Crawl Space Encapsulation and dehumidifier installed in a customer's home

HumidiGuard™ Dehumidifier and Air Filtration System

The HumidiGuard™ dehumidifier and air filtration system helps maintain a dry, healthy home by removing excess moisture and improving air quality. Learn how this system prevents mold growth, musty odors, and improves your indoor environment year-round.

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  • Lifetime Warranty

  • Money-Back Guarantee

  • Fair & Honest Pricing

  • Licensed & Insured

Overview

Our Dehumidifier and Filtration System Keeps Your Home Dry, Healthy, and Comfortable

Not just better air, it’s healthier, safer, and built for every season.

When you think of a basement or crawl space, “air quality” might not be the first thing that comes to mind, but it should be. Humidity, stale air, and invisible contaminants can seep into your living space, affecting everything you touch, breathe, and stand on. The HumidiGuard™ Dehumidifier & Air Filtration System is your home’s defense, not just a machine, but a shield for your family’s comfort and health.

A dehumidifier hung in a crawl space
  • Lifetime Warranty

  • Money-Back Guarantee

  • Product Replacement for Life

  • Lifetime TotalCare™ Maintenance

  • Fair & Honest Pricing

  • Experience You Can Trust

  • 100% Financing available

  • Licensed, bonded, and insured

  • No Sales Games

  • Industry-leading warranties and guarantees

  • Recommended by Your Neighbors

  • A+ BBB Rating

  • Lifetime Warranty

  • Money-Back Guarantee

  • Product Replacement for Life

  • Lifetime TotalCare™ Maintenance

  • Fair & Honest Pricing

  • Experience You Can Trust

  • 100% Financing available

  • Licensed, bonded, and insured

  • No Sales Games

  • Industry-leading warranties and guarantees

  • Recommended by Your Neighbors

  • A+ BBB Rating

What Makes HumidiGuard Different

What Makes the HumidiGuard™ Different and Why It Matters

Most dehumidifiers are built for one job: pull moisture from the air. But the HumidiGuard™ is engineered for so much more. It’s not a store-bought appliance; it’s a professionally installed system built for basements, crawl spaces, and the unique demands of your home’s foundation.

  • It doesn’t just dry the air; it protects your health and your structure.
    By reducing high humidity at the source with the Smart dew-point control for automatic climate adaptation, HumidiGuard helps stop wood rot, mold growth, and the warping or softening of structural framing. It’s a foundational tool for keeping the space beneath your home dry and stable year-round.
  • It filters the air while it works.
    With a built-in MERV-8 foam-core filter, the HumidiGuard traps airborne particles like dust, pollen, and common mold spores. These are the same irritants that often rise from crawl spaces and basements into your living space. While it’s not a whole-home air purifier, this added layer of filtration supports cleaner, healthier air where it matters most.
  • It’s Energy Star certified for high-efficiency performance.
    The HumidiGuard is rated among Energy Star’s Most Efficient, delivering powerful dehumidification without driving up your utility bills. It’s ideal for homeowners who want strong results and long-term savings.
  • It’s fully self-draining, no trays, no tanks, no mess.
    This system connects directly to your drainage line or sump basin, removing 16.25 gallons of moisture per day without any manual dumping or maintenance from you. It’s hands-off by design.
  • It’s built to last, with durability you can see.
    The HumidiGuard is constructed from commercial-grade components, designed for year-round performance in tough basement and crawl space environments. Unlike retail units that fail under pressure, this system is meant to run for the long haul, quietly, reliably, and with minimal upkeep. And because it’s installed by a Certified Foundation Specialist, you know it’s set up to perform exactly as it should.
Why Humidity Matters

Why Humidity Matters: Your Home, Reimagined

An unsealed, humid crawl space doesn’t stay silent. It can whisper through your floors, carrying odors, raising allergy triggers, and making your home feel muggy. It’s not just “below you,” it’s affecting you. With the HumidiGuard in place, the air stays clean, humidity stays neutral, and your home stays comfortable, year-round.

Why Trust SouthernDry

Why Alabama Homeowners Choose SouthernDry

When you’re dealing with moisture, you need a solution that’s built to last. Our team of certified specialists will assess your home’s needs and provide a custom-designed system for long-term protection.

