Long Island Homeworks
Cold Spring Harbor Long Island
Cold Spring Harbor, Suffolk County

Home builders in Cold Spring Harbor.

Long Island Homeworks has built dormers, additions, and new homes in a picturesque North Shore hamlet where historic homes command premium addition and renovation work.

Serving Cold Spring Harbor since 2008
Suffolk + town permits handled
4.9★ / 243 reviews

Walk-through in Cold Spring Harbor

Frank or Kevin visits personally — East End coverage included.

No pressure. We call back within 4 business hours to talk through your project. Prefer to talk now? (631) 641-5491

Licensed & Insured
Nassau + Suffolk
4.9-Star Google Rating
243+ reviews
618+ Projects
Since 2008
BBB A+ Accredited
No complaints on file

General Contractor in Cold Spring Harbor, Suffolk County

Cold Spring Harbor is a hamlet in the Town of Huntington on Long Island's North Shore, known for its protected harbor, wooded residential streets, and a housing stock that spans pre-war colonials, 1950s–60s ranches on large lots, and contemporary builds overlooking Cold Spring Harbor State Park. The harbor-adjacent streets — particularly those off Lawrence Hill Road and Goose Hill Road — have seen consistent demand for second-story additions and primary suite dormers as homeowners invest in expanding rather than selling. The hamlet's Cold Spring Harbor Laboratory proximity and strong school district make it a magnet for families who want more space without leaving the community. Permitting falls under the Town of Huntington Building Department at 100 Main Street; most structural additions require a building permit and engineering review. Cold Spring Harbor properties in the Harbor Road Historic District have additional review requirements. Frank Albanese has completed dormer and addition projects throughout Cold Spring Harbor since 2008 — from shed dormers on post-war ranches to full second-story additions on larger colonials along the wooded ridge. No travel surcharge from our Hicksville base.

Also Serving Nearby
Huntington Lloyd Harbor Oyster Bay Laurel Hollow
Common Questions

Frequently Asked Questions About Building in Cold Spring Harbor

Do you build dormers in Cold Spring Harbor, NY?

Yes — Cold Spring Harbor is an active area for Long Island Homeworks. We hold Nassau County license H-1609230000 (valid in both Nassau and Suffolk) and have completed dormer additions and second-story builds on Cold Spring Harbor's mix of post-war ranches, 1960s colonials, and pre-war homes along the harbor. All Cold Spring Harbor permits are filed through the Town of Huntington Building Department at 100 Main Street. We manage every permit from drawings through inspection sign-off. No travel surcharge.

How much does a dormer or home addition cost in Cold Spring Harbor, NY?

Dormer additions in Cold Spring Harbor typically run $68,000–$110,000 depending on scope and finish level. Second-story additions on Cold Spring Harbor ranches run $145,000–$210,000. Homes with harbor views or on oversized lots often justify premium scope — primary suite additions with deck access overlooking Cold Spring Harbor run $180,000–$250,000. Frank provides a fixed-price written contract at the scoping visit.

Do I need a permit for an addition in Cold Spring Harbor?

Yes. Cold Spring Harbor is in the Town of Huntington Building Department jurisdiction at 100 Main Street in Huntington. Structural dormer additions and second-story builds require a building permit. Properties in the Harbor Road Historic District have additional architectural review requirements. Lisa, our permit coordinator, identifies the correct jurisdiction and process for your specific address and manages all filings. Typical turnaround is 4–10 weeks.

How long does a Cold Spring Harbor addition project take?

Design and Town of Huntington permitting takes 8–16 weeks. A standard shed dormer on a Cold Spring Harbor ranch runs 6–9 weeks from permit issuance to completion. Full second-story additions run 4–6 months. We provide a Gantt chart at the scoping visit with all milestone dates.

What home builders serve Cold Spring Harbor, NY?

Long Island Homeworks serves all of Cold Spring Harbor and the surrounding North Shore communities — Huntington, Lloyd Harbor, Laurel Hollow, and Oyster Bay. We have been building dormers and additions on Long Island's North Shore since 2008 — 618 projects, Nassau license H-1609230000, 4.9-star Google rating from 243 reviews.

Ready to build in Cold Spring Harbor?

Free on-site consultation. Permits handled. East End coverage for new construction.

Mon–Fri, 7am to 6pm | Saturdays by appointment · Call or text anytime

(631) 641-5491