Crawl Space Encapsulation Cost Estimator for Oklahoma City Homes
How to Use This Estimator
This is a simple way to build a planning budget for encapsulating your crawl space. It uses typical Oklahoma City ranges. Your free written quote after an inspection will be more precise, but this helps you know what to expect.
Step 1: Measure the Crawl Space
Most crawl spaces match the footprint of the house minus any garage, porch or slab additions. A 1,500 sq ft single-story home usually has close to 1,500 sq ft of crawl space. Also note the wall height: walls over 3 feet add noticeably more liner.
Step 2: Pick a Base Rate
| Option | Rate |
|---|---|
| Vapor barrier only, floor | $1.00 to $2.50 per sq ft |
| Full encapsulation, 12 mil, average access | $3.50 to $5.00 per sq ft |
| Full encapsulation, 20 mil, tall walls or tight access | $5.00 to $7.50 per sq ft |
Multiply your square footage by the rate. Full encapsulation rates above include the liner, sealing and a standard dehumidifier.
Step 3: Add Equipment
- Upgraded or second dehumidifier: $1,500 to $3,000
- Condensate pump: $150 to $400
- Sealed access door: $300 to $900
- Remote humidity sensor: $50 to $250
Step 4: Add Repairs That Come First
- Sump pump and basin: $1,200 to $2,500
- Interior perimeter drain: $30 to $70 per linear ft
- Mold remediation: $1,500 to $4,500
- Reshimming and new supports: $500 to $6,000
- Old insulation removal: $1.00 to $2.00 per sq ft
Step 5: Put It Together
Example: a 1,400 sq ft crawl space at $4.50 per sq ft is $6,300. Add a condensate pump ($250) and a new access door ($500), and the encapsulation budget is about $7,050. If the floor also needs reshimming and two new supports ($1,800), the total is roughly $8,850.
For the full breakdown, read How Much Does Crawl Space Encapsulation Cost in Oklahoma City? Then call for a free inspection and a written quote.
Want a free quote?
Call (405) 400-1701 or use the form for a free inspection and written quote.


