Sprinkler Winterization & Blowout in Castle Rock, Colorado

Schedule Winterization – Quick & Easy

 

Protect Your Sprinkler System Before Freezing Temperatures Arrive

Professional sprinkler winterization removes water from your irrigation system before freezing temperatures can cause costly damage to pipes, valves, fittings and sprinkler heads.

Our team provides sprinkler winterization and blowout service throughout Castle Rock and surrounding Douglas County communities.

Knowing when freezing temperatures typically arrive can help you decide when to winterize. Here are the first-freeze dates for the Douglas County area:

Earliest Date of First Freeze
September 8, 1962
Latest Date of First Freeze
November 15, 1944
Average Date of First Freeze
October 7th
First Freeze Recent Years
10/22/2025
10/30/2024
10/14/2023
10/13/2022
10/10/2021
09/09/2020
10/05/2019

Schedule Winterization – Quick & Easy

Watering in October? Read This First.

Some homeowners choose to continue watering into October. In certain conditions, this can be beneficial—but it requires caution as freezing temperatures become more likely.

If you plan to water late into the season:

  • Wrap the backflow preventer with insulation and cover it with a plastic bag secured with tape.
  • Remember that this provides limited protection and does not guarantee against freeze damage.

The safest approach is to schedule your sprinkler winterization and blowout before freezing temperatures arrive.

Why Professional Winterization Matters

An improper sprinkler blowout—or skipping winterization altogether—can lead to:

  • Cracked pipes underground

  • Damaged valves and fittings

  • Broken sprinkler heads

  • Costly and avoidable spring repairs

Our team winterizes thousands of systems each year and understands how Colorado’s climate impacts irrigation equipment. The goal is simple: protect your system so it’s ready to perform next season.

Why Castle Rock Homeowners Trust Us With Their Sprinkler Winterization

⭐️⭐️⭐️⭐️⭐️
“Auggie winterized my system this morning. He was prompt, professional, explained exactly what he did, and took the time to answer my questions about closing the system for the winter.”
Carolyn B.

⭐️⭐️⭐️⭐️⭐️
“Damion knew his stuff, advised me of the freeze damage I had, and cleared my zones the correct way.”
Jon D.

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2026 Sprinkler Winterization Pricing

September 14–30
$125 — up to 8 zones
$5 each additional zone

October 1–November 20
$125 — 1–3 zones
$150 — 4–8 zones
$5 each additional zone

Schedule Winterization

Office: 720-398-9442