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Case Study: Crawl Space Encapsulation for a Healthier Home in Florida

Damaged wooden floor joists and debris in a crawl space with exposed pipes and dirt ground.

When high humidity and fungal growth began impacting their newborn’s room, a Florida family had no choice but to temporarily move out of their home. Concerned for their child’s health and desperate for a safe solution, they turned to Alpha Foundations. The team installed a full “power five” encapsulation system to reduce humidity, control moisture, and eliminate fungal growth.


The Challenge

  • High humidity levels inside the crawl space
  • Fungal growth affecting indoor air quality and the newborn’s room
  • Family forced to vacate the home for health and safety

The Solution

  • 1,500 sq. ft. CrawlSeal™ vapor barrier and drainage matting
  • Dehumidifier, sump pump, and a custom crawl space door
  • Full “power five” encapsulation system for moisture control

The Impact

  • Indoor humidity reduced to a stable 55%
  • Fungal growth eliminated and air quality restored
  • Family safely returned to a healthier living environment

Before Crawl Space Encapsulation:

Dimly lit crawlspace with debris, exposed pipes, and wooden beams under a building structure.

Serious Health Concern

The homeowner noticed worsening humidity and mold issues in their crawl space, which directly impacted the air quality inside their living space. The problem became especially urgent when it began affecting their newborn’s room.

Close-up of a wood foundation with cracks and loose debris on the ground nearby.

Forced to Leave Home

With their child’s health at risk, the family made the difficult decision to temporarily relocate while they searched for a solution. They needed a system that would permanently address both moisture and air quality concerns.

After Crawl Space Encapsulation:

Crawl space with plastic vapor barrier on the floor and insulated air ducts above.

Installing the Power Five System

To fully encapsulate and protect the crawl space, Alpha Foundations installed their “power five” system. This included 1,500 sq. ft. of CrawlSeal™ vapor barrier, drainage matting, a sump pump, dehumidifier, and a custom crawl space door—designed to create a sealed and conditioned environment.

Crew installing Dehumidifier in crawlspace.

Humidity Brought Under Control

The new system brought crawl space humidity down to a consistent 55%, successfully halting fungal growth and creating a healthy, dry space beneath the home. The improvements directly impacted the indoor air quality in the rooms above, allowing the family to return home safely.

Other Reviews for Our Crawl Space Encapsulation Near You

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After years of searching for a replacement for the decaying wood/dirt retaining wall of a 40ft slab that was added in my backyard by the…

After years of searching for a replacement for the decaying wood/dirt retaining wall of a 40ft slab that was added in my backyard by the previous owners, I found Alpha. Ashton, who gave me the quote, was the first professional who actually knew what he was talking about, and it was a no brainer to sign with them on the spot as I could finally get rid of that huge and ugly decaying ´planter’. Josh, David and Anthony, who did the work, are all exceptional young professionals, knowledgeable, hardworking, respectful of my property, and fun to have around! It took the crew one full Florida high sun / high humidity day and a morning to reinforce the 2ft deep foundations into a 20 ft deep system and now that slab is going nowhere! They cleaned up after themselves and left the place ready for my new backyard improvements! I’m mega happy with their work and recommend them and the company even in preventative situations like mine. Money well spent! All Floridians should have this system under their house!

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Tyler, Ryan, and Giovanni did a great job! Quick, and great communication. Thanks!

Tyler, Ryan, and Giovanni did a great job! Quick, and great communication. Thanks!

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Bradley was real polite, and is very knowledgeable.I believe he's an asset to your company- sam

Bradley was real polite, and is very knowledgeable.I believe he's an asset to your company- sam

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Excellent, prompt , professional service. Would definitely use them again. They were also recommended by the county inspector. .

Excellent, prompt , professional service. Would definitely use them again. They were also recommended by the county inspector. .

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Kevin and Cody were outstanding. Very professional and did an amazing job from explaining the process to completion.

Kevin and Cody were outstanding. Very professional and did an amazing job from explaining the process to completion.

Need Crawl Space Encapsulation for Your Home?

Crew installing crawl space encapsualation

If crawl space humidity or mold is affecting your home’s air quality, it could be putting your family’s health at risk. That was the case for this Florida family until Alpha Foundations stepped in with a complete encapsulation system to solve the problem at its source. If you’re seeing signs of moisture, musty odors, or fungal growth, we’re here to help you create a cleaner, healthier, and safer home from the ground up. Contact us today!

Related Resources

Crawl Space Encapsulation FAQs

Yes. High temperatures and poor ventilation can trap heat and humidity in your crawl space, leading to mold, wood rot, and higher indoor humidity levels. Sealing and insulating your crawl space helps keep both heat and moisture under control.

Proper sealing and insulation reduce energy loss, keeping your home’s temperature stable and lowering heating and cooling costs.

It depends on the cause and your policy. Mold from sudden, accidental water damage is often covered, but long-term moisture issues typically aren’t. Check with your provider to be sure.