Your Guide to Expert Sprinkler Repair in McKinney, TX

A healthy, green lawn is a source of pride for any McKinney homeowner, but keeping it that way during our hot Texas summers requires a reliable sprinkler system. At Mr. Sprinkler Repair, we specialize in ensuring your sprinkler system is up to the task. When that system fails, it can lead to brown patches, wasted water, and even serious safety concerns. Mr. Sprinkler Repair in McKinney is here to help diagnose and fix these issues quickly and effectively. Finding the root cause of the problem can be frustrating, from a single zone that won’t turn on to skyrocketing water bills.

At Mr. Sprinkler Repair, we’ve seen it all. We understand the unique challenges our local clay soil and intense heat present for irrigation systems. This guide will walk you through four common sprinkler issues we see right here in McKinney and explain how professional diagnosis and repair can restore your system’s efficiency and protect your landscape investment.

Is Your Water Supply Safe? The Hidden Danger of Backflow

One of the most critical components of your irrigation system is one you may have never noticed: the backflow preventer. This device is essential for protecting your family’s health.

A backflow preventer is a one-way valve that ensures water from your sprinkler system never flows backward into your home’s potable water lines. Without a functioning one, fertilizer, pesticides, and soil bacteria from your lawn could be siphoned into the water you drink, cook with, and bathe in.

Symptoms of a Backflow Problem:

  • Cloudy or discolored water coming from your faucets.
  • An unusual taste or smell in your drinking water.
  • Visible leaks or constant dripping from the backflow prevention assembly itself.


Risks of a Contaminated Water Supply:

The primary risk is severe illness from ingesting contaminated water. This is not just a minor inconvenience; it’s a serious health and safety hazard. Furthermore, cities like McKinney require functional backflow preventers to meet municipal codes. A faulty device can lead to fines and mandatory, immediate repairs.

Our licensed technicians provide expert sprinkler repair in McKinney, including annual backflow testing, repair, and replacement. We ensure your system is not only working but is fully compliant and, most importantly, safe for your family.

Sticking Rotary Heads: The Cause of Dry Spots and Uneven Coverage

Does your lawn have mysterious dry, brown patches even though your sprinklers run on schedule? The culprit is often a sticking rotary sprinkler head. These heads are designed to rotate and cast water in a wide arc, but when they get stuck, they water one small area excessively while neglecting the rest of their zone.

Symptoms of Sticking Rotary Heads:

  • Donut-shaped patterns of green and brown grass.
  • Sprinkler heads that don’t turn or get stuck in one position.
  • Puddles forming around the base of a sprinkler head.
  • Noticeably dry areas within a sprinkler zone.


Common Causes:

  • Debris: Dirt, sand, and grass clippings can get lodged in the head’s internal gears.
  • Wear and Tear: Over time, the plastic or metal components inside the head simply wear out.
  • Low Water Pressure: Insufficient pressure can prevent the head from having the force needed to rotate.
  • Damage: Lawn mowers and edgers are the most common culprits for damaging sprinkler heads.


Our repair process for a sticking rotary head is thorough. We don’t just swap it out; we investigate the cause. We’ll flush the line to clear debris, check the zone’s water pressure, and replace the faulty head with a durable, high-quality model. We then adjust the new head’s arc and distance to ensure perfect, head-to-head coverage for a uniformly green lawn.

Fixing Sprinkler Zone Overlap and High Water Bills

If your water bill seems to climb higher every summer, inefficient watering is a likely cause. A common issue we find during a sprinkler inspection is significant sprinkler zone overlap. While a small amount of overlap is necessary for even coverage, too much means you are dumping gallons of wasted water onto the same spots, leading to runoff and stressed plants.

This is especially problematic in McKinney, where our dense clay soil doesn’t absorb water quickly. Over-watering creates a soggy mess, starves plant roots of oxygen, and wastes a precious resource.

