Best Radon Testing in Houston, TX
Compare 19 local radon testing providers in Houston. Verified listings with real contact info.
19 services listed
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Forensic Home Inspections
1001 Texas Ave Suite 1400, Houston, TX 77002
Monday: 7:00 AM – 7:00 PM | Tuesday: 7:00 AM – 7:00 PM | Wednesday: 7:00 AM – 7:00 PM | Thursday: 7:00 AM – 7:00 PM | Friday: 7:00 AM – 7:00 PM | Saturday: 7:00 AM – 7:00 PM | Sunday: 7:00 AM – 7:00 PM
GreenWorks Inspections & Engineering
5100 Westheimer Rd #200, Houston, TX 77056
Monday: 7:00 AM – 8:00 PM | Tuesday: 7:00 AM – 8:00 PM | Wednesday: 7:00 AM – 8:00 PM | Thursday: 7:00 AM – 8:00 PM | Friday: 7:00 AM – 8:00 PM | Saturday: 7:00 AM – 8:00 PM | Sunday: 7:00 AM – 8:00 PM
4.9 ★
705 reviews
IAQ Environmental
5200 W Loop S Suite 202 B, Bellaire, TX 77401
Monday: Open 24 hours | Tuesday: Open 24 hours | Wednesday: Open 24 hours | Thursday: Open 24 hours | Friday: 12:00 AM – 5:00 PM | Saturday: Closed | Sunday: Open 24 hours
A-Action Home Inspection Houston
10718 Russett Dr, Houston, TX 77042
Monday: 8:00 AM – 8:00 PM | Tuesday: 8:00 AM – 8:00 PM | Wednesday: 8:00 AM – 8:00 PM | Thursday: 8:00 AM – 8:00 PM | Friday: 8:00 AM – 8:00 PM | Saturday: 7:00 AM – 5:00 PM | Sunday: 7:00 AM – 5:00 PM
5 ★
2547 reviews
Foresight Engineering and Inspections, LLC.
12655 Whittington Dr #440204, Houston, TX 77077
Monday: 7:00 AM – 9:00 PM | Tuesday: 7:00 AM – 9:00 PM | Wednesday: 7:00 AM – 9:00 PM | Thursday: 7:00 AM – 9:00 PM | Friday: 7:00 AM – 9:00 PM | Saturday: 7:00 AM – 9:00 PM | Sunday: 10:00 AM – 7:00 PM
4.4 ★
53 reviews
Braun Intertec Corporation
10075 Windfern Rd, Houston, TX 77064
Monday: 8:00 AM – 5:00 PM | Tuesday: 8:00 AM – 5:00 PM | Wednesday: 8:00 AM – 5:00 PM | Thursday: 8:00 AM – 5:00 PM | Friday: 8:00 AM – 5:00 PM | Saturday: Closed | Sunday: Closed
4.7 ★
3 reviews
GreenWorks Inspections & Engineering - Sugar Land TX
77 Sugar Creek Center Blvd Ste 600, Sugar Land, TX 77478
Monday: 7:00 AM – 8:00 PM | Tuesday: 7:00 AM – 8:00 PM | Wednesday: 7:00 AM – 8:00 PM | Thursday: 7:00 AM – 8:00 PM | Friday: 7:00 AM – 8:00 PM | Saturday: 8:00 AM – 8:00 PM | Sunday: 8:00 AM – 8:00 PM
5 ★
228 reviews
Neptune Mold Solutions
17350 TX-249 Ste 220 #10793, Houston, TX 77064
Monday: 7:00 AM – 7:00 PM | Tuesday: 7:00 AM – 7:00 PM | Wednesday: 7:00 AM – 7:00 PM | Thursday: 7:00 AM – 7:00 PM | Friday: 7:00 AM – 7:00 PM | Saturday: Closed | Sunday: Closed
5 ★
79 reviews
Rapid Response Mold Testing of Houston
17117 Westheimer Rd Suite 36, Houston, TX 77082
Monday: 9:00 AM – 5:00 PM | Tuesday: 9:00 AM – 5:00 PM | Wednesday: 9:00 AM – 5:00 PM | Thursday: 9:00 AM – 5:00 PM | Friday: 9:00 AM – 5:00 PM | Saturday: Closed | Sunday: Closed
Auxilium Environmental
13526 Lakecrest Dr, Cypress, TX 77429
Monday: 8:00 AM – 6:00 PM | Tuesday: 8:00 AM – 6:00 PM | Wednesday: 8:00 AM – 6:00 PM | Thursday: 8:00 AM – 6:00 PM | Friday: 8:00 AM – 6:00 PM | Saturday: 8:00 AM – 6:00 PM | Sunday: 8:00 AM – 6:00 PM
4.8 ★
17 reviews
2inspect
6920 Brisbane Ct suite 239, Sugar Land, TX 77479
Monday: 7:00 AM – 10:00 PM | Tuesday: 7:00 AM – 10:00 PM | Wednesday: 7:00 AM – 10:00 PM | Thursday: 7:00 AM – 10:00 PM | Friday: 7:00 AM – 10:00 PM | Saturday: 7:00 AM – 10:00 PM | Sunday: 7:00 AM – 10:00 PM
5 ★
246 reviews
AdvantaClean of Houston West
20770 Westheimer Pkwy #506, Katy, TX 77450
Monday: Open 24 hours | Tuesday: Open 24 hours | Wednesday: Open 24 hours | Thursday: Open 24 hours | Friday: Open 24 hours | Saturday: Open 24 hours | Sunday: Open 24 hours
4.5 ★
24 reviews
Elite Disaster Restoration
1711 Brookside Pine Ln, Kingwood, TX 77345
