Water, Sewer & Civil Done Right.
K3 Plumbing Services delivers main to meter connections, sewer works, water main upgrades and more for commercial, industrial and government clients — with a safety-first approach and end-to-end project management.
- ISO certified QA, Environmental & Safety
- Licensed traffic control
- Newcastle to the Southern Highlands
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Specialist water & sewer infrastructure
From a single main to meter connection to major public domain works, we handle approvals, construction and certification under one roof.
01Main to Meter Connections
Reliable water connections from Sydney Water mains to residential, commercial and industrial properties.
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02Section 73 Certificates
Expert handling of Sydney Water approvals to streamline your property development.
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03Fire Service Installation
Fire hydrants, hose reels and booster assemblies installed to meet safety standards.
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04Service Protection Reports
Sewer peg-outs and asset locating to protect Sydney Water infrastructure before you dig.
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05Sewer Encasement & Sidelines
Encasements, diversions, sidelines and repairs built for long-term durability.
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06Water Main Extensions & Upgrades
New and upgraded water mains to increase capacity and supply reliability.
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07Stormwater Upgrades
Drainage and retention solutions that manage stormwater and prevent flooding.
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08Public Domain Works
Council and Sydney Water compliant infrastructure, road and footpath works.
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09Sewer Junction Cut-Ins
Precision cut-ins and new junctions for property sewer connections.
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10Traffic Planning, Control & Management
Traffic control plans, licensed traffic controllers and site set-up to keep crews and the public safe.
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An established team you can put on any site
K3 Plumbing Services specialises in commercial and industrial plumbing work, both for new developments and for renovations to existing buildings and services.
Our team of professional plumbers is our biggest asset. We invest in continual training in workplace safety and the use of our equipment, so every job is delivered efficiently and to the highest quality. Through a large base of commercial, industrial and government clients, we’ve built a reputation for quality service, excellent workmanship and real value for money.
From approval to handover
Water and sewer projects need precision and careful coordination. Our structured approach keeps every job compliant and on schedule.
Consultation & Planning
We assess requirements, review site conditions and advise on approvals and compliance.
Approvals & Permits
We manage Sydney Water and council approvals and permits, streamlining the process for you.
Project Execution
Safe, high-quality works delivered efficiently with minimal disruption to your site and the public.
Compliance & Handover
Thorough inspection, testing and documentation to meet regulatory standards before handover.
Safety and service, always our priority
Choosing K3 means partnering with a trusted team committed to quality, safety and reliability on every job.
Sydney Water Accredited
We meet all regulatory standards for water and sewer projects.
End-to-End Management
From planning and approvals to execution and certification.
Cost-Effective
Competitive pricing without compromising on quality or compliance.
Safety-First Approach
A secure work environment for our team and the public, every day.
Working across the Sydney basin
We service the greater Sydney region — from Newcastle and the Central Coast in the north, to the Southern Highlands in the south and the Blue Mountains in the west.
- Newcastle
- Central Coast
- Sydney Metro
- Western Sydney
- Blue Mountains
- Wollongong
- Southern Highlands
Got a water or sewer job coming up?
Talk to a Sydney Water accredited team about scope, approvals and timing.