Starting at $247

Professional Sprinkler System Winterization & Blowout in Flagstaff, AZ

Protect Your Irrigation System Before Winter Hits

Freezing temperatures can cause serious damage to irrigation systems if they aren’t properly shut down. We help Northern Arizona homeowners safely winterize their sprinkler and drip systems to prevent freeze damage, protect equipment, and avoid costly repairs in the spring. We make irrigation simple — diagnose clearly, fix correctly, maintain proactively.

  • Professional winterization and system shutdown
  • Irrigation Association–certified technicians
  • Proper compressed-air blowout procedures
  • Peace of mind going into winter

Winterizing Isn’t Just Turning the Water Off

Many systems are damaged each year because winterization is done incorrectly or skipped entirely.

Common risks include:

  • Frozen pipes and cracked fittings
  • Damaged valves and sprinkler heads
  • Hidden leaks discovered in spring
  • Expensive repairs that could have been prevented

Proper winterization protects your system and reduces surprises when irrigation season returns.

Northern Arizona Irrigation Specialists

At AZ Irrigation & Maintenance, irrigation is our specialty — not just one of many services. Our licensed, insured, and Irrigation Association–certified professionals understand the specific freeze risks and seasonal conditions unique to Northern Arizona. We follow structured winterization procedures designed to protect your system long-term.

How Winterization Works

1. System Evaluation

We inspect your irrigation system and prepare it for shutdown.

2. Professional Blowout & Shutdown

We use proper compressed-air techniques to remove water from irrigation lines and protect components from freezing.

3. Spring Readiness (Optional)

Join our AIMazing Irrigation Package and we’ll automatically schedule seasonal services so your system is protected year after year.

No guessing, no pressure — just reliable irrigation that works.

What’s Included in Winterization

  • Compressed-air blowout of irrigation lines
  • Controller shutdown and seasonal adjustments
  • Inspection for visible issues or vulnerabilities
  • Proper system shutdown procedures

The goal is simple: protect your system through winter and avoid costly freeze damage.

Backflow Protection Is Critical

Your backflow preventer is one of the most vulnerable components of your irrigation system in freezing weather. To avoid costly damage, it’s essential that the backflow device is properly insulated.

What You’ll Need:

  • An insulated cover or blanket designed for backflow protection

If you don’t already have one, we can supply a cover at an additional cost. Or you can follow the steps shown in our backflow protection video guide (available on our website) to prepare your device in advance.

We’re happy to inspect your backflow setup and confirm that it’s protected during our winterization service.

What to Expect After Winterization

Even after your system has been winterized, we recommend periodically checking your stop-and-waste valve throughout the winter. These valves typically last 10–20 years and may fail with age.

We’ll show you how to inspect your valve and determine if it’s in good condition. If replacement is needed, we’ll provide recommendations and repair options.

Benefits of Winterizing Your Sprinkler System

  • Avoid costly freeze damage to pipes and valves
  • Prolong the lifespan of your irrigation system
  • Eliminate the need for expensive spring repairs
  • Ensure a smoother and faster system turn-on in spring

It’s always better to complete sprinkler system winterization early and avoid unnecessary risk.

After diagnosing your system, our technicians present structured repair and improvement options:

Critical Repairs — Issues that should be addressed now to prevent damage, system failure, or water loss

Recommended Improvements — Enhancements that improve efficiency, performance, or long-term reliability

We explain what’s necessary, what’s recommended, and what can wait — before any work is performed.

Make Seasonal Irrigation Automatic

Prefer not to think about scheduling seasonal irrigation services?

With the AIMazing Irrigation Package, we handle:

  • Spring turn-on
  • Mid-season irrigation check
  • Winterization and shutdown

You stay informed — we handle the details.

Winterization Pricing

Standard One-Time Service

  • $165 for the first hour (includes service charge)
  • $165/hour after the first hour, billed by the minute
  • Parts billed separately

AIMazing Irrigation Package (Recommended)

Approximately 18% lower service rate for members, plus automatic seasonal scheduling. Add this line directly under the AIMazing heading: Most clients choose the AIMazing Package to save money and avoid seasonal scheduling — and you can switch back to one-time service anytime.

  • $135 for the first hour
  • $135/hour after the first hour, billed by the minute
  • Automatic seasonal scheduling
  • Ongoing system care

Transparent pricing. No surprises.