Monday: Open 24 hours | Tuesday: Open 24 hours | Wednesday: Open 24 hours | Thursday: Open 24 hours | Friday: Open 24 hours | Saturday: Open 24 hours | Sunday: Open 24 hours
5 ★
22 reviews
Good Friday Inspections | Home Inspector Kingwood | Real Estate Inspection Service Atascocita
4503 Argonne Woods Dr, Porter, TX 77365
Monday: 8:00 AM – 5:00 PM | Tuesday: 8:00 AM – 5:00 PM | Wednesday: 8:00 AM – 5:00 PM | Thursday: 8:00 AM – 5:00 PM | Friday: 8:00 AM – 5:00 PM | Saturday: 9:00 AM – 4:00 PM | Sunday: Closed
5 ★
27 reviews
National Property Inspections Cypress
26314 Millies Creek Ln, Cypress, TX 77433
Monday: 8:00 AM – 7:00 PM | Tuesday: 8:00 AM – 7:00 PM | Wednesday: 8:00 AM – 7:00 PM | Thursday: 8:00 AM – 7:00 PM | Friday: 8:00 AM – 7:00 PM | Saturday: 9:00 AM – 3:00 PM | Sunday: Closed
5 ★
18 reviews
A Quality Home Inspector
6210 Forest Glade Dr, Richmond, TX 77469
Monday: 8:00 AM – 8:00 PM | Tuesday: 8:00 AM – 8:00 PM | Wednesday: 8:00 AM – 8:00 PM | Thursday: 8:00 AM – 8:00 PM | Friday: 8:00 AM – 8:00 PM | Saturday: 8:00 AM – 8:00 PM | Sunday: 8:00 AM – 8:00 PM
5 ★
5 reviews
A-Pro Home Inspection Tomball
14090 Farm to Market 2920 g151, Tomball, TX 77357
Monday: Open 24 hours | Tuesday: Open 24 hours | Wednesday: Open 24 hours | Thursday: Open 24 hours | Friday: Open 24 hours | Saturday: Open 24 hours | Sunday: Open 24 hours
4.9 ★
140 reviews
GreenWorks Inspections & Engineering - The Woodlands TX
2001 Timberloch Pl #500, The Woodlands, TX 77380
Monday: 7:00 AM – 8:00 PM | Tuesday: 7:00 AM – 8:00 PM | Wednesday: 7:00 AM – 8:00 PM | Thursday: 7:00 AM – 8:00 PM | Friday: 7:00 AM – 8:00 PM | Saturday: 8:00 AM – 8:00 PM | Sunday: 8:00 AM – 8:00 PM
5 ★
96 reviews
Frequently Asked Questions
How much does radon testing cost in Texas?
Professional radon testing typically costs $175 to $350. Short-term tests (48-96 hours) are used for real estate transactions. Long-term tests (90+ days) provide the most accurate annual average. The EPA recommends professional testing over DIY kits for real estate transactions, though DIY kits ($20-$40) are available at hardware stores. TCEQ publishes county-level radon data for Texas.
Why is radon especially concerning in Texas?
Texas has varying radon levels depending on geology. Measurable radon occurs statewide, including in metro areas, with higher readings more commonly mapped in Hill Country and granite/limestone geology due to bedrock composition. TCEQ considers radon a public health concern and publishes county-level radon data.
Are radon testers required to be certified in Texas?
Texas does not mirror every state's radon-specific license scheme; TCEQ's consumer radon materials and professional organizations like the National Radon Proficiency Program (NRPP) or National Radon Safety Board (NRSB) point homeowners toward certified measurement professionals. For real estate transactions, use a certified professional so the report meets common lender and liability expectations.
What happens if my Texas home has high radon levels?
If radon levels exceed 4 pCi/L, the EPA and TCEQ recommend installing a radon mitigation system. Sub-slab depressurization is the most effective method and typically costs $1,000 to $2,000. Use an experienced mitigator—often NRPP- or NRSB-listed—and expect post-mitigation testing. Mitigation commonly reduces levels by up to 99%.
When should I test for radon in my Texas home?
TCEQ recommends testing all homes, especially where geology suggests higher potential. Test when buying or selling, after major renovations affecting the foundation, or if you have never tested. Testing during cooler months (November through March) with windows closed provides the most representative results. Re-test every 2 years or after major changes to the home.