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Mold Removal & Prevention, Naperville, 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 Naperville, 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 Naperville, 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.

Addressed a persistent water intrusion issue in John's basement (zip code 60540) with a comprehensive waterproofing and structure repair. The team focused on sealing the cracks in the basement floor to prevent water entry, ensuring the area remains dry and secure. This work provides peace of mind against future water damage, priced at approximately $5,700.

February 11, 2026

Near Naperville, IL

We've recently addressed significant foundation concerns within a basement area. This involved identifying and repairing visible cracks to prevent future water intrusion and ensure structural integrity. With approximate pricing around $3,270, these enhancements will significantly bolster the property's safety and durability.

February 2, 2026

Near Naperville, IL

Recently completed encapsulation in a crawlspace combined with essential crack repair on the walls. This project focused on addressing moisture problems and sealing the crawlspace effectively to maintain a dry environment. The crack repair ensures the structural integrity is maintained, providing peace of mind for the homeowner. The project was carried out in the 60540 area, with an approximate investment of $6,000.

February 11, 2026

Near Naperville, IL

Completed a spray foam insulation job in the crawlspace for Jeremy in zip code 60565. Ensured the space remains dry and energy-efficient, helping to improve overall home comfort. The project was done at an approximate cost of $2,000.

February 11, 2026

Near Naperville, IL

Addressed several structural issues for Jessica in zip code 60565. Cracks in the foundation, sticking doors and windows, and crown molding pulling away indicated the need for a comprehensive foundation repair. By reinforcing critical areas, we alleviated creaky floors and secured the main wall, ensuring enhanced stability for the home. This detailed work was an investment of approximately $23,500.

February 11, 2026

Near Naperville, IL

Addressed moisture presence in Bo's finished basement with a comprehensive waterproofing system. Our team ensured effective drainage installation to combat the existing water issue, keeping the area dry. The project was completed for about $3,000, providing long-term protection and peace of mind.

February 10, 2026

Near Naperville, IL

Addressed multiple issues in the Naperville crawlspace area, focusing on securing floor joists and beams. The team managed to treat and reduce biological growth and assessed potential mice entry points. This comprehensive structural and containment work was executed with an approximate cost of $2,500, ensuring enhanced stability and cleanliness.

February 11, 2026

Near Naperville, IL

In the 60563 area, we addressed a significant foundation issue for Dennis, focusing on gaps that compromised structural integrity. Our team effectively filled and stabilized these gaps, ensuring the foundation's longevity. The repair work required expert handling and was completed for approximately $8,500.

February 11, 2026

Near Naperville, 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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