Licensed plumbers for residential and commercial work across Northern Sydney. From dripping taps to full bathroom renovations — one call handles it all.
O'Brien Plumbing Hornsby is based at Level 1, 22–28 Edgeworth David Avenue, Hornsby NSW 2077. We provide the full range of residential and commercial plumbing services across Northern Sydney — from Hornsby to North Sydney, and every suburb on the Upper and Lower North Shore.
Our team of licensed plumbers (NSW Fair Trading licence #326905C) carries the parts, tools and diagnostic equipment to handle most jobs in a single visit. We quote upfront before any work begins, and back all labour with a 7-year workmanship warranty.
For homeowners across Northern Sydney, we handle every plumbing need your property will ever have:
We maintain commercial properties across Northern Sydney including office buildings, medical centres, schools, aged care facilities, strata buildings, restaurants and retail premises. Our commercial plumbing services include planned preventative maintenance contracts, backflow prevention testing, TMV servicing, grease trap maintenance, and priority emergency response for contract clients.
All commercial work is documented with digital job reports, photos, and compliance certificates — formatted for property managers, strata committees and facility managers.
We are not the cheapest plumber in Northern Sydney — and we do not try to be. We are the most reliable, communicative and organised. Here is what sets us apart:
Our plumbers service every suburb in Northern Sydney, including Hornsby, Waitara, Wahroonga, Turramurra, Pymble, Gordon, Killara, Lindfield, Roseville, Chatswood, Lane Cove, North Sydney, Neutral Bay, Mosman, Cremorne, Artarmon, St Leonards, Crows Nest, Willoughby, Northbridge, Cammeray, Kirribilli, Milsons Point, Asquith, Mt Colah, Mt Kuring-gai, Berowra, Thornleigh, Pennant Hills, Cherrybrook, West Pennant Hills, and all surrounding areas.
We dispatch from our Hornsby office at Level 1, 22–28 Edgeworth David Avenue, which gives us fast response times across the entire Upper and Lower North Shore — typically within 60 minutes for urgent calls during business hours.
The table below shows typical cost ranges for common plumbing jobs in Northern Sydney. All prices are GST-inclusive estimates — your actual quote is confirmed before work begins.
| Service | Typical Cost Range | What's Included |
|---|---|---|
| Leaking tap repair | $120 – $220 | Diagnosis, washer/cartridge replacement, test |
| Blocked drain (single fixture) | $150 – $300 | Electric eel or jetter, CCTV if required |
| Blocked sewer main | $250 – $500+ | High-pressure jetting, CCTV inspection |
| Toilet repair/replacement | $180 – $650 | Cistern repair or full suite replacement |
| Hot water system replacement | $1,600 – $3,200+ | Supply, install, old unit removal, compliance cert |
| Gas cooktop connection | $180 – $350 | Gas pipe run, bayonet fitting, compliance cert |
| Burst pipe repair | $250 – $600+ | Isolation, pipe repair/replacement, pressure test |
Source: O'Brien Plumbing cost guide 2026. On-site diagnostic included. Fixed prices confirmed before any work starts. 7-year workmanship warranty on all labour.
For urgent jobs during business hours, we typically dispatch within 60 minutes from our Hornsby office. For non-urgent work, we offer same-day or next-day appointments depending on availability.
We send a qualified technician to diagnose the issue on site. You'll receive fixed prices before any work starts, so there are no surprises. Our diagnostic process identifies the exact cause so you can make an informed decision before any repair begins.
Yes. O'Brien Plumbing & Roofing holds NSW Fair Trading contractor licence #326905C. Our team includes qualified plumbing and roofing specialists with a management team bringing over 40 years of combined experience. We carry $20M public liability insurance.
Yes. We cover the entire North Shore from Hornsby down to North Sydney, Neutral Bay, Mosman and Kirribilli — plus all suburbs in between including Chatswood, Lane Cove, Willoughby, Artarmon and St Leonards.
Always. We provide a fixed-price quote before any work begins. If the scope changes during the job, we explain and confirm the revised price before proceeding.
Need a Plumber in Northern Sydney?
Call us now or book online. Same-day service available for urgent jobs.