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Spring Sprinkler Start-Ups in Denver, CO

We turn your system back on, check every zone and adjust it for the new season.

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Row of sprinkler heads running along a lawn beside a rock border

Turning sprinklers on after winter is more than flipping a switch. Freezes, snowplows and settling ground can damage heads and lines, and a careful start-up catches problems before they waste water.

When to book

  • Usually April or May, after the last hard freeze
  • We schedule around the weather; there is no guaranteed last-freeze date

If something is broken

We show you what we found, explain it and give you a price before we fix anything.

How the work goes

  1. Water on slowly

    The water is turned back on slowly to protect the pipes.

  2. Backflow check

    We check the backflow device. This is a visual check, not a certified backflow test.

  3. Run every zone

    Each zone runs while we look for leaks and broken heads.

  4. Adjust heads

    Heads are adjusted for coverage.

  5. Program the controller

    Your controller is set for spring.

  • Sprinkler zones running across a lawn between pine trees
  • Sprinklers watering a wide lawn with pine trees and a shed
  • Pine trees and a ranch fence on a lawn J&M waters, with sprinklers running

Project reference

Spruce Mountain Ranch, Larkspur

J&M also performs irrigation maintenance at Spruce Mountain Ranch.

See the ranch project

Questions we hear a lot

What if you find something broken?

We will show you, explain it and give you a price before we fix anything.

Do I need a start-up if my system was blown out?

Yes. A blowout protects the system over winter; the start-up turns it back on and checks it for the season.

Request a quote for spring start-ups.

Leave your name and phone number. J&M will get back to you about the next step.

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