352.796.0229
MoldEx & LumberKote2026-10-27T09:05:12-05:00

Crawl Space Mold Treatment & Wood Sealing in Tampa Bay, Orlando, Miami and Largo

Address existing mold and help protect crawl space wood from future growth with MoldEx and LumberKote from LRE Foundation Repair.

Why Mold Takes Hold in Tampa Bay, Orlando, Miami and Largo Crawl Spaces

Crawl space mold grows when moisture lingers around wood framing. Humid air, damp soil, leaks or water intrusion can raise moisture levels, setting up conditions where mold can develop on joists and subfloors. You may spot white or gray growth, musty odors or shifts in the floors above.

If it goes unaddressed, ongoing moisture can contribute to dry rot damage, weakened wood and sagging floors.

Symptoms

Signs You May Need Crawl Space Mold Treatment

Mold in a crawl space isn’t always obvious from inside your home. Some signs show up on the wood below, while others appear as odors or changes to the floors above. A professional inspection may be in order if you notice:

  • White, gray or dark growth on floor joists or subflooring
  • Lingering musty odors in the crawl space or living areas
  • Damp, stained or discolored wood
  • Condensation or elevated humidity below your home
  • Cupping or other changes in the floors above
  • Mold that comes back after cleaning

The MoldEx & LumberKote Solutions We Offer

  • Treats Mold on Crawl Space Framing

    MoldEx Mold Treatment

    MoldEx goes directly on affected floor joists, subflooring and other wood surfaces to treat existing mold growth and staining. The treatment reaches areas where growth is present, helping clean and restore the appearance of the wood. Once treated, crawl space framing looks cleaner and is ready for any additional moisture-control or protective measures the home may need.

    • Treats existing mold growth on crawl space wood
    • Goes directly on affected joists, beams and subflooring
    • Helps address mold before protective sealing or other crawl space improvements
    • Treats hard-to-reach wood surfaces throughout the crawl space
    • Helps remove visible mold as part of a broader moisture-control strategy

  • Protects Crawl Space Wood After Treatment

    LumberKote Framing & Subfloor Sealer

    LumberKote is a protective coating applied to crawl space floor joists, beams and subflooring. It forms a durable barrier over the wood to help protect treated or vulnerable surfaces against future moisture-related damage and mold growth. After application, the framing has a clean, uniform finish that adds a visible layer of protection throughout the treated area.

    • Helps shield wood from moisture, moisture-related damage and wood-destroying mold
    • Built on advanced polymer technology
    • Certified FEMA Flood Grade rated
    • Helps dry out and stabilize the lumber’s moisture content, even when moisture-related damage has already begun
    • Comes with a transferable, 30-year warranty
How It Works

What to Expect on Treatment Day

1

Treating and Protecting the Wood

Before treatment begins, your crew prepares the crawl space based on what was identified during your inspection and moisture readings. MoldEx is applied to affected wood surfaces and given time to work. If LumberKote is part of the recommended solution, it is then applied to the appropriate framing and subfloor surfaces to form a protective coating over the wood.

2

What Treatment Day Is Like for You

Most of the work happens below your home through the crawl space access, so disruption to your daily routine is usually minimal. Most treatments can be completed in about a day, although larger crawl spaces, heavier mold growth or additional repairs may require more time. In most cases, homeowners can stay in the home while the work is completed.

How to Keep Crawl Space Mold from Coming Back

Treating existing mold is only half the solution. If excess moisture remains in the crawl space, the conditions can again become favorable for new growth. That’s why LRE Foundation Repair looks for the source of the moisture, too, instead of focusing only on what’s visible on the wood.

Based on your crawl space, the solution can include controlling humidity, addressing water intrusion or sealing the space from outside air and ground moisture. Encapsulation and other crawl space repair solutions can help create a drier environment and reduce the conditions mold needs to grow.

Benefits

Crawl Space Mold Treatment You Can Trust in Tampa Bay, Orlando, Miami and Largo

Mold in your crawl space can have more than one cause, which is why treatment shouldn't be one-size-fits-all. LRE Foundation Repair inspects your crawl space for mold growth, wood condition, humidity, water intrusion and other conditions behind the problem.

We'll recommend the right approach for your home, whether that means MoldEx, LumberKote or additional moisture-control solutions. Schedule a free crawl space inspection in Tampa Bay, Orlando, Miami and Largo and get a written estimate for your recommended repairs.

What To Expect

Ready to get started?

Schedule a free estimate to start your repair journey with LRE.

Schedule your inspection

Fill out our form or give us a call to book your inspection. Share what you’ve noticed so we can send the right expert to your home.

Full home
inspection

An expert will inspect the problem area and surrounding conditions, including soil movement, drainage, structural integrity, and any related concerns.

