Irrigation tools

Cost calculators are useful for range-checking a bid. LatestCost's per-zone figures of roughly $200 to $700 and Homewyse's May 2026 range of about $1.04 to $1.91 per square foot both give you a frame. Neither can see your soil, your pressure, or the tree roots between the meter and the back fence.

Runtime calculators that ask for your grass type and climate are a starting point, but they assume a precipitation rate your heads may not deliver. The can test measures what your actual system does. Do it once per zone and you'll never need a calculator again.

For rebates, check EPA's finder and then call your water utility directly. Programs change, funds run out mid-year, and some rebates require pre-approval before purchase — buying first and applying later can disqualify you.

Skip any tool that requires your phone number before showing a number. That's lead generation, and what follows is a sales call, not an estimate.

How to choose

Use the can test for runtimes

Empty tuna cans, half an inch, time it. More accurate than any online calculator.

Check the rebate finder, then call the utility

EPA lists programs but doesn't run them. Your provider has the current terms and any pre-approval requirement.

Search the certified pro directory

EPA's directory filters by ZIP, certification type and customer type.

Treat cost tools as range checks

$200–$700 per zone is a frame for judging a bid, not a price for your yard.