Radon Mitigation Cost in Texas (2026): What to Expect

Radon in Texas: What the Numbers Show

Texas is predominantly EPA Radon Zone 2 (moderate: predicted average between 2 and 4 pCi/L) with some Zone 3 (low) counties along the Gulf Coast. But individual homes regularly test above the 4.0 pCi/L action level — particularly in the Hill Country, the Permian Basin, and the Texas Panhandle where uranium-bearing granite and limestone geology is more common.

If you've tested above 4.0 pCi/L, mitigation works the same in Texas as anywhere: a sub-slab depressurization system drops levels by 90%+ in most homes.

Cost by Foundation Type

Slab-on-Grade: $900–$2,200

The vast majority of Texas homes built after 1980 are slab-on-grade — the easiest and cheapest foundation to mitigate. A contractor drills one hole through the slab, inserts PVC pipe, and routes it to an exterior-mounted fan.

• Simple slab, 1,500–2,500 sq ft: $900–$1,400
• Standard slab with interior pipe routing: $1,200–$1,800
• Multiple sub-slab zones (garage, addition): $1,600–$2,200

Pier-and-Beam: $2,000–$5,000+

Older Texas homes — particularly pre-1970 Craftsman bungalows in Dallas, Houston, and Austin — often sit on pier-and-beam foundations with open crawl space underneath. These are treated like any crawl space system: encapsulation may be needed, access can be tight, and soil conditions vary.

• Open crawl space, good access: $2,000–$3,200
• Partial encapsulation required: $3,000–$4,500
• Full encapsulation + mitigation: $4,500–$7,000+

Finished Basement: $1,100–$2,400

Basements are rare in Texas but exist in some Hill Country and North Texas homes. Pricing is similar to national averages.

Texas-Specific Cost Factors

Contractor availability: The Houston, Dallas-Fort Worth, Austin, and San Antonio metros have multiple certified contractors competing for work — this keeps prices competitive. Rural West Texas and the Panhandle may have fewer options and slightly higher prices.

Climate and exterior mounting: Texas heat can shorten fan life if the unit is mounted in direct sun on a south-facing wall. Good contractors use shade-sheltered or attic-mounted configurations. Ask about it.

No state licensing: Texas doesn't require state licensure for radon contractors. This means unlicensed operators exist. Always verify NRPP or NRSB certification at radonproficiency.org or nrsb.org.

Heat and humidity: South Texas crawl spaces can have moisture issues that complicate mitigation. Contractors may recommend vapor barriers or drainage before installing the fan system.

What's Included in a Quote

A proper Texas radon mitigation quote includes:

• Pre-installation radon test (or acknowledgment of your existing test)
• Core drilling and PVC pipe installation
• Fan installation and electrical connection
• Sealing of slab penetrations
• Post-mitigation test (or test kit provided)
• Written guarantee that system will reduce levels below 4.0 pCi/L

Getting Quotes

Get at least two quotes. In DFW, Houston, and Austin, prices vary 20–35% between contractors. The cheapest quote isn't always the worst — but ask any contractor to show their NRPP or NRSB certification number and verify it independently.

Texas Resources

• Texas Dept of State Health Services: dshs.texas.gov (search "radon")
• Verify NRPP: radonproficiency.org
• Verify NRSB: nrsb.org

Find certified radon mitigators in Texas →