Basement Mold Remediation Cost in Westchester, NY

Short answer

We did not find a published Westchester-specific mold price list, so these are national HomeGuide ranges: $1,500 to $6,000 for a partial basement, $6,000 to $15,000 for a full basement, and $500 to $1,500 for a small area of 10 to 100 square feet. A mold inspection is $300 to $650 for an average home. In New York, a separate licensed assessor and licensed remediator are generally required on larger jobs, which can affect total cost.

Published cost ranges

Item	Range	Source
Small area, 10 to 100 sq ft (national)	$500 to $1,500	HomeGuide
Medium area, 100 to 300 sq ft (national)	$1,500 to $6,000	HomeGuide
Basement, partial (national)	$1,500 to $6,000	HomeGuide
Basement, full (national)	$6,000 to $15,000	HomeGuide
Crawl space (national)	$1,500 to $4,000	HomeGuide
Mold inspection (national)	$300 to $650	HomeGuide
Permanent basement dehumidifier, installed (national)	$1,100 to $2,800	HomeGuide

These are published estimates retrieved October 2026, not quotes from 914 Basement. Your price depends on your house.

Prices on this page are national averages from HomeGuide, not Westchester surveys, and may be lower than Westchester quotes.

What drives the price

Size of the affected area and how deep it goes
Water source that caused the mold and whether it is already fixed
Materials that must be removed and replaced
Separate assessment before and clearance after remediation (NY Labor Law Article 32)
Containment, air scrubbers and disposal

Frequently asked questions

Does New York require licensed mold professionals?

Generally yes for projects of more than about ten contiguous square feet, under Labor Law Article 32. Check licenses with the NYS Department of Labor.

Why only national prices?

We could not find a Westchester-specific published mold price list. We will add one when we do.

Sources

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