Sprinkler Systems near you

Most repair calls are really hardware-matching calls. Sprinkler types are not interchangeable, and mixing them inside one zone is the most common reason half a lawn is soaked and the other half is dry.

Every nozzle is designed to operate in a pressure band, and above it the stream breaks into fine droplets that drift and evaporate instead of landing. That is what the fog around a spray head actually is: water you paid for, leaving. EPA's audit guidelines set the test at plus or minus 10 percent of the manufacturer-recommended operating pressure for the emission device in question, measured on a representative zone of each irrigation type, which is a far more specific check than the usual glance at the spray pattern.

The fix is usually at the sprinkler body rather than the whole system. EPA explains that the sprinkler body is the exterior shell that connects to the irrigation system piping and houses the spray nozzle that applies water on the landscape, and that some models control water pressure at the inlet to the nozzle, giving effective performance of the associated spray nozzles. Its figures for the upgrade are worth quoting to a contractor: for the average household using 50,500 gallons outdoors and operating at or above 60 pounds per square inch, labeled spray sprinkler bodies can save nearly 5,600 gallons a year, and replacing every over-pressured body nationally could save more than 31 billion gallons annually.

Low pressure is the opposite failure and just as common, usually caused by too many heads on one zone, an undersized line, a partly closed valve or a leak upstream. Its signature is a head that dribbles rather than throws, and lengthening the run time never fixes it.

An audit is a measurement, not a walk-around. EPA's approach for labeled new homes is a useful template for any system: determine lower quarter distribution uniformity using the catch-can method on the largest spray-irrigated area, over turfgrass only, and verify that it reaches 65 percent or greater; verify the system operates without leaks; verify there is no runoff or overspray leaving the property during a minimum operating duration judged appropriate for the system; and verify that a technology is present that inhibits or interrupts operation during rainfall or sufficient moisture, such as a rain sensor or soil moisture sensor.

The output should be run times per zone, not a single number for the yard. EPA's guidelines also require two schedules to be created and posted at the controller, one for the initial grow-in phase and one for the established landscape, with schedules that vary by season and comply with local water restrictions. A report that hands you a seasonal schedule per zone and the pressure readings behind it is worth paying for; one that says the system was checked and is fine is not.

EPA recognizes certification programs in three areas: irrigation auditor, for professionals who assess the proper functioning of existing systems; irrigation installation and maintenance professional, for those who install, repair and maintain systems; and irrigation designer, for those who design new ones. Asking which of the three a company holds is a quick way to find out whether the person quoting an audit actually does audits.

Replacing broken heads is the right call when the system was laid out correctly and time has simply damaged it: mower strikes, cracked bodies, worn seals, clogged nozzles. These are cheap parts and a straightforward visit, and a system that audits well between failures deserves nothing more.

Reworking a zone is the right call when the measurement says the layout is wrong. A zone that cannot reach reasonable distribution uniformity no matter how the heads are adjusted, a zone mixing rotors and sprays, a zone whose heads are spaced so far apart that dry rings are structural, or a bed being watered by lawn sprinklers because it happened to be adjacent are all design problems. Adding minutes to a badly designed zone buys a wet patch and a dry one.

Retrofits sit between the two and are often the best value: pressure-regulating sprinkler bodies where misting is the issue, rotary nozzles in a spray zone that runs off, drip conversion for beds, and a sensor that stops a cycle the landscape does not need. EPA's audit criteria include a technology that inhibits or interrupts operation during rainfall or sufficient moisture, which is one of the least expensive components in the whole system and one of the most frequently missing.

In the freezing half of the country the shutdown visit is the one that protects the whole investment. Water left in a lateral, a valve or a backflow assembly expands when it freezes and splits whatever contains it, and the assembly is usually the most expensive single component above ground. A proper shutdown closes the supply, drains or blows out the lines and protects the assembly, and a crew that rushes a blowout at too high a pressure can damage the system it was hired to save, so ask what pressure they blow at and how they protect the heads.

Start-up is the reverse and should never be a matter of switching the controller on. Pressurizing slowly avoids the surge that breaks fittings, and then every zone is run in turn so the winter's damage is found in one visit rather than discovered in July as a brown patch. This is also the sensible moment for the audit, since the catch cans and the pressure gauge are already coming out of the truck.

In the mild South and Southwest, systems run year round and the seasonal work is schedule change rather than drainage, but a hard freeze warning still means protecting exposed backflow assemblies and above-ground piping. A hose bib insulator on the assembly is a small purchase next to replacing it.

Sprinkler work is priced by how much of it is diagnosis and how much is digging. The variables are the number of zones and heads involved, whether the fault is above ground or has to be located under turf, whether the repair is a head swap or a section of lateral, whether an audit with catch cans and pressure readings is included, the type and number of components being retrofitted, how much of the yard has to be opened and restored, and whether seasonal shutdown and start-up visits are bundled into a service agreement or billed one at a time. A quote that includes locating the fault is not comparable to one that charges for it separately.

LokalMatch gets the conversation started. You describe the system once, including roughly how many zones it has, what it is doing wrong, whether you want a repair, an audit or a seasonal visit, and what your water utility allows, and irrigation and sprinkler contractors covering your area receive that request. Those interested reach out to you. Pros pay for the requests they receive and homeowners are never charged. LokalMatch does not repair sprinkler systems, does not set prices and does not vet, rank or recommend any contractor, so checking any state licence, your utility's backflow requirements and the written scope remains your responsibility.