Irrigation service topic

Sprinkler winterization

Prepare irrigation components for freezing conditions using the method appropriate to the system and water source.

Quick answer

Winter preparation depends on the system layout, local exposure, shutoff points, and manufacturer guidance; compressed-air blowouts require appropriate equipment and technique.

Signs this may be the issue

A freeze is forecast and the system remains pressurized
Exposed pipes or a backflow device may be vulnerable
The property will be vacant during cold weather
Past freezes caused cracked fittings or valves

How diagnosis works

Before any winter procedure, identify the irrigation shutoff, backflow assembly, controller, low points, and manufacturer instructions. Not every system should be treated the same way.

What can affect the repair

System type and number of zones
Access to shutoffs and drain points
Backflow and pump configuration
Local freeze exposure and required protection method

Repair or replace?

Ask a qualified irrigator which components need isolation or draining. Do not use excessive compressed-air pressure; improper blowouts can damage the system and create hazards.

Texas landscape-irrigation services can require appropriate licensing. Verify qualifications, license, and applicable requirements before work is approved. See TCEQ guidance.

Questions about sprinkler winterization

Does every irrigation system need an air blowout?

No. The correct winter method depends on the system and components. A professional should confirm the appropriate process and safe pressure.

Can freezing damage a backflow device?

Exposed water-filled components may be vulnerable. Follow the device manufacturer's instructions and applicable local requirements.