Solar Panel Installation in Smithtown, NY

Smithtown solar systems are priced by size and roof complexity. North Shore projects skew larger, often 9–14 kW, because homes here tend to have higher baseline electric usage and more roof area to work with. 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.

Smithtown 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 Smithtown (11787) rooftop installations are completed in one to three days on site. The full timeline from signed agreement to permission-to-operate — including engineering, North Shore permitting and PSEG Long Island interconnection — usually runs 6 to 12 weeks.

Smithtown is home turf for us — center-hall colonials and expanded Capes here have anchored our installs for four decades. Village-historic homes, Sound-front estates and mid-century colonials each need a different mounting approach — from standing-seam clamps to low-profile shingle flashing. North Shore roofs sit under heavier tree canopy, so precise shade modeling and module-level electronics matter more here than anywhere else on the Island. We provide a free on-site evaluation with a production estimate before you commit to anything.

Yes — we install throughout North Shore and the rest of Long Island, including Hauppauge, St. James, Kings Park, Central Islip. Sunshine Plus Solar has been family-owned and operating on Long Island since 1982.