O'Brien Plumbing & Roofing service fleet

30 Years · Locally Owned · LIC311087C

Licensed Plumbers & Roofers — Central Coast & Northern Sydney

Two fully equipped branches. Emergency response, planned maintenance, residential and commercial — all under one trusted licence.

About O'Brien Plumbing & Roofing

O'Brien Plumbing & Roofing is locally owned and nationally supported, with roots in Central West NSW and 30 years of experience in plumbing, gas fitting, and roofing. Today we operate from two branches — Wyong on the Central Coast and Hornsby in Northern Sydney — with a team of qualified plumbing and roofing specialists serving residential, commercial, and emergency work.

As part of the O'Brien national network, we combine local service with established training standards and operational systems. Our management team brings 30 years of experience, and our field teams follow documented procedures for safety, compliance, and quality.

We work with homeowners, real estate agents, builders, healthcare providers, aged care facilities, restaurants, retailers, body corporates, councils, and government departments. Whether it's a leaking tap or a multi-site compliance program, we bring the same level of professionalism and accountability to every job.

Locally Owned, Nationally Supported

Meet the Team

Licensed and experienced plumbing and roofing specialists serving residential and commercial clients across both regions.

How We Work

From your first call to job completion, our process is designed to be straightforward, transparent, and stress-free.

  1. Call or Book Online: Call your nearest branch directly or submit an online enquiry with the service details our team needs.
  2. Assessment & Quote: A licensed plumber attends your property, diagnoses the issue, and provides a fixed-price quote before any work begins. No surprises.
  3. Recommended Work: We assess the issue and explain the recommended work before proceeding.
  4. Quality Guaranteed: All work is signed off, warranty documented, and a compliance certificate issued where required. We follow up to ensure you're satisfied.

Our Services

Full-service plumbing and roofing across both regions. Each service page includes pricing guidance, common causes, and what to expect during a callout.

Hot Water Shop — Browse and order hot water systems online. Rheem, Rinnai, Dux, Bosch, Thermann, Emerald heat pumps — supplied and installed.

Commercial & Compliance Services

Beyond residential plumbing, O'Brien Plumbing & Roofing delivers structured commercial maintenance programs for organisations that require compliance documentation, scheduled servicing, and rapid emergency response.

We work with aged care facilities, schools, strata managers, healthcare providers, hospitality venues, retail chains, and government departments. Our commercial team handles TMV testing, backflow prevention, grease trap servicing, warm-water system compliance, and large-scale roofing — all with full documentation and regulatory reporting.

Industries We Serve

Commercial maintenance support includes TMV testing, backflow prevention, and warm-water compliance for aged care, strata, facilities, hospitality, and government clients.

Authorised Service Agents & Trusted Suppliers: Rheem, Rinnai, Dux, Bosch, Aquamax, Reece

Frequently Asked Questions

Common questions about our plumbing and roofing services across the Central Coast and Northern Sydney.

How does your pricing work?

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.

What areas do you service?

We operate from two branches. Our Wyong branch covers the entire Central Coast from Gosford to Lake Munmorah, including Terrigal, Erina, Tuggerah, The Entrance, Woy Woy, and all surrounding suburbs. Our Hornsby branch covers Northern Sydney including Hornsby & Upper North Shore (Wahroonga, Turramurra, Gordon, Pymble, Berowra, Mt Colah), the Hills District (Castle Hill, Baulkham Hills, Bella Vista, Kellyville, Rouse Hill), Ryde & Northern Districts (Epping, Eastwood, Macquarie Park, Lane Cove), and the Northern Beaches (Mona Vale, Narrabeen, Frenchs Forest, Newport, Warriewood).

Are you available for after-hours emergencies?

Yes. Our Central Coast branch operates 24 hours, 7 days a week for plumbing and gas emergencies. Our Hornsby branch provides 24/7 emergency callout in addition to standard hours of Monday to Friday, 7:30 AM to 4:00 PM.

What licence do you hold?

O'Brien Plumbing & Roofing holds NSW Fair Trading contractor licence LIC311087C, covering plumbing, gas fitting, roofing, and drainage work. Our management team brings 30 years of experience, and our team includes qualified plumbing and roofing specialists.

Do you offer payment plans?

Yes. We offer interest-free payment plans through ZIP, allowing you to spread the cost of larger jobs like hot water system replacements, bathroom renovations, or roof repairs over time with no interest charges.

Can you handle commercial plumbing and compliance work?

Yes. We provide commercial plumbing maintenance for aged care facilities, schools, strata properties, restaurants, retail, and government buildings. Our services include TMV testing, backflow prevention, grease trap servicing, and warm-water system compliance.

How quickly can you respond to an emergency?

Call your nearest branch directly for emergency assistance. We offer 24/7 emergency availability for burst pipes, gas leaks, and flooding, with attendance arranged according to location, workload, access, and the nature of the issue.

Do you provide warranties on your work?

Our workmanship is covered by our lifetime labour guarantee, subject to the applicable terms and service-specific exclusions. Manufacturer warranties apply to materials and equipment and vary by product and model. See our warranty page for the current terms.

Service Areas

Two branches, one trusted team. We cover the full Central Coast from Gosford to Lake Munmorah, and Northern Sydney from Hornsby to Brooklyn and the Hills District.

Request a Quote

Tell us about your plumbing or roofing needs. We'll review your enquiry and discuss the next step.

Resources & Guides

In-depth guides for facility managers, property operators, and commercial clients on compliance, maintenance planning, and risk management.

Need a Plumber or Roofer?

Call your nearest branch directly for service scheduling and upfront pricing before authorised work begins.

Central Coast: 4 Dulmison Avenue, Wyong NSW 2259 — (02) 4351 3665

Northern Sydney: 22-28 Edgeworth David Avenue, Hornsby NSW 2077 — (02) 9477 1519