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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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I had my Seawall, raised, and pool concrete raised around the pool and Josh and Tori did an excellent job from the time they got here with…

I had my Seawall, raised, and pool concrete raised around the pool and Josh and Tori did an excellent job from the time they got here with the professionalism and by the time they left with cleanup excellent job thank you guys

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Ben, Nick, and Chris did an excellent job of replacing storm damaged envelop wall. Very professional. Thank you!

Ben, Nick, and Chris did an excellent job of replacing storm damaged envelop wall. Very professional. Thank you!

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I was very pleased with the quality of work Felipe, Miguel, and Ben completed at my home. I had some sagging floor joists and major rotten…

I was very pleased with the quality of work Felipe, Miguel, and Ben completed at my home. I had some sagging floor joists and major rotten wood under my bathroom floor. They arrived on time and started work right away tearing out the bathroom floor and tub. Using that as an access point they repaired the sagging joists and beams under the house. As they were working, I walked through the house and noticed stability had been restored under the floors. They completed the repair by sistering the joists under the bathroom floor and replaced the subfloor. They worked so hard and were so polite the entire time they were here and took the time to answer my questions during the process. I can’t thank you enough for restoring my house and my peace of mind! You guys are amazing! Thank you!

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Sam was terrific with his communications and setting expectations. The work looks terrific.

Sam was terrific with his communications and setting expectations. The work looks terrific.

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Ryan’s and Ethan were great at communicating what they were seeing, what they were doing, leveling out the house, and efficient in their…

Ryan’s and Ethan were great at communicating what they were seeing, what they were doing, leveling out the house, and efficient in their work with my home. Highly recommend Alpha Foundations! Great from first quote to finish!

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.