Schedule Your Sprinkler System Winterization Service Today!

Don't wait until the first freeze—protect your irrigation investment today with professional sprinkler system winterization from AZ Irrigation & Maintenance.

📞 Call us at 928.225.2224
🌐 Visit www.AimArizona.com to schedule service or learn more about the AIMazing Package

AZ Irrigation & Maintenance — Your trusted partner in seasonal sprinkler protection.

Standard Irrigation System

Even our standard system is premium

Includes Hunter Wi-Fi controller, rain sensor, waterproof wire connections, pressure regulator valve (if needed) and backflow assembly.

Standard features you get with AIM (that others often charge extra for):
Backflow insulation bag, rain sensor, hard-wired Wi-Fi controller, and high-efficiency nozzles.

We will determine what back flow style (pressure vacuum breaker or reduce pressure assembly) is best to keep you drinking water safe.

price range

4004.02

Flow meter

Highly Recommended Add On

The Hunter HC Flow Meter is designed to protect your irrigation system by continuously monitoring water use. It connects with your Wi-Fi controller to provide real-time alerts and automatic safeguards.

Benefits for You:

  • Leak Protection: Detects unusually high flow (burst pipe or broken head) and can automatically shut down irrigation to stop water waste.
  • Low/No Flow Alerts: Notifies you if a zone has low flow or no flow compared to expected usage—often caused by clogs, pressure problems, or valve issues.
  • Smart Integration: When paired with your Wi-Fi controller, the system can automatically shut off zones if a leak or abnormal flow is detected, protecting your property and saving money.
  • Off-Cycle Monitoring: Detects water flow when no zones are running, which usually means a leak or stuck valve.
  • Usage Tracking: Records detailed water use by zone and overall system, giving you insight into efficiency and potential savings.
  • Installation:  Installed below grade in a valve box.
  • FREE 24/7 MONITORING!!!!!

Bottom Line:
The HC Flow Meter acts like a security system for your irrigation—helping you avoid costly water bills, protect your landscaping investment, and maintain peak system performance.

Product Link

price range

810.51

fertigation tank

Highly Recommended Add On - When was the last time you fertilized your turf, trees and plants?

The EZ-FLO Fertigation System automatically feeds fertilizer and liquid treatments through your irrigation system, delivering precise nutrients directly to your lawn and plants.

Benefits for You:

  • Healthier Lawn & Plants: Provides a steady supply of nutrients for stronger growth, deeper color, and vibrant landscapes.
  • Even Distribution: Ensures every zone receives exactly the right amount of fertilizer—no missed spots or uneven results.
  • Convenient & Time-Saving: Automates fertilization—no hand-spreading or mixing required.
  • Eco-Friendly Efficiency: Applies nutrients in low doses with each watering, reducing runoff and environmental impact.
  • Low Maintenance: 1.5-gallon tank holds multiple treatments—simply refill as needed.

Bottom Line:
Transforms your irrigation system into a professional feeding system—keeping your lawn and landscape healthy, lush, and beautiful with minimal effort.

Product Link for Fertigation Tank to AIM web page

price range

990.00

soil sensor

Recommended Add On

A Soil Moisture Sensor measures the moisture level in your soil and communicates with your controller to irrigate only when your plants actually need water.

Benefits for You:

  • Water Savings: Prevents unnecessary watering by only running your system when the soil is dry.
  • Healthier Plants: Helps maintain optimal moisture levels, reducing stress on plants and turf.
  • Smart Automation: Works with your Wi-Fi controller to automatically adjust schedules based on real-time soil conditions.
  • Environmental Friendly: Reduces water waste while keeping your landscape thriving.

Bottom Line:
Keeps your lawn and landscape perfectly watered—saving money, water, and effort while protecting your plants.

price range

315.00

master valve

Highly Recommended Add On - especially if you are on a well

A Master Valve is installed at the main line of your irrigation system to control the flow of water to the entire system.

Benefits for You:

  • Leak Protection: Automatically stops water to the entire system if a major leak occurs downstream, helping prevent water damage.
  • Enhanced Safety: Works with your Wi-Fi controller and flow meter to shut down the system in case of abnormal flow or emergency.
  • Peace of Mind: Provides an extra layer of protection for your property and landscaping.

Bottom Line:
Acts as a “fail-safe” for your irrigation system—protecting your home, lawn, and investment by stopping water flow when something goes wrong.

price range

150.00

Ready to install an irrigation system designed to work properly from day one?
Schedule a consultation today and get clear guidance without the guesswork.

