4.9 star rating / Over 69 Reviews
STS Plumbing has been proudly serving the Mosman community for years, offering a local plumbing service with a strong reputation for reliability, honesty, and quality workmanship.
From the historic homes along the slopes of Bradleys Head Road to the modern apartments near Military Road, we understand the unique plumbing needs that come with Mosman’s varied architecture and aging infrastructure. Whether you’re renovating a Federation-era home, upgrading plumbing in a new build, or responding to an urgent issue in a waterfront residence, our team has the local knowledge and experience to deliver the right solution.
We’re just around the corner—serving Mosman locals with fast response times, detailed quotes, and guaranteed plumbing work that meets the highest industry standards.
Looking for a plumber who really knows Mosman? You’ve found us.
Blocked drains are one of the most common (and frustrating) plumbing problems we see across Mosman. Whether it’s tree root intrusion from established gardens in Clifton Gardens or grease buildup in busy household kitchens near Spit Junction, STS Plumbing offers fast, non-invasive drain clearing services.
We use advanced CCTV drain inspection tools to accurately locate and diagnose the blockage, and high-pressure jet blasters to remove stubborn clogs without damaging your pipes. For persistent issues, we can also offer pipe relining – a trenchless, cost-effective solution that restores your drain pipes without digging up your yard or floorboards.
If your sinks are slow to drain or you’re dealing with unpleasant odours or backyard flooding, call our team today for an expert diagnosis and long-term fix.
We use advanced CCTV drain inspection tools to locate and diagnose blockages, and high-pressure jet blasters to clear clogs. For persistent issues, we offer pipe relining to restore pipes without excavation.
Q: What causes blocked drains in Mosman?
A: Common causes include tree roots, grease buildup, and foreign objects. Older pipes in heritage homes are also prone to collapse or cracks.
Q: Can you clear drains without digging?
A: Yes, we use jet blasting and pipe relining to clear and repair drains with minimal disruption.
Planning a bathroom renovation in Mosman? STS Plumbing specialises in high-end bathroom transformations that are compliant, efficient, and tailored to your lifestyle.
We partner with licensed builders, designers, and waterproofing professionals to deliver full-scope bathroom renovations. Our plumbers handle everything from relocating fixtures and installing new water-efficient tapware to upgrading old pipes hidden behind the walls. Whether you’re revitalising a dated apartment ensuite near Balmoral or creating a luxury spa-style retreat in a Federation home, we ensure every detail meets the highest standards.
Our process includes clear quoting, compliance certificates, and a dedicated project manager – so you’re never left guessing. Let us turn your vision into a stunning, functional bathroom you’ll love for years to come.
We understand Mosman’s unique mix of heritage and modern homes. Our team works with care to protect your property’s character while delivering a functional, beautiful bathroom.
Q: How long does a bathroom renovation take?
A: Most standard bathrooms take 2–3 weeks, depending on complexity and finishes.
Q: Can you help with fixture selection?
A: Yes, we can recommend suppliers and assist with orders.
Safety is non-negotiable when it comes to gas. STS Plumbing is fully licensed and insured to carry out all types of gas fitting in Mosman – from new installations to repairs and emergency gas leak detection.
Whether you’re connecting a new gas cooktop, switching from electric to gas hot water, or suspecting a leak after noticing a rotten egg smell or hissing near your appliances, we act fast and decisively. Our plumbers use sensitive detection equipment to pinpoint leaks, and we’ll isolate the issue before recommending a repair or full replacement – always keeping your budget and safety top of mind.
Living in an area with older homes like Mosman means aging gas pipework may be a hidden risk – don’t take chances. Call STS Plumbing for safe, compliant gas services today.
Older homes in Mosman often have aging gas pipes that can pose safety risks. We use sensitive detection equipment and follow strict safety protocols for all gas work.
Q: How do I know if I have a gas leak?
A: Signs include a rotten egg smell, hissing sounds, or high gas bills. If in doubt, turn off the supply and call us immediately.
Q: Do you install gas bayonets for BBQs?
A: Yes, we install safe, compliant bayonet fittings for outdoor kitchens and heaters.
Q: How do I know if I have a gas leak?
A: Signs include a rotten egg smell, hissing sounds, or high gas bills. If in doubt, turn off the supply and call us immediately.
Q: Do you install gas bayonets for BBQs?
A: Yes, we install safe, compliant bayonet fittings for outdoor kitchens and heaters.
STS Plumbing has been proudly serving Sydney’s Lower North Shore, including Mosman, for over 20 years. We’re a family-run plumbing company committed to honesty, integrity, and doing the job right the first time.
Our roots are local. We understand the unique plumbing needs of heritage homes in Mosman as well as the latest modern developments in Balmoral, Beauty Point and surrounding pockets. From stormwater upgrades to careful tapware replacements that suit period details, we bring craftsmanship and care to every job.
We don’t just fix plumbing—we build lasting relationships based on trust, respect and reliability.
Based just across the bridge, STS Plumbing has proudly served the Mosman community for over 20 years. From the leafy avenues of Spit Road to the harbourside homes on Balmoral Slopes, we know the unique plumbing challenges of Mosman properties—and how to fix them right, the first time.
We service all parts of Mosman, including:
STS Plumbing were incredibly respectful, tidy, and knowledgeable. The result is stunning, and everything works flawlessly.
Sarah M., Queen Street, Mosman
Our expert Sydney plumbers can be at your home or office in a jiffy to discuss your plumbing requirements.
CALL US TODAY
We are hyper local plumbers servicing Sydney's North Shore.
info@stsplumbing.com.au
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