Mold Removal Cost In Holtsville, NY

A typical professional mold job in Holtsville runs about $1,700 to $6,750 before rebuild. Holtsville sits in Suffolk County.

1976Median year homes were built

62%Homes built before 1980

16%Homes rented, not owned

$483,400Median home value

6,541Housing units

19,250People

Figures for Holtsville CDP from Census ACS 2019 to 2023.

Half the homes in Holtsville were built before 1976, and 62 percent went up before 1980. Older plumbing, roofs and window seals are where slow leaks start, and slow leaks are the mold most home policies leave out. About 16 percent of homes in Holtsville are rented, so most households here carry an owner's policy on the building itself.

Typical Prices In Holtsville

JobSizeNational RangeHoltsville Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,700 to $6,750
Mold Remediationan attic$2,000 to $7,500$2,250 to $8,450
Mold Inspection and Testinga visual inspection$200 to $600$250 to $700
Mold Inspection and Testingan inspection with samples$300 to $1,000$350 to $1,150
Mold Inspection and Testinga clearance test$300 to $800$350 to $900

Estimate is the national range times 112.6 divided by 100, the price level for New York-Newark-Jersey City, NY-NJ, rounded to $50. National ranges from Remediational cost guide, price level from BEA Regional Price Parities 2024.

The standard limited fungi endorsement caps mold at $5,000. Against a typical job here of up to $6,750, that cap falls short by about $1,750 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates Suffolk County high for inland flooding, coastal flooding, hurricane, cold wave, winter weather. Water from these events is where mold claims start, and flood water is a separate policy. FloodSmart says mold damage is not covered under standard NFIP flood policies. FloodSmart

HazardFEMA Risk Rating
Inland floodingRelatively High
Coastal floodingVery High
HurricaneRelatively High
Cold waveRelatively High
Winter weatherVery High

Source FEMA National Risk Index, December 2025, county level.

ZIP Code Neighborhoods In Holtsville

ZIPMedian Year BuiltHomes RentedMedian Home Value
11742197818%$475,600

New York Rules On Mold

Who May Do Mold Work

New York licenses mold assessors, mold remediation contractors and mold abatement workers under Article 32 of the state Labor Law. The rules apply to mold jobs larger than 10 square feet. Some owners who do the work on their own homes are exempt.

The same person may not do both the assessment and the remediation on the same property. The assessor writes the plan, a separate licensed contractor does the work, and the assessor checks the result. You can check a license with the Department of Labor’s search for licensed mold contractors.

New York State Department of Labor

New York Mold And Insurance Rules

All New York Mold And Insurance Rules lines

New York Department of Financial Services

All New York Department of Financial Services lines

Guides

Area Map

Holtsville Area

Holtsville CDP