About the Author
Jeff Kinton is the owner of SafeHarbor Inspection Group and has completed more than 5,000 home inspections throughout the Atlanta area. His approach is simple: explain what matters, put defects in proper context, and provide perspective instead of panic.
Atlanta Home Inspector Since 2015
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Should I Buy a Home With a Crawlspace in Atlanta?
By Jeff Kinton
SafeHarbor Inspection Group
Quick Answer
Yes. There is nothing inherently wrong with buying a home built over a crawlspace. Crawlspaces are common throughout Atlanta, particularly in older homes, and the fact that a house has one wouldn't discourage me from buying it.
What matters much more is the condition of the crawlspace: Is it reasonably accessible? Is it dry? Is moisture being properly managed? Can the foundation and floor structure be adequately inspected? And are there signs of plumbing leaks, fungal growth, wood deterioration, structural movement, or other problems that need attention?
A well-maintained crawlspace shouldn't scare you. But it should absolutely be inspected.
Should I Be Concerned About Buying a Home With a Crawlspace?
I understand why buyers sometimes are. You're preparing to make what may be the largest financial investment of your life, and a significant portion of the house is sitting over a dark space underneath the floor that you probably haven't seen. That can give people the willies. And frankly, buyers aren't the only ones who dislike things they can't see. Home inspectors don't particularly like them either.
A home inspection is primarily a visual inspection. The more of the house I can physically access and see, the more information I can give you about its condition. But there's nothing inherently adverse about a crawlspace compared with a basement or slab-on-grade foundation. It's simply one of the ways homes have traditionally been constructed, and you'll find them beneath countless houses throughout Metro Atlanta.
The question isn't whether the house has a crawlspace. The question is what condition that crawlspace is in.
What Does a Home Inspector Look for in a Crawlspace?
When I enter a crawlspace, I'm initially trying to get a sense of its overall condition. Is there a vapor barrier over the exposed soil? Is the space reasonably dry? Is there standing water? What are the moisture levels like? Can I access most or all of the area beneath the house?
From there, I'm looking at the foundation and floor structure, plumbing, electrical wiring, HVAC ductwork and other visible components beneath the home. I'm also looking for evidence of leaks, wood deterioration, fungal growth, structural movement, pest activity and previous repairs.
One of the nicest things I can encounter is a clean, dry, accessible crawlspace where the major components of the house remain visible. That doesn't mean everything underneath the home has to look brand new. Particularly in an older Atlanta house, it probably won't. It means I can see what's there.
And years down the road, if you need a plumber, electrician, HVAC technician or another contractor to work underneath the house, they'll appreciate that accessibility too.
In a Crawlspace, It Usually Comes Back to Water
If I had to identify the single issue I'm most concerned about in an Atlanta crawlspace, it would be moisture. That's one reason I generally save the crawlspace for the end of the inspection.
By the time I get underneath the house, I've already inspected the roof and exterior. I've seen how the property is graded. I've looked at the gutters and downspouts. I know whether trees are contributing leaves and debris that may interfere with drainage. I've operated the plumbing fixtures inside the house. All of that information matters.
If I discover moisture in the crawlspace, I'm not simply standing underneath the house thinking, Well, there's water. I'm trying to understand why it's there. Is rainwater draining toward the foundation because of poor grading? Are overflowing gutters or improperly terminated downspouts contributing to the problem? Is there a plumbing leak? Is this evidence of an older problem that's already been corrected?
That's one of the benefits of evaluating the crawlspace as part of the entire house, rather than treating it as an isolated space.
What About Mold and Fungal Growth?
Moisture and fungal growth naturally go hand in hand, particularly in Atlanta's humid climate. Finding some minor fungal growth or staining in a crawlspace isn't especially unusual. Crawlspaces are dark spaces located directly above the ground, and many have spent decades experiencing varying levels of humidity.
What matters is the extent of the growth and, more importantly, the moisture conditions allowing it to occur. Simply cleaning visible fungal growth without controlling the underlying moisture is unlikely to provide a lasting solution. That's why I'm generally more interested in the larger story.
