Made for Australian homesFree planning tools • No signup required
Plumbing & bathrooms·Project guide

Replace a kitchen sink: costs and options

Measure the cabinet and identify how the sink sits in the benchtop. A replacement that matches the existing cut-out is a different job from fitting an undermount sink that needs stone work.

Interactive worksheet · Enter your own rates · No signup

What to include in the scope

Compare top-mount, undermount and inset options with the plumber and benchtop installer. Price the sink, waste, trap and tap separately from fitting. Include any cut-out changes, cabinet modifications and disposal in the comparison.

Plumbing and drainage work may require a licensed plumber. Check the rules for your state or territory and whether permits are needed.

Planning reference

Australian Government YourHome — Preliminary research. Reviewed 12 November 2026. This reference provides planning context.

YOUR PROJECT ESTIMATE

Build your budget

Adjust the quantities and unit rates. This is a planning tool, not an installer quote.

Your own estimate · last reviewed 28 October 2026
Basis for the example

Use local itemised quotes as the starting rates. Freight, labour availability and minimum call-out charges can change the total by location. Enter GST-inclusive rates where available and list removal, disposal and access separately when excluded.

BETTER QUESTIONS

Ask before you accept a quote.

  • Can the new sink use the current cut-out and waste position, and which trade takes responsibility for sealing and testing?
  • Is GST included, and is the price fixed or estimated?
  • Are removal, disposal, access and making-good included?
  • What changes would trigger extra costs, and who approves them?
  • What is the warranty on products and workmanship?
Safety and licensing

Plumbing and drainage work may require a licensed plumber. Check the rules for your state or territory and whether permits are needed.

THE NEXT STEP

Compare quotes against the same scope

Record itemised inclusions from at least two quotes, then evaluate differences in quality, warranty, timing and exclusions.

Compare quotes ↗