Westchester County
Mold Removal in Yonkers, Where the Same Buildings Flood Twice
Tell us what you can see and where you think the water came from, and we will say whether this is a one off leak or a building that has done it before. That is the question that decides a Yonkers job: the city carries 239 repetitive loss properties against only 447 flood insurance policies in force, addresses that flooded, were paid out and flooded again.
Request a quote in Yonkers
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.
$100 off your first job
Credited by us on your first booked job.
- One credit per customer per property, on your first booked job.
- Valid through December 31, 2026.
Mention this offer when you book. Full terms.
What 239 repetitive loss addresses tell a Yonkers assessor
FEMA figures dated July 2021, set out in the City of Yonkers annex to the Westchester County Hazard Mitigation Plan, put 239 city properties on the repetitive loss list and $12,387,587.61 in money paid out across 801 settled claims, while only 447 policies were in force.
Source: Westchester County Department of Planning, accessed 2026-09-21
The City of Yonkers hazard mitigation initiative for repetitive loss properties names Palmer Road, Nepperhan Avenue, Harrison Avenue, Clunie Avenue, Westminster Drive, Gray Oaks Avenue, Scarsdale Road, Millard Avenue and Tibbetts Road, and the update adds Robert Lane, Warburton Avenue, Abner Place, Maple Place, Hildreth Place, Donnybrook Place, Parkview Avenue, Brooke Avenue, Meadow Avenue and Longvale Road.
Source: Westchester County Department of Planning, accessed 2026-09-21
Asked by the county planners whether it keeps a record of flood damaged properties, the City of Yonkers answered yes and gave seven places: the Nepperhan River Valley, which is the Saw Mill River, the Hudson River, Clunie Avenue, Nepperhan Avenue, the Bronx River Valley, Tibbetts Brook and Harrison Avenue.
Source: Westchester County Department of Planning, accessed 2026-09-21
An EPA Brownfields success story on the Saw Mill River records that in the early 1920s the US Army Corps of Engineers covered sections of the river through Yonkers for flood mitigation and to shield the public from a badly polluted waterway, and that the last mile before its confluence with the Hudson runs almost entirely underground with only scant portions visible between buildings and under the train station.
Source: US Environmental Protection Agency, accessed 2026-09-21
Query the state license register for active licensees based in Yonkers and it returns 19 remediation contractors but only 8 assessment contractors.
Source: New York State Department of Labor, via data.ny.gov, accessed 2026-09-21
The American Community Survey five-year estimates for 2020 to 2024 count 85,006 housing units in Yonkers, of which 22,653 were built in 1939 or earlier and a further 7,234 in the 1940s.
Source: US Census Bureau, American Community Survey, accessed 2026-09-21
The City of Yonkers told the county planners that its Department of Engineering is responsible for floodplain management and that staff hold the floodplain manager credential, while the city's Department of Engineering and Department of Housing and Buildings together administer development regulation, and that the city has adopted its own Fire and Building Code implementing the New York State Uniform Fire Prevention and Building Code.
Source: Westchester County Department of Planning, accessed 2026-09-21
Chapter 581 of the Laws of Westchester County requires that, before entering a written lease for residential or commercial occupancy, the owner notify the prospective tenant whether the property sits in a Special Flood Hazard Area on the FEMA Flood Insurance Rate Maps, and of the premises' propensity for flooding where flooding known to the owner has occurred at least once in the ten-year period immediately preceding the lease and caused flood damage to any part of the leased premises.
Source: Westchester County Board of Legislators, accessed 2026-09-21
Renters hold 43,908 of the 81,645 occupied homes in Yonkers against 37,737 held by owner occupiers, so tenant households outnumber owner households across the city.
Source: US Census Bureau, American Community Survey, accessed 2026-09-21
Has your Yonkers address done this before?
Send the street and what you are looking at. We will tell you whether it sits in the part of the city that repeats, and what that changes about the repair.
Which Yonkers office to ask, and what is buried under the street
Two city offices are involved here and they do different things. The Department of Housing and Buildings administers development regulation under the city's own Fire and Building Code, while floodplain management sits with the Department of Engineering, where staff hold the floodplain manager credential. So the permit to rebuild and the question about the floodplain go to different counters, and asking the wrong one first costs a week. What is under the street matters as much as who signs. The Army Corps of Engineers covered sections of the Saw Mill River through Yonkers in the early 1920s, and the last mile before the Hudson runs almost entirely underground, so a property can sit over a river with nothing to see at ground level. A basement taking water with no roof fault and no plumbing fault is not a mystery in that situation, it is a buried watercourse and the wet ground around it. The housing fits the same story: 22,653 of the city's 85,006 homes were built in 1939 or earlier, which makes a stone or brick foundation with no vapor barrier and no perimeter drain the normal case rather than the exception. The timetable is set by the scarce half of the trade. The state register shows 19 remediation contractors at Yonkers addresses against 8 assessment contractors, and the assessor has to go first and come back at the end, so that booking is the one that fixes your dates. And if you rent, as 43,908 of the 81,645 occupied households here do, the owner owed you a written ten year flood history before you signed the lease.
Areas within Yonkers: Nepperhan Avenue, Clunie Avenue, Harrison Avenue, Palmer Road, Gray Oaks Avenue, Millard Avenue
What we arrange across Yonkers, from Nepperhan Avenue to Millard
Mold Inspection and Assessment
Get a written finding on what the mold is, how far it runs and what water is feeding it, from a licensed assessor who is barred by New York law from selling you the removal.
Mold Assessment in Yonkers →Mold Remediation and Removal
Have the mold removed properly, by a licensed remediation contractor working to an independent assessor's written plan and stopping at an independent clearance.
Mold Remediation in Yonkers →Water Damage Drying and Dry Out
Get the building dry before mold becomes the problem, after a leak, a backed up drain or water in the basement.
Water Damage Drying in Yonkers →Start with what you can see in the basement
Describe it and we will say whether this needs a licensed assessor at all, and in what order the work has to happen. No obligation.