Shopping Centre Plumbing Estimates

Pricing a shopping centre plumbing project requires a well-structured and comprehensive estimate to ensure your costs are accurate and your bid remains competitive.

Whether you’re working on a Coles, Woolworths, or any other retail development, the plumbing scope is extensive, involving trade waste, siphonic drainage, tundishes, and major civil stormwater works.

Key Plumbing Considerations for Your Shopping Centre Project

Your estimate needs to account for a range of plumbing elements, including:

  • Extensive trade waste systems throughout the store, especially in high-use areas like freezers, butcheries, and deli sections.
  • Tundish pipework, which is often overlooked but is essential for managing wastewater from refrigeration and kitchen equipment. Be prepared for design changes, as these layouts tend to evolve from the first draft. Recent variations for Coles exceeded $100K plus GST due to design adjustments.
  • Scissor lift hire for overhead installations—make sure to allow for this in your estimate.
  • Siphonic roof drainage, which requires careful planning. These systems use HDPE pipes, and since installation is slow and complex, your estimate must account for the additional labour involved.
  • Siphonic drainage design exclusions – If you’re pricing siphonic works, be clear on whether you are including or excluding design fees, as these must be completed before work starts and can be quite costly.

Civil Stormwater & External Works

Shopping centres typically require major external stormwater infrastructure, including:

  • Large pit sizes and bigger concrete pipes to manage high water volumes.
  • OSD (On-Site Detention) tanks with filtration devices for stormwater management.
  • Filtration device commissioning, which is essential and should not be overlooked in your estimate.

Need a precise shopping centre plumbing estimate? Get in touch today to ensure your next project is priced right.