// New Builds
New build plumbing,
done right the first time
done right the first time
Building a new home or extension? We install the water, drainage and gas systems your property relies on — delivered efficiently, fully compliant and built to last.
// Overview
New Build Plumbing
The plumbing behind your walls, floors and foundations is one of the most important parts of any new home. When it's installed properly, it performs reliably for decades. When corners are cut, the problems often don't appear until long after construction is complete. That's why JGH Plumbing delivers complete plumbing systems for new homes, duplexes, granny flats and extensions with a focus on quality workmanship from day one.
We manage every stage of the plumbing process, from underground drainage and water services through to final fixture installation. Working closely with builders, project managers and homeowners, we ensure plumbing works are completed on schedule, fully compliant and ready for the next stage of construction. With more than 10 years of experience across Sydney and the Illawarra, we're trusted to get it right the first time.
What we handle
Complete water supply and drainage rough-ins
Stormwater and sewer system installation
Gas line installation and appliance connections
Bathroom, kitchen and laundry fit-offs
Hot water system supply and installation
Builder coordination and staged construction scheduling
Servicing Cronulla, Caringbah, Miranda, Gymea, Engadine, Menai, Kirrawee and the wider Sutherland Shire
Get a free quote today
Tell us about your job and we'll get back to you fast.
Thanks — we'll be in touch soon!
James will get back to you as soon as possible, usually within a few hours during business hours.
For emergencies, call 0421 188 367 — available 24/7.
Renovation value calculator
See the potential return on your renovation
Enter your budget and choose a project type for an estimated range of value added to your home. This is a general guide based on typical renovation outcomes, not a formal appraisal.
$
Estimated outcome
Estimated value added
$18,600 – $22,500
Cost recovered
62% – 75%
Bathroom renovations typically recover 62–75% of their cost in added home value, based on industry renovation studies. Actual returns depend on your property, location, finish quality and the local market — this tool is a general guide only.
Get a personalised quote// Good to Know
Why the plumbing matters
most in a new build
most in a new build
It's buried for good
Pipework set into slabs and walls is costly to reach later — it has to be right the first time.
Compliance is non-negotiable
New work must meet the relevant standards, with certification where required.
Drainage decides everything
Correct falls and connections prevent slow drains and backups for the life of the home.
Timing keeps the build moving
Plumbing rough-in and fit-off have to land at the right build stages — we plan around your schedule.
Gas needs licensed hands
New gas lines and connections are licensed work that must be done correctly and tested.
Quality shows for decades
Done well, you'll never think about it — which is exactly the point.
// Why JGH
Why locals choose us for new builds
10+ years on the tools
A decade of plumbing across Sydney and the Illawarra — we install new systems properly, efficiently and to Australian standards.
Coordinated with your build
We work seamlessly with builders and trades, arriving at rough-in and fit-off stages on schedule to keep your project moving.
Lifetime workmanship warranty
Every installation is backed by our lifetime workmanship guarantee, giving you confidence long after the build is complete.
Based in Cronulla, serving the Sutherland Shire, Greater Sydney and the Illawarra.
// FAQs
New Builds — your questions answered
Do you do plumbing for new homes and extensions?
Yes — JGH Plumbing installs complete plumbing for new builds, extensions and granny flats including water supply, drainage, stormwater, gas and fixture fit-off.
Can you work with my builder's schedule?
Absolutely. We coordinate with builders and other trades to ensure rough-in and fit-off stages happen on schedule.
Is the work compliant and certified?
Yes. All plumbing work is completed to current Australian standards and compliance documentation is provided where required.
Do you install gas services?
Yes. We are licensed gas fitters and can install gas lines and appliances as part of your new build project.
How much does new-build plumbing cost?
Pricing depends on the size and complexity of the build. Contact us with your plans and we'll provide a clear, detailed quote.
Do you offer a warranty?
Yes. All workmanship is backed by our lifetime workmanship warranty for complete peace of mind.
Need a plumber
you can count on?
you can count on?
Speak with James
0421 188 367