Licensed & Insured. Crawl space Encapsulation and Mold Remediation

Is it Worth Putting a Dehumidifier in a Crawl Space


Have you wandered into your crawl space only to be hit by that damp, musty smell? We know moisture is the villain here, but how do you slay a foe you can’t see? Think about it: Is it Worth Putting a Dehumidifier in a Crawl Space?

Picture this: Your crawl space transformed from a damp space into a dry haven with just one move. By pulling water out of thin air, literally, a dehumidifier works its magic quietly yet powerfully.

But wait—is it worth putting a dehumidifier in a crawl space as an investment? Stick around and find out how these could save not just your floorboards but also shield your health from unseen threats.

Concerned about your crawlspace? Let Nashville’s best assess it! Call us now!

Table Of Contents:

Understanding Crawl Space Dehumidification

Think of your crawl space like a sponge; it loves to soak up moisture, but unlike a quick-dry towel, it doesn’t let go quickly. This trapped moisture can cause bigger problems—rot, mold, structural damage, and an all-access pass for pests. That’s where dehumidifiers strut onto the stage.

A dehumidifier works by pulling in damp air, stripping away the moisture, and sending drier air back out on parole. It’s not just about comfort; it’s about protecting your home from unseen enemies that thrive in wet environments.

Selecting the Right Dehumidifier for Your Crawl Space

Finding the right dehumidifier is crucial here because size does matter. You wouldn’t bring a knife to a gunfight, nor should you bring an undersized dehumidifier into cavernous crawl spaces thirsty for dryness.

You need one robust enough to handle high-humidity days without breaking a sweat—or overworking itself. Factor in energy efficiency too, since this device will likely run longer during dehumidifier sessions.

Installation Best Practices for Crawl Space Dehumidifiers

Laying down groundwork properly sets you up for success later on—that goes double when installing these gadgets beneath your abode.

  1. Analyze airflow patterns: Place them where moist air enters or gathers.
  2. Elevate equipment: Keep units off direct ground contact. 
  3. Say yes to insulation: Insulated ducts ensure every ounce of effort put forth by our mechanical heroes doesn’t vanish. 

Key Takeaway: 

To keep the bad guys at bay, pick a dehumidifier that can handle the heavy lifting on damp days without guzzling energy. Install it where it counts—elevated, insulated, and right where moist air marches in.

The Importance of Crawl Space Humidity Control

Maintaining low humidity levels under your house isn’t just a fancy upgrade. Ignore it and things could grind to a halt—or rot. High humidity is basically party central for mold spores looking to settle down and multiply which leads directly into poor air quality upstairs.

We’re talking health risks here because when you breathe that compromised air inside, so do your lungs—and they aren’t fans of impurities or allergens that come with living fungi. Keeping humidity on lockdown means keeping those pesky intruders at bay while ensuring structural integrity stays solid.

Why Fight the Moisture Menace?

Fighting off this unseen villain starts with controlling humidity levels—a job fit for dehumidifiers designed specifically for such spaces. By pulling water from the air, these devices keep conditions drier and discourage unwanted houseguests (of the fungal variety).

Besides being unsightly and smelly, molds are also masters of destruction—they don’t discriminate against what they feast upon: insulation batting becomes their buffet table while electrical wiring offers quite the shocking dessert.

Safeguarding Your Fortress from Below

To defend your castle from below-ground threats involves more than sticking a machine in there and calling it quits. You’ve got to consider things like capacity relative to space size or whether energy efficiency ranks high on your priority list because running one non-stop shouldn’t cost you heavily. 

Note: Keeping crawlspace humidity low isn’t just nice; it’s necessary—to prevent turning supports into mushy messes or making indoor allergies worse by inhaling whatever decides to grow down there without permission.


Key Takeaway: 

Think of your crawl space as a moisture magnet where mold and rot throw a house-wrecking party. High humidity invites these troublemakers, so keeping the area dry with a dehumidifier is crucial for protecting your home’s structure and air quality.

Signs Your Crawl Space Needs a Dehumidifier

Think your crawl space might be having excess moisture? It’s time to catch those sneaky signs before they turn into big, damp problems. Here’s the scoop on when it’s high time for a dehumidifier down under.