Clear explanation
of findings

We’ll walk you through what we’re seeing in easy-to-understand language so you know the root cause of the issue, not just the symptoms.

Review recommendations

If repairs are needed, we’ll outline your options, pricing, and timeline so you can make the best decision for your home.

Schedule your free inspection—

It'll only take
a minute

Meet with a trusted expert, and get
clear answers about your home.

"*" indicates required fields

1Your Info
2Schedule Your Inspection
3Review & Submit

Customer Information

Don't just take our word for it

See what our customers have to say about our work.

When David from High Springs noticed the floors of his historic home starting to sag, he knew it was time to call LRE. 🏠 Our team at LRE Foundation Repair installed the SmartJack System — a durable, adjustable support solution designed to lift, level, and permanently stabilize crawl space floor joists.

Here’s why homeowners trust LRE’s SmartJack system: ✅ Galvanized steel supports that resist corrosion and won’t settle over time ✅ Restores uneven floors to their proper level ✅ Provides permanent stabilization for long-term protection Now, David’s home is stronger, safer, and ready to stand the test of time. Watch to see how LRE helped preserve the integrity of his historic home — and hear what David had to say about his experience!

David V. | High Springs, FL

Norbert’s driveway, walkway, and front porch in Gainesville, FL had settled over time, creating uneven surfaces and serious tripping hazards that had even caused previous injuries. After contacting LRE Foundation Repair, our team lifted and leveled the slabs with PolyLevel and sealed the cracks with NexusPro for long-lasting protection. Norbert was very pleased with the results and our team’s professionalism.

We’re grateful he shared his experience and helped other homeowners learn about reliable, long-term concrete repair solutions

Norbert M. | Gainesville, FL

When Toby bought his new home in Beverly Hills, Florida, he noticed water pooling along the side of his driveway and in front of his garage, caused by the slope directing water toward the house. Our team at LRE designed and installed a custom exterior drainage system to fix the problem for good. We added an enhanced channel drain in front of the garage, connected it to an underground drainage pipe, and tied in the home’s downspouts to safely redirect water away from the foundation.

Now, Toby’s property stays dry and protected — and he couldn’t be happier with the results!

Toby A. | Beverly Hills, FL

Scott and Carrie from Belleview were preparing to sell their home, but noticed that the cracks in their concrete pool deck were discouraging potential buyers. That’s when they reached out to us at LRE for help.

After our Customer Care team scheduled an appointment with one of our expert Design Specialists, we inspected the pool deck and developed a repair plan using our Two-Part Concrete Protection System — combining PolyLevel to lift and level the slabs, and NexusPro to seal the cracks and prevent future damage.

Scott and Carrie were thrilled with the transformation and the professionalism of our team — and they’re excited to share their wonderful experience! 🎥 Watch their story and see how LRE helped restore their pool deck and peace of mind!

Scott & Carrie D. | Belleview, FL

Christine and Scott in Leesburg, FL, noticed significant settlement inside and outside their home, with large cracks in their walls and tile flooring. Seeking a permanent solution, they turned to LRE Foundation Repair. Our team installed helical piers, interior slab piers, and PolyLevel to fully stabilize their home. Now, they have peace of mind knowing their home’s foundation is finally permanently secure.

Christine & Scott R. | Leesburg, FL

After noticing exterior wall cracks and doors that wouldn’t close properly, Mary knew her home needed help. Previous repairs had failed, leaving her without a lasting solution or a company to stand behind the work. In this testimonial, Mary shares how LRE Foundation Repair permanently stabilized her home and restored her peace of mind with proven solutions, lifetime transferable warranties, and double-backed warranty protection.

Mary Anne S. | Brooksville, FL

When Frank in Spring Hill, FL, noticed cracks in his walls, he turned to LRE Foundation Repair. Our Design Specialist confirmed foundation settlement and designed a plan using helical piers and a new exterior drainage system to stabilize the home and redirect water. With the repairs complete, Frank was thrilled with the results. Watch the video to see how LRE restored his home and peace of mind.

Frank N. | Spring Hill, FL

Patrick from New Port Richey noticed water entering through his home’s slab foundation during last year’s hurricanes and contacted LRE Foundation Repair for help. Our team installed a custom exterior drainage system, including a French drain to collect and redirect rainwater to a relief drain away from the home. We also connected his downspouts directly into the subsurface system to stop water from pooling near the foundation. The result? A dry, protected home — and one very happy homeowner.

🙌 Watch as Patrick shares his experience and see how LRE Foundation Repair helped protect his home from future flooding! 🌧️🏠

Patrick G. | New Port Richey, FL

When Terry purchased his new home in Tarpon Springs, his home inspector discovered a serious issue — the floor joists were being supported by makeshift car jacks! 😬 Looking for a long-term solution, Terry reached out to LRE Foundation Repair. Our team installed the SmartJack® System, providing strong, durable, and permanent support for the home’s floors.

