These are the questions we hear most from homeowners in Denham Springs, Walker, Watson, and the rest of Livingston Parish. Each one starts with the answer. If yours isn’t here, call and describe what you’re seeing — that’s a five-minute conversation.
If it’s in Livingston Parish and older than 2017, there’s a good chance. Watson recorded about 31 inches of rain in two days, and roughly three out of four homes in the parish were counted as total losses. Most of them were outside the mapped 100-year floodplain, and only about 23 percent of the parish carried flood insurance. Look for a cut line in the drywall two to four feet up, newer flooring over an older slab, or a rebuild permit in the parish records. A previous owner should have disclosed it.
Get the water out and the wet material open to air as fast as you can, and don’t run the air conditioner if you think the growth is in it — EPA says a contaminated system can spread mold through the building. Anything porous that stayed wet past two days generally has to come out rather than dry out. Louisiana’s Department of Health says to hire a professional for anything bigger than about ten square feet or anywhere in the HVAC. Call and tell us what got wet.
Earthy and musty, like a damp cardboard box or a cabin that’s been shut all winter. It’s often the first thing a homeowner notices in a room that was rebuilt after 2016, and it gets stronger after rain or when the AC has been running. A musty odor is a recognized sign of hidden growth even when nothing is visible. Tell us where you smell it and we’ll tell you whether it sounds like a problem.
Mildew is a common name for mold that grows flat on a damp surface — the gray film on a shower curtain or a window frame. It wipes off. Mold that has gotten into a porous material like drywall, wood, or insulation is rooted in it and doesn’t. CDC doesn’t draw a line between kinds; anything growing indoors gets removed the same way. The useful question isn’t which word to use. It’s what surface it’s on.
Condensation. Cold glass in a house that runs air conditioning ten months a year collects water every warm morning, and the sill and the drywall under it stay damp. It usually starts as dark specks in the corners. On a painted sill you can clean it. If the drywall below the window is soft or stained, water is getting in around the frame, and that part of the wall is a removal job rather than a wipe-down.
Sometimes. A vent surface that drops below the room’s dew point sweats, and in Louisiana at 75 degrees and 60 percent humidity that happens most days. Specks on the metal grille alone can be cleaned. Growth inside the boot, a musty smell when the system starts, or a dark ring that keeps returning around one vent points toward the duct or the coil. EPA says condensation near the cooling coil is a major factor in duct contamination. Call and tell us which vents.
In an attic: dark streaks or fuzzy patches on the underside of the roof deck, usually along the eaves or above a bathroom, and insulation that’s matted or stained. Under a raised house: a musty smell coming up through the floor, joists with white or dark growth, insulation hanging loose and wet, and floors that feel soft or cool. Both spaces stay warm and damp for most of the year here, and both usually mean water is getting in somewhere it shouldn’t.
Not long. EPA says to dry water-damaged materials within 24 to 48 hours. CDC says anything wet for more than 48 hours will generally support visible and extensive growth. LSU AgCenter says a new colony can form in as few as three days. A supply line that dripped inside a cabinet over a long weekend has already passed that mark by the time you open the door.
If the water got behind the drywall, the mold is already there — the back face of the sheet and the cavity behind it are where growth starts, not where it ends up. EPA lists the back side of drywall, the inside of walls around pipes, and the underside of carpet as the usual hiding places. What you see on the painted side is often the last stage, not the first. Call before the affected area gets larger.
Yes, mostly by air. Disturbing a moldy surface — sanding it, pulling out a wet carpet, ripping down a ceiling — sends spores through the house, and a running air handler carries them further. That’s why the work area gets sealed and put under negative pressure before anything comes out. Water moves it too: a leak that runs along a bottom plate can wet the wall of the next room before it shows on either side.
It can. EPA says running an HVAC system you suspect is contaminated can spread mold through the building, and that insulated ductwork that has gotten wet or moldy can’t be cleaned effectively and should be replaced. Louisiana’s Department of Health repeated that guidance after Hurricane Ida. If the musty smell is strongest when the system kicks on, HVAC and duct mold remediation is the page to read.
CDC’s list is stuffy nose, sore throat, coughing, wheezing, burning eyes, and skin rash. Louisiana’s Department of Health adds headaches and sneezing. EPA notes that mold can irritate the eyes, skin, nose, throat, and lungs of people with and without a mold allergy, and that reactions can be immediate or delayed. CDC is also honest that exposure may cause a range of effects or none at all. We don’t diagnose. We remove the mold.
Dark mold is handled exactly like light mold. CDC says the type doesn’t need to be identified because all molds are treated the same way and removed. The species people mean by “black mold” grows on drywall, ceiling tile, and paper that has stayed wet for a long time, which is why it shows up after long leaks and floods. The color tells you the material was wet a while. It doesn’t change the job. See black mold removal for what actually happens.
Not for the removal. CDC says it doesn’t matter what kind of mold is present; all of it should be treated the same way and removed. The most common indoor kinds — Cladosporium, Penicillium, Aspergillus — look green, blue-green, brown, or black depending on what they’re growing on. Knowing the name wouldn’t change which drywall comes out or how the framing gets cleaned. The type of mold doesn’t matter. The fix is the same.
Dead mold can still trigger allergic reactions, which is why the industry standard for remediation is removal rather than killing it with a chemical. Spraying a wall and leaving the material in place leaves the allergen in your house. The goal is to physically take out what grew and clean what stays, then keep it dry.
