Town of Southampton
New Pool Construction in Water Mill, NY
A new gunite pool in Water Mill runs about $90,000–140,000 for a standard build and past $140,000 for a 20×40 with a spa (2026 Long Island builder figures; custom builds $100,000–400,000+), with vinyl at $40,000–70,000 and fiberglass $45,000–85,000. Plan 12–16 weeks from permit to swim and book 4–6 months ahead. We put Water Mill homeowners in touch with one licensed, insured pool builder who builds in the town every year and knows its setbacks, barrier code and water table.
Last updated · Reviewed by Georgica Pool Co.
A new pool in Water Mill is a six-figure project with a permit clock, a water table and a village code attached. We put Water Mill homeowners in touch with one licensed, insured pool builder who builds in the town every year, and we publish the 2026 Long Island ranges so the first number you hear makes sense.
New pools in Water Mill: what's different here
Estates around Mecox Bay and Flying Point on wet, flat ground, older farmhouses along Montauk Highway and Halsey Lane, and wooded 1990s–2010s neighborhoods north of the highway toward Deerfield Road whose first-generation gunite and vinyl pools are reaching resurfacing and liner age.
Water Mill has open ground near the water and moraine inland, and the build changes with it: wetland and Trustee review near the ponds, boulder excavation and drainage on the till, and everywhere the doubled setbacks and the drywell. The 20×40-with-spa number runs past $140,000 here before the pool house.
Water Mill filled in from the 1990s through the 2010s, so a large stock of pools is at the age where plaster (about 10 years) and Long Island liners (8–10 years) come due at once, along with pumps past 10 years and salt cells past 5. Water Mill is in the Town of Southampton: pool equipment at least 10 feet from property lines (8 feet in R-10 districts) with screening, a drywell for backwash, and permits through the Town Building Division rather than a village board.
Permits in Water Mill run through the Town of Southampton Building Division; the pool specialist we put you in touch with handles the filing where one is required.
How it works
Tell us about the job once. One licensed, insured pool specialist who works Water Mill and handles new pools regularly contacts you within 1 business day. Free for homeowners, no spam calls.
FAQ
New pools questions
Gunite, vinyl or fiberglass: which pool for a Hamptons house?
Gunite is what the South Fork builds: any shape, a spa in the same shell, a 30–50+ year structure, and a finish that needs redoing every decade or two (plaster about 10 years, pebble 20+). On Long Island a standard gunite pool runs $90,000–140,000 and a custom one $100,000–400,000+. Vinyl is the budget route at $40,000–70,000, with a liner every 8–10 years at $5,000–7,500 and a 15–20+ year structure. Fiberglass is a factory shell at $45,000–85,000, a 20–30 year shell, the fastest install and the fewest shapes, and it needs a crane, which matters on a village lot. The vinyl and fiberglass Long Island figures come from a single source; treat them as a starting point.
Read the full answer →Do I need a fence around my Hamptons pool, and an alarm?
Yes to both, with one exception. New York requires a barrier at least 48 inches high around any residential pool, with no openings over 4 inches and gates that close and latch on their own, and since December 14, 2006 every pool built or substantially modified must have an approved pool alarm; where a house wall forms part of the barrier, the doors need alarms too. The exception: a pool with an automatic safety cover does not need the alarm. Villages add rules: Southampton Village allows pools only in rear or side yards behind a 4-foot fence with gaps under 4 inches; the Town and Village of East Hampton double the setbacks for pools and pool equipment; Sag Harbor reviews any fence visible from the street in the historic district. Every pool circuit needs GFCI protection and bonded metal parts, by a licensed electrician.
How does Georgica Pool Co. work, and what does it cost me?
It costs homeowners nothing. You tell us about the pool once, roughly sixty seconds: where it is, what kind it is if you know, what it needs, and when. We put you in touch with one licensed, insured pool company that works your town and does that kind of work, service company or builder as the job requires, and they call you within one business day to look at it and quote it directly. We are a Hamptons-only referral service, not a pool company, and we are named for the pond, not connected to any business or property that shares the name: one company, and nobody else gets your number. Participating companies pay us a referral fee.
Services
More in Water Mill
Pool Opening & Closing in Water Mill
Spring opening and fall closing by a local company that does them by the hundred: what is included, 2026 Long Island prices, and the timing rule that keeps a pool from opening green.
Weekly Pool Service in Water Mill
Weekly maintenance for a pool whose owner is elsewhere Monday to Friday: what a real visit includes, 2026 Long Island prices per visit and per season, and what to ask before you sign for the summer.
Pool Equipment & Leak Repair in Water Mill
Pumps, filters, salt cells, heaters and the leak you can only see on the water bill: 2026 repair costs, the repair-or-replace rule, and why a variable-speed pump pays for itself at Long Island electric rates.
Pool Heater Installation & Replacement in Water Mill
Gas heaters that warm a pool by Friday, heat pumps that cost a third as much to run, and the salt-air detail that decides how long either lasts: 2026 costs, running costs, and sizing for a 20×40 pool.
Pool Renovation & Resurfacing in Water Mill
Resurfacing a tired gunite pool, replacing a liner, new coping and tile, a salt conversion or an automatic cover: 2026 costs (Long Island where they exist), finish lifespans, and the order the work happens in.
Book a pool specialist in Water Mill
Sixty seconds. One licensed, insured pool specialist who works your town calls you within one business day. Free for homeowners; nobody else gets your number.
We use what you send us only to put you in touch with the right pool specialist. Never sold, never used for marketing. Privacy policy.