Landscaping services
Irrigation Systems in Southampton, NY
Free quotes for irrigation systems in Southampton, NY.
Irrigation systems in Southampton, NY are the buried lines, valves, heads and drip tubing that water a property on a schedule, and they need care here because the water comes from Long Island's sole-source aquifer, the Suffolk County Water Authority (SCWA) publishes watering days and hours, and a backflow device on the line may need a test every year. A backflow preventer is the valve assembly that keeps irrigation water from flowing back into the drinking supply. We install new systems, add drip lines and zones to old ones, fit smart controllers and rain sensors, and handle the spring start-up and the fall blowout. Odd/even watering is SCWA's schedule: homes with odd addresses water on odd calendar days and homes with even addresses on even days, with a daily no-watering window from 10 a.m. to 4 p.m.
Typical published range
$1,636 to $3,595 for a professionally installed sprinkler system (Angi, national, updated July 2026)
Angi's sprinkler page (updated July 2026) puts professional installation at $1,636 to $3,595, a one-zone system at $500 to $1,000 plus about $1,000 for each added zone, and an underground system at $3,480 to $6,800 for 1/2 acre or $6,960 to $13,600 for 1 acre; it says about $800 of a project goes to plans, inspections, permits and the backflow preventer. HomeGuide (February 3, 2026) gives $600 to $2,000 per zone and $8,000 to $20,000 for 1 acre. For drip, HomeGuide (August 22, 2025) gives $300 to $1,200 per zone above ground, and Angi gives $450 to $650 for 1/4 acre. The Bureau of Labor Statistics put the national mean wage for landscaping and groundskeeping workers at $20.33 an hour in May 2025. All are national figures; no survey publishes a Long Island price. Our published cost ranges compare them.
Service is priced by the visit. HomeGuide (February 3, 2026) gives $50 to $150 to winterize up to 12 zones, plus $5 to $10 per added zone, $60 to $125 for a spring start-up, and $60 to $150 for an annual backflow test where the water company requires one. Angi (updated July 2026) puts sprinkler repairs at $130 to $400, and Fixr (January 2025) gives $200 to $500 to upgrade to smart irrigation. The tax line splits cleanly. New York's Publication 862 lists the original installation or complete replacement of an underground lawn sprinkler system as a capital improvement, so you sign Form ST-124 and pay us no tax on that job. Repairing or replacing components is taxable, and Tax Bulletin TB-ST-505 lists repairing or opening and closing sprinkler systems as taxable, at Suffolk County's 8.75 percent rate from Publication 718.
We lay a system out by zone, the group of heads or drip lines one valve runs at a time. Rotor zones, with heads that turn a single stream across a wide radius, water open lawn; spray zones, with fixed heads that throw a fan over a short radius, water small lawns and strips; drip lines, tubing with emitters at the root zone, water beds, hedges and foundation plantings without wetting leaves or walks. Each zone gets its own run time, because Suffolk County's Healthy Lawns guidance says sandy soils do better with smaller amounts more often. A smart controller, a timer that adjusts watering to local weather and soil conditions, runs the schedule; SCWA says one saves the average home up to 15,000 gallons a year. A rain sensor, a switch that shuts the system off during a storm, sits on the controller.
Water rules come from the supplier, not the Town or Village codes, neither of which has an irrigation, rain-sensor or watering-hour chapter. If SCWA supplies you, its odd/even days and daily no-watering window set the schedule we program; Hampton Bays is served by the Town-run Hampton Bays Water District, which runs its own odd-even program. The Town reaches irrigation through zoning: in the Aquifer Protection Overlay District, which applies outside the incorporated villages, fertilized vegetation, defined to include planting that needs irrigation, may not exceed 15 percent of a lot (section 330-68). In the Village of Southampton, irrigation lines under the street right-of-way need a Superintendent of Public Works permit (section 95-7B(3)). The season runs between freezes: spring start-up after the last one and the fall blowout before the first, by NOAA's 1991-2020 normals.
Two South Fork facts sit behind every schedule we write. The aquifer: Long Island's ground water is classified as a sole-source aquifer, and SCWA reported in 2021 that 70 percent of the water it pumps is for outside use, most of it lawn irrigation; in June 2026 it pumped a record 11.15 billion gallons. The calendar: 54.8 percent of the Village of Southampton's housing units were seasonal or occasional homes in the Census Bureau's ACS 2020-2024 estimates, so a system often runs with no one home to see a broken head or a zone watering in the rain. A smart controller, a rain sensor and a mid-season check close that gap. To start, tell us your water supplier, zone count and controller through our quote form.
