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How Much Does Mold Remediation Cost in Southern Illinois?

October 8, 2026
What does mold remediation cost, and what drives the price? A breakdown for Southern Illinois and St. Louis homeowners. Free estimates from All Clean generated image

If you've been devastated by water, mold, fire, and/or smoke damage, know that your cherished possessions, your home or business, can all be restored to pre-damage condition; bringing back your peace of mind.

Whether water, mold, fire, or smoke causes damage to your home or business, the effects are heartbreaking and often life-changing. We at All Clean Restoration understand the devastation and pain these events can cause. We also understand that quick and proper action is crucial to prevent further damage, red tape, and cost.

Call us any time, day or night:

1-800-4223944

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You found mold behind the drywall, and the first question isn’t “is this bad?” It’s “what is this going to cost me?”

Here’s an honest answer. Mold remediation cost depends on how much mold there is, where it’s growing, and what caused it. A small, contained area costs far less than mold spread through walls, HVAC, or a whole basement. All Clean Restoration gives free, upfront estimates across Belleville and the St. Louis Metro — no scare tactics.

What Drives the Cost of Mold Remediation?

A few factors decide the price more than anything else. Understanding them helps you read any estimate you get.

  • Size of the affected area. A closet is one thing; a finished basement is another.
  • Mold behind walls, under floors, or in your HVAC is harder to reach than mold on a surface.
  • The cause. If a leak is still active, that has to be fixed first, or the mold comes right back.
  • Materials involved. Porous materials like drywall and insulation often need removal, not just cleaning.
  • Air quality work. Containment, HEPA filtration, and testing add cost but protect your health.

We measure and document all of this before we quote, so the number is real — not a guess that grows later.

Why Won’t Anyone Give a Flat Price Over the Phone?

Because no two mold jobs are the same, and an honest company won’t pretend otherwise. A phone “quote” without an inspection is a number designed to get in the door.

We tell you what you need to hear, not what’s easiest to say. That means we look first, measure the moisture, find the source, and then quote. Our approach to mold removal and remediation starts with finding the water feeding the mold.

Does Insurance Cover Mold Remediation?

Sometimes. It usually depends on what caused the mold.

If the mold grew from a sudden, covered event — like a burst pipe you addressed quickly — your policy may cover remediation. If it grew from a long-ignored leak, coverage is less likely. We document the cause and work directly with your adjuster, as described on our insurance FAQ.

Can You Save Money by Removing Mold Yourself?

For a small patch on a hard surface, maybe. For anything larger, DIY usually costs more in the end.

The EPA recommends professional help when mold covers more than about 10 square feet, or when it’s in your HVAC. Disturbing mold without containment spreads spores through the house. That turns a small job into a big one — which is exactly how DIY water cleanup often leads to more mold.

What Do You Get for the Cost?

A real remediation is more than spraying and wiping. Here’s what a professional job includes:

  1. Inspection and moisture mapping to find every affected area.
  2. Containment with barriers and negative air pressure so spores don’t spread.
  3. Removal of mold and unsalvageable materials.
  4. HEPA filtration and antimicrobial treatment to clean the air and surfaces.
  5. Drying to remove the moisture that started it all.
  6. Clearance so you know the home is safe.

We handle mold across the Metro East and St. Louis, from Fairview Heights to Highland. See our full service area or request a free estimate.

Get a real number, not a scare quote. Call All Clean Restoration for a free mold inspection and honest estimate. A real person answers 24/7, every single day of the year — weekends and holidays too. Licensed. Bonded. Insured. IICRC-certified. BBB A+. Serving Southern Illinois and the St. Louis Metro since 1981. Illinois: 618-235-3202 · Missouri: 314-454-0442 · Se Habla Español: 618-792-3633

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From a tiny, rhythmic drip-drip-drip on the ceiling to a full-scale structural disaster, water damage moves with terrifying speed. What starts as a small discoloration on your drywall can evolve into a costly emergency in just a matter of hours. Here is a look at the timeline of a leak and expert advice on how to stop a disaster in its tracks. At All Clean Restoration, we have spent over 45 years helping homeowners and business owners navigate the devastation and pain these events can cause. We know that when it comes to water, every second counts. The Anatomy of a Disaster: How Fast Does Water Damage Spread? Water is the "universal solvent," and it begins destroying building materials the moment it makes contact. The First Minutes: Water saturates carpets, upholstery, and insulation. It seeps into crevices in hardwood floors and begins wicking up drywall. The First 24 Hours: Drywall begins to swell and disintegrate. Metal surfaces may start to tarnish, and furniture can begin to crack or stain. Most importantly, mold and mildew can begin to colonize in as little as 24 to 48 hours. The First Week: Structural integrity is compromised. Wood swells and warps, and the musty odor of microbial growth becomes overwhelming. At this stage, the cost of property restoration skyrockets. Expert Advice: What to Do When You Spot a Leaky Roof A roof leak is often the silent precursor to a "black water" event or massive ceiling collapse. If you notice a stain or an active drip, follow these steps immediately: 1. Contain the Flow Place a bucket or waterproof container under the drip. To prevent splashing (which can damage nearby flooring), pin a piece of string to the ceiling and let the water travel down the string into the bucket. 2. Release the Pressure If you see a "bubble" forming in your ceiling paint, the water is pooling behind the drywall. Carefully use a small pin or screwdriver to puncture the center of the bubble. This releases the weight of the water, preventing the entire ceiling section from collapsing. 3. Protect Your Assets Move furniture, electronics, and valuables to a dry area immediately. If items are too heavy to move, use plastic sheeting to cover them. 4. Call for Professional Water Extraction Don't wait for the storm to stop. All Clean Restoration provides 24/7 emergency response. Our IICRC certified technicians use state-of-the-art moisture detection tools and infrared cameras to find where the water is hiding behind your walls and under your floors. Why All Clean Restoration? We aren't just a cleanup crew; we are a full-service residential and commercial property restoration company. We specialize in: Structural Drying: Using industrial-grade air movers and dehumidifiers to save your walls and framing. Hardwood Floor Drying: Specialized equipment designed to save your expensive flooring from "cupping" or warping. Insurance Claim Assistance: As an insurance carrier preferred company, we work directly with your adjuster to document the damage and streamline the claims process, reducing your stress. Don't Let a Drip Become a Disaster If your home or business has suffered water damage, you need a team that understands the science of drying. We serve the St. Louis and Metro East areas with rapid, professional service designed to get your life back to normal. Contact All Clean Restoration today for a free estimate or call our 24/7 Emergency Hotline at 1-800-422-3944!

The Anatomy of a Disaster: How Fast Does Water Damage Spread?

Here is a look at the timeline of a leak and expert advice on how to stop a disaster in its tracks. At All Clean Restoration, we have spent over 45 years helping homeowners and business owners navigate the devastation and pain these events can cause. We know that when it comes to water, every second counts.

All Clean Restoration's Other Services

Whether water, mold, fire, or smoke causes damage to your home or business, the effects are heartbreaking and often life-changing. We at All Clean Restoration understand the devastation and pain these events can cause. We also understand that quick and proper action is crucial to prevent further damage, red tape, and cost.

We are honored to help in your time of need.

We are committed to delivering exceptional customer service and restoring homes and businesses to their pre-loss condition. For more than 40 years throughout Southern Illinois, we've prioritized communication with our clients, walking them through the entire restoration process from the moment we arrive to walking back into their restored homes and offices.

618-235-3202

Licensed  |  Bonded  |  Insured