Town of Southampton
Boilers & Heating Plumbing in Water Mill, NY
Replacing a boiler in Water Mill costs $3,604–8,445 nationally, about $5,912, with oil units at $4,800–9,000 and propane at $2,800–7,500 on a fork that mostly burns both; radiant floors run $6–20 a square foot. Tell us what the boiler is and where in Water Mill; one licensed, insured plumber who does heating plumbing in Town of Southampton calls within one business day.
Last updated · Reviewed by Wainscott Plumbing Co.
A boiler in Water Mill runs on whatever reaches the street, oil or propane for most of Town of Southampton, and feeds the hot water, the radiant floors and, in February, the pipes. We put Water Mill homeowners in touch with one licensed, insured plumber who replaces boilers and their piping there, and we publish the 2026 costs by fuel.
Boilers in Water Mill: what's different here
Estates on Mecox Bay and the ocean lanes in the most expensive ZIP code on the South Fork, more than 60% of them counted seasonal, on outwash ground with the water table a few feet down, and the two working mills the hamlet is named for.
Water Mill has gas mains on a few village streets and oil and propane everywhere else; the boiler quote follows the fuel, and the plumber we send you to asks first.
Water Mill is a hamlet of the Town of Southampton, permitted through the Building & Zoning Division in Hampton Bays, which publishes no plumbing page or fee line; the Town keeps mechanical equipment 10 feet from the property lines (8 feet in R-10) with screening. The hamlet had 2,506 residents at the 2020 Census and a median home price of $5,885,000 in 2024, the third most expensive ZIP code in the country, with more than 60% of its houses counted seasonal by the Town’s housing plan; the plumbing is estate plumbing, and the houses are empty at the design temperature.
Permits in Water Mill run through the Town of Southampton Building & Zoning Division in Hampton Bays; the plumber 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 plumber who works Water Mill and handles boilers regularly contacts you within 1 business day. Free for homeowners, no spam calls.
FAQ
Boilers questions
How do I winterize my Hamptons house?
Heat it or drain it, and tell someone. Heated: leave the thermostat at 55°F or more — the insurance industry’s “reasonable care” standard for an unoccupied house, and the fact pattern a 2024 New York court case turned on — open the cabinet doors under the sinks, insulate the exposed runs, shut and drain the outdoor lines, and put a Wi-Fi freeze alarm (from about $25) on the boiler and a smart shutoff ($579.99 for the one we could price) on the main. Drained: a plumber shuts the main, drains the supply lines, water heater, traps and outdoor lines and adds antifreeze; no Long Island company publishes the price, so ask. The pipes will see 15.7°F at Islip’s design temperature, and a burst costs $200–3,000 to fix and $1,000–4,000 in damage.
Read the full answer →How much does a plumber cost in the Hamptons?
Nobody local publishes a rate, so the honest answer is the national one plus the drive. Plumbers charge $45–200 an hour by experience — an apprentice $45–90, a journeyperson $60–110, a master $80–200, a residential average of $80 — with a service call of $100–250 that usually includes the first hour, a trip fee of $50–300 on its own, flat-rate simple calls of $100–400 and an average job of $340 ($182–500), per one national guide’s 2026 figures. After hours runs time-and-a-half to triple, or $300–400-plus flat. The three Hamptons companies we checked say call for a quote; one offers 18-month 0% financing and one ran a $0 diagnostic promotion in late summer 2026. Plumbers who work the far ends of the fork charge for the drive whether the line says so or not.
Read the full answer →How does Wainscott Plumbing Co. work?
You tell us about the house once: where it is, what is wrong or what you want done, and when. We put you in touch with one licensed, insured plumber who works your town and does that kind of work, and they call you within one business day, sooner for an emergency. From there it is their quote, their schedule, their warranty. It is free for homeowners; participating plumbers pay us a referral fee for the introduction. We are not a plumbing company, and we do not sell your details; the one company we send you to is the only one that gets your number. If the job is really a septic installer’s, a well driller’s or a heating contractor’s, we say so first. We cover 9 South Fork towns and 6 kinds of plumbing work.
Services
More in Water Mill
Emergency Plumbing & Burst Pipes in Water Mill
What a burst pipe costs to fix ($200–3,000, about $500 typical), what the emergency call adds, the first ten minutes before the plumber arrives, and why one home in sixty files a water-damage claim every year.
Water Heaters in Water Mill
A tank at $800–2,500 installed, a tankless at $1,400–3,900, a heat-pump heater at $1,200–3,500 with PSEG’s $1,200 rebate, what a propane or oil house should choose, and what the code requires.
Winterization & House Reopening in Water Mill
Drain it or heat it: the 55°F rule insurers apply, what a winterization includes, the $580 shutoff and the $25 alarm, the temperatures the pipes will see, and the spring reopening.
Well Pumps & Water Treatment in Water Mill
A well pump at $975–2,821, a pressure tank at $800–3,800, the iron and manganese in South Fork well water, what SCWA charges and is doing about lead and PFAS, and the softener price nobody publishes.
Remodel Plumbing & Gas Lines in Water Mill
Repiping at $8,000–13,500, fixtures from $150 to $5,500 installed, drains and sewers, a gas line at $15–30 a foot for the range, grill and pool heater, the permits, and the outdoor shower nobody prices.
Book a plumber in Water Mill
Sixty seconds. One licensed, insured plumber who works your town calls you within one business day — sooner for an emergency. Free for homeowners; nobody else gets your number.
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