Musty Odors

If you get a whiff of something that smells like old books mixed with wet socks every time you’re near the crawl space, listen up—that smelling musty odors is more than just unpleasant; it’s an SOS signal from your home. 

This smell often indicates that humidity levels are higher than a rainforest café in there, which can invite mold growth. A dehumidifier could be the breath of fresh air your crawl space desperately needs.


Visible Mold

Catch sight of fuzzy or slimy patches creeping around corners or across surfaces? That’s mold making itself at home where it shouldn’t. Besides being unsightly, these spores can cause health issues and damage to wooden structures over time. A dehumidifier might just save the day (and your walls).

Need a professional help? Contact us for a crawlspace mold removal

Pest Infestations

Last but not least, if you’ve got critters in your crawl space—it’s probably because they love that moist environment. Insects such as termites thrive in damp conditions and can quickly become unwanted tenants. Squashing this bug bash starts with drying out their party zone using a trusty dehumidifier.

Detecting these telltale signals early means saving yourself from future headaches. So, keep an eye—and nose—out for them because when things start getting funky down below, remember: A little prevention now could mean avoiding full-on renovation later.


Key Takeaway: 

Sniff out musty odors, spot mold intrusions, and watch for bug infestations—these are your crawl space’s cries for help. Getting a dehumidifier can stop the damage party before it turns into an expensive house renovation rave.

Cost-Benefit Analysis of Crawl Space Dehumidification

Crrawling into a damp, musty space under your house doesn’t exactly scream ‘fun times.’ That same crawlspace could be secretly chipping away at your home’s health and your wallet. Let’s cut through the cost and lay out what you’re really getting into when you decide to dry up the underworld of your abode.

The Upfront Costs

Purchasing a dehumidifier might feel unnecessary—but there’s more happening behind the scenes. These machines are an upfront investment, swooping in to protect against future repair costs from moisture damage. Sure, they can range from a couple of hundred bucks to even more, but think long-term.

Energy Use and Your Bill

No sugarcoating it—a dehumidifier sips electricity like it’s going out of style. Yet modern units come with energy-efficient features that soften the blow. We’re talking Energy Star ratings that help keep utility bills lower than an alligator’s belly in a wagon rut.

Dodging Damage Costs with Dry Air

Mold remediation services can cost heavily—and let me tell you, mold loves nothing more than setting up where humidity reigns supreme. By keeping things drier down there, you’re essentially telling mold spores to take their business elsewhere—which is anywhere but your house. 

This alone could save thousands because fixing rot and structural mayhem isn’t cheap. The EPA agrees prevention beats cure every time.

Breathing Easier Above Ground Level

Last on our list—but definitely not least—is something priceless: Your health and well-being are worth every penny invested below ground level because cleaner air upstairs starts with tackling dampness downstairs.

 Better indoor air quality reduces allergy symptoms and respiratory issues—it’s as if each breath comes with its own little thank-you note for taking care of business beneath those floorboards.


Key Takeaway: 

Slapping a dehumidifier in your crawl space is like hiring a guard for your home’s health and wallet. You’ll pay upfront, but the savings on repair costs and energy bills—not to mention the health perks—can make it a smart move.

Maintenance Tips for Crawl Space Dehumidifiers

Keeping your crawl space dehumidifier in tip-top shape isn’t rocket science, but it sure can feel like a mystery without the right pointers. So, let’s shed some light on this hidden hero of humidity control with practical maintenance tips.

Clean or Replace Filters Regularly

The filter is crucial against dust and dirt to keep your dehumidifier breathing easily. But even these need a break—or at least a good cleaning. Most models require a filter check every six months, if you’ve got pets or dusty conditions, make that more often. 

When the filters look worse for wear, swap them out; think of it as giving your machine new lungs. A clean filter means efficiency and longevity for your device.

Inspect Coils and Components Seasonally

As seasons change, so should your approach to maintaining those intricate coils inside the dehumidifier. Frost build-up during colder times can turn those coils into miniature ice rinks—fun for microscopic skaters but bad news for moisture removal. Make sure they’re clear with regular inspections.

Troubleshoot Like a Pro

Hearing strange noises? Feeling less airflow? Sometimes, things go bump (or whirr) in the night—and day—in our trusty devices. 

Before calling professional help, do some detective work: Check power sources. Ensure there are no blockages causing from within, and glance over instruction manuals because sometimes we all forget step one.

