed. For anything urgent, ring rather than use the form.
Do you warrant your work?
Yes. If something is not right after we leave, we come back and put it right at our cost. That is part of the STS Guarantee above.
Where we work around Mosman
We cover all of Mosman, from the shops on Military Road down to the harbour bays, plus Cremorne and Neutral Bay next door. We also cover Balmoral, Beauty Point and Clifton Gardens.
Need a plumber in Mosman?
Ring us for anything urgent. For a bathroom, a roof or a sewer repair, ask us to come and look first.
Office hours: Monday to Friday, 7am to 5pm.