COMMERCIAL SERVICES
Commercial Crawl Space Encapsulation in Birmingham, AL
Most property managers don’t think about the crawl space below their apartment complex, condo property, duplex, church, or converted office building until it starts causing problems. Those problems usually come in the form of humidity issues that cause musty units, A/C that can't keep up, and residents asking questions about mold. Southern Structural handles commercial crawl space encapsulation for properties across Birmingham with a written scope based on a free inspection, a vapor barrier system, and dehumidification.
Are Tenant Complaints Starting Under the Building?
If you’ve already received multiple calls or complaints about a musty smell around the property, you know the issue isn’t going to resolve itself. You may even be wondering if it could escalate to become a mold claim.
Here’s what’s actually at stake once a crawl space stays wet: Habitability complaints become a reasonable concern, leaving you legally exposed. Mold liability compounds across a multifamily building fast since crawl spaces are shared across several units, which makes one untreated problem generate complaints from every tenant unit the crawl space serves.
Eventually, the moisture works its way up into living space and sullies indoor air quality. Your HVAC system has to work extra hard against the humidity, increasing your utility bill every month. If left unaddressed for long enough, the joists will begin to rot, the floors will start to sag, and pests will be attracted to the dark, damp environment.
None of this is unusual for our region. Alabama’s humidity means a vented crawl space stays wet by design, as it’s built to bring in outside air. And outside air here carries moisture almost year-round. The solution is to seal it off and control what’s inside.
How Southern Structural Encapsulates Commercial Crawl Spaces
Sealed Vapor Barrier System
For this method, we install a heavy-duty liner across the crawl space floor and up the walls and seal it tight at every pier and penetration. Commercial crawl spaces tend to be bigger than residential ones, so that means more piers, more penetrations, and usually more access points. All of which need to be sealed correctly, or the whole system will allow the moisture right back in.
Dehumidification and Moisture Control
While the vapor barrier keeps ground moisture out, it doesn’t do anything to help the humidity that’s already in the air in the building. That’s where dehumidification comes in: It holds relative humidity below the point where mold can grow. It also helps bring your HVAC bill back down to normal levels because your system is no longer overcompensating for the humidity.
Drainage and Sump Systems
Some crawl spaces not only experience increased humidity—they take on actual water that then just sits, or stands, with no place to go. When that’s the case, we add drainage and a sump system to move the water and expel it somewhere else on the property.
Structural Repairs Under the Floor
Throughout the encapsulation process, what’s been hiding underneath the floor gets revealed. We’re talking rotted joists, sagging supports, and piers in the beginning stages of failure. As a foundation and structural repair company first, we’re able to fix what we uncover, all as part of the same job. Instead of separating the encapsulation and moisture removal job from the foundation repair job, we complete them both together.
Free Inspection and Written Scope
Our free inspection covers humidity readings, standing water entry evaluation, insulation and joist condition, evidence of pests, and how the space is currently ventilated. We’ll provide a written scope explaining exactly what the crawl space needs and why, not just a verbal quote that can be disputed.
Why Birmingham Property Managers Choose Us
Decades of Central Alabama Experience
Alabama’s humidity and rainfall have various effects on the soil and the structures it surrounds and supports. Here, it’s not unreasonable for a vented crawl space to remain damp indefinitely once it’s been wet, whereas in a drier climate, the moisture would evaporate. Over our 30+ years in business, we’ve built our approach around that reality instead of a one-size-fits-all mold.
Work Around Occupied Units
Crawl space work happens entirely below the floor, so your residents can stay put throughout the process. On multi-building properties, we schedule access to one building at a time, so the whole property doesn’t need to coordinate around us at once.
Structural and Moisture Under One Contractor
Most encapsulation companies don’t touch structural repairs, and most structural companies don’t do moisture control. Southern Structural does both, which matters when there’s a possibility that rotted joists could turn up in the middle of an encapsulation project. Our crew can fix the joists on the spot instead of referring you to another company.
Honest Assessment for What Needs to Be Done
If you’re comparing multiple bids across a portfolio, we’ll give you a straight answer on what your crawl space actually needs, not an inflated scope designed to get the job. Some properties need the full system while others only need certain parts. We’ll always explain what we recommend, why, and how much it’ll cost.
Properties We Serve
We serve various kinds of commercial properties, including:
- Apartment complexes
- Condo and HOA properties
- Duplexes and fourplexes
- Churches
- Converted residential offices
- Older retail buildings
- Single-property portfolios
The methods discussed on this page are specifically for properties built over a crawl space. If your building sits on a slab, you’re dealing with a different issue, and our commercial floor leveling page discusses the repair services needed for a sunken slab situation.
Southern Structural serves the Birmingham, Homewood, Hoover, Vestavia Hills, and surrounding central Alabama areas.
Frequently Asked Questions
Do tenants need to leave during crawl space encapsulation?
No, tenants don’t need to leave during crawl space encapsulation because all of the work happens underneath the building.
How long does encapsulation take on a multi-unit building?
Encapsulation timelines on a multi-unit building depend on the crawl space’s square footage, the number of piers and penetrations that require sealing, and whether drainage or structural repairs are also necessary.
Will encapsulation fix the musty smell tenants are reporting?
In most cases, yes, encapsulation fixes the musty smell tenants are experiencing, since the smell almost always comes from trapped moisture under the building.
Does an encapsulated crawl space still need a dehumidifier?
Yes, an encapsulated crawl space still needs a dehumidifier in most Alabama properties.
Can you encapsulate multiple buildings on one property?
Yes, Southern Structural can encapsulate multiple buildings on one property, and we typically schedule the work one building at a time so the rest of the property can continue operating normally in the meantime.
What happens if you find rotted joists or structural damage?
If we find rotted joists or structural damage during encapsulation, our crew will repair them as part of the same job.
Does encapsulation lower the property’s energy costs?
In some cases, encapsulation can lower the property’s energy costs since your HVAC system doesn’t have to work as hard to fight humidity coming up from an open or vented crawl space.
How do I know if my building’s crawl space is the source of the problem?
Musty odors, high indoor humidity, condensation on pipes or ductwork, and visible dampness in ground-floor units are common signs your building’s crawl space is the source of the problem. We recommend getting our free inspection to confirm it and rule out other possible causes.
Effectively Dry Your Crawl Space
Over time, crawl space problems work their way into the building’s units aboveground, affect your HVAC bill, and residents will start complaining about odors and humidity. Schedule a no-hassle inspection with Southern Structural to get a written scope and have everything handled by one contractor who manages both moisture and structural repairs without displacing your tenants.
Call 205-520-9777 or fill out the form below, and we’ll send out one of our experienced crew members to get it checked out.
