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Plumber in Mosman

When you need a plumber you can count on in Mosman, STS Plumbing delivers expert solutions with friendly service. From emergency repairs to routine maintenance and new installations, our licensed plumbers are available 24/7 to keep your home or business flowing smoothly.

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Why Mosman Locals Trust STS Plumbing

Local Expertise

We understand Mosman’s unique plumbing infrastructure, including older heritage homes and modern developments, ensuring tailored solutions.

Licensed and Insured

Our plumbers hold all necessary licenses and insurance, giving you peace of mind.

Rapid Response

Plumbing emergencies don’t wait — neither do we. Our team is ready to assist you quickly and efficiently.

Transparent Pricing

No hidden fees or surprises; just honest, upfront quotes before any work begins.

Who We Work With...

STS Plumbing proudly serves a diverse range of clients in Mosman and the surrounding areas, including homeowners, property managers, commercial clients, builders, and real estate agents.

Homeowners

Whether you need routine maintenance, emergency repairs, or installations, we help keep your household plumbing in top condition.

Property Managers

We work closely with property management companies to ensure rental properties meet safety standards and are well-maintained.

Commercial Clients

From small shops to offices and hospitality venues, we provide efficient plumbing solutions tailored to your business needs.

Builders & Developers

Our team collaborates with construction professionals on new builds, renovations, and fit-outs to deliver reliable plumbing systems.

If you need a plumbing team that’s easy to work with, highly experienced, and deeply familiar with Mosman, we’re the crew to call.

Our Process:

How We Work With You

At STS Plumbing, we believe that a transparent, efficient process delivers the best outcomes for our Mosman clients. Here’s how we make every job seamless from start to finish:
At every stage, our focus is on clear communication, honest pricing and reliable workmanship — it’s why Mosman locals keep calling us back.
Step 1: Initial Contact
You reach out to us via phone, email, or our online booking form. Our friendly team gathers the necessary information about your plumbing concern or project.
We arrange a convenient time to assess the job. For most services, we provide a free, no-obligation quote upfront, so you know exactly what to expect—no surprises.
Once approved, we schedule the job at a time that suits you. We offer flexible booking and fast response for urgent situations.
Our experienced, licensed plumbers arrive on time, complete the work efficiently, and clean up after themselves—leaving your space as tidy as we found it.
We’re always here for follow-up questions or support. All our work is backed by guarantees for your peace of mind.

Plumbing Services in Mosman — Local, Reliable & Respectful of Your Home

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.

Give us a call — we’re ready to get your plumbing sorted.

Blocked Drains in Mosman

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.

  1. Inspection – We assess the blockage using CCTV cameras.
  2. Diagnosis – We explain the cause and recommend the best solution.
  3. Clearing – We use jet blasting or relining as needed.
  4. Prevention – We provide advice to help prevent future issues.
  • Fast, non-invasive solutions
  • Advanced technology for accurate diagnosis
  • Long-term fixes, not just quick patches
  • Respect for your home and property

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.

Plumber Longueville

Common Drain Issues We Fix

  • Tree root intrusion
  • Grease and food buildup
  • Foreign objects in pipes
  • Collapsed or cracked pipes
  • Recurring blockages
Plumber Pymble

What We Do

  • Full bathroom design and renovation
  • Demolition and removal of old fittings
  • Plumbing layout changes and upgrades
  • Waterproofing (licensed and insured)
  • Tiling, fixtures, and custom vanities
  • Lighting, ventilation, and underfloor heating
  • Shower screen and mirror installation
  • Final fit-off and testing

Bathroom Renovations in Mosman

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.

  1. Consultation & Quote – We discuss your vision and provide a detailed quote.
  2. Design & Planning – We help select fixtures and plan the layout.
  3. Renovation – We handle demolition, plumbing, waterproofing, and installation.
  4. Completion – We finish with a thorough clean and compliance certificates.
  • Licensed for plumbing, waterproofing, and renovations
  • Heritage home experience
  • Transparent contracts and timelines
  • Attention to detail and high-end finishes

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.

Gas Fitting & Gas Leak Detection in Mosman

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.

