Mold Assessment in Marrero When Height Has Not Kept Water Out
A survey that traces how water reaches this particular house, from the yard, the roof or the room's own air, rather than trusting the zone letter.
Mold Assessment quote in Marrero
Tell us what you can see or smell, roughly where in the house it is, and whether the house is raised or on a slab. Those three things narrow it more than the size of the patch does, because they point at how the water is arriving rather than where it ended up.
Would you rather talk it through? Call (315) 640-3590.
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Marrero's height against its off-map flood record
Across the West Bank a large share of repeat flooding happens outside the mapped high risk flood zone: 715 of Marrero's 1,928 multiple loss properties, 37 percent, 338 of Harvey's 794, 43 percent, 138 of River Ridge's 314, 44 percent, and 92 of Westwego's 209, 44 percent. In Terrytown the figure is 11 of 304, under 4 percent.
Source: Federal Emergency Management Agency, OpenFEMA dataset NFIP Multiple Loss Properties, data as of August 2, 2026, accessed 2026-09-22
Marrero's Census Bureau interior point stands 5.98 feet above sea level under the USGS national elevation dataset, one of the higher south shore readings in this service area.
Source: United States Geological Survey, The National Map, 3D Elevation Program Point Query Service, 1/3 arc-second elevation, accessed 2026-09-22
Marrero has 13,920 housing units with a median year built of 1972 and 76.8 percent of them, 10,697 units, are single family detached, one of the highest detached shares on the West Bank. 69.2 percent of the stock predates 1980 and 285 units are mobile homes.
Source: United States Census Bureau, American Community Survey 2020-2024 five year estimates, accessed 2026-09-22
Louisiana R.S. 37:2158(A)(19)(c) makes it a violation for a mold remediation contractor to perform both mold assessment and mold remediation on the same property.
Source: Louisiana State Licensing Board for Contractors, Contractors Licensing Law and Rules and Regulations, effective August 1, 2022, accessed 2026-09-22
A Marrero survey reads the lot before the room
Buy a Marrero survey on the house, not the map. Across the West Bank a large share of repeat flooding happens outside the mapped high risk zone, and in Marrero that is 715 of 1,928 multiple loss properties, 37 percent. The town's interior point also reads 5.98 feet above sea level, one of the higher south shore readings we cover. Neither number tells you how water gets into your walls. Most homes here are detached, 10,697 of 13,920, so all four walls face the weather and the yard, and the survey walks the outside grade, the gutters and the foundation line before it reads the rooms.
What to watch at a Marrero house before the survey
Watch the yard in the next heavy rain before anyone comes out, and note where water stands and for how long. That observation is worth more than the zone letter. If the house is one of Marrero's 285 mobile homes, say so, because the underfloor and the skirting are read differently from a slab or a pier house. Decide who the report is for, and remember that Louisiana bars a mold remediation contractor from doing both the assessment and the removal on one property, which is what makes the finding worth trusting.
Where the yard holds water
Standing water against the foundation after rain points the survey at grade and drainage before the walls.
What kind of house it is
Detached on a slab, raised on piers, or a mobile home. Each takes water in a different place and is read differently.
Whether the zone letter is settling anything
In Marrero 37 percent of repeat flooding is off the map. Treat the zone as an insurance question, not a diagnosis.
Where does the yard hold water after rain?
Tell us which side of the house and how long it stands. In Marrero that is often the first clue.
Marrero removal and drying after the survey
Marrero survey questions about elevation and zones
Marrero is higher than most of the south shore. Why is my house wet?
Because elevation at one point says little about how water moves across a lot. Marrero's interior point is 5.98 feet above sea level and the town still records 715 repeat-loss properties outside the mapped high risk zone. Grade, gutters, the foundation line and the room's own air are all candidates, and the survey checks each before naming one.
Will the survey tell me what the removal would cost?
It gives you the quantities a removal contractor prices from: square footage room by room, the materials involved and how far containment has to reach. The price itself comes from the firm doing the removal, which Louisiana keeps separate from the survey: a mold remediation contractor may not perform both on the same property.
Send the Marrero house as it sits on its lot
Slab, piers or a mobile home, and where the damp shows inside. A person reads it and says what the survey would cover.