Skip to main content

«  View All Posts

Crawl Space Problems: The Hidden Cost of Extra Humidity

October 31st, 2025

5 min read

By Jorge Cardenas

A calculator and a notebook with money in a table

Have you ever thought about what's underneath your feet? If you are a homeowner in Arkansas, the answer is most likely a crawl space. Sadly, most people don't really think about this important part of their home. After all, it's dark, dirty, a little damp, and maybe even hides some spiders and some creepy crawlers.

But what if we told you that ignoring your crawl space could be one of the most expensive financial mistakes you make as a homeowner?

You may have heard of crawl space encapsulation and thought of it as a big, expensive home improvement project. And while this type of work incurs a cost, it is an investment you will appreciate for years to come.

Let's think about it differently. For starters, let's talk about the ongoing, hidden costs of not dealing with a humid crawl space that's open to the elements.

This isn't just a minor problem. It's a constant drain on your wallet that affects your energy bills, your home's structural integrity, and even your family's health. In this article, we will break down the actual cost of neglect and calculate the real financial impact.

1. The "Stack Effect" Inflating Your Energy Bills

We have discussed this topic at length in another article, so here is a brief refresher. This physical effect refers to the natural movement of air driven by temperature differences, with warm air rising and cold air sinking. This creates continuous air circulation: warm air escapes through the top and pulls in cold air from the bottom, particularly from the crawl space.

And here is how this affects your energy bill. The cold air and moisture are pulled from your crawl space, causing inconsistent temperatures in your living areas. This makes your HVAC system work overtime to keep things comfortable, elevating your energy bill.

According to the U.S. Environmental Protection Agency (EPA), one of the key tips for energy efficiency (apart from using energy-efficient products and equipment) includes insulating the house. And professional crawl space encapsulation can help you with this step.

By sealing all vents and air leaks in the crawl space, installing a vapor barrier, and installing a dehumidifier, you can save on your utility bills every month. When you have control over the moisture in your crawl space, you also control your energy use.

2. Moisture and Rot: The Ticking Time Bomb

As an Arkansan, you are familiar with humidity and all its visible consequences. From rust to mold, the side effects of our always-damp weather are apparent. But what about what you can't see… like in your crawl space?

You see, moisture doesn't just sit there. It gets into the wood that supports your home. Either your floor joists, your support beams, or even the sill plate can absorb moisture, especially from a crawl space.

The more hidden it is, the easier it is for rot to start. If one day you notice soft, bouncy floors or sagging areas in your home, it might already be too late. At that point, you are no longer dealing with a small issue; you may be facing a major structural repair.

Replacing or repairing rotten joists can easily cost thousands of dollars, if not more. And depending on how long it has been and what steps you have taken to prevent this damage, it might not be covered by your insurance.

By managing humidity early through crawl space encapsulation, you can protect your home's foundation from the very start.

3. How Moisture Impacts Your Property's Value

Unless you will inherit your rich uncle's secret fortune, chances are your home is your most important financial asset. So, when it comes time to sell your home, you'd better be prepared for the buyer's inspector to look around every nook and cranny of your home.

This is why your crawl space may play a bigger role than you might initially think. A home inspector will crawl under your home looking for warning signs:

  • Standing water
  • Mold or mildew
  • Rotting wood
  • Falling insulation

Should any of these be found, that means trouble for your plans. Depending on the situation, they may ask for a discount on the original price or even walk away altogether.

A clean, sealed, and dry crawl space, on the other hand, shows buyers that you've been a responsible owner and taken great care of your property. It's a confidence booster that translates into faster sales and higher prices.

4. The Invitation Pests Can't Resist

The thing about crawl spaces is that they are dark, somewhat protected from the elements, and humid. And while this description would probably make you never venture into it (and chances are you haven't), this is like a cozy little hideaway for pests.

Termites, carpenter ants, cockroaches, rodents (and sometimes snakes looking for said rodents) will see it as home sweet home. Once they settle in, they can quickly spread through the rest of your house. And the damage? Termites alone cause millions of dollars in damage nationwide every year.

When you encapsulate your crawl space, you make it uninviting for pests. Dry air and sealed surfaces mean no entry points, no colonies, and no need for repeated pest control visits. That's one less ongoing expense eating away at your peace of mind.

5. The Health Costs You Might Not See

Remember the stack effect? The cold, humid air rising from your crawl space is not just an issue for your home; it can also affect your health. Moist air creates the perfect environment for mold and mildew. Over time, these spores can travel into your living environment through air movement and ductwork.

If you've noticed musty odors, frequent allergies, or worsening asthma symptoms, your crawl space might be part of the problem. Professional encapsulation will improve your indoor air quality, helping your family breathe easier and stay healthier year-round.

Calculating Your Return on Investment (ROI)

When you add up all these ongoing and potential costs, the picture becomes clear if you do not invest in crawl space encapsulation:

  • Higher energy bills every month.
  • The risk of a five-figure structural repair bill.
  • A significant decrease in your home’s resale value.
  • Recurring pest control fees.
  • Potential healthcare costs from poor air quality due to mold.

Now, compare those ongoing costs to the one-time price of crawl space encapsulation. A properly sealed and conditioned crawl space solves all of these problems at once.

Let’s imagine a simple scenario. If encapsulation saves you just $50 a month on your energy bills, that’s $600 a year. If it helps you avoid a single $10,000 structural repair over the life of your home, the system has more than paid for itself. The savings on energy bills, the protection of your property value, and the avoidance of future repairs mean that crawl space encapsulation often pays for itself in just a few years. After that, it’s putting money back in your pocket.

Don't Wait for Problems to Show Up

If you have dealt with high energy bills, musty odors, or floors that feel damp or uneven, you’re already seeing the signs of a bigger issue. Now that you know what causes it and how to stop it, it's time to take the next step. Call Restore-It today or schedule your free crawl space inspection online.

So what should you do? The first step is simple: contact a professional crawl space company. During your inspection, the team will check for signs of moisture, structural damage, pests, and air leaks.

Our team will give you a clear, honest assessment of your crawl space condition and a detailed plan to fix it. Forget the guesswork or the high-pressure sales tactics. Even if you are not ready to encapsulate right away, understanding your current risks is the smartest move you can make as a homeowner. Let's help you protect your home, your family, and your peace of mind, starting from the ground up.