Attic Mold Removal in Shreveport, LA

Where mold in the attic comes from

A bath fan that ends in the attic. If the duct from the bathroom fan stops under the roof instead of going through it, every shower sends warm wet air straight onto the roof deck. It is the most common cause and one of the cheapest to fix.

A roof leak. Flashing around vents and chimneys, an old pipe boot, or shingles lifted in a spring storm let water onto the deck and the insulation. In a Shreveport summer that wet patch rarely dries on its own.

An attic that cannot breathe. Soffit vents buried under insulation, no ridge vent, or a gable vent painted over leave hot, humid air trapped against the deck, where it condenses overnight.

Cold AC ducts in a hot attic. Duct runs with torn wrap sweat and drip onto the insulation and the ceiling below. That side of it is covered on the mold in AC units and ducts page.

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Who assesses the attic, and who removes the mold

Louisiana does not allow one company to both assess and remediate mold on the same property. An independent assessor looks at the deck, the framing and the insulation, works out which cause is behind it, and samples where that answers a question. The removal crew works from that report. On larger jobs the assessor comes back for a final air test, and that report is what a buyer's inspector or agent will ask to see. More on assessments is on the mold inspection and testing page.

How attic mold removal is done

Close the attic off from the house. The hatch gets a plastic airlock, and a filtered air machine keeps the attic under slight suction so nothing falls through light fixtures into the rooms below.

Pull the ruined insulation. Insulation that is wet or has grown mold is bagged and removed, because it cannot be cleaned. When only the layer under a leak is affected, only that layer comes out.

Clean and treat the wood. The underside of the deck, the rafters and the tops of the ceiling joists are cleaned by blasting or scrubbing, vacuumed with filtered equipment and treated. Any staining left behind is dead growth and gets sealed.

Fix the cause. The fan duct is run out through the roof or a gable wall, the leak goes to a roofer, soffit vents are cleared with baffles, and a ridge vent is added where the attic needs one.

Dry it, then insulate. Dehumidifiers run until the deck reads dry, then new insulation goes in.

A typical attic takes two to three days, plus any roofing or ventilation work.

Attic mold and selling a house

Attic mold often comes to light because a buyer's inspector photographed the roof deck. The buyer wants it handled before closing, or a credit for it. An independent assessment puts a written scope and a number on it, and removal followed by an independent air test gives the buyer's side the paperwork to close the item. Tell us your inspection deadline when you call so the work fits inside it.

What attic mold removal costs in Shreveport

Cleaning and treating the deck and framing across a whole attic usually runs $2,500 to $8,000, depending on the area, the roof pitch, how easy the attic is to get into, and how much insulation has to be replaced. Rerouting a bath fan is a few hundred dollars; roofing and ventilation work is priced separately. The assessment is typically $300 to $600. Every price on the site is on the mold removal cost page.

Prices on this page are estimates from previous work. We cannot quote an exact price. The actual cost can be lower or higher depending on the job. The person who knows is the professional who will do the work. You get a written quote after we see the house.

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Getting the attic looked at

Call (318) 666-4874 and tell us what you have seen up there, whether the roof has leaked, and whether there is a sale and a deadline involved. If you would rather write it down, use the callback form below or the contact page. If the ceilings below have stained, see popcorn ceiling mold; for the bathroom the fan comes from, see bathroom mold removal.