Symptoms of Excessive Overlap:

  • Mushy, waterlogged soil in certain areas.
  • Water running off your lawn and onto sidewalks or streets.
  • Fungus or mushrooms growing in parts of the lawn.
  • Unusually high water bills without a known leak.


Solutions for Overlapping Zones:

Fixing this issue requires a systematic approach. Our technicians can reprogram your irrigation controller to adjust run times for each zone, ensuring they only get the water they need. In some cases, we may:

  • Adjust spray patterns and distances on existing heads.
  • Replace inefficient nozzles with modern, water-saving alternatives.
  • Relocate sprinkler heads for more effective geometric placement.


By optimizing your system, we can drastically reduce water waste, lower your monthly bills, and promote deeper, healthier root growth for a more drought-resistant lawn.

Dead Zones and Disconnected Wires

You turn on your sprinklers, and one or more zones fail to activate. The controller says it’s running, but the heads never pop up. This frustrating scenario often points to an electrical issue, such as a disconnected or broken wire.

Your sprinkler system relies on a low-voltage electrical signal sent from the controller to each valve. A break anywhere along that wire will prevent the valve from opening.

Symptoms of an Electrical Fault:

  • A specific zone (or multiple zones) fails to turn on.
  • The irrigation controller shows a “fault” or “err” message.
  • Sprinklers in a zone won’t shut off, indicating a shorted wire or bad solenoid.


Why Wires Disconnect:

  • Shovel Damage: The most common cause is accidental cuts from digging in the yard.
  • Corrosion: In our humid climate, improperly sealed wire connections will corrode and fail.
  • Pest Damage: Rodents can chew through underground wiring.
  • Wear and Tear: Wires can degrade over time due to ground shifting and moisture exposure.


Finding the exact location of a break in a buried wire can feel like searching for a needle in a haystack. But our sprinkler wiring repair service uses specialized tools to locate the fault quickly and accurately. We don’t use simple electrical tape; we use waterproof connectors to create a durable, long-lasting splice that will withstand the elements for years to come.

Your Trusted Partner for Sprinkler Repair in McKinney

At Mr. Sprinkler Repair, we are more than just handymen; we are irrigation specialists dedicated to serving our neighbors in McKinney. We are proud to be a fully licensed and insured company, giving you complete peace of mind. We stand by our work with a comprehensive parts and labor warranty and are committed to providing fast, reliable service, often with same-week appointments available.

Don’t let a faulty sprinkler system ruin your lawn or drain your wallet. Let our experts diagnose the problem and provide a lasting solution.

Frequently Asked Questions

  1. Question: How often should I get a sprinkler inspection in McKinney?
    Answer: We recommend a full professional sprinkler inspection at least once a year, ideally in the spring before you begin heavy summer watering. This allows us to catch issues like leaks, broken heads, and backflow problems early.

  2. Question: My drinking water looks cloudy. Could it be my sprinkler system?
    Answer: Yes, absolutely. Cloudy, discolored, or bad-tasting water is a major red flag for a backflow issue. You should stop using the water immediately and call us for an emergency backflow test to ensure your potable water supply is not contaminated.

  3. Question: Why is only one of my sprinkler heads not rotating?
    Answer: If a single rotary sprinkler head is stuck, it’s almost always an issue with the head itself. Debris is the most likely cause, but the internal gear drive may also be worn out. Our technicians can clean or replace it and check the zone’s pressure to prevent it from happening again.

  4. Question: Can you fix sprinkler wiring without digging up my entire yard?
    Answer: Yes. We use professional-grade electronic fault locators to pinpoint the exact location of a wire break. This allows us to make a precise, targeted repair with minimal disruption to your lawn and landscaping.

Get a Free Sprinkler Inspection and Water Usage Audit

Ready to get your sprinkler system running perfectly? Mr. Sprinkler Repair is here to help our McKinney neighbors save water, money, and their lawns. We are offering a complimentary, no-obligation sprinkler inspection and water usage audit for a limited time.

Call us today at 972-736-9888 or visit our website to Book Now!