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Westwego, LA

Mold Assessment in Westwego on Walls That Were Never Replaced

A survey that knows what an original Westwego wall should contain, and so can spot quickly what was added to it that is trapping water.

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75.2FMean July dew point in the NOAA thirty year normals for the New Orleans airport, at or above the temperature a cooled house holds its walls at
$7,500The job size where Louisiana starts licensing mold work, and below it the written report and separation rules reach nobody
10 square feetThe EPA's line for a patch most people can clean up themselves, roughly three feet by three feet
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Mold Assessment quote in Westwego

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.

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Six quick questions, then your details. It takes under a minute, and the answers are what a local assessor would ask first.

Question 1What are you dealing with?
Question 2Is the house raised, or on a slab?

This is the question that splits the job in this metro, and the two answers have almost nothing in common. A raised house has a vented space underneath that pulls in outside air, so the problem is usually the floor system. A slab house has its plumbing cast into the concrete, so the problem is usually a leak you cannot see reaching the bottom of the wall. Answer with whatever you know.

Question 3Where do you think the water is coming from?

Worth knowing before you answer: in this climate a wall can get wet with no leak at all. The mean dew point at the airport is 75.2F in July, which is at or above the temperature air conditioning holds a wall at, so the room's own cooled surfaces can pull water straight out of the air. If none of the leak answers fit, that is genuinely useful information and not a wasted question.

Question 4Is anything still wet?

EPA guidance gives wet material roughly 24 to 48 hours before growth starts, which is why the date matters more than anything else here. One local caution: opening the windows to dry a room out does not work here in summer, because the outside air is carrying more water than the room is.

Question 5What is your position at the property?

It changes who we talk to and what has to be put in writing. Worth knowing if you rent: a landlord's own maintenance staff are exempt from the mold remediation license under Louisiana law, so work handled in house was not done by anyone the state was holding to it.

Question 6How soon do you want someone out?
Who you are, and which building

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?

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Local Detail

Westwego's unchanged housing and its 1976 flood map

Single-story brick ranch on sandy ground among tall slash pines under overcast sky

Westwego has 4,156 housing units with a median year built of 1970, and 74.5 percent of them predate 1980, the highest pre-1980 share of any place in this service area. The Census records no units built in 2020 or later and only 15 built between 2010 and 2019, making this the most static housing stock in the metro.

Source: United States Census Bureau, American Community Survey 2020-2024 five year estimates, accessed 2026-09-22

The LSU AgCenter states that any moisture that gets in a wall must be able to dry to the inside, that the interior side of the wall should be as permeable as possible, and lists what that rules out: no vinyl wallpaper, no oil-based interior paints and no interior vapor barrier on insulation.

Source: LSU AgCenter, Bill Robinson and Claudette H. Reichel, Ideal Wall Assemblies for Hot-humid and Mixed-humid Climates, accessed 2026-09-22

Westwego records 209 National Flood Insurance Program multiple loss properties, of which 183, 88 percent, predate the city's first flood insurance rate map of December 28, 1976, the latest first map date on the south shore. Only 17 have been mitigated.

Source: Federal Emergency Management Agency, OpenFEMA dataset NFIP Multiple Loss Properties, data as of August 2, 2026, accessed 2026-09-22

The EPA advises that if the moldy area is less than about 10 square feet, less than roughly a three foot by three foot patch, in most cases a homeowner can handle the job themselves.

Source: United States Environmental Protection Agency, accessed 2026-09-22

Local Context

What an original Westwego wall tells a surveyor

The advantage of a survey in Westwego is that the house is usually still the house the builder left. 74.5 percent of the city's homes predate 1980, the highest share in this service area, and the Census records only 15 built across the whole of the 2010s and none since. An original assembly is predictable, so the useful question is what changed on it: a vinyl wallcovering added in a later decade, an oil-based repaint, new flooring over an old slab. The first two are on the LSU AgCenter's list of what a wall in this climate should not carry on its room side, and each is quick to check.

Macro beads of condensation on a dark textured painted surface
We will tell you when the wall needs nobodyUnder about 10 square feet, the EPA says most people can clean it up themselves. If that is what you have, that is what you will be told.
Whoever assesses is not whoever removesLouisiana bars one company from doing both on the same property above $7,500. We keep them apart below it too, where the statute reaches nobody.
Check the license yourselfThe state licensing board runs a public Contractor Search by name, license number, city and parish. Look up whoever you are considering before money moves.
Deciding

The Westwego house history worth writing down

Gather what you know of the house's history before the visit: what was redecorated, when, and with what. That list shortens the survey. Westwego is its own city with its own permit desk and a first flood map from December 28, 1976, and 183 of its 209 repeat-loss properties were built before that date, so the report should say whether the house has taken water and how high. If the growth is on the back of a wallcovering and under about ten square feet, the fix may be yours to do.

  1. What has been added since it was built

    Paper, paint and flooring changes are where an original wall usually goes wrong. List what you know.

  2. Whether the house predates December 1976

    Before Westwego's first flood map, no elevation rule applied. The report should record whether that house has flooded.

  3. Whether it is small enough to do yourself

    Under about ten square feet, the EPA says most homeowners can handle it once the water is found.

How mold assessment works →

Next Step

What has been redecorated, and when?

Tell us about any wallpaper, repainting or new floors. In a Westwego house that list is half the survey.

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Related

Westwego removal and drying after the survey

Questions

Westwego survey questions about older houses

Our Westwego house has never been renovated. Is that good or bad for mold?

It makes the survey easier. An untouched assembly behaves predictably, and in a house built before 1980 it has had decades to show where it fails. The questions become narrow: has anything been added to the room side of an exterior wall, and has water ever come in. Both are quick to answer on site.

Is Westwego's flood map reliable for my street?

Treat it with care. Across the West Bank a large share of repeat flooding happens outside the mapped high risk zone, and in Westwego that is 92 of 209 repeat-loss properties, 44 percent. The survey records what the house shows regardless of the zone letter.

Next Step

Send the Westwego house and its history

Build year if you know it, and what has changed since. A person reads it and says what the survey would look at first.

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