Sprinkler Winterization

Colorado's freeze-thaw cycles are hard on irrigation systems. Water left in pipes, valves, or backflow preventers can expand as it freezes — cracking PVC, splitting fittings, and destroying backflow devices that cost hundreds of dollars to replace. A proper air blowout removes virtually all residual water from every zone, giving your system the best chance of coming through winter without damage.

• Zone-by-zone compressed air blowout
• Manual drain valve operation where applicable
• Backflow preventer winterization and insulation check
• Controller shutdown and off-season programming
• Valve box inspection and cover placement
• Post-blowout system check for remaining water

• First hard freeze is forecasted in the next few days
• Nighttime temperatures regularly dropping below 32°F
• You had freeze damage last year and want to prevent a repeat
• Your system was never properly winterized by a professional
• You're leaving town before the first freeze
• You've already noticed frost forming on low-lying areas of the yard

Winterization prevents freeze damage that can cost hundreds or thousands to repair in the spring. It's the most important seasonal service for Colorado irrigation systems.

Trent runs a properly sized compressor through every zone, forcing water out of lines, valves, and the backflow assembly. Manual drains are opened where applicable, the controller is shut down and set for the off-season, and the system is checked for any remaining water before he leaves.

Every job is quoted upfront before any work begins. These are the factors that shape the cost — never a surprise invoice.

• Number of zones on the system
• System size and compressor capacity needed
• Whether the backflow needs insulation or a protective cover
• Whether manual drain valves are present

Winterizations run late September through October, before the first hard freeze. At altitude (Castle Rock, Parker), freeze risk starts early — book by late September.