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General Contractors in Nassau County, NY

603 general contractors listed · Updated Oct 27, 2026

Compare general contractors serving Nassau County for renovations, additions and repairs, and request free quotes from local builders.

Avahere lists 603 general contractors across 59 Nassau County towns. Of these, 95 show a public phone number, 313 link to a website and 87 list a street address. The most listings are in Hicksville (33), New Hyde Park (33), Massapequa (31). None of these businesses has claimed its page yet, so the details come from public business records.

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603 results

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  9. 209. Fish Guy

    Unclaimed
    No reviews yet

    General ContractorFarmingdale

    Serves Farmingdale and nearby

    Website

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Towns with general contractors

59 Nassau County towns, A–Z. Pick yours to see local listings.

General Contractors in Nassau County: common questions

How many general contractors are in Nassau County, NY?
Avahere lists 603 general contractors across 59 towns in Nassau County.
Do general contractors in Nassau County need a license?
Most home improvement work on homes in Nassau County requires a home improvement license from the Nassau County Department of Consumer Affairs. Ask for the license number and look it up on the county website before you hire.
How do I get quotes from general contractors on Avahere?
Describe your job once and local general contractors that fit can reply with questions and quotes. It is free for you and for the businesses, and you decide who to hire, if anyone.
I run a general contractor business. How do I update my listing?
Find your business and choose "Claim it free". After a quick check you can edit your details, add services and photos, and answer customers at no cost.
Is Avahere free?
Yes. Avahere is free for customers and for businesses. There are no lead fees, and businesses cannot pay to rank higher.

Listings come from public business records and from business owners. Avahere does not show owner names or private contact details. Spot a mistake or want a listing removed? Remove a listing or contact us.