Your irrigation system works hard behind the scenes to keep your lawn healthy, but like any mechanical system, it wears down over time. Catching problems early can save you hundreds of dollars in water waste, prevent lawn damage, and extend the life of your entire system. Here are seven warning signs that your sprinkler system needs professional attention, along with what each one means for homeowners in the DFW area.
If certain areas of your lawn are lush and green while others look parched and brown, your system has a coverage problem. This is one of the most common issues we see in Plano and the surrounding cities. The cause could be a clogged nozzle, a head that has sunk below grade, or a rotor that is no longer turning through its full arc. In North Texas, where summer temperatures routinely exceed 100 degrees, even a small gap in coverage can kill turf within a week. Walk your yard while each zone is running and look for heads that are not popping up fully, spraying in the wrong direction, or missing sections entirely. If you spot inconsistencies, a professional adjustment or head replacement will restore even coverage before the damage spreads.
Sprinkler heads should produce a smooth, consistent spray pattern. If a head is sputtering, spitting water erratically, or producing a mist instead of a defined stream, something is wrong. The most common culprit is a cracked head body, usually caused by lawn mower strikes or foot traffic. Debris lodged in the nozzle filter can also disrupt the spray. In our heavy North Texas clay soil, dirt and sand frequently work their way into the system, especially after heavy rains that shift soil around the heads. Replacing a single damaged head is quick and inexpensive, but ignoring it means that zone is wasting water and starving part of your lawn every time it runs.
If your water bill suddenly jumps without a change in your watering schedule, your irrigation system likely has a leak. Underground line breaks are common in North Texas due to the extreme expansion and contraction of our clay soil. During the dry summer months, the soil shrinks and pulls away from pipes. When the rains return, it swells and can crack PVC fittings or shift connections. A single broken lateral line can waste thousands of gallons per month. If your bill has climbed by 20 percent or more and you have not changed your watering habits, shut your system off and call for a leak detection service before the problem compounds.
Standing water in your yard after sprinklers run is never normal. Puddles can indicate a broken pipe beneath the surface, a head that is stuck in the open position, or a valve that is not closing properly. In the DFW area, soggy spots also attract mosquitoes and can lead to foundation issues if water is pooling near your home. Pay special attention to areas around valve boxes. If you see water bubbling up near a valve box or along a line path when the system is off, you likely have a mainline leak that needs immediate repair. These leaks run continuously, not just during scheduled watering, so the waste adds up fast.
Water streaming from the base of a sprinkler head, seeping around a valve box, or spraying from a cracked fitting is an obvious sign of trouble. While some minor seepage around heads is normal as the system pressurizes and depressurizes, consistent leaking during or between cycles points to a failed seal, cracked fitting, or broken riser. North Texas freeze events are a major cause of these failures. When water trapped in heads or shallow lines freezes and expands, it cracks plastic components from the inside. If your system was not properly winterized before a hard freeze, inspect every head and visible connection once temperatures warm up. Catching freeze damage early in spring prevents wasted water all summer long.
If your sprinkler heads are barely popping up or the spray distance has shortened noticeably, you are dealing with a pressure problem. Low pressure can stem from several sources. A partially closed backflow preventer valve is one of the simplest causes and is an easy fix. A leak somewhere in the system diverts water away from the heads, reducing pressure at the end of the line. Crushed or root-damaged pipes restrict flow and are more common in established neighborhoods where tree roots have had years to encroach on irrigation lines. In newer developments across Frisco, Allen, and McKinney, municipal water pressure fluctuations during peak usage can also affect sprinkler performance. If the problem is consistent across all zones, it is likely a mainline or backflow issue. If only one or two zones are affected, the problem is probably a lateral line break or a partially stuck valve.
Your irrigation controller is the brain of the system. If zones are running at odd times, skipping scheduled cycles, or not turning on at all, the controller may be failing. Power surges from North Texas thunderstorms are a leading cause of controller damage in the DFW area. Lightning does not have to strike your home directly for a surge to fry the controller board. Other signs of controller issues include a blank or flickering display, zones that run but will not shut off, or a controller that loses its programming after every power cycle. If your controller is more than eight to ten years old and acting unreliably, upgrading to a modern smart controller is often more cost-effective than repairing outdated hardware. Smart controllers also give you the benefit of weather-based adjustments and remote access from your phone.
Every one of these issues gets worse over time. A minor leak becomes a major line break. A clogged head leads to dead turf that costs hundreds to resod. A failing controller wastes water silently for months. The best approach is to address problems as soon as you notice them and to schedule a professional system inspection at least once per year, ideally in the spring before heavy watering season begins.
JC Apex Home Services provides fast, honest irrigation repair throughout Plano, Allen, Frisco, Richardson, McKinney, and the greater DFW area. We diagnose the root cause, explain your options, and fix it right the first time. Call us at (214) 770-0648 or request a free estimate to get your system back on track.