What Happens to Your Calgary Sprinkler System If You Don’t Winterize โ€” Real Costs

Every year in Calgary, J.G. Irrigation gets calls in the spring from homeowners who delayed their fall blowout. The same story repeats: they meant to book in October, the frost came early, and now โ€” 6 months later โ€” the system does not work. Here is exactly what happens to an un-winterized Calgary sprinkler system, and what it costs to fix.

Freeze Damage Timeline โ€” Calgary Un-Winterized System

Time What Happens to the System
First -4ยฐC night Water in shallow supply pipe begins to freeze and expand
First -8ยฐC night Poly fittings and head sockets crack; valves may freeze solid
January-February deep freeze (-30ยฐC) Multiple pipe sections and all above-ground components destroyed
April startup attempt System fails to pressurize; water everywhere โ€” major excavation repair needed

Real Repair Cost Scenarios โ€” Calgary Spring 2026

Damage Extent Repair Cost
3-4 cracked fittings (minor freeze) $300-$600
Multiple zone valves damaged + heads cracked $800-$1,500
Full supply pipe replacement (severe freeze) $1,500-$3,500
Full system replacement (catastrophic) $4,000-$8,000
Cost of professional fall blowout โ€” J.G. Irrigation $90-$140 โ€” prevents all of the above

Don't Pay $1,500 in Spring โ€” Pay $90-$140 Now

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