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Crawl space encapsulation in Southeast Michigan.
A wet, vented crawl space pushes humid, moldy air up into your living space — half the air you breathe upstairs comes from below. We seal the floor, line the walls, drop the humidity, and keep it that way.
How we approach it
The Quali-Dry
approach.
The stack effect is real.
Warm air rises through your house and pulls cooler air up from the crawl space to replace it. Whatever's down there — moisture, mold spores, radon, decomposing insulation — comes with it. Sealing the crawl from the outside breaks that cycle and the whole house breathes better.
20-mil reinforced barrier, not the cheap stuff.
We use 20-mil reinforced vapor barrier — thick enough to walk on, seamed and sealed to walls and piers. Builder-grade 6-mil plastic that some contractors use lasts 18 months and tears under a service tech's boot. Ours is engineered to last decades.
Dehumidifier sized to the cube.
A 50-pint dehumidifier won't keep up with a 1,400 sq ft crawl space in a humid Michigan summer. We calculate the actual moisture load — square footage, ceiling height, ground moisture, outside dew point — and spec the dehumidifier accordingly.
What's included
Scope of work,
in plain English.
- 20-mil reinforced vapor barrier on floor, mechanically attached and seam-taped
- Wall liner with thermal break for energy efficiency
- Pier wraps for support columns
- Sealed, insulated crawl door
- Conditioned dehumidifier sized to the space
- Sealed vents to eliminate outside humidity intrusion
- Mold and mildew remediation coordinated with licensed partners
- Improved indoor air quality and HVAC efficiency
Common questions
What homeowners
ask us first.
How much does crawl space encapsulation cost in Michigan?+
Typical cost: $4,500–$9,500 for a standard 800–1,600 sq ft crawl, including 20-mil vapor barrier, sealed door, dehumidifier, and vent sealing. Larger crawls and projects that need mold remediation push the upper end.
Does crawl space encapsulation help air quality upstairs?+
Yes, measurably. Mold spore counts and humidity in the living space typically drop within weeks. Homeowners with allergies often notice the improvement first.
Will encapsulation save on my utility bill?+
Usually 8–15% on heating and cooling. Conditioned crawl spaces reduce HVAC load — especially in humid Michigan summers when AC has to fight crawl-borne moisture.
Can I encapsulate a crawl that already has mold?+
Not directly — mold must be remediated first, then we encapsulate. We partner with a licensed remediation crew when needed and coordinate the whole sequence so it's one project, not three.
Where we do this work
Crawl Space
across Southeast Michigan.
Related services
Often paired
with crawl space.
Free, no-pressure
written estimate.
Tell us what's going on. We'll come look, explain what we see, and email you a written estimate within one business day. No deposit. No script.
