Every fall, Overland Park homeowners face the same critical task: getting their irrigation system winterized before the first hard freeze. A forgotten zone or an improperly blown-out line can mean cracked PVC, burst valves, and hundreds of dollars in repairs come spring. At Hometown Lawn, we’ve been winterizing sprinkler systems across Overland Park and Johnson County for years — here’s everything you need to know.
Why Winterization Matters in Overland Park
Johnson County typically sees its first hard freeze sometime in October or November. Once temperatures drop below 32°F consistently, any water left sitting in your irrigation lines can expand as it freezes, causing pipes to crack and heads to break. The repair costs can easily exceed $300–$800 for a single freeze event — far more than the cost of a professional blowout.
The Blowout Method: What We Use
Professional irrigation winterization uses a high-capacity air compressor to force compressed air through each zone of your system, pushing all remaining water out through the sprinkler heads. This is the most thorough and reliable method for completely evacuating water from your lines.
It’s important to run the blowout zone by zone and never exceed the pressure rating of your pipes. This is why DIY attempts with small shop compressors often don’t fully clear the system — they lack the CFM (cubic feet per minute) output needed to do the job right.
When to Schedule Your Winterization in Overland Park
The ideal time to winterize in Overland Park is mid-October through mid-November. You want to schedule it after the last time you’ll need irrigation but before a hard freeze is in the forecast. Don’t wait until temperatures are already dipping into the 20s — by then, there’s already a risk of damage.
We recommend setting a reminder for mid-October and booking your appointment early, as our schedule fills up quickly during peak blowout season.
Don’t Forget the Backflow Preventer
Your backflow preventer is one of the most vulnerable components of your irrigation system during winter. Located above ground, it’s exposed to freezing temperatures and must be properly drained and insulated. Hometown Lawn’s winterization service includes inspecting and protecting the backflow preventer on every job.
Schedule Your Overland Park Irrigation Winterization Today
Don’t wait until there’s a freeze in the forecast. Hometown Lawn provides fast, professional sprinkler winterization for Overland Park, Olathe, Leawood, Lenexa, Shawnee, and all of Johnson County. Visit our Overland Park service page or call us today to get on the schedule before spots fill up.