Crawl Space Repair & Encapsulation in Mobile, AL
If your house smells musty, your floors feel spongy, or your summer power bills keep climbing, the answer is probably under your feet. A wet crawl space rots framing, feeds mold, invites termites, and pumps humid air up into the living space — about half the air you breathe on the first floor comes up from down there.
We repair what the moisture broke and then control the moisture itself. That runs from straightforward fixes — a proper vapor barrier over bare dirt, repaired vents, a condensate drain rerouted — up to full encapsulation: sealed heavy-duty liner, sealed vents, and a dehumidifier that keeps the space dry year-round. We recommend the level your house actually needs, not the biggest package.
Crawl space services
- Moisture and damage assessment with photos
- Heavy-duty vapor barriers over exposed soil
- Full encapsulation with sealed liner and dehumidifier
- Standing water drainage and sump solutions
- Sagging floor supports and joist repair
- Mold-damaged and rotted wood replacement
- Insulation replacement where moisture ruined it
How it works
Describe the symptoms
Musty smell, soft floors, high bills, or something you saw down there — all useful clues.
Full crawl inspection
We check moisture levels, wood condition, drainage, and vents across the whole space, with photos.
Options, not upsells
You get the fix-what's-broken option and the keep-it-dry-forever option, priced separately in writing.
Repair, then control
Damaged wood and supports first, then the moisture system — barrier or encapsulation — installed clean.
Gulf Coast crawl spaces are a special case
The old advice — 'vent the crawl space and let it breathe' — fails in Mobile. For most of the year, the outside air is more humid than the crawl space, so open vents pump moisture in, where it condenses on cool ducts and framing. That's why vented crawl spaces here grow mold on the joists and drip off the AC ducts in July.
Between the rain, the water table, and the humidity, a Mobile crawl space that's never been addressed is almost certainly damp right now. Encapsulation was practically invented for climates like ours: seal the ground, seal the vents, dry the air. Houses that get it done see floors firm up, smells disappear, and cooling costs drop — and the framing above stops deteriorating.
Crawl Space Repair questions
What does crawl space encapsulation cost in Mobile?
Full encapsulation — sealed liner, sealed vents, dehumidifier — typically runs $4,000–$12,000 depending on the size and condition of the space. A basic vapor barrier over the soil is far less, often under $2,000. The free assessment tells you which level your house actually needs.
Is the mold under my house dangerous?
Surface mold on crawl space framing is common here and mainly a symptom: it means the moisture is high enough to grow it, which is the same moisture rotting your wood. Fixing the moisture stops the growth; badly affected wood gets cleaned or replaced as part of the repair.
Do I need a dehumidifier, or is a vapor barrier enough?
A ground vapor barrier stops soil moisture, which is sometimes enough for a well-drained lot. But it can't do anything about humid air coming through open vents. If the wood moisture readings are high, sealed-plus-dehumidifier is the honest recommendation in this climate.