Landscaping services
Lawn Care in Southampton, NY
Free quotes for lawn care in Southampton, NY.
Lawn care in Southampton, NY is mowing, feeding, seeding and watering turf on fast-draining sandy soil over Long Island's sole-source aquifer, under a Suffolk County law that bans fertilizer on turf from November 1 to April 1. Lawns here are cool-season grasses, the fescues, Kentucky bluegrass and perennial ryegrass that Long Island lawns are seeded with. The Suffolk County Water Authority assigns watering days by house number and asks for no watering from 10 a.m. to 4 p.m. We mow weekly at a 3-inch minimum; use core aeration, pulling small plugs of soil, where traffic has left compacted soil, ground pressed dense; overseed, spreading new seed into thin turf, in the late-summer window; and feed only inside the county's season, 20 feet back from surface water.
Typical published range
$48 to $75 per week for mowing, Northeast (LawnStarter, September 9, 2026)
Lawn care is priced per visit, per application or per square foot, and the published figures are national or regional; none prices Long Island. For mowing, Angi, updated March 17, 2026, gives a $123 average within $49 to $203 a visit, and LawnStarter, updated September 9, 2026, gives $43 to $70, and $99 to $264 for 1 to 2 acres. For fertilizing, HomeGuide, dated August 4, 2025, gives $65 to $100 per application up to 10,000 square feet and $260 to $600 a year for 4 to 6 visits. HomeGuide's aeration page, dated August 13, 2025, gives $100 to $300, and its sod page, dated October 31, 2025, $1 to $2 a square foot installed. The New York, NY row in HomeGuide and Angi, $130 to $525 a month, is a New York City figure, not a Southampton price.
Lawn size sets most of the price, which is why the surveys publish by the acre and the square foot; seed, sod and fertilizer set the rest. Sales tax splits the work. New York's Publication 862 lists mowing, fertilizer, herbicide and pesticide application, reseeding or overseeding, and sodding bare spots as taxable, and TB-ST-505 adds replacing small sections of sod. A new lawn, or a complete section of one, is a capital improvement: with your signed Form ST-124 the installer pays tax on materials and collects none from you. Taxable lines carry Suffolk County's 8.75 percent under Publication 718. The Bureau of Labor Statistics gives pesticide handlers, sprayers and applicators for vegetation a national mean wage of $22.63 an hour in May 2025, and landscaping and groundskeeping workers $20.33. Published ranges for every service are on our Southampton landscaping cost page.
The grass decides the program. Cornell Cooperative Extension of Nassau County says fine fescue does well on only 1 pound of actual nitrogen per 1,000 square feet a year and is extremely drought tolerant, that tall fescue's deep root system gives it extra drought tolerance, and that Kentucky bluegrass and perennial ryegrass need more fertilizer and water. Suffolk County's Healthy Lawns program sets new-lawn mixes: 100 percent tall fescue at 7 to 10 lbs. per 1,000 square feet for a sunny, low-maintenance lawn, and 100 percent fine fescue at 4 to 5 lbs. for shade. We mow weekly at the 3-inch minimum, take no more than one-third of the leaf at a cut, and leave clippings, which Cornell says supply about a third of a lawn's nitrogen after 7 to 10 years. A soil test comes first: Long Island's sandy soils run acid unless limed, and Cornell puts the pH where nearly all nutrients are available at 6.0 to 7.0.
Fertilizer runs on county and state law. Suffolk County's Chapter 459, section 459-9, bans fertilizer on turf from November 1 to April 1 and within 20 feet of any regulated surface water, unless a continuous natural vegetative buffer at least 10 feet wide separates turf and water; each violation carries a civil penalty of up to $1,000. New York State allows phosphorus on lawns only where a soil test shows the need or on a new lawn in its first growing season, and bans fertilizer on roadways, sidewalks, parking lots and other impervious surfaces. In the Village of Southampton, a landscaper who applies fertilizer must show a Suffolk County nitrogen fertilizer turf management course certificate to register under Chapter 73, and one who uses pesticides a DEC certificate. Our rules and permits guide quotes each section.
Water is the South Fork's limit. The Suffolk County Water Authority assigns odd calendar days to odd house numbers and even days to even ones, asks for no watering from 10 a.m. to 4 p.m., and in a 2021 release said 70 percent of the water it pumps goes to outside use, most of it lawn irrigation. Suffolk's Healthy Lawns program puts a lawn's need at about 1 inch or more of water a week and notes that sandy soils hold less water than soils with clay and organic matter. July is the driest month in NOAA's 1991-2020 normals for Bridgehampton, at 3.16 inches. Ticks are the other limit: the CDC suggests a 3-foot-wide barrier of wood chips or gravel where lawn meets woods. Our irrigation systems page covers controllers and zones, and our estate maintenance agreements fold lawn care into weekly visits.