Terry was so impressed with the results that he shared his incredible experience with us! 🙌 🎥 Watch his story to see how we helped restore lasting stability and peace of mind.

Terry C. | Tarpon Springs, FL

When Carin and Jon from Tampa, Florida, noticed buckling in the wood floors of their 1950s historic home, they suspected something was wrong beneath the surface. That’s when they called us at LRE Foundation Repair for a complimentary crawl space inspection. In this customer testimonial, hear directly from Carin and Jon as they share their experience—from the first inspection to the final results. Our expert Design Specialist identified major moisture issues in their crawl space, and our team got to work installing the CleanSpace™ Crawl Space Encapsulation System to create a dry, healthy environment under their home. Watch their story to see how we helped protect their home for years to come!

Carin & Jon B. | Tampa, FL

Before & after photos

Check out before and after photos from some of our completed projects.

  • Concrete driveway repair in San Antonio, FL

    The LRE team utilized our PolyLevel Solution to not only bring the concrete slabs back to an even, safe level but also fill the void underneath and permanently stabilize the driveway.

  • Channel drain solution in Seminole, FL

    The LRE team installed a 4″ channel drain within the pool deck’s concrete to collect rainwater and divert it away from the home through a subsurface drainage system.

  • Crawl space repair in Dunedin, FL

    To repair sagging floor issues, LRE used SmartJacks, made from galvanized steel, and our Crawlspace Encapsulation System to control moisture, air flow, and stabilize the structure.

View All Before & Afters

Proudly Serving Florida

LRE Foundation Repair is the local expert for Foundation repair and concrete repair and more. We proudly service Orlando and all of Florida.

Frequently Asked Questions

Can I just spray the mold on my floor joists myself? 2026-10-05T11:29:52-05:00

Spraying visible mold may clean up the surface, but it may not address growth elsewhere or the moisture problem causing it. Certain household cleaners can also discolor or damage wood without providing lasting protection. A crawl space professional can determine how widespread the problem is, treat affected surfaces and pinpoint what needs to change to help keep the mold from coming back. 

How much does crawl space mold treatment cost in Tampa Bay, Orlando, Miami and Largo?2026-10-05T11:29:06-05:00

Crawl space mold treatment costs vary based on the size of the crawl space, how much wood is affected, the treatment required and whether moisture or structural problems also need to be addressed. Because every crawl space is different, an inspection is the only reliable way to determine the scope of work. LRE Foundation Repair provides free inspections and written estimates for homeowners in Tampa Bay, Orlando, Miami and Largo.

Does LumberKote prevent mold from coming back?2026-10-05T11:28:18-05:00

LumberKote helps protect the crawl space wood, but lasting protection also depends on controlling the moisture behind the mold or wood damage in the first place. When a crawl space has high humidity, water intrusion or other moisture problems, LRE Foundation Repair may recommend additional solutions to keep the space drier and help protect the framing long term. 

How long does MoldEx and LumberKote treatment take?2026-10-05T11:27:34-05:00

How long treatment takes depends on the size of the crawl space, how much wood is affected and whether other repairs or moisture-control measures are needed. MoldEx and LumberKote are often part of a larger crawl space repair project, so the overall timeline varies from home to home. LRE Foundation Repair will explain the recommended treatment and expected installation timeline after inspecting your crawl space. 

Do I need mold treatment before crawl space encapsulation?2026-10-05T11:26:40-05:00

When active mold is present, it should typically be addressed before the crawl space is encapsulated. Encapsulation helps control the moisture conditions that allow mold to grow, but it doesn’t remove existing growth from joists or subflooring. LRE Foundation Repair can assess both the mold and its moisture source to decide whether treatment, encapsulation or a combination of solutions is appropriate.

Is mold in a crawl space dangerous to my family?2026-10-05T11:25:38-05:00

Mold in a crawl space shouldn’t be ignored. Mold spores and musty odors can travel with air from the crawl space into the living areas above, potentially impacting indoor air quality. The level of concern depends on the type and extent of growth and individual sensitivities. A professional inspection can gauge the extent of visible growth and, just as importantly, the moisture conditions letting it develop. 

Related pages

Service Areas

LRE Foundation Repair proudly serves Orlando and all of Florida.

Resources

Access valuable resources to help keep your home healthy and your family safe.

The LRE Promise

At LRE, we pride ourselves on providing permanent solutions, and stand behind our work with industry-leading, fully transferable warranties and guarantees.

Schedule your free inspection today

Don’t let unanswered questions about your
home worry you any longer.
Go to Top