Looking for a crawl space contractor in Semmes, AL? Describe your project once and up to five crawl space contractors who work in Semmes and Mobile County get back to you with a quote. It's free and there is no obligation.
Semmes is home to about 6,193 people (2024 Census Bureau estimate), a growing community (+21.2% since 2020). With 407 people per sq mi, it is a semi-rural area. Humid summers and homes built over vented crawl spaces make moisture problems common here.
Semmes at a glance
- Population (Census Bureau estimate, 2024)
- 6,193 (+21.2% since 2020)
- Rank in Alabama
- 95th of 463 cities and towns
- Land area
- 15 sq mi
- Population density
- 407 people per sq mi (semi-rural)
- Type
- City (Semmes city)
- Main county
- Mobile County
What to check before hiring in Semmes
- Water first: standing water needs drainage before a vapor barrier.
- Wood damage: ask for a moisture reading and an assessment of joists and sills.
- Humidity control: check what dehumidifier or air supply is included and its maintenance.
- Price drivers: footprint, height, debris removal, drainage and repairs.
Useful official resources
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U.S. Department of Energy: Energy Saver
Official information and guidance.
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EPA: mold
Official information and guidance.
Services available in Semmes
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Crawl space encapsulation
Heavy vapor barrier on the floor and walls, sealed vents and a dehumidifier or conditioned air.
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Crawl space drainage and joist repair
Drainage, sump pump, joist or support repairs before or with encapsulation.
Frequently asked questions in Semmes
How much does crawl space encapsulation cost in Semmes, AL?
It depends on the size of the crawl space, its condition and the equipment. Describe it: contractors who serve Semmes reply with a quote.
How long does it take?
Often two to four days for a typical house.
Does it need maintenance?
Yes: the dehumidifier and any sump pump need regular checks.
Which crawl space contractors will contact me?
Up to five independent crawl space contractors who serve Semmes and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.