Sprinkler System Start

Sprinkler System Turn On Services in Long Island, NY

As spring approaches in Long Island, NY, many homeowners start thinking about their lawns and gardens. One of the most important tasks is turning on the sprinkler system.

Turning on a sprinkler system in Long Island, NY might seem like a daunting task, but with the right knowledge and tools, it can be quite straightforward. Whether you choose to do it yourself or hire the team at Brookhaven Irrigation, make sure your system is ready for spring to keep your lawn looking its best. We proudly serve residents throughout Long Island, NY, including:

  • Suffolk County
  • Nassau County
  • Brookhaven
  • The Hamptons

Here we’ll guide you through the process of a sprinkler system turn on, covering everything from the main valve to the sprinkler heads.

When to De-Winterize Your Irrigation System

The best time to de-winterize your irrigation system is when the threat of frost has passed. In Long Island, NY, this typically happens in late April or early May. Turning on your sprinkler system too early could result in broken pipes due to cold weather.

To de-winterize your system, you’ll first need to locate the main shut off valve, which might be in a crawl space or near the water line. Then, slowly open the main valve to avoid a sudden rush of water that could cause a water hammer.

Locating and Testing the Main Valve

The main valve is usually located in a valve box at ground level. This valve controls the water flow to your entire sprinkler system. Start by opening the main valve bleeder cap, then slowly open the main valve using a sprinkler valve key or a flathead screwdriver.

Next, perform a system test. Open one zone at a time to check for leaks or damaged sprinkler heads. If you notice wet areas or water rushing from a pipe, you may have a leak.

Checking the Vacuum Breaker and Test Valves

The vacuum breaker is an essential part of your sprinkler system. It prevents water from flowing back into the house’s water supply. To test the vacuum breaker, open the two test valves and observe the water flow. If water flows out of the test valves, the vacuum breaker is working properly.

Inspecting the Sprinkler Heads and Zones

Inspect each sprinkler head in all the sprinkler zones. Look for any signs of winter damage, such as cracked or broken sprinkler heads. Also, check the spray pattern of each head. If a head is not spraying correctly, it might need to be replaced.

Turning on a Sprinkler System: DIY vs. Hiring a Pro

While some homeowners might feel comfortable turning on their sprinkler systems, others might prefer hiring a professional. Brookhaven Irrigation has the expertise to handle any issues that might arise during the process, such as broken pipes or damaged sprinkler heads. We can also provide sprinkler repairs if necessary.

Your Sprinkler System Is Ready for Spring

Once you’ve checked all components of your sprinkler system, it’s time to let it run. Start with a short cycle for the first watering. Observe the system for a few minutes to ensure everything is working properly. If there are no issues, your sprinkler system is ready for spring!

Best Sprinkler System Turn On Services

For those who prefer professional assistance, Brookhaven Irrigation in Long Island, NY offers sprinkler system turn on services. We have experienced technicians who can efficiently and effectively get your system up and running.

Brookhaven Irrigation: Premier Sprinkler System Turn On Services in Long Island, NY

Among these companies, Brookhaven Irrigation stands out as a premier service provider. In addition to sprinkler system turn on, we also offer sprinkler installation, sprinkler renovations and upgrades, and landscape lighting services. You can easily request a quote on our website. Contact our team today!


While it’s possible to simply turn on your sprinklers, it’s important to ensure your irrigation system is functioning correctly and optimally. At Brookhaven Irrigation, we recommend having a professional assess your system for any necessary adjustments, repairs, or maintenance needs to ensure the optimal health of your landscape. Additionally, proper scheduling and watering techniques will depend on the type of grass, soil, and the current weather conditions, especially in the Long Island area.

In Long Island, it’s generally recommended to activate your sprinkler system in the spring, typically late April or early May, when the danger of frost has passed. However, the exact timing can vary based on the local climate and weather conditions each year. Brookhaven Irrigation provides services to ensure your sprinkler system startup is smooth and timely, promoting a lush and healthy lawn throughout the warmer months.

The frequency of watering grass on Long Island depends on several factors including the type of grass, the age of the lawn, the weather, and soil conditions. Generally, a lawn needs about 1 to 1.5 inches of water per week, including rainfall. This usually means watering 2-3 times per week. However, during hotter and drier periods, additional watering may be necessary. Brookhaven Irrigation specializes in customizing watering schedules for each lawn’s specific needs.

In New York, it’s recommended to have your sprinkler system professionally inspected at least once per year. This should ideally happen in the spring, at the start of the watering season, to ensure that the system is working properly after the winter months. Additional inspections may be needed throughout the year if you notice any problems or changes in your system’s performance. Brookhaven Irrigation offers comprehensive sprinkler system inspections and maintenance services to keep your system in peak condition.

At Brookhaven Irrigation, we recommend conducting maintenance checks on your irrigation system at least twice per year: once when you turn on your sprinkler system in the spring and once when you winterize it in the fall. Regular maintenance can help detect and address minor issues before they turn into costly repairs. However, if you observe any irregularities with your system, such as uneven watering, soggy areas, or high water bills, it’s advised to schedule a maintenance check as soon as possible. Regular maintenance will ensure the efficiency and longevity of your irrigation system.