Find a licensed water damage repair company in Hempstead, NY

Who licenses water damage repair companies in Hempstead

• Nassau's Administrative Code requires a county license for environmental hazard assessment or remediation. It defines that hazard as an indoor air quality violation under federal law caused by fire, flood, storm, chemical spills, dust, sewage, mold or other biological contaminants, not asbestos or lead.
• Repair, maintenance, replacement and remodeling work are part of Nassau's definition of home improvement, which takes a county license to do as a business.
• Nassau Consumer Affairs lists Environmental Hazard Remediation Providers and Technicians as a county license of its own, under section 21-31 of the code.
• A new Nassau environmental hazard remediation provider license costs $1300.00, according to the county's fee list.

State rules and the lookup steps: how to check a water damage repair company's license.

What the Town of Hempstead requires

• The Town requires a building permit to repair disaster damage, as in all construction, to ensure life safety, proper construction practices and compliance with local, state and federal codes.
• The Town treats damage as minor when restoring the home to its pre-event, latest legal state costs less than 50% of the structure's replacement value. That work needs a permit to repair in like and kind and a certificate of completion.
• The Town requires full compliance with New York State and FEMA construction guidelines for a certificate of occupancy after a substantial improvement or repair, meaning work over 50% of the structure's pre-disaster fair market value. Compliance may include raising the house.
• The Town sets its design flood elevation at the base flood elevation plus two feet of freeboard.
• The Town's July 31, 2018 fee printout sets $50 for any certificate of completion tied to a building permit, payable when the permit is issued.
• The Town's disaster information page notes that anyone with a mortgage living in a Special Flood Hazard Area must have flood insurance.
• The Town gives flood map information by phone at 516-489-5000, through its Building Department.

The Town of Hempstead Building Department handles permits (516-538-8500). Our Town of Hempstead permit guide covers how to apply, inspections and certificates.

Homes in Hempstead: what the Census shows

Across the Town of Hempstead, villages included, the median home was built in 1954, and 70% of homes were built before 1960, 22% before 1940. 82% of homes here are owner-occupied, and 78% are single-family detached houses.

What water damage repair costs here

Labor is a large part of any price. Long Island construction laborers earn a median $58,875 a year, from about $39,468 at entry level to $79,154 with experience. Carpenters earn a median $78,841 a year, from about $54,732 at entry level to $97,440 with experience. (New York State Department of Labor, wages updated to the first quarter of 2026.) Prices come from written estimates; more in the water damage repair cost guide.

Before you hire in Hempstead

• Ask for the license number the work needs here (see who licenses water damage repair companies above), and check it before you sign.
• Ask who files with the Town of Hempstead Building Department, and who books the inspections.
• Will you take moisture readings before and after drying, and give them to me in writing?
• If you find mold, who assesses it? In New York the assessor and the remediator on a mold job must be different companies.