One name.
One promise.
Established 2025.
Do the job right, treat people fairly, and stand behind every connection we make.
Built one job
at a time.
One Line Plumbing was founded in mid-2025, but our team has already spent over 15 years working across residential, commercial, industrial, and mining plumbing.
That experience means no vague quotes, no shortcuts, and no leaving a mess behind. We've carried the lessons from every sector into one focused operation built for Western Australia.
The mission is simple: show up, solve the problem, make sure it stays solved — and stand behind every connection we make.
Our Values
Four principles.
No exceptions.
Do it right
Integrity
Transparent pricing, honest assessments, and no upselling on work you don't need.
Show up ready
Professionalism
On time, in uniform, with the right tools. Property respected. Site left cleaner than we found it.
First time
Precision
Diagnose accurately. Fix correctly. Attention to detail saves you time and money.
For the long haul
Care
Community, environment, safety. Sustainability is woven into every job we complete.
What Clients Say
Experience across
every sector.
"They handle everything from a leaking tap at home to full camp dewatering on our mine site. One team, every sector — and it shows."
Site Manager
Mining & Industrial Project, Pilbara
"We brought them in for a commercial fit-out, but what stood out was the breadth. Residential detail, industrial toughness, and they actually turn up."
Facilities Lead
Commercial Development, Perth
"Fifteen years on the tools isn't just a number. You can see it in how they diagnose, how they communicate, and how clean they leave the site."
Operations Director
Industrial Facility, Kwinana
"Backflow testing, poly welding, gas fitting, emergency callouts — they genuinely cover the lot. Saves us juggling five different contractors."
Property Portfolio Manager
Multi-Site Client, Metro WA
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