Basement Finishing Manhasset NY

Manhasset Basement Contractor — LI Basement Pro

Basement Finishing Manhasset NY

Premium basement finishing in Manhasset, NY. Home theater rooms, wet bars, wine cellars, and custom carpentry for Manhasset's prestigious homes.

4.9 — 187 Reviews
🏠580+ Basements Completed
Licensed & Insured
🏆BSI Certified

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4.9 Stars — 187 Google Reviews·🏠580+ Basements Completed·📅15 Years on Long Island·Licensed & Insured·🏆BSI Certified Dealer·🌿EPA Lead-Safe Certified·🔨NARI Member·👥14-Person Crew·🔒Nassau & Suffolk Licensed·4.9 Stars — 187 Google Reviews·🏠580+ Basements Completed·📅15 Years on Long Island·Licensed & Insured·🏆BSI Certified Dealer·🌿EPA Lead-Safe Certified·🔨NARI Member·👥14-Person Crew·🔒Nassau & Suffolk Licensed·

Manhasset, NY

Basement Finishing & Waterproofing in Manhasset, NY

Basement finishing in Manhasset NY by LI Basement Pro

Manhasset is one of Nassau County's most prestigious communities, and the basement finishing projects we complete here reflect that. Manhasset homeowners typically seek high-end finishes: home theater rooms with acoustic panels, wet bars with custom millwork and quartz countertops, wine cellars, home gyms with rubber flooring and mirrors, and guest suites with full bathrooms featuring subway tile and custom fixtures.

Manhasset's housing stock includes significant colonial, Tudor, and custom homes — many with full-height basements of 1,000 sq ft or more. These larger footprints give us the canvas for truly impressive finished spaces.

Groundwater in Manhasset is generally manageable given the community's higher elevation relative to some other Nassau County communities, but we always assess and address any moisture issues before finishing begins.

Permits for Manhasset go through the North Hempstead building department, which we work with regularly. We handle the full permit process including architectural drawings when required for complex projects.

Services in Manhasset

Nearby Towns We Also Serve

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We visit Manhasset homes for free, no-obligation estimates. Mon–Sat, 7am–5pm.

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✓ Nassau County Licensed

✓ 4.9 Stars · 187 Google Reviews

✓ Free estimate · No obligation

✓ Permits handled for you

Verified Local Work

Recent Basement Jobs Near Manhasset

Real jobs completed by our crew across Nassau and Suffolk Counties.

Basement Finishing in Manhasset, NY
🏠 Basement Finishing
Manhasset, NYJan 2026

Full luxury basement finish with wet bar, home theater prep, and bathroom

Basement Finishing in Hicksville, NY
🏠 Basement Finishing
Hicksville, NYMar 2026

650 sq ft basement with LVP flooring, recessed lighting, and egress window

Basement Waterproofing in Levittown, NY
💧 Basement Waterproofing
Levittown, NYMar 2026

Interior drainage system + dual sump pump installation on cape-style home

Basement Finishing in Commack, NY
🏠 Basement Finishing
Commack, NYFeb 2026

800 sq ft basement with home office, bathroom rough-in, and drop ceiling

Egress Window Installation in Garden City, NY
🪟 Egress Window Installation
Garden City, NYFeb 2026

Two egress windows with full excavation and waterproofed window wells

Sump Pump Installation in Hauppauge, NY
Sump Pump Installation
Hauppauge, NYFeb 2026

Battery backup sump pump system after basement flooding

Basement Finishing in Mineola, NY
🏠 Basement Finishing
Mineola, NYFeb 2026

550 sq ft playroom/guest suite conversion with full drywall and LVP

Basement Waterproofing in Smithtown, NY
💧 Basement Waterproofing
Smithtown, NYJan 2026

Exterior waterproofing membrane + interior french drain system

Got Questions?

Basement Finishing FAQs — Manhasset, NY

Basement finishing in Manhasset follows Long Island pricing: $50–$85 per square foot installed. A typical 600 sq ft basement runs $30,000–$51,000 finished. Nassau County permit costs add $500–$1,500 to the project. We provide free, no-obligation estimates for all Manhasset homeowners.

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Mon–Sat, 7am–5pm · Free Estimates · No Obligation · Licensed & Insured