Is the crawlspace staying excessively humid? Is outside water entering? Is there a plumbing leak? Is the vapor barrier missing or inadequate? Would improved drainage, encapsulation or permanent dehumidification help?
Address the moisture problem, and you're addressing the environment that allows fungal growth to continue.
Is Crawlspace Encapsulation a Good Thing?
Generally, yes.
A properly designed encapsulation system can be an excellent way to control ground moisture and humidity in a crawlspace, particularly when it's paired with an appropriately installed permanent dehumidifier. Depending on the conditions, a more extensive water-management system may also include interior drainage and a sump pump.
There's an important distinction, though. A waterproofing system can do an excellent job managing water after it reaches the crawlspace, but I still want to know why the water is getting there in the first place. If the property has poor grading, clogged gutters, inadequate downspout extensions or another exterior drainage problem directing water toward the foundation, correcting those conditions may be an important part of the solution.
In other words, I don't just want to know that we're successfully removing the water. I want to know whether we can keep some of it from getting there in the first place.
When Encapsulation Can Hide Too Much
There's another side to encapsulation and insulation that's worth understanding. Occasionally I'll enter a crawlspace where spray foam or another material has been applied extensively over the floor framing and around components underneath the house. That may provide excellent insulation, but it can also create a problem for an inspector: I can't inspect what I can't see.
If the framing is completely concealed, evaluating it for moisture damage, deterioration or other concerns becomes more difficult. A plumbing leak may also be harder to identify and trace when much of the surrounding structure is hidden behind insulation.
This doesn't automatically mean there's anything wrong underneath it. It simply introduces uncertainty. And when I'm inspecting a house for someone who's about to buy it, I'd rather have visibility than uncertainty whenever possible.
Do Crawlspaces Have Any Advantages?
They can, particularly when compared with a slab-on-grade home. If plumbing, electrical wiring, gas piping or another component needs to be repaired, rerouted or added later, having access beneath the floor can make the work considerably easier than cutting into a concrete slab.
A full basement generally provides even better access, of course. I'm not going to pretend a 30-inch-high crawlspace is secretly luxurious because a plumber can wriggle through it with a flashlight. But accessible space beneath the house can certainly make future repairs and modifications easier.
Older Atlanta Homes Can Be a Little Different
One thing buyers should understand about older homes is that crawlspaces weren't always built with today's expectations for accessibility. Some older Atlanta houses have extremely tight clearances beneath portions of the structure. There may be areas where an inspector simply cannot physically fit. That doesn't mean there's a defect hiding there. It means there's an inspection limitation. Those are two very different things.
If I can't reach an area, I'll generally explain that to you. It wouldn't automatically make me tell you not to buy the house, but I do think buyers deserve to understand when portions of a property couldn't be fully evaluated. The more accessible a crawlspace is, the more confidently we can assess what's happening underneath the home.
Would I Walk Away From a House Because It Has a Crawlspace?
No. I've inspected plenty of homes with crawlspaces that were dry, well maintained and in excellent condition. I've inspected others with moisture problems that were completely manageable. And, like every other part of a house, I've encountered crawlspaces with problems that deserved considerably more attention.
What I wouldn't do is make a decision based simply on the word crawlspace. I'd make it based on what we found. Significant water intrusion, structural deterioration, extensive fungal growth or portions of the structure that can't be inspected may warrant additional evaluation and potentially significant repairs. Those are things a buyer should understand before moving forward.
But the crawlspace itself isn't the red flag. Water, deterioration, poor access and unresolved problems are the things that deserve your attention. A clean, dry and reasonably accessible crawlspace beneath a well-maintained home wouldn't give me any particular reason for concern.
And that's ultimately what a good home inspection should help you distinguish: the things that merely look intimidating from the things that actually matter.
Need a Home Inspection in Atlanta?
SafeHarbor Inspection Group has completed more than 5,000 home inspections throughout the Atlanta area. If you're buying a home and would like a thorough, easy-to-understand evaluation of the property, we'd be happy to help.