Plumbing & Drainage

AO Contracting has been a market leader in residential and commercial plumbing and drainage for 20 years. We're Sydney Water accredited for all levels of work (sewer and water), and specialise in sub-division and development infrastructure works. Providing 24 hour 'Rapid Response Emergency Plumbing Services' for unexpected after hours plumbing issues.


Our services include (but not limited to) sewer/water mains works and fit outs for new projects or upgrades on past projects. Stormwater infrastructure and solutions including retention systems. Design and Management for new large scale projects. Roof Drainage Systems, Rainwater Tanks, Fire Hydrant and Hose Reel Water Services.