Fall sprinkler blowouts (winterization)
Compressed air clears every zone, the backflow preventer and the supply line so nothing is left to freeze.
The short answer
PWW Services installs, repairs, starts up and winterizes lawn sprinkler systems in Grande Prairie, Clairmont, Sexsmith and the County of Grande Prairie. In this climate the job that matters most is the fall blowout: water left in the lines freezes, and cracked pipe, valves and backflow preventers are the usual result. Book it before freeze-up.
Spring start-up
Slow pressurization, a zone-by-zone check of heads, valves and the controller, and coverage adjustments get the system ready for the growing season.
Sprinkler repairs
We repair broken or sunken heads, leaking valves, cracked lateral lines, controller and wiring faults, and zones that won't turn on or off.
New irrigation system installs
The work starts with a site walk and zone layout matched to the lawn, beds and water pressure, followed by controller set-up and a walkthrough.
Why winterization matters in Grande Prairie
The January mean is −13.9 °C, the record low is −52.2 °C, and measurable snow can fall from September through May. A sprinkler system must be blown out before sustained freezing so water is not left in lines, valves or the backflow preventer.
Service area
Grande Prairie, Clairmont, Sexsmith, Wembley, Beaverlodge and the County of Grande Prairie.
Sprinkler questions we get
When should I blow out my sprinkler system in Grande Prairie?
Before sustained freezing temperatures arrive. Measurable snow can fall here from September, so most systems are winterized in early fall. If a hard frost is forecast and your system is still charged, book the blowout now.
What happens if I don't winterize my sprinklers?
Water left in the lines, valves and backflow preventer freezes and expands. The usual result is cracked pipe and fittings, split valve bodies and a damaged backflow assembly, which you find out about at spring start-up.
Can I blow out my own sprinkler system?
Some owners do, but a small home compressor often can't move enough air to clear every zone, and too much pressure can damage heads and fittings. A proper blowout clears each zone in turn at a controlled pressure.
Do you repair systems you didn't install?
Yes. We repair and service existing systems regardless of who installed them.
Do you install new sprinkler systems?
Yes. We walk the site, lay out zones to suit the lawn, beds and available water pressure, install the system and set up the controller.
Are you insured?
Yes. Every contractor PWW dispatches is insured. Once your service is booked, we send the assigned contractor's certificate of insurance on request.