  1. Assessment – We inspect your gas system and discuss your needs.
  2. Quote – We provide a clear, upfront quote for installation or repair.
  3. Work – All gas work is performed by licensed professionals.
  4. Testing – We pressure test and certify all installations.
  • Fully licensed and insured gas fitters
  • Fast response for emergencies
  • Transparent pricing
  • Workmanship guarantee

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.

Plumber Gladesville

Gas Services We Offer

  • New gas line installations
  • Gas appliance installation and certification
  • Leak detection and pressure testing
  • Gas meter upgrades and conversions
  • Emergency gas repairs
  • Bayonet fittings for BBQs and heaters

Recent Plumbing Work in Mosman

STS Plumbing is no stranger to Mosman. We’re regularly working in the area — from heritage homes on Queen Street to modern apartments near Military Road. Recent jobs include a bathroom renovation in a Federation home, emergency burst pipe repairs, and gas line upgrades for a new kitchen installation.
Plumber Lindfield
Plumber Longueville
Plumber Longueville

What Mosman Locals Are Saying

We’re proud to be the trusted local plumber for families, property managers, and businesses across Mosman. Here’s what a few of our recent clients had to say:

Our Workmanship Guarantee

At STS Plumbing, we believe peace of mind should come standard. That’s why every service we provide in Mosman is backed by our workmanship guarantee, transparent pricing, and respect for your home.
If something’s not quite right, we’ll come back and make it right. That’s our promise to every client — and why so many locals recommend us.

About STS Plumbing

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.

Fully Licensed. Fully Qualified. Fully Trusted.

When you choose STS Plumbing in Mosman, you're partnering with a team of fully licensed, insured, and highly qualified professionals.
Your peace of mind is backed by genuine expertise and a rock-solid commitment to professional excellence.

Local Plumbing Services Beyond Mosman

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:

Balmoral, Beauty Point, Clifton Gardens, Georges Heights, The Spit, Spit Junction, Middle Head, and surrounding Lower North Shore suburbs.
Need a plumber nearby? Get in touch to check if we’re already working in your area — chances are, we are.

Frequently Asked Questions

Yes, we provide 24/7 emergency plumbing services across Mosman to quickly address urgent issues like burst pipes, blocked drains, or water leaks.
Absolutely. All our plumbers are fully licensed, qualified, and insured, ensuring professional and reliable service for every job.
Yes, we have extensive experience working with heritage and older properties in Mosman, offering tailored solutions to preserve the integrity of your home while upgrading plumbing systems.
We service the entire Mosman area including Balmoral, Beauty Point, Clifton Gardens, Georges Heights, and surrounding suburbs.
We provide upfront, transparent quotes with no hidden fees. After assessing the job, we explain the costs clearly before starting any work.
Yes, our licensed gas fitters provide safe installation, repairs, and emergency leak detection for all types of gas systems in Mosman.
We do. Pipe relining is a no-dig solution for repairing cracked or blocked pipes, ideal for Mosman’s heritage homes and landscaped properties.
Always. We wear boot covers, use drop sheets, and ensure your home is left neat and tidy when we finish.

Case Study:

Reviving an Old Mosman Home’s Plumbing System with Expert Care

The Problem

The owners of a charming heritage home in Mosman were concerned about frequent leaks and outdated plumbing that risked damaging their beautiful property. Old pipes were prone to corrosion and inefficient fixtures caused water wastage.

Our Solution

We conducted a thorough inspection, identified the problem areas, and carefully planned a comprehensive plumbing upgrade. Using high-quality materials and minimally invasive techniques, we replaced old piping, installed water-efficient fixtures, and repaired minor leaks to restore full functionality.

The Outcome

The homeowners were thrilled with the results: a reliable, eco-friendly plumbing system that respects the historic nature of their Mosman home. They appreciated our transparent communication, punctual service, and expert craftsmanship.

STS Plumbing were incredibly respectful, tidy, and knowledgeable. The result is stunning, and everything works flawlessly.

Book a Trusted Plumber in Mosman Today

Ready for reliable, expert plumbing services in Mosman?

Whether you’re facing an emergency, planning a renovation, or need routine maintenance, our licensed plumbers are here to help. Contact STS Plumbing today for fast, friendly service you can trust. Call now or book online to experience plumbing excellence in Mosman!

Need a Local Plumber?

Our expert Sydney plumbers can be at your home or office in a jiffy to discuss your plumbing requirements.

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