Slidell homeowners call us with the same questions after every wet season, so here they are with the answers up front. If your question isn’t on the list, call and describe what you’re seeing — it takes a few minutes.
Stop the water first, then deal with the growth. Louisiana’s Department of Health said after Ida that mold cleanup should start only after every pathway for moisture into the structure is closed — a tarped roof, dried-out windows, no more water coming in. Photograph everything before anything is thrown out. Then look at what stayed wet: drywall, insulation, cabinets, the floor. Call and tell us what the storm did to the house.
Not long. EPA’s guidance is to dry water-damaged materials within 24 to 48 hours, and CDC says anything wet for more than 48 hours will generally support visible and extensive growth. LSU AgCenter says new colonies can form in as little as three days. In Slidell, a wall that took rain on a Saturday during a week of tropical weather has usually passed that window before the sun comes back.
In the attic: dark streaks or fuzzy patches on the underside of the roof deck, damp or matted insulation under a stain, a musty smell at the hatch, and rafters that look gray or black near a valley or a vent. Under a raised house: a soft spot in the floor, a smell that comes up through the boards after rain, standing water on the dirt, and insulation hanging out of the joist bays. Any of those is a call.
Often, yes. A vent sweats whenever its surface drops below the room’s dew point, and in Slidell humidity that is most summer days. A dark ring around the grille may be growth on the vent itself, or the first visible sign of growth in the duct behind it. EPA says running a system you suspect is contaminated can spread mold through the house. Switch it off and call — HVAC and duct mold remediation explains what happens next.
Condensation. Cold glass meets humid indoor air, water collects on the sill, and the paint or the wood underneath stays damp for weeks. Older single-pane windows in Olde Towne and along Bayou Liberty do it all winter. On a hard painted sill it can usually be cleaned. If the drywall around the frame is soft or stained, water is getting in around the window, and that is a removal job.
Mildew is a common name for surface mold — flat, powdery, gray or white, on tile, grout, shower curtains, and window frames. Mold is the same family growing into the material: fuzzy, spreading, green, black, or brown, on drywall, wood, and fabric. The label doesn’t change the decision. CDC says all mold gets treated the same way. Surface growth on a hard material you can clean; growth in a porous material comes out.
Earthy and damp, like a wet cardboard box or a cabin that has been shut all winter. Health agencies list a musty odor as one of the recognized signs of hidden growth, and most people notice it well before they see anything. Pay attention when one room smells different from the rest of the house, or when the smell gets stronger after rain. Call and tell us where you smell it.
Yes. Spores travel on air, on shoes, and on the moldy drywall someone carries through the hallway. The AC is the most efficient way to move them, which is why EPA says not to run a system you suspect is contaminated. That is also why containment matters: the work area gets sealed and put under negative pressure so removal in the back bedroom doesn’t become a problem in the kitchen.
If water got behind the drywall, growth on the back of the sheet and inside the cavity can start on the same 24–48 hour schedule EPA gives for any wet material. The inside of a wall dries far slower than the face of it, and in Slidell’s humidity it may never fully dry on its own. Tell us when the water problem started and we’ll tell you what that usually means.
CDC lists a stuffy nose, sore throat, coughing, wheezing, burning eyes, and skin rash. Louisiana’s Department of Health adds headaches and sneezing. EPA says mold can irritate the eyes, skin, nose, throat, and lungs of people with and without allergies, and that reactions can be immediate or delayed. CDC is also clear that exposure may cause any of those, or nothing at all. We can’t diagnose anyone; we can remove the mold.
Mold is an allergen, and EPA says allergic reactions to it are common and can show up right away or hours later. The Institute of Medicine found enough evidence to link indoor dampness and mold to coughing, wheezing, and upper-respiratory symptoms in otherwise healthy people. If someone in the house has had a “cold” for the whole month since the last leak, mention it when you call.
Dark mold gets the same treatment as every other kind. CDC says identifying the type isn’t necessary because all molds should be handled the same way and removed, and it says the reported link between the species called black mold and severe illness in infants has not been proven. What CDC does say is that damp, moldy homes can cause respiratory symptoms. Black mold removal covers what actually happens with a dark patch.
For a single contained room, usually yes. The work area is sealed in plastic and kept under negative pressure, so the rest of the house stays usable. For work across several rooms, in the HVAC, or where someone in the home has asthma or a weakened immune system, staying elsewhere for the duration is often the practical choice. We talk it through before the job starts.
Yes. Dead mold is still an allergen, which is why killing it isn’t the goal — removing it is. That principle comes from the ANSI/IICRC S520 remediation standard, and it’s the reason EPA doesn’t recommend bleach as a routine treatment. Spraying a wall and leaving the material in place leaves the allergen in the house.
If someone is having trouble breathing, the doctor comes first — every time. For a lingering cough or itchy eyes that seem tied to the house, do both: tell the doctor about the moisture history, and call us about the growth. CDC says the health response to mold varies from person to person, and no mold company can tell you your symptoms are the house. Call and describe what you see.
