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Mold Removal & Prevention, Decatur, IL

We Treat Your Home Like Our Own


4.8/5 Rating with 2,000+ Reviews
Mold on a basement wall.

Mold Removal Protects Against The Biological Growth That Threatens Your Health And Compromises Your Air Quality.

Acculevel, Inc. BBB Business Review

Basement Mold Removal & Prevention

We specialize in mold removal, treatment and prevention of biological growth in Decatur, IL. Our mold removal experts can help identify the underlying cause of your mold problem and fix it permanently. No more constant battles every year with mold and mildew and that musty odor. We can treat and eliminate your current moldy basement or crawl space problem. Read on to learn more about how dangerous mold can be and it can be stopped in its tracks. To schedule a free in-home assessment, call or email us today!

Unfortunately, your basement or crawl space is a perfect environment for biological growth.  It’s dark, damp, and often has poor ventilation.  Mold growth may be obvious, marked by dark or white patches visible on your walls, floors, or ceilings, or it may be hidden behind walls or under carpets.  

Even if you can’t see it, you can usually identify it by a musty smell. If left untreated, mold, mildew, bacteria, and other biological growths can lead to significant health problems for you and your family, so if you suspect you have mold in your home you need to act quickly.

Mold can impact almost all surfaces commonly found in your basement or crawl space, including drywall, wood, HVAC, pipes, drains and other finishes.

mold wall

What Causes Biological Growth?

Drywall and insulation are especially susceptible to mold growth after a major water incident.  Wood framing, flooring, and furniture are also at risk of basement mold.  If you do not properly treat and remove mold from your home’s framing or flooring, you may face a serious and expensive problem later.  

Basements may flood from natural weather incidents or unexpected leaks, and carpeting is very difficult to properly dry.  When you’ve experienced a flood or other water-related incident, mold and mildew can grow even after you’ve drained and dried up all the water.

Mold may trigger minor allergic reactions, or pose a more severe threat to your family’s health and your home’s structural integrity.  The EPA recommends that if mold affects an area larger than 10 square feet, you should contact a professional. We can help you get rid of mold for good! Request a free in-home assessment on our website or give us a call.

Mold Removal & Biological Growth Prevention FAQs

What causes biological growth in basements and crawl spaces?

Excess moisture, warm temperatures, and organic surfaces. Local humidity and seasonal rains can exacerbate it.

What’s the long-term prevention plan?

Manage water (drainage/sump), isolate ground moisture (vapor barrier), seal pathways, and control humidity with a properly sized dehumidifier.

Do you “treat” existing growth?

We address moisture first, then follow appropriate surface cleaning/encapsulation steps. Your proposal outlines the safe, recommended approach.

How long does installation take?

Often 1–2 days, depending on space size and whether drainage or structural work is included.

Is it warrantied?

Moisture-control systems and equipment have clear warranty terms; we review coverage with your estimate.
Common signs include cracks in walls or floors, sticking doors or windows, and uneven floors. If you notice these issues, schedule a free inspection to identify the cause and recommended solution.
Most projects can be completed in a few days. The exact timeline depends on the severity of the issue and the type of repair. Our team will give you a clear timeline during your consultation.
Yes. We partner with leading financing providers so you can repair your home now and pay over time. Ask about our flexible payment plans during your free inspection.
We minimize disruption whenever possible. Many repairs are completed from the exterior, and our crews respect your property, leaving it clean once the job is finished.

Our Completed Projects in Decatur, IL

Take a look through our recently completed projects to see real foundation repair and basement waterproofing work. Each project shows how Acculevel approaches planning, installation, and respect for your home.

We addressed water intrusion issues where the wall meets the floor in a basement, particularly focusing on preventing further moisture entry. Our team implemented a waterproofing solution to safeguard the area. This job was completed in zip code 62521 for around $2,000, enhancing the basement's durability.

February 10, 2026

Near Decatur, IL

Addressed leaking issues in Danilo's basement at zip code 62526. Our team focused on waterproofing the area where the wall meets the floor, resolving water intrusion effectively. This essential repair ensures that the basement remains dry and prevents future leaks, coming at an approximate cost of $3,000.

February 10, 2026

Near Decatur, IL

Addressed crawlspace moisture issues for Laura in zip code 62526. The job involved sealing the crawlspace, ensuring no further water intrusion, and installing a dehumidifier to manage humidity levels. The humidity was recorded at 83% RH, indicating the necessity for prompt intervention. Additionally, a sump pump was installed to handle excess water and maintain a dry crawlspace environment. The estimated cost for this comprehensive waterproofing solution was approximately $14,500.

February 12, 2026

Near Decatur, IL

We recently addressed a significant issue for a homeowner in zip code 62521. The basement wall had developed a crack, allowing water and dirt intrusion, which threatened the area. Our team worked diligently to seal the crack and reinforce the wall, providing comprehensive waterproofing to prevent future issues. The project was completed for around $5,000, ensuring long-lasting protection for the homeowner.

February 11, 2026

Near Decatur, IL

Our team addressed water intrusion issues in Randall's basement, where water was suspected to be entering through a wall seam. We implemented waterproofing measures and mold remediation due to a previous mold issue. There's also potential for drainage improvements under the slab due to high radon levels. The estimated cost of the project is around $8,785, ensuring a dry and safe environment.

February 11, 2026

Near Decatur, IL

Addressed water intrusion issues in a finished basement by installing a perimeter drainage system to mitigate water coming up from the floor. Added a sump pump to efficiently redirect water away from the foundation. Enhanced exterior water flow with targeted gutter extensions. Estimated cost of the project is around $6900.

February 2, 2026

Near Decatur, IL

Completed a crucial repair job for Charlie in Decatur, 62526. The garage floor and foundation had significant cracking, reaching from the floor into the structure, and was detached from the main house. Our team worked meticulously to address these issues, ensuring structural integrity for the garage. This important repair was valued at around $14,900.

February 10, 2026

Near Decatur, IL

Get a Free On-Site Consultation & Estimate

Start with a Professional Inspection
We want to make your repair process simple and stress-free. When you fill out our contact form, a team member will reach out within 48 hours. We'll ask about your home’s symptoms and schedule an on-site inspection to assess your needs and walk you through next steps.
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I give consent for Acculevel, Inc. to collect my contact details and text or email me concerning this request and future company updates, appointment reminders, and customer service communications. Messaging frequency varies based on requested service. Message and data rates may apply.

I also agree to the Privacy Policy and Terms and Conditions. Text "STOP" to cancel at any time. Text "HELP" for customer assistance.
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Zip Codes Served
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Years in Business
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Acculevel Service Areas

Top-Rated Mold Removal Experts

Permanent solutions backed by warranties and the best customer service in the industry.

We’re your local Foundation Repair and Crawl Space Experts, servicing the entire state of Indiana, Kentucky, Illinois, Michigan, Ohio, Missouri, Wisconsin, and Iowa, as well as Western and Central Pennsylvania and Virginia, portions of West Virginia, southeastern Minnesota, eastern Nebraska, and northeast Arkansas.

For us, it’s not about a hard sell. It’s about finding the solution and stopping the problem at the source. We are committed to always telling you when you need a repair, and when it can wait.
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