Signs a lawn needs more than mowing
A lawn on South Fork sand shows trouble quickly, because sand holds less water than soils with clay and organic matter, and the fertilizer season closes on November 1. These conditions call for a care program, not mowing alone: a soil test, a seed choice, a feeding schedule inside Suffolk County's rules and a watering plan on the Water Authority's days.
- Brown patches spread in August after July, the driest month in NOAA's 1991-2020 Bridgehampton normals at 3.16 inches, on excessively drained sand.
- Turf thins under trees where a sunny-lawn blend was sown; Suffolk County's Healthy Lawns program calls for 100 percent fine fescue on shady sites.
- Bare, hard paths cross the lawn where people, dogs and mowers travel, the compacted soil that core aeration is used to relieve.
- Patches of turf die back and you suspect grubs, the root-feeding larvae of beetles; any insecticide for them must now clear New York's neonicotinoid limits.
- The mower has been set below the 3-inch minimum Cornell Cooperative Extension of Nassau County suggests, and weeds are filling the thin spots.
- Sprinklers run at midday or every day, outside the Water Authority's odd/even days and its 10 a.m. to 4 p.m. no-watering window.
Fertilizer timing and the 20-foot setback under Chapter 459
Suffolk County's fertilizer law, Local Law No. 41-2007, now Chapter 459 of the County Code, applies to lawns in the Town of Southampton and in every one of its villages. Section 459-9 bars fertilizer on turf between November 1 and April 1, the county's fertilizer blackout, when the county says the potential for runoff and leaching is high, and within 20 feet of any regulated surface water, a term the code defines to include bays, ponds, creeks, marshes and the ocean but not artificial ponds, unless a natural vegetative buffer at least 10 feet wide stands between. New York's own ban runs from December first to April first, so the county window is the one that binds here.
Inside the season we follow the county's Healthy Lawns guidance: delay a dense lawn's first feeding to around Memorial Day, at no more than .75 lb. of nitrogen per 1,000 square feet; if a lawn is fed once a year, feed it in early September at no more than 1 lb., at least 50 percent slow-release; and stop before November 1. The Peconic Estuary Partnership asks owners in its watershed to fertilize only between April 2 and October 31, cap a single application at 0.6 pounds and the year at 1.8 pounds, and water fertilizer in within 24 hours with a quarter inch of rain or light irrigation. On a lawn that drains toward a bay, we plan to the Peconic numbers.
Core aeration and overseeding in the late-summer window
Core aeration and overseeding go together on our schedule. The aerator pulls plugs where the soil is compacted by foot traffic, play and equipment, and new seed goes into the opened, thinned turf. Suffolk County's Healthy Lawns program gives late August to late September as the period to seed on Long Island and says tall fescue is most successful when established from seed in early August; Kentucky bluegrass can also be broadcast in early spring while soil is below 50 degrees F. The county's overseeding rates per 1,000 square feet are 4 to 6 lbs. for perennial ryegrass, 6 to 8 lbs. for tall fescue, 2 to 4 lbs.
for fine fescue and 1 to 2 lbs. for Kentucky bluegrass. We topdress with 1/4 to 1/2 inch of compost, keep the seedbed moist until germination, begin mowing when seedlings reach 2 inches, and return to the regular three-inch height after three or four mowings, as the county advises. New York allows phosphorus fertilizer on newly established turf during its first growing season, so a new seeding can take phosphorus without the soil test an established lawn would need. HomeGuide's aeration page, dated August 13, 2025, puts core aeration at $100 to $300 and aerating and overseeding 10,000 square feet at $160 to $425; This Old House, updated in June 2026, puts professional reseeding at $90 to $180 per 1,000 square feet. Overseeding is taxable maintenance under Publication 862.
Watering sandy-soil lawns on the Water Authority's odd/even days
The Suffolk County Water Authority's schedule runs on the last digit of the house number: addresses ending in 1, 3, 5, 7 or 9 water on odd calendar days, those ending in 0, 2, 4, 6 or 8 on even days, and no address waters from 10 a.m. to 4 p.m., the hours SCWA says lose the most water to evaporation. SCWA's schedule page does not say the program is mandatory at all times, but in July 2026 it declared a Stage 1 Water Alert for customers in the Town of Southampton under which those limits were rules, until it rescinded the alert for the Town on July 31. Suffolk's Healthy Lawns program advises irrigating between 4:00 and 8:00 a.m. and, on sandy soil, watering smaller amounts more often, while Cornell Cooperative Extension of Nassau County favors deep, infrequent watering to a 6-inch depth.
