PLUMBING
How to Estimate a Dishwasher Installation
Contractor method for estimating dishwasher installation by unit, labor and options.
Dishwasher installs fail on the plumbing and the removal. The unit has a known price; the water and drain connections and the old-unit haul-away are where the quote grows.
THE SHORT ANSWER
How do you estimate a dishwasher install?
Check the site, price the unit and labor, then add removal (~$50) and plumbing (~$75). A $900 unit with $250 labor, removal and plumbing runs about $1,275.
Check the site
Confirm the cabinet opening, the water supply and the drain line. A dishwasher needs a dedicated circuit and a proper drain connection.
- Measure the cabinet opening
- Check the water supply
- Confirm the drain line
- Check the electrical circuit
Price the unit and labor
A dishwasher runs ~$900 and labor ~$250 for a standard install with existing connections.
Add removal and plumbing
Hauling away the old unit adds ~$50 and plumbing connections ~$75. Use the Dishwasher Installation Cost Calculator to build the quote.
Check the total
Your total should land within 10% of the calculator output before markup. A full install runs $250-$550 excluding the unit.