North Shore, the middle and the South ShoreGround or house, settled first(315) 640-3590
$100 off your first job, credited by us. Terms apply.

Mold and Water Guides for Nassau County Homes

Each guide answers one question that decides what a Nassau homeowner should pay for first. How deep the water sits under the house. Where mold grows in a slab house with no basement. Why mold turns up under a new floor on an old slab. Why a basement far above the water table still gets wet. And how to tell groundwater from a leak, and who to call once you know.

Guides

Five questions to settle before anyone sells you a fix

In Practice

What the work looks like

Next Step

Still not sure which one applies?

Describe the situation and we will point you at the right next step.

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.
Get In Touch

Request a Quote

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.
Start Your Quote

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.

Next Step

Tell us what you are seeing

Tell us what you are dealing with and we will take it from there.

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