Plumbing Design & Installation in Illawarra
Complete plumbing design and installation for new builds, renovations and extensions across Wollongong, Kiama, Shellharbour and the greater Illawarra region. From hydraulic plans to final compliance certification — one plumber, start to finish.
Plumbing design and installation covers the complete plumbing scope for new homes, renovations, extensions and commercial fit-outs — from initial design and council compliance through to rough-in, fit-off and final handover. The design phase includes hydraulic layout for water supply, hot and cold distribution, drainage (sewer and stormwater), gas pipework and fixture positioning — all compliant with AS/NZS 3500 and local council requirements for Wollongong, Kiama and Shellharbour LGAs. Rough-in (first fix) installs all concealed pipework — water supply, drainage, gas and venting — before walls and floors are closed in. Fit-off (second fix) connects all visible fixtures including taps, toilets, basins, showers, baths, dishwashers, washing machines, hot water systems and gas appliances. In Illawarra, new home plumbing typically costs $15,000-$40,000 for a standard 3-4 bedroom house. Bathroom renovations with full re-plumb cost $3,000-$8,000 for plumbing. Kitchen plumbing for renovations costs $2,000-$5,000. Extensions with new wet areas cost $5,000-$15,000. Final testing, pressure testing, drain testing, commissioning of all systems and compliance certification completes the process, ensuring your plumbing meets all Australian Standards and is ready for occupation.
Design & Installation Services
Plumbing Design & Plans
Hydraulic design for water supply, drainage, gas and stormwater. Council-compliant plans for new builds, renovations and extensions. Coordinate with architects and builders.
Rough-In (First Fix)
All concealed pipework installed before walls and floors close in — water supply, drainage, venting, gas and overflow lines. Positioned precisely to plans for every fixture.
Fit-Off (Second Fix)
Connect all fixtures — taps, toilets, basins, showers, baths, dishwashers, washing machines, hot water systems and gas appliances. Everything tested and commissioned.
Hot Water System Selection
Design the right hot water solution for your project — electric, gas, solar or heat pump. Correctly sized for occupancy, positioned for efficiency and code-compliant.
Drainage & Stormwater
Design and install complete drainage systems — sewer connections, stormwater from roof to council system, ag drains, pits and correct grading for long-term performance.
Testing & Certification
Pressure testing, drain testing, gas testing and final commissioning. Compliance certificates issued for council final inspection. Everything documented and warranted.
How We Work
Design & Quote
Review your plans, design the hydraulic layout, coordinate with your builder and provide a detailed fixed-price quote.
Rough-In
Install all concealed pipework — water, drainage, gas, venting — before walls and floors are closed in. Inspection ready.
Fit-Off
Connect all fixtures, appliances and hot water systems. Commission and test every connection for performance and leaks.
Certify & Handover
Final testing, compliance certificates for council, walk-through with you to explain systems, and full warranty documentation.
New Build Plumbing Across Illawarra
Plumber Wollongong
Plumber Kiama
Plumber Shellharbour
Plumber Dapto
Plumber Albion Park
Plumber Bulli
Plumber Corrimal
Plumber Figtree
Building or Renovating?
One plumber from design through to certification. Call for a detailed quote.
0411 360 263Design & Installation Questions
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Why Choose Us?
- One plumber, start to finish
- Design to certification
- Builder coordination
- Council compliance
- All pipe & fixture types
- Upfront fixed pricing
What this work costs
Published 2026 labour and call-out ranges for regional NSW. Roof, gutter and stormwater work is quoted per site because access and height do most of the work.
| Job | Typical range | What affects it |
|---|---|---|
| Standard hourly rate | $90 – $150 | Regional NSW. Sydney metro runs higher, to around $200. |
| After-hours & emergency hourly rate | $180 – $350 | Typically 30–50% above standard on weeknights, 50–100% weekends and public holidays. |
| Call-out fee (regional NSW) | $80 – $120 | Lower than the $100–$170 typical of Sydney metro. |
| Emergency call-out, total attendance | $250 – $700 | Callout plus first hour, before parts. |
These are typical price ranges for the Illawarra and NSW, drawn from published 2026 industry pricing data — not a quote, and not our fixed prices. What your job actually costs depends on access, the age and condition of the plumbing, parts, and whether it is after hours. We give you a fixed price before we start work, so you are never guessing. Reviewed 23 August 2026.
Servicing the whole Illawarra
Kiama-based, covering Helensburgh down to Berry. Local pages with pricing and area-specific detail: