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Nassau County

Mold Removal in Elmont, NY, When the Damp Comes and Goes

If the damp in your Elmont home comes and goes, that pattern is useful: an assessment can use it to tell a leak or condensation from groundwater before you pay for waterproofing. The USGS well inside Elmont read the water table 35.96, 35.80 and 36.10 feet down in March, April and June 2016, a change of under four inches across three months.

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1955is the median year built across Nassau County's 479,044 homes in Census estimates for 2020 to 2024
0.37 ftbelow the surface was the water table at a USGS well on Manhasset Neck in spring 2016
165.27 ftbelow the surface was the water table at a second Manhasset Neck well about 1.3 miles away
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Request a quote in Elmont

Tell us the town, the lowest level of the house and where the damp is showing. In Nassau that is usually enough to say whether the water is coming up from the ground or out of the house, and which licensed trade the job needs.

Would you rather talk it through? Call (315) 640-3590.

$100credit

$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.
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Mention this offer when you book. Full terms.

Six quick questions about the house and where the damp is showing, then your details. It takes about a minute.

Question 1What are you dealing with?
Question 2Which part of the county is the house in?

How far down the water sits under a Nassau house changes a great deal from the South Shore to the North Shore hills. Near the bays and harbors it can be close to the surface. Under much of the middle of the island and the hills it is far below the floor, so damp there usually comes from the house itself. The town is enough, and not sure is a fine answer.

Question 3What is the lowest level of the house?

A house built on a concrete slab, a house with a basement and a house over a crawl space get wet in different ways, and the fix is different for each. Many homes in this county were built on slabs with no basement at all.

Question 4Where is it showing up?

Where the damp appears is the first clue to which way the water came. Damp that starts low and spreads up points one way, and damp around a fixture, a window or a ceiling points another.

Question 5How long has this been going on?

Something that got wet in the last day or two can often still be dried. Something that has stayed damp for weeks usually cannot, and the job changes.

Question 6What would you like to happen next?

In New York the company that assesses mold and the company that removes it cannot be the same company on one job, so it helps to know where you want to start.

The house, the damp, and how to reach you

Who should we ask for?

How can we reach you?

We call to confirm the details before anyone is sent out.

Where is the property?

The contractor match is by property, not by person, so the street line matters.

Anything else we should know?

Your $100 credit is attached to this request. Mention this offer when you book. See terms.

Your details are used only to respond to this request and arrange the service.

Local Detail

Elmont's water table, measured three times

Basement boiler with copper lines and a small drip stain from a slow leak

USGS well N 9979, inside Elmont, measured the water table 35.96 feet down on March 17, 35.80 feet on April 18 and 36.10 feet on June 6, 2016.

Source: U.S. Geological Survey, Water Data for the Nation, groundwater field measurements, accessed 2026-09-23

Census estimates for 2020 to 2024 count 10,360 housing units in Elmont with a median year built of 1952 and 24.9 percent built in the 1940s alone.

Source: US Census Bureau, American Community Survey 2020-2024 5-year estimates, Elmont CDP, tables B25034, B25035, B25003, B25024 and B25040, accessed 2026-09-23

Next Step

When does the Elmont damp show up?

After rain, in summer, or all year? Tell us, because in Elmont that answer rules groundwater in or out almost by itself.

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Planning

Reading the timing of damp in an Elmont house

Elmont is a hamlet in the Town of Hempstead, so building permits go to the town rather than to a village hall. Its houses are a little older than the county's, with a median build year of 1952 and a quarter of them, 24.9 percent, from the 1940s alone. What the Elmont well shows is how slowly groundwater moves: the table sat about 36 feet down and barely shifted across a whole season. Water that appears after a storm and dries out within days, or shows up only in summer on cold walls and pipes, is not coming from that table. It is surface water, a leak or condensation, and each has a different fix from waterproofing a foundation. Keep a note of when the damp appears and when it goes; it is the most useful thing you can hand the assessor.

North Shore shingle colonial on a wooded hillside with a climbing driveway
A booking service, not the contractorWe arrange the job and a separately licensed New York firm carries it out, sets its own price and signs its own agreement with you.
The firm that assesses never removesState law keeps the company that writes the mold plan apart from the company that carries it out, and bars one owner from holding a stake in both on your property.
Every trade licensed and insuredEvery firm we book holds the New York license its part of the work calls for, and you can look any mold license up on the state's own open register.
Availability

What we arrange for Elmont homes

Mold Inspection and Assessment

Find out whether the water behind the mold is coming up from the ground or out of the house itself, and get the scope in writing before anyone quotes for removal.

Mold Inspection in Elmont →

Mold Remediation and Removal

Have the growth taken out by a licensed remediation firm working to the independent assessor's written plan, with the water that fed it repaired first.

Mold Remediation in Elmont →

Water Damage Drying and Restoration

Get the water out and the structure dried before mold starts, including the slab, the flooring and the finished basement walls where water hides.

Water Damage Drying in Elmont →
Next Step

Tell us what is happening in the Elmont house

Your note goes to a person who answers it. If what you have is summer condensation and a dehumidifier will handle it, that is what we will say.

Start Your Quote Call (315) 640-3590
Start Your QuoteCall (315) 640-3590
Start Your Quote