Remembering these simple steps will not only save you time and money but also extend the precious lifespan of your crawl space guardian.


Key Takeaway: 

Maintain your crawl space dehumidifier by cleaning filters every six months, inspecting coils seasonally, and troubleshooting odd noises or airflow issues yourself to save time and money.


Alternatives to Crawl Space Dehumidifiers

Sure, a dehumidifier can suck the moisture out of your crawl space like a shop vac on a spilled soda. What if I said there’s a better way to make that subterranean area of your abode drier? Let’s talk about some other tricks up our sleeve.

Vapor Barriers: Your Crawlspace’s Invisible Shield

Laying down a crawl space vapor barrier is like giving your crawl space an invisible cloak against moisture. This plastic or foil sheeting seals off the earth from your home, keeping humidity at bay and making sure water vapor doesn’t invite itself in for tea and mold spores.

It’s not just about slapping it down though; you’ve got to seal it tightly in piers and pipes—because if you don’t, well, let’s just say those pesky moisture molecules are sneakier than midnight snack cravings.


In need of professional Vapor Barrier Installation? Contact us at Crawlspace Makeovers. 

Better Ventilation: A Breath of Fresh Air Down Under

If your crawl space has vents, they might be working hard. But sometimes they need help—from fans. Installing ventilation fans helps circulate air and keeps everything inside feeling fresher than peppermint gum while kicking excess humidity to the curb.

A word of caution, though—if you live where it gets hotter during summer months, these same vents could bring in moist air instead. So, consider this move carefully; local climate calls the shots here.

Drainage Solutions: The Great Escape for Water

We’re talking French drains or sump pumps—dealing with unwanted water in your crawlspace. These systems collect rogue rainwater or groundwater before sending them packing through discharge lines far away from foundation walls—a true moment for wetness woes.

Picking between these options is kind of like choosing toppings on pizza—it depends on what problems you’re facing down below.


Key Takeaway: 

Think beyond the dehumidifier for a dry crawl space. Use vapor barriers to block moisture, improve ventilation with fans, and install drainage systems like French drains or sump pumps. It’s all about sealing out dampness and giving water to the boot.

FAQs in Relation to Is it Worth Putting a Dehumidifier in a Crawl Space

Should I put a dehumidifier in my crawlspace?

Yes, if you’ve got moisture issues down there. It keeps things dry and fends off mold, wood rot, and pests.

Do crawl space dehumidifiers use a lot of electricity?

They can be energy hogs, but picking an ENERGY STAR rated model cuts the power drain significantly.

Where is the best place to put a dehumidifier in a crawl space?

Near the center works best for even distribution. Make sure it’s accessible for maintenance checks too.

Should a crawl space be completely dry?

Ideal humidity levels are key; aim for 30-50% to prevent damage without over-drying your crawl space.

Dry Solutions: Dehumidifying Your Crawl Space

So, is it worth putting a dehumidifier in a crawl space? Absolutely. A dry crawl space means a sturdy home foundation and fresh indoor air, no more musty smells or mold battles.

Dive in, choose the right dehumidifier, and install it properly. Your house will thank you with longevity and comfort.

Maintain it well; your health—and wallet—will feel the difference. And if a dehumidifier isn’t your style, remember: alternatives await to keep that moisture at bay.

To sum up, Act on those damp cues beneath your feet. With this knowledge in hand, create your dry sanctuary below deck.

From humble beginnings to serving the entire Nashville Metro Area, we’re committed to ensuring every home reaches the “Next Level.” Don’t compromise on quality; experience the difference with Crawlspace Makeovers.

Ready to revolutionize your crawlspace? Contact us and let’s elevate your home together!

Picture of Greg Lewis

Greg Lewis

Greg Lewis is the founder and CEO of Tier Restoration, a company dedicated to restoring the indoor environment of homes and businesses experiencing water damage, smoke damage, or mold contamination.

Greg has spent most of his life working in this industry in Nashville, Tennessee, in the 1970s, working in his father’s commercial cleaning business, in the 1980s and 1990s as a partner with his father in the Sears Carpet and Duct Cleaning franchise, then on his own since 2000.

Greg played his trumpet at Overton High School and the University of Tennessee, Chattanooga, and you can still find him playing throughout the Greater Nashville, Tennessee area.