Basement Remodeling in Westchester County, NY

Basement remodeling turns an unfinished lower level into living space: framing, insulation, drywall, flooring, lighting, and often a bathroom, bedroom or kitchenette. In Westchester, where many homes sit on older foundations and sloped lots, the first question is moisture. Companies listed here say they finish or remodel basements; ask each one how they deal with water before they close up the walls.

What to know in Westchester

Westchester County requires home improvement contractors to hold a county license, and the county does not show license numbers in its public search, so we list the license expiry we found in the county's online search and note when a number comes from the company's own site. Plumbing and electrical work in a remodel may need separately licensed trades. Your town or village building department sets permit and inspection rules, so ask which permits apply before work starts.

Budgeting? See our Basement Remodeling & Finishing Cost in Westchester, NY guide.

Remodeling by town

9 remodeling companies serving Westchester County

Independent firms first, then out-of-county firms, then franchise or network affiliates. Ratings show their source; blank means we have not collected one. Listing is free and is not an endorsement.

Frequently asked questions

Do I need a permit to finish a basement?

HomeGuide says a permit is required before work begins and typically costs $200 to $1,000, though some places charge a percentage of project cost. Rules and fees are set locally, so ask your town or village building department.

Should I fix water problems before finishing?

Yes. A wet basement can ruin new flooring and drywall. RenoVetted's White Plains guide suggests asking about interior drainage, rigid foam against the foundation and a dehumidifier, and lists waterproofing among typical basement finishing costs.

Does a basement bedroom need an egress window?

HomeGuide says basement bedrooms and living spaces must have an egress window or door, and that a bedroom needs a window, closet and door. Ask your building department for the rules that apply to your home.

How do I check a remodeler's license?

Search the company's legal name in the Westchester County licensed contractor search, and get the license number printed on your contract. See our guide on checking a Westchester contractor's license.

How many quotes should I get?

Compare at least three written quotes with the same scope: finished square footage, ceiling height, insulation, electrical, egress, permits, cleanup and warranty.

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