We set cycles by soil: short, repeated cycles on excessively drained sand, longer ones where a loamy layer holds water. Tuna cans spread across the lawn measure what each zone puts down, as the county suggests. Fine fescue dislikes excessive irrigation, so shaded fescue zones run less. SCWA credits $150 for a smart controller and $75 for a rain sensor, which shuts the sprinklers off during a storm.
Seed, sod or hydroseed a new lawn
When a lawn is too thin to save or a new one is needed, the choice is how to establish it. Cost, timing, watering and the Town's cap on fertilized area all bear on the answer, and New York taxes a whole new lawn differently from repairs to an old one.
Overseed or seed in late summer
Seed is the low-cost route: HomeGuide's October 31, 2025 sod page says seeding is 30% to 50% cheaper than resodding, and its lawn care page puts reseeding at $0.04 to $0.18 a square foot. It needs the late-August to late-September window and a moist seedbed until germination, so it suits a property whose irrigation can run through September.
Sod for a finished lawn now
Sod costs $1 to $2 a square foot installed in HomeGuide's October 2025 survey, with fescue sod at $0.35 to $0.70 and Kentucky bluegrass at $0.30 to $0.55 for material. Suffolk County's fertilizer law exempts newly sodded areas from its restrictions, a whole new lawn is a capital improvement, and sodding bare spots is taxable maintenance.
Hydroseed a large open area
Hydroseeding sprays seed in a water slurry over open ground. HomeGuide's November 24, 2025 survey gives $0.12 to $0.35 a square foot, $3,500 to $5,500 for 1/2 acre and $5,000 to $8,500 for 1 acre, against $1.00 to $4.00 a square foot for sod on the same page. The same survey puts 1/4 acre at $1,900 to $2,800.
Whatever the method, the size of the lawn matters as much. In the Town's Aquifer Protection Overlay District, turf counts toward the 15 percent cap on fertilized vegetation, and part of a lawn can become a meadow of little bluestem and switchgrass, both rated A by Rutgers for deer. Our native plantings page covers that route.
Questions
Lawn Care FAQs
How much does weekly lawn mowing cost?
Published figures are national or regional; none prices Long Island. LawnStarter, updated September 9, 2026, gives $41 to $61 a visit up to 1/4 acre, $59 to $114 for 1/2 to 1 acre and $278 to $449 over 2 acres, and puts the Northeast season at about 24 weeks at $48 to $75 a week. Its June 2026 study gives a 2025 Northeast average of $58.17 a mow. Angi's March 17, 2026 city list gives New York at $80 to $400, a New York City figure.
When can I fertilize my lawn in Suffolk County?
Between April 1 and November 1. Suffolk County's Chapter 459 bans fertilizer on turf from November 1 to April 1, and within 20 feet of surface water unless a natural buffer at least 10 feet wide stands between. Inside that season, the county's Healthy Lawns program suggests waiting until around Memorial Day to feed a dense lawn and, for one feeding a year, early September. The Peconic Estuary Partnership asks owners in its watershed to fertilize only between April 2 and October 31.
How short should my lawn be mowed?
No shorter than three inches. Cornell Cooperative Extension of Nassau County suggests a 3-inch minimum for Long Island lawns, Suffolk County's Healthy Lawns program says to mow at three inches or more for a strong root system, and Cornell's turfgrass program says never to remove more than one-third of the leaf in one mowing. Leave the clippings: the Peconic Estuary Partnership says that can cut fertilizer use by 25 to 50 percent. In the Village of Southampton, grass along the street may not pass five inches.
What rules apply to tick and grub treatments on a lawn?
They are pesticide applications. New York requires a written contract stating the dates, number of applications and total cost of a commercial lawn application, and markers at the treated area; Suffolk County requires written notice 48 hours ahead to occupants of abutting dwellings within 150 feet, unless an exemption such as granular products applies. New York bars imidacloprid, thiamethoxam and acetamiprid on turf and outdoor ornamentals from December 31, 2026. Angi's September 2026 figures put a one-time tick treatment at $50 to $150. Without spraying, the CDC's steps help: mow often, remove leaf litter, keep a 3-foot barrier at the woods.
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