Irrigation
Winterization
& Blowouts
Water left in your lines will freeze. When it does, it expands — and it doesn't care how new your system is. A professional blowout protects everything before Minnesota's first hard freeze.
Water in your pipes expands when it freezes — your system doesn't
Cracked pipes, shattered heads, and blown valve bodies are all common results of an improperly winterized irrigation system. It happens in the walls of the pipe where you can't see it — and you won't know until you fire up the system in the spring to find out exactly what the winter cost you.
A proper professional blowout takes about an hour. A spring repair of freeze damage takes much longer — and costs a lot more.
"The cheapest spring repair is the one you prevented with a $90 blowout in October."
— Image Irrigation, North Branch MNHow a professional blowout works
Shut Off the Water Supply
Main irrigation shutoff and backflow preventer closed and isolated from the water source.
Connect Commercial Compressor
We use a high-volume commercial air compressor — 50–100 CFM. Consumer rentals deliver 10–20 CFM. The difference matters.
Zone-by-Zone Purge
Each zone opened and blown out individually, cycled multiple times until no water remains in lines or heads.
Final Check & Controller Shutdown
Controller set to off for winter, backflow preventer drained, final walkthrough to confirm complete shutdown.
Why homeowner blowouts fail — and what we see every spring because of it.
The North Branch
winterization window
In North Branch and the North Metro, the ideal window is mid-September through mid-October — after lawn watering needs drop off but well before the first hard freeze.
Don't wait for frost warnings. By then our fall schedule is fully booked and every cold night is a gamble on your pipes.
Ideal Window Opens
Book now to get your preferred date — this is the sweet spot before the schedule fills up.
Peak Demand Begins
Schedule filling fast. If you haven't booked yet, do it this week.
Availability Getting Limited
We're working to fit everyone in — earlier you call, better your options.
Too Late
Any water left in the system is at risk. Call us immediately if you haven't winterized yet.
Don't let this winter cost you a spring repair bill.
Fall slots fill fast in the North Metro. Book your blowout before the schedule closes.