
Solar electric, solar pool heating and solar hot water for Sag Harbor homes and businesses — designed, permitted and installed by Long Island's original solar company, family-owned since 1982.
ZIP
11963
Region
The Hamptons
Installing Since
1982
Estimates
Always Free
Sag Harbor's village-historic homes need sensitive design; we routinely work through village review to get systems approved.
East End irradiance is among the best in New York State, and long summer days line up perfectly with pool pumps, air conditioning and seasonal occupancy.
Estates out east often have multiple structures — main house, pool house, guest cottage, detached garage — that we combine into a single high-output system.
Village and architectural review boards are the norm here, and we handle the submissions and low-visibility design work as part of the project.
Every Sag Harbor project starts with a free on-site evaluation: roof condition, shading, electrical service and your last twelve months of PSEG Long Island usage. You get a written production estimate, a full incentive breakdown and a fixed price — no pressure, no subcontracted crews, and no surprises at install day.
Original installer out of business? We coordinate directly with your roofer so your roof job stays on schedule.
Custom rooftop solar sized to your usage, engineered and installed by our own crews.
Learn moreAmerican-made pool panels that add 10–15°F and months to your swim season.
Learn moreCut domestic hot water costs with a proven solar thermal system.
Learn moreFlat-roof and ground-mount systems for Long Island businesses.
Learn moreSag Harbor solar systems are priced by size and roof complexity. Hamptons systems are quoted individually because of scale; many owners pair solar electric with solar pool heating for the fastest combined payback. Before incentives, most residential systems land between $18,000 and $35,000 — and eligible homeowners may reduce that with the New York State credit (25% of qualified expenditures, up to $5,000, subject to eligibility and tax liability) and any NY-Sun incentives available in your region.
Sag Harbor homeowners may be eligible for the New York State residential solar tax credit (25% of qualified expenditures, up to $5,000, subject to eligibility and tax liability), NY-Sun incentives where available, and a 15-year property tax exemption on the added home value. Tax credit paperwork is handled by the homeowner's accountant—we're happy to provide the project documents they need.
Most Sag Harbor (11963) rooftop installations are completed in one to three days on site. The full timeline from signed agreement to permission-to-operate — including engineering, The Hamptons permitting and PSEG Long Island interconnection — usually runs 6 to 12 weeks.
Sag Harbor's village-historic homes need sensitive design; we routinely work through village review to get systems approved. Estates out east often have multiple structures — main house, pool house, guest cottage, detached garage — that we combine into a single high-output system. East End irradiance is among the best in New York State, and long summer days line up perfectly with pool pumps, air conditioning and seasonal occupancy. We provide a free on-site evaluation with a production estimate before you commit to anything.
Yes — we install throughout The Hamptons and the rest of Long Island, including Bridgehampton, East Hampton, Greenport, Southold. Sunshine Plus Solar has been family-owned and operating on Long Island since 1982.
Tell us a little about your home and we'll follow up with a production estimate, an incentive breakdown and a fixed price. Most Sag Harbor (11963) evaluations are scheduled within a week.
Over 5,000 Long Island solar projects delivered since 1982 — and every one installed by our own crews.
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