Signs an irrigation system needs service
A system that runs badly shows it on the ground. These are the conditions we look for on a service visit, each with the first cause we check; most can be seen from the house or the walk without opening a valve box.
- A zone that floods the walk, drive or house wall, from a head knocked out of line or an arc set wider than the bed.
- Brown patches in August inside a green lawn, from a head that no longer reaches or a run time too short for sand.
- Sprinklers running in the rain, which means the rain sensor is missing, failed or disconnected from the controller.
- Water on between 10 a.m. and 4 p.m., the window SCWA lists as no-watering, from a controller schedule that needs resetting.
- A soggy patch or a sunken spot over a line, the mark of a broken pipe or a leaking valve.
- Leaf spots on boxwood that spray heads wet each evening, since Cornell Cooperative Extension ties boxwood blight to how long foliage stays wet.
- An SCWA notice that a backflow test is due on a device installed for a hazardous connection, with 60 days to test before a 15-day termination notice.
Most of these are repairs priced per visit and taxed as maintenance under TB-ST-505. Two can point to a design change instead: a lawn that browns in one area may need its zone split, and beds wetted by spray heads may belong on drip lines.
Zones, run times and sandy soil: how we lay out a system
Zone layout starts with the plants and the sun, not the pipe. Lawn and beds go on separate valves, sun and shade on separate zones, and drip lines run under hedges and foundation plantings. Soil sets the run times. The Natural Resources Conservation Service describes the Plymouth and Carver series, sandy soils extensive on Long Island, as excessively drained, and Suffolk County's Healthy Lawns guidance says soils with clay and organic matter hold more water, while sandy soils do better with smaller amounts more often.
The same guidance says lawns need about 1 inch or more of water a week, depending on grass, soil and weather, and suggests watering in the early morning, between 4:00 and 8:00 a.m., when little is lost to evaporation. Cornell Cooperative Extension of Nassau County favors deep, infrequent watering to a depth of 6 inches, so on sand we reach that depth in short cycles rather than one long run. Grass matters too: the Nassau sheet calls fine fescue extremely drought tolerant and says it dislikes excessive irrigation, and credits tall fescue's deep root system with extra drought tolerance. Our lawn care schedule covers the grasses; we set each zone with a tuna-can test.
SCWA watering days, the 10 a.m. to 4 p.m. window and the 2026 alert
SCWA's odd/even schedule is set by house number: addresses ending in 1, 3, 5, 7 or 9 water on odd calendar days, and those ending in 0, 2, 4, 6 or 8 on even days. Its conservation page explains the daily window: avoid watering between 10 a.m. and 4 p.m., when most water is lost to evaporation. It adds that odd/even watering reduces peak demand during summer mornings. Summer 2026 showed why. SCWA pumped a record 11.15 billion gallons in June, peaked at 540,000 gallons per minute, and blamed heavy overnight and early-morning irrigation demand for leaving storage tanks low each day.
In July it declared a Stage 1 Water Alert for the East End towns, under which odd and even addresses could water only on matching days and no lawn watering was allowed from 10 a.m. to 4 p.m.; SCWA rescinded it for the Town of Southampton on July 31, 2026. In Hampton Bays, the Town-run water district asked in a June 24, 2021 notice for systems to start between 9:00 p.m. and 11:00 p.m. We program each controller to its address's days and stagger start times across zones. Our rules and permits guide sets the water rules beside the Town and Village codes.
The annual backflow test, spring start-up and fall blowout
SCWA's Rules and Regulations (revised June 1, 2025, Section 7) require complete containment of water on a customer's property by an approved backflow device, in line with State Sanitary Code section 5-1.31. Its cross connection policy sets the device by hazard: a dual check valve at the meter for ordinary residential service, and an RPZ, a reduced pressure zone device, where chemicals are fed through an irrigation system. Required devices are tested every year at the customer's expense by a tester who holds New York State backflow certification and the Suffolk County Consumer Affairs license for backflow testing, and results go in through SCWA's online portal. HomeGuide says a residential test takes about 20 to 30 minutes.
