Outdoor Kitchen Plumbing in Illawarra

Outdoor kitchen plumbing involves running water supply (hot and cold), drainage, and gas pipework to an alfresco cooking and entertaining area. In Illawarra, outdoor kitchen plumbing costs $1,500-$6,000 depending on the scope of work. A basic outdoor sink with cold water supply costs $800-$1,500 installed. Adding hot water supply extends to $1,200-$2,500. Connecting a built-in BBQ to mains natural gas — eliminating the need for gas bottles — costs $500-$1,200 depending on the distance from the gas meter. A fully plumbed outdoor kitchen with sink (hot and cold water), mains gas BBQ connection, bar fridge water line, ice maker connection, drainage to the sewer system and grease trap costs $3,000-$6,000. Costs depend on distance from existing plumbing infrastructure, the materials to work around or through (concrete slabs, retaining walls, paving), and any council requirements. All outdoor kitchen plumbing must comply with AS/NZS 3500. Gas connections require a licensed gas fitter and a compliance certificate. Drainage must connect to the sewer system — not stormwater — because food waste and grease must be treated at the wastewater plant. Backflow prevention is required to protect the drinking water supply from outdoor cross-connections.