Detention Tanks

The detention tanks of Pacific Building Services are seamless, robust, quick to install, and ready for loads on the lids if required. You now have the opportunity to reduce those expensive and complicated detention system costs and use an all in one system. They are installed easily within the day, which includes digging if placed underground, plumbing, and delivery.

Our tanks can be fitted with orifice plates engineered to whatever size required to reduce the flow of water exiting to the stormwater system. This method causes water to back up and store in your OSD tank, so the orifice is fitted with a meshed cover to stop debris. Our OSD tanks and unique orifice plates are widely used throughout sites in Australia.


Our onsite detention tanks can be placed under your garage slab or driveway, or placed underground out of site. They are ideal if you have a very small block. We are considered to be the best service provider in Sydney.


Safety Standards

Pacific Building Services Employees and sub-contractors follow strict safety standards in accordance with our Occupational Health and Safety and Environmental Management Procedures. We use a range of Elevated Work platforms and access equipments. Our Personnel are fully licensed for all the tasks we undertake. All our employees are site safety induced and have induction cards.

Please contact us if you'd like to request additional information and clarification.