No. Drying stops new growth from starting. It doesn’t remove what already grew, and what already grew is still an allergen when it’s dry. And “dry now” in Slidell is temporary — the next tropical rain or the next humid week restarts it unless the wet material came out and the water source was closed.
Only in the first day or two after a fresh spill, before anything has started to grow. Once the material smells musty or shows discoloration, the EPA, CDC, and FEMA cleanup guide says fans can spread mold through the house. Turn them off, and call.
Three of the twelve most humid cities in America are in Louisiana, and Slidell sits between two of them on a lake. Add year-round air conditioning making condensation inside walls and ducts, a state that ranks fourth in hurricane landfalls since 1851, and a housing stock that has been through Katrina and Ida. Wet materials here don’t get many dry days.
No. Louisiana law requires that mold assessment and mold remediation on the same property be done by different companies. That is why we do removal only and don’t offer testing — the law’s model is our model. If you already have an assessor’s report, keep it nearby when you call; it helps us scope the work.
For any job over $7,500, yes — Louisiana requires a state mold remediation license from the Louisiana State Licensing Board for Contractors, which takes twenty-four hours of board-approved training. A general residential contractor without it is capped at twenty square feet of mold work. Ask any company for the license number before work starts.
Look the company up at lacontractor.org, or call the licensing board at 1-800-256-1392. Ask for the license number, a certificate of insurance, and a written scope before anyone opens a wall. That applies to us and to anyone else you call.
EPA’s line is about ten square feet — roughly a three-by-three area — on a hard surface. Louisiana’s health department adds two more cases for calling a professional: any mold in the HVAC system, and any growth that followed sewage or contaminated water, which includes surge. Growth on drywall, insulation, or carpet is a removal job at any size, because the material has to come out.
The wall looks fine for a while, and the growth inside the material keeps going. Drywall, ceiling tile, and insulation are porous — the mold is in them, not just on them — and scrubbing wets the surface again. If the moisture that fed it is still arriving, the stain comes back in the same place. Recurring mold is telling you something. Call and tell us where it keeps returning.
EPA doesn’t recommend bleach as a routine practice for mold, and says never to mix it with ammonia. On drywall or wood, bleach whitens the surface while growth inside the material stays put, and it adds water to something that needed to dry. Removal and moisture control matter more than any chemical.
It depends, and honestly more than a phone call can settle: how far the growth has spread, whether it is inside walls, insulation, or the HVAC, how many rooms are involved, and whether it’s a house or a commercial building. Prices vary widely for those reasons. The real number comes from a visit — or from an assessor’s report, if one already spells out the findings. What we can say is that a small patch handled now is a smaller job than the same wall next year.
Sometimes, with limits. Homeowners policies generally cover mold that follows a sudden covered event — wind opens the roof during Ida, rain comes in — and exclude mold from a leak that ran for months. Many policies cap mold payouts at a fixed amount. No one here can tell you what your policy will pay. What we do is document the job so your adjuster has something specific to look at.
We document. Photos before and during the work, a log of what came out and where, and the written report Louisiana requires at the end. That is what an adjuster asks for. We don’t negotiate with insurers and we never promise a claim will be paid. If you’re inside a claim now, tell us when you call so we time the photos right.
Yes. The Louisiana Real Estate Commission’s property disclosure form asks about mold, mildew, water intrusion, and flooding, and a seller who hides a known problem faces rescission and damages claims after closing. In Slidell, buyers already expect a water history — what they want to see is that it was handled and documented. If you’re listing, tell us when you call.
Containment is the plastic-sheeted enclosure around the work area, kept under negative pressure so air flows in and never out. EPA’s remediation guidance calls for it because opening moldy drywall releases spores, and without a sealed space they ride the air into every room. Everything removed gets bagged inside the enclosure before it leaves. Removal without containment can leave a house worse than before the work started.
If the drywall is moldy, yes. Drywall is paper and gypsum, and growth goes into it rather than sitting on it, so EPA and CDC guidance treats it as material to discard rather than clean. The studs behind it stay and get cleaned where they stand. How many sheets come out is set by moisture readings on the framing, not by the size of the visible stain.
Carpet and pad that got wet and moldy generally come out; they can’t be cleaned the way a hard surface can. Upholstered furniture, mattresses, and cardboard that sat in surge or floodwater usually go too. Solid wood, metal, glass, and hard plastics can often be cleaned and kept. We tell you item by item before anything leaves the house.
We answer at any hour. Describe what you see or smell, where it is, what got wet, and when. Give us your ZIP code and a number to reach you. 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.
Color tells you nothing useful. Common indoor molds come in green, black, brown, white, gray, pink, and orange, and CDC says it isn’t necessary to identify which one you have because all mold should be removed the same way. Louisiana’s Department of Health says if you can see growth, sampling isn’t needed. See a patch of any color that doesn’t wipe off? Start with a phone call.