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When Should You Winterize Your Sprinklers in Boise?

Idaho Sprinkler Repair Service Truck
Published
January 12, 2026
Category
Read Time
1 min read

As summer winds down and fall approaches in Boise, it’s time to start thinking about protecting your sprinkler system from Idaho’s harsh winter. Proper winterization is essential to prevent costly freeze damage.

The Best Time to Winterize in Boise

In Boise and the Treasure Valley, we recommend winterizing your sprinkler system between mid-October and early November. This timing ensures you’re protected before the first hard freeze, which typically occurs in late October or early November.

Signs It’s Time to Winterize

  • Overnight temperatures regularly dropping below 40°F
  • First frost warnings in the forecast
  • Your lawn has stopped actively growing
  • Trees are losing their leaves

Don’t Wait Too Long

We get busy in October and early November with winterization appointments. Schedule early to ensure you can get a convenient appointment time. Waiting until the last minute could mean paying for emergency service or, worse, dealing with freeze damage.

Contact us today to schedule your winterization service!

Written By

Idaho Sprinkler Repair

Our team of irrigation experts provides helpful tips and information to keep your sprinkler system running smoothly. With years of experience serving the Treasure Valley, we're here to help with all your sprinkler needs.

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