Spring start-up, turning the system back on, checking every head and resetting the controller, follows the last freeze: NOAA's 1991-2020 normals give a 50 percent chance of it by April 23 at Bridgehampton and by May 7 at Westhampton Gabreski Airport. The fall blowout, or winterization, clears the lines with compressed air so no water freezes in them, and goes before the first freeze, October 24 and October 14 at those stations. Both visits are taxable maintenance.
Drip lines, spray zones or rotor zones
The choice is made bed by bed and lawn by lawn, and one controller can run all three. It turns on what is being watered, the soil, and how much wet foliage and runoff you will accept. On an older system there is a fourth choice: retrofit before you replace.
Drip lines for beds and hedges
Drip irrigation puts water at the roots and keeps foliage dry, which matters for boxwood, where Cornell ties blight to long wet periods, and for privet, which the Nassau privet fact sheet says to water deeply in drought; our privet hedge care page covers the hedge side. Drip also keeps water off walks, walls and windows.
Spray zones for small lawns
Fixed spray heads throw a fan over a short radius, for small lawns, strips and tight corners. On sandy soil we split their run time into short cycles, as Suffolk County's Healthy Lawns guidance suggests, and set the arcs to stay off walks and walls. The tuna-can test from the same guidance, cans set out across a zone to catch what it puts down, gives each zone's rate.
Rotor zones for open lawn
Rotors turn a single stream across a wider radius, for open lawn. Cornell Cooperative Extension of Nassau County favors deep, infrequent watering to a depth of 6 inches, 1 to 2 inches a week from rain and irrigation together, and the Peconic Estuary Partnership advises no more than 1.5 inches a week beyond rainfall. We set rotor run times to those figures and to the soil.
Retrofit before replacing
An older system can be brought up to date without digging: a smart controller and a rain sensor, both of which SCWA credits to your water account for devices bought on or after February 1, 2023. Replacing the whole system is a capital improvement under Publication 862; swapping components is taxable.
We draw the zones on a plan with head types, drip runs and the controller location. We write each zone's run time into the handover, so whoever opens the system next spring starts from the settings we left rather than from the controller's factory program.
Questions
Irrigation Systems FAQs
What days can I water my lawn in Southampton?
If SCWA supplies your water, its odd/even schedule goes by house number: odd addresses water on odd calendar days and even addresses on even days, with a daily no-watering window from 10 a.m. to 4 p.m. SCWA's page does not say the schedule is mandatory, but during its Stage 1 Water Alert in July 2026 those were the rules for its customers in the Town of Southampton until July 31. Hampton Bays has its own water district, which runs an odd-even program.
Does my sprinkler system need a backflow test every year?
If your service has a backflow device SCWA requires, yes: SCWA calls for an annual test at the customer's expense by a tester with New York State certification and the Suffolk County backflow license, with results filed online. An RPZ is required where chemicals are fed through the system or a private well is connected to the home; ordinary residential service needs a dual check valve at the meter. HomeGuide's national survey (February 3, 2026) puts annual testing at $60 to $150.
When should I winterize my sprinkler system in Southampton?
Before the first freeze. NOAA's 1991-2020 normals give a 50 percent chance of the first fall freeze by October 24 at Bridgehampton and by October 14 at Westhampton Gabreski Airport, so we start booking blowouts in early October. HomeGuide's national survey (February 3, 2026) puts winterizing at $50 to $150 for up to 12 zones, and HomeAdvisor's average (updated June 2026) is $93. It is taxable maintenance under TB-ST-505.
Is a new sprinkler system taxable in New York?
Not to you, if it is an original installation or a complete replacement: Publication 862 lists underground lawn sprinkler systems among capital improvements, so you sign Form ST-124 and we collect no tax, though we pay tax on the materials. Repairs and component replacements are taxable, and TB-ST-505 lists opening and closing sprinkler systems as taxable maintenance, at Suffolk County's combined 8.75 percent rate from Publication 718.
Does SCWA give a credit for a smart controller?
Yes. SCWA gives a $150 account credit for a smart irrigation controller and $75 for a rain sensor, capped at $250 per account every three years and at the purchase price; devices must be bought on or after February 1, 2023. SCWA says a smart controller saves the average home up to 15,000 gallons a year and a rain sensor up to 2,500 gallons a season. Fixr's national survey (January 2025) puts a smart irrigation upgrade at $200 to $500.
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