Crawl Space Repair in Union, Missouri
Reviewed by Michael Peterson· Licensed Home Inspector
23 crawl space companies serve Union, Missouri, together holding 3,890 customer reviews. Missouri Basement is the highest-rated at 5.0★ (320 reviews). Local crawl space repair typically runs $1,500–$6,000, and full encapsulation $3,000–$8,000. The most common services offered here are crawl space repair, foundation repair, mold removal.
Find trusted local contractors for crawl space encapsulation in Union, waterproofing in Union, mold removal in Union, and more in Union.
Local Price Estimates — Union
* Estimates based on local market rates. Get free quotes for exact pricing. See the full repair cost guide, encapsulation cost guide, or cost calculator.
Crawl Space Contractors in Union
1281 Graham Rd #305, Florissant, MO 63031, USA
6 reviews
1550 U.S. Rte 66 Suite B, Lebanon, MO 65536, USA
13 reviews
100 Hawning Rd Unit C, St Charles, MO 63301, USA
320 reviews
762 Luetkenhaus Blvd #628, Wentzville, MO 63385, USA
31 reviews
581 Mid Rivers Mall Dr, St Peters, MO 63376, USA
15 reviews
604 S Main St, Auxvasse, MO 65231, USA
25 reviews
302 S Main St, O'Fallon, MO 63366, USA
19 reviews
200 S Elam Ave, Valley Park, MO 63088, USA
178 reviews
200 S Elam Ave UNIT 200, Valley Park, MO 63088, USA
357 reviews
1625 Larkin Williams Rd, Fenton, MO 63026, USA
1672 reviews
2898 State Hwy M, Kingdom City, MO 65262, USA
385 reviews
200 W 12th St Ste 120, Washington, MO 63090, USA
171 reviews
2155 State Hwy Z, Wentzville, MO 63385, USA
55 reviews
14158 Timberline Dr, De Soto, MO 63020, USA
49 reviews
2451 N Lark Dr, Fenton, MO 63026, USA
21 reviews
1673 Old Hwy 50 W, Union, MO 63084, USA
45 reviews
2 Truman Ln, Union, MO 63084, USA
91 reviews
8204 Exchange Way, St. Louis, MO 63144, USA
128 reviews
18167 Edison Ave Suite I & J, Chesterfield, MO 63005, USA
71 reviews
57 Corporate Dr, Union, MO 63084, USA
15 reviews
FAQs — Crawl Space Services in Union
How much does crawl space repair cost in Union?
Crawl space repair in Union, Missouri typically costs between $1,500 and $6,000, depending on the extent of damage and services required. With 23 local companies to compare, getting 2–3 quotes usually saves 15–30%.
How much does crawl space encapsulation cost in Union?
Crawl space encapsulation in Union typically costs between $3,000 and $8,000. The price depends on the size of your crawl space and the materials used.
Who is the top-rated crawl space company in Union?
Missouri Basement is the highest-rated crawl space contractor in Union with a 5.0★ rating from 320 reviews. PuroClean of Wentzville (5.0★, 31 reviews) is also highly rated. Ratings shown are from public customer reviews.
How many crawl space contractors serve Union?
23 crawl space companies are listed for Union. The average local rating is 4.9★ across 3,890 reviews. Contractors in nearby St. Louis and Springfield also serve the area.
What crawl space services are available in Union?
Union contractors most commonly offer crawl space repair, foundation repair, mold removal, alongside repair, insulation, cleaning, and inspection. Compare providers above to see who offers what.
What should Union homeowners know before hiring a crawl space contractor?
Radon is the #2 cause of lung cancer in the US, and Midwest homes are in a high-radon zone. If you are encapsulating your crawl space, add a radon mitigation system at the same time — bundling saves $500–$1,000 vs. separate installations. Always verify licensing and insurance, and get itemized quotes from at least two Union-area companies before signing.
Crawl Space Concerns in Missouri
The Midwest combines multiple crawl space risks: radon gas seeping through soil, clay soils that move seasonally, and extreme weather events. A properly encapsulated crawl space with radon mitigation addresses the most serious health and structural risks in this region.
Local Tip — Missouri
Radon is the #2 cause of lung cancer in the US, and Midwest homes are in a high-radon zone. If you are encapsulating your crawl space, add a radon mitigation system at the same time — bundling saves $500–$1,000 vs. separate installations.
Recommended services for Union:
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Pro Tip
Prices vary by location, crawl space size, and severity. Always get 2–3 quotes before hiring.