How to Prepare Your Sprinkler System for a Billings Winter

As winter approaches in Billings, it’s time to think beyond cozy sweaters and snow tires—it’s also time to winterize your sprinkler system. Failing to properly prepare your irrigation setup for freezing temperatures can lead to costly repairs in the spring. At Horizon Landscape & Irrigation, we’ve seen firsthand how harsh winters can wreak havoc on outdoor plumbing. That’s why we’re sharing this step-by-step guide to help you protect your sprinkler system before the freeze sets in.

Why Winterizing Matters in Billings
Billings winters bring cold snaps that regularly drop below freezing. When water is left in your sprinkler lines, it expands as it freezes, causing cracked pipes, broken valves, and damaged sprinkler heads. These repairs can cost hundreds—sometimes thousands—of dollars to fix. A simple winterization process can help you avoid those headaches altogether.

Step 1: Turn Off the Water Supply
First things first—shut off the main irrigation water supply. This prevents more water from entering the system and getting trapped when temperatures dip. Most systems have a shut-off valve located near the main line or inside your basement or crawl space.

Step 2: Drain the System
Draining water from your system is crucial. Depending on your setup, this can be done in one of three ways:

Manual drain valves: Open each valve to let water flow out.

Automatic drain valves: These open automatically once pressure drops—just ensure they’re functioning.

Blow-out method: This involves using an air compressor to force water out of the pipes. This is the most thorough method and is highly recommended for Billings’ colder climate.

Note: If you’re not experienced with using an air compressor, it’s best to leave this part to a professional to avoid damaging the system.

Step 3: Protect Backflow Preventers and Valves
Backflow prevention devices are especially vulnerable to freezing. Wrap them with insulated covers or foam insulation tape to provide extra protection. Also, make sure all above-ground valves are free of residual water and properly sealed.

Step 4: Shut Down the Controller
Most modern systems include a controller or timer. Switch it to “off” or “rain mode” for the season. This keeps the settings saved for spring while turning off automatic watering cycles.

Step 5: Schedule a Professional Winterization Service
While DIY is possible, hiring a professional like Horizon Landscape & Irrigation ensures no detail is overlooked. We offer full winterization services in Billings, including air compressor blow-outs, inspections, and protective wrap for vulnerable parts of your system. We also alert you to any existing issues before they become major springtime repairs.

Don’t Wait Until It’s Too Late
The first hard freeze can hit Billings as early as October, and waiting too long to winterize your sprinkler system can lead to costly surprises. By preparing now, you’ll save time, money, and stress in the spring.

Final Thoughts
Winterizing your sprinkler system might not be the most exciting fall chore, but it’s one of the most important if you live in Billings. At Horizon Landscape & Irrigation, we’re here to help you protect your investment and enjoy peace of mind all winter long.