Service name

Standard Irrigation System

price range

Even our standard system is premium

Includes Hunter Wi-Fi controller, rain sensor, waterproof wire connections, pressure regulator valve (if needed) and backflow assembly.

Standard features you get with AIM (that others often charge extra for):
Backflow insulation bag, rain sensor, hard-wired Wi-Fi controller, and high-efficiency nozzles.

We will determine what back flow style (pressure vacuum breaker or reduce pressure assembly) is best to keep you drinking water safe.

4004.02

Highly Recommended Add On

The Hunter HC Flow Meter is designed to protect your irrigation system by continuously monitoring water use. It connects with your Wi-Fi controller to provide real-time alerts and automatic safeguards.

Benefits for You:

  • Leak Protection: Detects unusually high flow (burst pipe or broken head) and can automatically shut down irrigation to stop water waste.
  • Low/No Flow Alerts: Notifies you if a zone has low flow or no flow compared to expected usage—often caused by clogs, pressure problems, or valve issues.
  • Smart Integration: When paired with your Wi-Fi controller, the system can automatically shut off zones if a leak or abnormal flow is detected, protecting your property and saving money.
  • Off-Cycle Monitoring: Detects water flow when no zones are running, which usually means a leak or stuck valve.
  • Usage Tracking: Records detailed water use by zone and overall system, giving you insight into efficiency and potential savings.
  • Installation:  Installed below grade in a valve box.
  • FREE 24/7 MONITORING!!!!!

Bottom Line:
The HC Flow Meter acts like a security system for your irrigation—helping you avoid costly water bills, protect your landscaping investment, and maintain peak system performance.

Product Link

810.51

Highly Recommended Add On - When was the last time you fertilized your turf, trees and plants?

The EZ-FLO Fertigation System automatically feeds fertilizer and liquid treatments through your irrigation system, delivering precise nutrients directly to your lawn and plants.

Benefits for You:

  • Healthier Lawn & Plants: Provides a steady supply of nutrients for stronger growth, deeper color, and vibrant landscapes.
  • Even Distribution: Ensures every zone receives exactly the right amount of fertilizer—no missed spots or uneven results.
  • Convenient & Time-Saving: Automates fertilization—no hand-spreading or mixing required.
  • Eco-Friendly Efficiency: Applies nutrients in low doses with each watering, reducing runoff and environmental impact.
  • Low Maintenance: 1.5-gallon tank holds multiple treatments—simply refill as needed.

Bottom Line:
Transforms your irrigation system into a professional feeding system—keeping your lawn and landscape healthy, lush, and beautiful with minimal effort.

Product Link for Fertigation Tank to AIM web page

990.00

Recommended Add On

A Soil Moisture Sensor measures the moisture level in your soil and communicates with your controller to irrigate only when your plants actually need water.

Benefits for You:

  • Water Savings: Prevents unnecessary watering by only running your system when the soil is dry.
  • Healthier Plants: Helps maintain optimal moisture levels, reducing stress on plants and turf.
  • Smart Automation: Works with your Wi-Fi controller to automatically adjust schedules based on real-time soil conditions.
  • Environmental Friendly: Reduces water waste while keeping your landscape thriving.

Bottom Line:
Keeps your lawn and landscape perfectly watered—saving money, water, and effort while protecting your plants.

315.00

Highly Recommended Add On - especially if you are on a well

A Master Valve is installed at the main line of your irrigation system to control the flow of water to the entire system.

Benefits for You:

  • Leak Protection: Automatically stops water to the entire system if a major leak occurs downstream, helping prevent water damage.
  • Enhanced Safety: Works with your Wi-Fi controller and flow meter to shut down the system in case of abnormal flow or emergency.
  • Peace of Mind: Provides an extra layer of protection for your property and landscaping.

Bottom Line:
Acts as a “fail-safe” for your irrigation system—protecting your home, lawn, and investment by stopping water flow when something goes wrong.

150.00

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Brad running through the irrigation inspection checklist
New homeowners, beware!

Don't Risk Costly Repairs

Neglected irrigation systems can lead to $$$ in repairs. We've got you covered with our 20-point inspection, including:

  • High & Low Voltage Checks
  • Water Pressure & Volume Safety
  • Component Installation
  • Proper Location Setup