the Hamptons
Pool opening and closing in the Hamptons: what it costs, and when to do it
On Long Island a professional pool opening or closing starts at about $425 (one Hamptons service company's 2026 price; national ranges are $250–500 to open and $175–500 to close, depending on the source). Opening covers cover removal, equipment start-up, cleaning, fill and start-up chemicals; closing drains the lines, winterizes the equipment and sets the cover. Timing matters more than price: open once daytime air runs consistently above 70°F, before algae gets going (Long Island pools open mid-March to early May), and close after several nights below 50°F, usually mid-to-late October.
Last updated · Reviewed by Georgica Pool Co.
What an opening includes
The cover comes off and gets cleaned and stored. Plugs and gizmos come out of the returns and skimmers, the deck equipment (ladders, rails, diving board) goes back on, the pump, filter and heater are reconnected and started, the pool is brushed and vacuumed, the water is topped up, tested and dosed with start-up chemicals, and the equipment is run and checked. A gunite pool takes longer than a vinyl one because there is more surface to clean, which is why concrete pools sit at the top of the national range.
What a closing includes
Water balanced and dosed with winterizing chemicals, the level dropped below the skimmer, the plumbing blown out and plugged (with antifreeze where the lines cannot be fully cleared), the pump, filter, heater and salt cell drained or removed, and the cover set and secured. On Long Island the freeze is real but not Minnesota-deep, which is why local closings sit in the middle of the national spread rather than at the $400–600 cold-state end.
What it costs (2026)
| Job | Cost |
|---|---|
| Opening, Long Island (one Hamptons company's published price) | from $425 |
| Opening, national | $250–500; gunite/concrete $300–500; DE filter reinstall $300–450 vs $250–350 cartridge or sand |
| Closing, Long Island (same company) | from $425 |
| Closing, national | sources disagree: $250–500; $200–500 (most about $350); $175–300 (most about $250) |
| Both, DIY chemicals and supplies only | $50–150 per opening |
The Long Island figure is one company's starting price, not a survey; expect large gunite pools with spas, automation and salt systems to run above it.
When to open
Earlier than most people think. The rule of thumb across the industry is to open once daytime air is consistently above 70°F, or overnight lows are holding at 60–65°F, and to get the pump and filter running then even though the water is far too cold to swim. Algae is active, not dormant, at 70°F; a pool that sits under a cover into May with warm water and no circulation is the pool that opens green and costs a week of chemicals to recover. On Long Island most residential pools open somewhere between mid-March and early May depending on the year. Opening in mid-April because that is what the calendar says is not a rule; the thermometer is.
When to close
Later than most people think, for the same reason. Sources disagree on the exact threshold (Hayward says water consistently below 65°F; others say 60°F, when algae goes dormant; a cautious few say wait for 50°F water), but the Long Island version is practical: watch for nighttime lows consistently below 50°F for several nights running, which usually arrives mid-to-late October. Closing warm water traps algae under the cover for six months.
The season, honestly
Open-to-close on the South Fork is roughly five to seven months. A fully serviced season is shorter: the seasonal service programs sold here run about 20 weeks, Memorial Day to Columbus Day and a little either side. The shoulder weeks are yours, or your service company's at à la carte rates.
Second homes
If nobody is at the house in April, the opening is the appointment that decides the season. Companies that work the Hamptons sell the opening date as part of a seasonal package for exactly this reason: first pick of dates goes to the customers who booked the season. Ask for the opening to be scheduled a week before the first weekend the house is used, not the day of.
FAQ
Common questions
How much does pool opening cost in the Hamptons?
About $425 and up. One Hamptons service company that works East Hampton, Southampton, Water Mill, Bridgehampton and Sagaponack publishes openings and closings "starting at $425" for 2026, which buys cover removal, deck equipment reinstalled, filtration start-up, an interior clean, the fill, start-up chemicals and an equipment check. National ranges run $250–500 for an in-ground opening, with gunite pools at the top ($300–500) because there is more surface to clean and a DE filter reinstall ($300–450) costing more than a cartridge or sand one ($250–350). Closings nationally are $175–500 depending on the source. A large gunite pool with a spa, automation and a salt system will run above the starting price; a DIY opening is $50–150 in chemicals and supplies plus a Saturday.
Read the full answer →When should I open my pool in the Hamptons?
Earlier than the calendar says: when daytime air is consistently above 70°F, or overnight lows are holding at 60–65°F, and not later. The water will be far too cold to swim, and that is the point: algae is active, not dormant, at 70°F, and a pool that sits under a cover into May with warming water and no circulation opens green. On Long Island most residential pools open between mid-March and early May depending on the year. Closing works in reverse: watch for nighttime lows consistently below 50°F for several nights, which on Long Island usually arrives mid-to-late October (national sources disagree on the threshold, quoting 65°F, 60°F or 50°F water). Open-to-close is a five-to-seven-month season; the serviced part of it is usually about 20 weeks.
Read the full answer →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.
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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.
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Building a pool on the South Fork in 2026: Long Island costs for gunite, vinyl and fiberglass, the 12–16 week build, the 4–6 month booking horizon, and the setback, barrier and water-table rules that shape the plan.
Book a pool specialist for opening & closing
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