  • Expert Solutions: We diagnose the root cause of your moisture problem and provide a complete solution, which may include drainage systems, sump pumps, and the HumidiGuard dehumidifier.
  • Professional Installation: Our teams are highly trained to ensure your system is installed correctly for maximum efficiency and longevity.
  • Guaranteed Protection: We stand behind our work with a strong warranty, giving you peace of mind that your home is protected.

If you’re ready to reclaim your basement or crawl space from moisture and mold, contact us today for a free inspection and a no-pressure estimate.

Happy customer posing in front of their home after foundation repair and waterproofing services
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Ready for a Breath of Fresh Indoor Air?

Don’t treat bad air as a basement problem; treat it as a home problem. With HumidiGuard, you’re investing in healthier air, better structure, and long-term confidence.

Contact us today for your free inspection. Let’s clear the air, from the ground up.

Contents

Fair & Honest Pricing

No Sales Tactics

We believe in real, honest, 100% transparent pricing. Not “price matching” gimmicks and marketing tricks like some companies.

  • No gimmicks

  • No pushy tactics

  • Priced with integrity

  • Built on honesty

It was an outstanding experience. The crew performed the work quickly and correctly and the price beat everyone else.

Had my house encapsulated, from the start with the sales representative to the end with the maintenance crew, it was an outstanding experience. The crew performed the work quickly and correctly and the price beat everyone else.

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Their prices were better and the results are excellent. Recommend them highly.

We had our crawlspace encapsulated and Southerndry did an excellent job. Everyone we dealt with was friendly, professional, and very competent. Their prices were better than almost all other estimates we received and the results are excellent. Recommend them highly.

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Southern Dry was not the cheapest but no where near the most expensive.

My crawlspace was wet, moldy, and just nasty. The insulation was soaking wet and it smelled awful. I called five different companies to come out and give me quotes on what they thought needed to be done. I had quotes all over the board ranging from $7,000 all the way up to $48,000. Southern dry…

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Certified Foundation Specialist smiling while reviewing an estimate

SouthernDry Financing Solutions

Easy Financing Options for Affordable Payments

Most homeowners don’t expect to deal with water in the basement or cracks in the foundation. But when these problems show up, delaying repairs can make the damage worse—and more expensive.

  • Simple Process

  • Fast Approvals

  • Multiple Financing Options

  • Today’s Best Rates

Crawl space encapsulation specialist working on a vapor barrier installation

Keep your system working at maximum capacity

Stay Protected With Our
Annual Maintenance Plan

When you had your waterproofing solution installed, you made a very important decision to protect your property. Just as your automobile needs maintenance and monitoring, so does every waterproofing system.

The group you sent to do the work at my house were so nice! Your installation people are what make the difference!!

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Had my house encapsulated, from the start with the sales representative to the end with the maintenance crew, it was an outstanding experience. The crew performed the work quickly and correctly and the price beat everyone else.

View Review

We had our crawlspace encapsulated and Southerndry did an excellent job. Everyone we dealt with was friendly, professional, and very competent. Their prices were better than almost all other estimates we received and the results are excellent. Recommend them highly.

View Review

My crawlspace was wet, moldy, and just nasty. The insulation was soaking wet and it smelled awful. I called five different companies to come out and give me quotes on what they thought needed to be done. I had quotes all over the board ranging from $7,000 all the way up to $48,000. Southern dry…

View Review

Wow!! I called less than a week ago with a major moisture/mold problem under our house that we discovered. They had someone out within a few days. And not even a week after my initial phone call, they had 2 crews out working on our home. Allen- Crew 4 & Chochi- Crew 3. They had…

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Jake was Awesome! He communicated well, was on time, respected my property and was very professional. He explained everything well and even showed me pictures of my crawl space so I could see existing issues. I appreciated this because most could tell me anything and I would never know if they were just trying to…

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  • Google logo
    400+

    5-Star Reviews

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  • Angi logo
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  • Better Business Bureau Accredited Business logo
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    5-Star Reviews

600+ 5-Star Reviews