Mold Inspection in Ardsley, Where Water Reached Streets It Never Had
An inspection gives a first-time flooded Ardsley house the written history it does not have, before anyone prices the repair.
Mold Assessment quote in Ardsley
Tell us what you can see, where you think the water came from, and whether this building has done it before. That is usually enough for us to say which of the two licenses your job needs first, and roughly what it involves, before anyone comes out.
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What Ardsley reported about the streets Ida reached
The Village of Ardsley reported that the remnants of Ida caused damage in areas not known for flooding, naming Almena Avenue from around 551 Almena north to Carrier Avenue, Agnes Circle near the intersection with Abington, Park Avenue from 5 to 17 Park Avenue, and Summit Avenue.
Source: Westchester County Department of Planning, accessed 2026-09-21
The American Community Survey five-year estimates for 2020 to 2024 count 1,728 housing units in Ardsley, of which only 193, about 11 percent, were built in 1939 or earlier while 715, about 41 percent, were built in the 1950s, and 1,234, about 71 percent, are single family detached houses.
Source: US Census Bureau, American Community Survey, accessed 2026-09-21
The Village of Ardsley annex to the Westchester County Hazard Mitigation Plan records 24 flood insurance policies in force, 283 paid claims, $2,196,018.39 in total loss payments and 28 repetitive loss properties, on FEMA data dated July 2021.
Source: Westchester County Department of Planning, accessed 2026-09-21
Asked whether its flood hazard maps adequately address the flood risk, the Village of Ardsley answered no, explaining that the Army Corps of Engineers built a flood control wall in the village in the 1980s which substantially lowered the actual base flood elevation on properties along the Saw Mill River and in Addyman Square, but that the flood maps were never revised, so they show a base flood elevation substantially higher than what has actually been experienced since the wall was built.
Source: Westchester County Department of Planning, accessed 2026-09-21
New York State Department of Health publication 7287 states that mold testing is not recommended and is not required by any regulatory agency, that there is no state or federal standard for mold in homes, that sampling can cost more than simply cleaning and repairing the water problem, and that knowing which species is present does not change the advice.
Source: New York State Department of Health, accessed 2026-09-21
Why a first flood in Ardsley still needs a written finding
Ardsley reported to the county that the remnants of Ida caused damage in areas not known for flooding, and it named them: Almena Avenue from around 551 Almena north to Carrier Avenue, Agnes Circle near the intersection with Abington, Park Avenue from 5 to 17, and Summit Avenue. If your house is one of those, the difficulty is precisely that there is no history to compare it against. An inspection creates the comparison: the measured area, the entry route, the height the water reached, what is still holding moisture, and whether the source has stopped.
What an Ardsley house tells an assessor about where to look
The housing here points the search in a specific direction. Only 193 of Ardsley's 1,728 units, about 11 percent, were built in 1939 or earlier, while 715, roughly 41 percent, went up in the 1950s and 1,234 are single family detached. That is a village of postwar houses rather than old masonry, so the likely suspects sit in grading, slab and crawl space details, additions and finished lower levels rather than in unlined stone. Weigh that against the claims record: 283 paid claims and $2,196,018.39 in loss payments against only 24 policies in force, with 28 repetitive loss properties. Plenty of Ardsley addresses have done this more than once, and knowing which kind yours is comes first.
A new flood street has no baseline
Almena Avenue, Agnes Circle, Park Avenue and Summit Avenue were reported as damaged in areas not known for flooding. The report becomes the baseline.
Postwar stock fails in postwar ways
About 41 percent of the village dates from the 1950s and only 11 percent from before 1940. Grading, slabs and additions come before old masonry on the list.
Twenty eight repetitive loss addresses
283 paid claims against 24 policies in force. The question worth paying to answer is which group your house is in.
First time water has come into your Ardsley house?
Send the street and how far it got. That is where the record starts.
What an Ardsley inspection leads to
What Ardsley homeowners ask before booking an inspection
The flood map says my base flood elevation is high. Is that right?
The village itself says it may not be. Ardsley told the county that the Army Corps of Engineers built a flood control wall here in the 1980s which substantially lowered the real base flood elevation along the Saw Mill River and in Addyman Square, and that the maps were never revised, so they show an elevation substantially higher than what has actually been experienced since. Worth raising before you accept a scope built on the map.
Do I need a test to prove it is mold?
No. The state health department says testing is not recommended, is not required by any regulatory agency, and that no state or federal standard for mold in homes exists. What changes the outcome is finding and stopping the water, which is what the assessment is for.
Tell us whether the map matches what happened
In this village the two often disagree, and the village has said so.