Crawl space encapsulation in Dallas: dry under your house, guaranteed for 20 years
For Dallas pier-and-beam homes: a sealed liner, drainage correction, and a dehumidifier that ends the damp crawl space for good.
From $$4,500 · 20-year warranty on the vapor barrier liner, annual humidity check included for 2 years
The problem
Your pier-and-beam home smells musty, the floors feel damp in summer, and you already know what's under there: bare dirt, standing moisture, and fuzzy joists.
Up to half the air you breathe on the first floor rises from the crawl space. A damp crawl space feeds mold into your subfloor and joists year after year, and spot-treating the wood without sealing the space means paying for the same fix on repeat.
We clean and treat the existing growth, correct the drainage, then seal the entire space with a 12-mil reinforced vapor barrier, sealed vents, and a dedicated dehumidifier. Humidity stays under 55% permanently, and we verify it at annual checkups.
We handle every crawl space encapsulation job from start to finish. Our crew always shows up on time, works clean, and we stand behind every result.
What’s included
- Crawl space mold treatment before sealing
- 12-mil reinforced vapor barrier, sealed seams
- Vent sealing and insulated access door
- Drainage correction or sump where needed
- Energy-efficient crawl space dehumidifier
- 2 years of annual humidity verification visits
Our process
We believe in transparency at every step.
- 1Crawl space assessment with photos and humidity readings
- 2Existing mold treated, debris and old insulation removed
- 3Liner installed, seams and piers sealed, vents closed
- 4Dehumidifier installed and humidity verified under 55%
Transparent pricing
| Encapsulation, up to 1,500 sq ft footprint | from $4,500 |
| Encapsulation, 1,500 to 2,500 sq ft | from $6,800 |
| Drainage correction / sump add-on | from $1,400 |
Recent crawl space encapsulation reviews
Turns out both bathroom fans in our 1962 Richardson Heights house had been venting into the attic for 60 years. The decking above the bathrooms was covered. They remediated, rerouted both vents through the roof, and the follow-up air test was clean.
Pinhole leak in old galvanized pipe inside the wall of our Canyon Creek home. They found it in the first hour with moisture mapping, contained the room, and we were done in 3 days. The daily readings emailed to us made the whole thing feel transparent.
Mold kept coming back on one bedroom wall of our Rosemeade zero-lot house. Two other companies just cleaned it. Trinity found the blocked weep holes and the grading problem on the side yard, fixed the actual cause, and 8 months later it hasn't returned.
Encapsulated the crawl space under our 1948 house near Old Downtown Carrollton. The musty smell we'd lived with for years was gone in about 2 weeks, and the humidity monitor they installed reads 52% all summer. Should have done it a decade ago.
Where we offer Crawl Space Encapsulation
Crawl Space Encapsulation in Richardson · Crawl Space Encapsulation in Carrollton
Helpful guides
Frequently asked questions
Is encapsulation worth it for an older Dallas home?
Pier-and-beam homes from the 1950s through 1970s benefit the most. Owners typically see the musty smell disappear within weeks, more stable floors, and 10 to 15% lower summer cooling bills.
Do you treat the mold first or just seal over it?
Always treat first. Sealing over active growth traps the problem. We clean and treat all framing, verify it, then encapsulate.