Half Your Crawl Space Humid? Your Dehumidifier Might Be In The Wrong Spot
Introduction
Another Poorly Placed Dehumidifier
AT THIS POINT, IT'S NO SURPRISE AT ALL
I got an emergency call the other day from a homeowner dealing with humidity problems in their crawl space.
The company that installed their system couldn't come out for two weeks.
Two weeks!
I was there within two hours, and what I found is something I see way too often.
Here's the thing - having a dehumidifier in your crawl space is great, but only if it's installed correctly.
Just putting one down there isn't enough.
And unfortunately, many homeowners are paying good money for systems that aren't working like they should.
The Problem We Found
As soon as I got into this customer's crawl space, I spotted several issues. First, their dehumidifier wasn't even level - it was just sitting on the ground. That's problem number one. But the bigger issue? It was crammed up against a wall, just a couple feet from it.
Why is this such a big deal? Well, a dehumidifier needs space to breathe. It needs to pull in air from one side and push it out the other. When it's stuck next to a wall like this one was, it's only working at about 50% capacity. That means half the crawl space - the far side - stays humid.
And guess what we found on that side?
Mold.
The kicker? This was all done to save a few hundred bucks on electrical work. Instead of installing proper outlets where the unit needed to be, they just put it where they could reach power easily. Now the homeowner is dealing with much bigger problems that cost a lot more to fix.
Why Proper Placement Matters
Listen, a dehumidifier in your crawl space works kind of like a fan in your house. If you stick a fan in the corner behind your couch, it's not going to cool the whole room very well, right? Same thing with your dehumidifier.
These units need open space to work properly. They pull in damp air from one side, dry it out, and push it back out the other side. When they're placed correctly, they create a cycle that keeps your whole crawl space dry. But when they're stuck in a corner or against a wall, they're just moving the same small pocket of air around.
Common Installation Shortcuts
I hate to say it, but I see these shortcuts all the time when I'm checking other companies' work:
- Putting the unit wherever there's already power
- Not leveling it properly
- Cramming it in the easiest spot to reach
- Using just one outlet instead of running proper electrical
Companies do this to save time and money.
But here's the truth - they're saving themselves money, not you.
Because eventually, you'll end up with mold, moisture problems, and a much bigger bill to fix it all.
The Right Way to Install
When we install a dehumidifier, we do it right:
- Place it in the center of the space where possible
- Make sure it's perfectly level
- Install multiple outlets for proper positioning
- Give it plenty of room for air flow
Yes, this might cost a bit more upfront. But it's a lot cheaper than dealing with mold removal down the road. Plus, when it's installed correctly, your dehumidifier will work more efficiently, which actually saves you money on energy costs over time.
How to Check Your Current Setup
Want to know if your dehumidifier is installed right?
Here are some simple things to look for:
- Is it level? You can check this easily with any level app on your phone
- Does it have at least 3 feet of clear space on all sides?
- Is it sitting in the middle of your crawl space, or stuck in a corner?
- Are you noticing some areas of your crawl space feel more humid than others?
If you spot any of these issues, you might not be getting the protection you paid for.
The Bottom Line
Look, I get it. Everyone wants to save money. But cutting corners on dehumidifier installation is like buying a great car and filling it with the wrong fuel - you're just asking for problems.
When I see jobs like this emergency call, where someone's dealing with mold because their dehumidifier was poorly installed years ago, it drives me crazy. Because it didn't have to be this way. The few hundred bucks they saved on proper electrical work ended up costing them thousands in mold removal.
Ready to Get This Checked Out?
If you're worried about your crawl space dehumidifier, I'll take a look.
Unlike those two-week wait times from big companies, I usually respond within hours.
The inspection is free, and I'll tell you straight up if there's a problem or not.
Give me a call or text - you'll get me, not a call center.
And remember, no pressure, no sales tactics. Just honest answers about what's going on under your house.


