Westchester County
Mold Removal in Pelham, Where the Old Foundation Lets the Water In
A damp Pelham basement is more often the foundation than a leak, and an assessment that names the moisture source keeps you from paying twice for removal that grows back. Nearly two thirds of homes in the Town of Pelham were built in 1939 or earlier, the oldest housing in Westchester, and the county plan warns that basements take on groundwater even where there is no surface flooding at all.
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Tell us the town, how the water got in, and how long it has been wet. Those three answers tell us what kind of water this was, and in Westchester the kind of water decides most of what the job involves.
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Seepage through a prewar Pelham foundation
The Town of Pelham is made up entirely of two villages, and it is the village that handles building and floodplain questions: the Village of Pelham at 195 Sparks Avenue, or Pelham Manor at 4 Penfield Place. The housing is the story here. Stone and brick foundations laid before the Second World War were rarely waterproofed to anything like a modern standard, so groundwater seeps through them season after season, and a finished room built against that wall tends to grow mold on the back of the drywall where nobody sees it. The county health department puts it plainly: mold is controlled by controlling moisture, and the cause has to be found and fixed or it comes back. In practice that means the useful Pelham assessment looks at the wall, the grading outside and the gutters, not just the stain, and the owners of a few low lying homes have already regraded driveways and closed off garage doors to keep surface water out.
Areas within Pelham: Village of Pelham, Pelham Manor

Is the wall damp even when it has not rained?
Tell us when you notice it and where. Seasonal seepage and a plumbing leak look alike at first and are fixed in very different ways.
What we arrange for Pelham and Pelham Manor houses
Mold Inspection and Assessment
Find out in writing what kind of water reached your Westchester home, how far into the building it got, and whether there is a mold job to do at all.
Mold Inspection in Pelham →Mold Remediation and Removal
Get the mold in your Westchester home removed by a licensed firm working to an independent assessor's written plan, with the moisture source named so the work is not undone.
Mold Remediation in Pelham →Water Damage Drying and Dry Out
Get a wet basement or room in your Westchester home dried properly before mold has a chance to start, in the order the kind of water calls for.
Water Damage Drying in Pelham →Why Pelham basements take water without a flood

In the 2020-2024 American Community Survey, the Town of Pelham has 4,436 housing units and the highest pre-war share of any Westchester town, 64.8 percent built in 1939 or earlier; within it, Pelham Manor village reaches 71.8 percent and 92.2 percent owner occupancy.
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates, table B25034 Year Structure Built, county subdivisions of Westchester County, accessed 2026-09-23
The same flood profile, citing FEMA, states: "High groundwater levels can be a concern and cause problems even where there is no surface flooding. Basements are susceptible to high groundwater levels." It adds that seasonally high groundwater is common in many areas, while elsewhere it occurs only after a long period of above-average precipitation.
Source: Westchester County Department of Planning, 2021 Westchester County Countywide Hazard Mitigation Plan, Section 5.4.3 Flood, accessed 2026-09-23
The Westchester County Department of Health's mold page states "The way to control indoor mold growth is to control moisture", that there is no practical way to rid an indoor space of every mold spore, and that "The underlying cause of the moisture must be located and fixed to prevent future mold growth as well."
Source: Westchester County Department of Health, Mold, accessed 2026-09-23
The county plan states that because the Village of Pelham comprises the total land area of the Town of Pelham, the Town "does not participate in the NFIP as an independent jurisdiction"; the plan treats the Town of Pelham as the aggregate of the Village of Pelham and the Village of Pelham Manor.
Source: Westchester County Department of Planning, 2021 Westchester County Countywide Hazard Mitigation Plan, Section 9.19 Town of Pelham, accessed 2026-09-23
The Village of Pelham told the county that flood damage "within the Village of Pelham are generally contained to areas within the designated flood zones", and that owners of a few homes in flood-prone areas were allowed to fill in their driveways and close off garage doors at their own expense. The county plan estimates 50 of the village's 2,377 buildings (2.1 percent) and 108 of Pelham Manor's 2,219 (4.9 percent) are in the mapped 1 percent area.
Source: Westchester County Department of Planning, 2021 Westchester County Countywide Hazard Mitigation Plan, Section 9.38 Village of Pelham, accessed 2026-09-23
Send us what the Pelham basement is doing
We will tell you whether this needs a licensed assessor, a drainage fix outside, or just better ventilation, and why.