Specialist answer // Sprinklers & Coverage

How do I fix a broken sprinkler head?

Replacing a broken sprinkler head is a simple DIY task that involves unscrewing the damaged unit and installing an exact match, which can save thousands of gallons of water.

Reviewed by Richard Mora, owner Updated Aug. 25, 2026 4 min. read

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Identifying a Broken Sprinkler Head

A broken sprinkler head is a common issue that can waste significant amounts of water and damage your landscape. According to the EPA WaterSense program, missing or broken sprinkler heads can be hard to find because most systems run overnight or early in the morning. Running an irrigation system with damaged heads can cause overflowing and flooding, leading to water waste and potential property damage.[1]

The Arizona Municipal Water Users Association (AMWUA) notes that a single broken sprinkler head can waste up to 7 gallons of drinking water per minute. Signs of a broken head include water geysers, localized flooding, or areas of the lawn that are inexplicably dry because the water is not being distributed properly. Regularly inspecting your system while it is running can help you identify these issues early.[2]

Steps to Replace a Sprinkler Head

Replacing a broken sprinkler head is a straightforward process. First, ensure the water supply to the system is turned off. Carefully dig a small hole, about 5 to 6 inches deep, around the broken head to expose the riser. Unscrew the broken sprinkler head counterclockwise. It is highly recommended to take the broken head to a local hardware store to ensure you purchase an exact replacement in terms of size, brand, and spray pattern.[3]

Before installing the new head, briefly turn on the water to flush out any dirt or debris that may have fallen into the line during the removal process. Wrap the threads of the riser with plumber's tape to ensure a watertight seal, then screw the new sprinkler head on clockwise until it is hand-tight. Finally, adjust the nozzle to direct the spray toward your landscape and away from hardscapes like sidewalks or driveways.[3][1]

When to Call a Phoenix Irrigation Pro

While replacing a single broken sprinkler head is a manageable DIY project for many homeowners, certain situations require professional expertise. If you notice constant water leaks or pooling water when the system is turned off, this often indicates a faulty valve or a cracked underground pipe rather than just a broken head. These issues can be complex to locate and repair without specialized tools and knowledge.[3]

Additionally, ensuring proper head-to-head coverage and optimal water pressure is crucial for water conservation in the Phoenix area. If you are unsure about selecting the correct replacement head, or if your system continues to experience pressure issues after a replacement, it is best to consult a certified irrigation professional. They can perform a comprehensive system audit and ensure your irrigation system operates efficiently.[1]

Safe first look

What a homeowner can check first.

These observations can make the service conversation clearer. Stop if water is uncontrolled, wiring is exposed, or the next step requires opening pressurized components.

Turn off the water supply to the sprinkler system

Photograph the controller, valve box, wet area, or failed component for the service technician.

Unscrew the broken head counterclockwise from the riser

Flush the line briefly to remove any dirt or debris before installing the new head

Screw the new sprinkler head onto the riser and adjust the spray direction

Professional threshold

Call an irrigation specialist when:

Call (602) 905-4494

The broken head is on a high-pressure line.

Water continuously leaks even when the system is off, indicating a valve issue.

You suspect an underground pipe is cracked or damaged.

You cannot identify the correct replacement head or nozzle for proper coverage.

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Useful answers around this issue.

These answers provide general context. The actual cause still depends on the system and what happens when the affected zone is tested.

Why is my sprinkler head leaking when the system is off?

This usually indicates a problem with the sprinkler valve, not the head itself, and may require replacing the valve or solenoid.

How do I know what size sprinkler head to buy?

The easiest way is to take the broken sprinkler head to the store and match the brand, model, and nozzle spray pattern.

Can I just replace the inside of the sprinkler head?

Yes, if the outer casing is intact, you can often unscrew the cap and replace just the internal spring and nozzle mechanism.

Sources and review

Where the technical guidance comes from.

This article was reviewed for service accuracy by Richard Mora. Sources are provided for factual context; product-specific instructions should still follow the installed manufacturer’s documentation.

[1]
Sprinkler Spruce-UpUS EPAOpen source
[2]
Summer Landscaping Mistakes That Hurt Your PlantsAMWUAOpen source
[3]
Residential Irrigation SupportHunter IndustriesOpen source

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Identifying a Broken Sprinkler Head

Steps to Replace a Sprinkler Head

When to Call a Phoenix Irrigation Pro

What a homeowner can check first.

Call an irrigation specialist when:

Useful answers around this issue.

Related irrigation answers.

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Why does a sprinkler head leak when the system is off?

What are the most common sprinkler problems in Arizona?

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Where the technical guidance comes from.

Get a clear onsite diagnosis.