How to winterize my sprinkler system

Difficulty Intermediate Time 1-2 hours Materials $65–$120 Steps 5
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Intermediate1-2 hours
Ensure the water supply is turned off before starting.
Do it yourself
$65–$120
parts & materials, about 1-2 hours of your time
Hire a pro
$100–$160
typical all-in price
Rough estimates for guidance only — actual costs vary by job, materials and local prices. Get real quotes.

Tools you'll need

Air compressorWrenchScrewdriver

Parts & materials

Air compressor rental
Typically need: 1
$30-$50
per each
Sprinkler system blowout adapter
Typically need: 1
$10-$20
per each
Pipe insulation
Typically need: ~50
$0.50-$1.00
per linear ft

Estimated materials total: $65–$120. Prices vary by region and retailer.

Step by step

  1. 1 Turn off the water supply Locate the main shut-off valve for your sprinkler system and turn it off to prevent any water from entering the system during the winterization process. 10 min
  2. 2 Drain the system manually Open all the manual drain valves on the system to allow any remaining water to escape. 15 min
  3. 3 Connect the air compressor Attach the blowout adapter to the sprinkler system's blowout port and connect the air compressor. 10 min Wrench
  4. 4 Blow out the sprinkler lines Turn on the air compressor and allow it to blow out the water from the sprinkler lines. Start with the furthest zone and work your way back. 30 min Air compressor Use appropriate pressure settings to avoid damaging the system.
  5. 5 Insulate exposed pipes Wrap any exposed pipes with pipe insulation to protect them from freezing temperatures. 20 min Screwdriver

Permits, safety & disposal

Safety rules
  • Always turn off the water supply before starting.
  • Use proper pressure settings on the air compressor.
Check locally

Confirm any local regulations regarding irrigation systems with Naperville city authorities.

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This guide is AI-generated for general help and may not fit your exact situation. Know your limits — when in doubt, hire a licensed pro.

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