Wyoming particulars
Wyoming's Building Inspections office is at 1155 28th Street SW, 616-530-7285, and plumbing permits are filed online through BSA Online, with a $50 application fee that includes one inspection on an undated schedule, so ask for the current one. Sump or drain work reaches that plumbing counter even when the wall work does not. Wyoming has 76,865 residents, and 65.1 percent of its homes predate 1980, with a median value of $203,900.
Kent County is EPA radon Zone 2, with predicted indoor levels between 2 and 4 pCi/L; EGLE adds that high radon turns up in every Michigan county. Frost depth in Michigan is 42 inches below actual grade for footings, a figure that matters when a contractor proposes new piers, though your building official may modify it. If the quote is for structural work, ask who wrote the diagnosis and if that person also sells the repair. Grandville is 2.4 miles away, and Grand Rapids 5.5.
Crawl space encapsulation in Wyoming: what to know
Under 2015 code R408.3, an unvented crawl space needs a sealed Class I vapor retarder and conditioned or exhausted air at 1 cfm per 50 square feet. Ask if Wyoming reviews that under a building or mechanical permit; the number is 616-530-7285 (confirm).
With 65.1 percent of homes built before 1980, many floors above crawl spaces are old. Test radon before and after, since EGLE says one in four Michigan homes is expected above 4 pCi/L. Kentwood is 5.8 miles away if you want a second office to ask. Any company taking $600 or more for the work needs a state license.
Permits for crawl space encapsulation in Wyoming
Nothing we found lists encapsulation as a permit item.
Many cities run their own building department, so start by asking the City of Wyoming building department who issues foundation repair permits.
When a damp crawl space counts as an emergency
- Water is standing in the crawl space near wiring or a furnace. Do not wade in.
- The floor above is sagging or a support has moved.
- A musty smell in summer.
- Condensation on cool pipes or the rim joist.
What to check before you call about a crawl space
Try this first: get the scope in writing, including the permit and who pulls it.
- Look at the ground and the floor above with a flashlight, and note standing water, wet insulation or a smell.
- Buy a humidity meter and read it over a few weeks.
- Ask any company to say in writing what it measured.
What crawl space encapsulation costs
The estimate below is the Michigan-wide one, adjusted for Michigan wages and not for Wyoming in particular. The same table is on the crawl space encapsulation page. How we estimate costs. Prices as of Oct 19, 2026.
| Item | Figure | What it is |
|---|---|---|
| Estimated range, not a quote | $2,300 to $15,300 per project | Built from 2 national published ranges, adjusted by the Michigan carpenter median wage ratio (1.02). No Michigan foundation company price is shown, because none of the companies we looked at published a price we could count. |
| Estimated range per square foot, not a quote | $3 to $12 per square foot of crawl space | Built from one national published range, adjusted by the Michigan carpenter median wage ratio (1.02). No Michigan foundation company price is shown, because none of the companies we looked at published a price we could count. |
| Carpenters, Michigan median | $61,680 a year | What workers are paid (BLS 2025 data via O*NET), not what you are charged. |
| Construction laborers, Michigan median | $49,590 a year | What workers are paid (BLS 2025 data via O*NET), not what you are charged. |
| Building permit, Sterling Heights | $56 application fee | 2026-27 application. No encapsulation line. |
| Building permit, Grand Rapids | $79 for work valued at $1 to $1,000; $215 at $20,001 to $21,000 | FY2027 chart. No crawl space line. |
| Building permit, Lansing | $175 for work valued at $4,001 to $10,000 | Schedule of July 1, 2026. |
How we estimate costs: the Estimated range row is a model, not a quote. It takes two published national ranges for this job (cost guides from third-party sites that we have not verified and do not cite) and multiplies them by Michigan's carpenter median wage ratio to the US (1.02, BLS 2025 data read through O*NET OnLine). No permit fee is added: the city permit rows below are shown as printed. The wage and permit rows are what workers are paid and what a city's own schedule charges, and neither is a price. Your soil, water and the repair method move a real quote well outside any range, so get an independent diagnosis first. We have not collected quotes, and we found no Michigan foundation company that publishes a price we could count. Full method.
Questions about crawl space encapsulation
Do crawl spaces need encapsulation?
Not under the code we read. The 2015 residential code allows a vented crawl space, and allows an unvented one built to R408.3, so encapsulation is a choice and not a requirement.
Is a dehumidifier required in an encapsulated crawl space?
The 2015 code section we read does not name one. It requires continuous exhaust or conditioned air at 1 cfm per 50 square feet, and does not name a liner thickness either.
What humidity should an encapsulated crawl space be?
No government agency we read sets a target for a crawl space. EPA's figure of below 60 percent, ideally 30 to 50 percent, is for indoor air, and a humidity meter costs about $10 to $50.