Usually, for a single-room job. The work area is sealed in plastic and kept under negative pressure, so the rest of the house stays usable; you’ll want to stay out of that room and expect some noise from the air equipment. For whole-home work, growth in the HVAC, or a household where someone is already reacting, staying with family for a few days is sometimes the practical choice. We’ll talk it through before work starts.
If someone in the house is sick, see the doctor — that’s not our lane. Tell the doctor there is visible mold or a musty smell at home, because CDC lists people with asthma, allergies, or a weakened immune system as more likely to react. Then call us about the house. The two can happen the same day, and neither one has to wait on the other. Describe it to us and we’ll tell you if it sounds like a problem.
EPA doesn’t recommend bleach as a routine practice for mold cleanup. On a hard surface it may lighten the stain. On drywall or wood it wets the material, the growth inside stays where it was, and the wall looks fine for a few weeks. Bleach isn’t the fix. Removing the affected material and controlling the moisture is.
No. EPA says to clean up mold and dry the surface before painting, and never to paint or caulk over it. The paint fails, the growth continues on the paper face of the drywall underneath, and the next buyer’s walk-through finds it anyway. Covering it doesn’t remove it.
The surface looks better and the problem stays. Mold on drywall is rooted in the paper and the gypsum, not sitting on top, and the moisture that fed it is still in the wall. Wiping the visible patch also disturbs it, which spreads spores into the room. For a hard, non-porous surface under about ten square feet, cleaning works. For anything that soaks up water, it’s a delay.
EPA’s line is about ten square feet — a patch three feet by three feet — on a hard surface, with gloves, goggles, and an N-95 mask. Bigger than that, or on drywall, insulation, carpet, or inside a cabinet, EPA says to hire a professional. Louisiana’s Department of Health adds: anything in the HVAC, or anything involving sewage or contaminated water, regardless of size.
Only a little. Louisiana requires a state mold remediation license, with 24 hours of board-approved training, for any mold job over $7,500, and a general residential contractor without that license is limited to twenty square feet of mold work. Advertising mold remediation without the license is against the law. A good handyman knows that and will say so.
Because the water never stopped, or because the growth was inside the material and only the surface got cleaned. If it keeps coming back, something changed — a roof flashing, a supply line, a drain pan — and the mold is the symptom. The fix is stopping the moisture, removing what grew, and cleaning what stays. Call and tell us where it keeps showing up.
No. Louisiana law says the company that assesses a property for mold cannot be the company that remediates it, so we stay on the removal side and don’t sell testing. CDC doesn’t recommend testing anyway, and Louisiana’s Department of Health says if you can see the mold, sampling is unnecessary. If you already have an assessor’s report, keep it nearby when you call — it helps us scope the job.
No. Louisiana’s mold licensing law separates assessment and remediation on the same property, so one company can’t do both for you. The reason is plain: the company that tells you how bad it is shouldn’t be the one paid to fix it. If you want a third-party opinion before or after removal, it has to come from a separate company by law, and we’ll never steer you toward one we own.
Look the company up at lacontractor.org or call the licensing board at 1-800-256-1392. Mold remediation is its own classification, separate from a general contractor’s license. Ask for the license number, a certificate of insurance, and a written scope before work starts — from us or from anyone else who gives you a price.
It depends, and a phone call can only narrow it. The drivers are how far the growth has spread, whether it reached inside walls, insulation, or the HVAC, how many rooms are involved, and whether it’s a home or a commercial building. A bathroom ceiling and a rebuilt house with growth in four rooms are very different jobs, so prices vary widely. The real number comes from a visit — or from an assessor’s report, if one already spells out the findings. What makes a job expensive isn’t the mold itself. It’s how far the affected area spreads while you wait.
We document. Photos, a log of what came out and from where, and an itemized report are what an adjuster works from, and you get all of it. We can’t tell you what your policy will pay: homeowners policies generally cover mold that follows a sudden covered event and exclude mold from long leaks, humidity, or neglect, and flood damage is a separate policy entirely. Speed matters on both. If you’re in a claim now, say so when you call.
It can. One appraisal study found that 42 percent of buyers wouldn’t bid on a home with a mold history, even after remediation, and estimated a value discount in the range of 20 to 37 percent for homes that carried the stigma. A removed, documented problem lands very differently than one the buyer discovers. In Livingston Parish, where most houses already carry a 2016 story, the report is what separates the two.
Yes. The Louisiana Real Estate Commission’s property disclosure form asks sellers directly about mold, mildew, water intrusion, and flooding. Concealing a known problem exposes you to rescission or a price reduction within a year of the sale, plus damages and attorney fees if you knew. A removed problem with a written report is a checked box and an attachment. If the house is going on the market, tell us — we write the report with that reader in mind.
Containment is the plastic wall between the work and the rest of your house. We seal the room, keep the air inside it under negative pressure so it flows in rather than out, and run that air through a HEPA filter. EPA’s remediation guidance calls for it so that spores disturbed during removal stay where the work is. Without it, tearing out a moldy wall is one of the quickest ways to spread mold through a house.
If it grew mold, usually yes. Drywall is paper over gypsum, and mold roots into the paper; EPA and CDC both say porous materials that have been wet and moldy generally can’t be cleaned and should be removed. The cut typically runs above the visible stain because water wicks up inside the wall. Framing behind it stays and gets cleaned and dried. Tile, metal, and sealed concrete can usually be cleaned in place.
Tell us what you’re seeing or smelling, which room, and what got wet — whether that was last week or in 2016. Give us a callback number and your ZIP code. If we’re available you’ll be connected right away; if we’re on a job you’ll get a scheduled callback, and we’ll tell you which number to watch for so you know it’s us. Removal and remediation only. Start with a conversation.