Best Radon Testing in Phoenix, AZ
Compare 22 local radon testing providers in Phoenix. Verified listings with real contact info.
22 services listed
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MSE Environmental
530 E McDowell Rd #107-205, Phoenix, AZ 85004
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: 8:00 AM – 5:00 PM | Sunday: Closed
4.1 ★
7 reviews
Spectrum Environmental Consultants
3101 N Central Ave Ste 183 #1236, Phoenix, AZ 85012
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 ★
4 reviews
Zona Restoration
1724 W 10th Pl #1, Tempe, AZ 85281
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 ★
465 reviews
Arizona Foundation Solutions LLC
3125 S 52nd St, Tempe, AZ 85282
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
4.8 ★
1860 reviews
Advantage Inspection Service
8433 N Black Cyn Hwy #100, Phoenix, AZ 85021
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 ★
3849 reviews
1st Priority Inspections
832 N Grace St, Scottsdale, AZ 85257
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: Closed
5 ★
44 reviews
Envision3 Group, Inc
15066 S 40th Pl, Phoenix, AZ 85044
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
3.7 ★
3 reviews
AmeriSpec Inspection Services
4605 E Chandler Blvd, Phoenix, AZ 85048
Monday: 7:00 AM – 5:00 PM | Tuesday: 7:00 AM – 5:00 PM | Wednesday: 7:00 AM – 5:00 PM | Thursday: 7:00 AM – 5:00 PM | Friday: 7:00 AM – 5:00 PM | Saturday: 7:00 AM – 2:00 PM | Sunday: Closed
4.9 ★
62 reviews
AJF Inspections
14201 Hayden Rd, Scottsdale, AZ 85260
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: 8:00 AM – 5:00 PM | Sunday: 8:00 AM – 5:00 PM
4.9 ★
3934 reviews
Perfection Home Inspections
1042 E Fairbrook Cir, Mesa, AZ 85203
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: 8:00 AM – 5:00 PM | Sunday: Closed
5 ★
17 reviews
Checklist Inspections
90 N William Dillard Dr suite C-109, Gilbert, AZ 85233
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: 8:00 AM – 6:00 PM | Sunday: 9:00 AM – 3:00 PM
4.9 ★
1545 reviews
Pillar To Post Home Inspectors - Randy Hogenmiller
3318 E Hononegh Dr, Phoenix, AZ 85050
4.9 ★
102 reviews
Clark Booth Property Inspector
1232 W Sand Dune Dr, Gilbert, AZ 85233
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: Closed
4.9 ★
205 reviews
Inspect-It 1st, Greater Phoenix Metro
13197 N 104th St, Scottsdale, AZ 85260
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: 8:00 AM – 5:00 PM | Sunday: 8:00 AM – 5:00 PM
4.8 ★
22 reviews
Inspect The Best
15029 N Thompson Peak Pkwy Suite #B-111 #104, Scottsdale, AZ 85260
Monday: 8:30 AM – 9:00 PM | Tuesday: 8:30 AM – 9:00 PM | Wednesday: 8:30 AM – 9:00 PM | Thursday: 8:30 AM – 9:00 PM | Friday: 8:30 AM – 9:00 PM | Saturday: 8:30 AM – 9:00 PM | Sunday: 9:00 AM – 9:00 PM
5 ★
500 reviews
Eurofins Built Environment Testing- Phoenix
1501 W Knudsen Dr, Phoenix, AZ 85027
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
4.8 ★
6 reviews
Safe House Home Inspectors Llc
137 E Elliot Rd, Gilbert, AZ 85234
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: 10:00 AM – 2:00 PM | Sunday: Closed
4.9 ★
122 reviews
Arizona Radon Mitigation
1324 S 172nd Ln, Goodyear, AZ 85338
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
5 ★
10 reviews
Good Look Home Inspections LLC
6520 N 173rd Dr, Waddell, AZ 85355
Monday: 7:30 AM – 7:00 PM | Tuesday: 7:30 AM – 7:00 PM | Wednesday: 7:30 AM – 7:00 PM | Thursday: 7:30 AM – 7:00 PM | Friday: 7:30 AM – 7:00 PM | Saturday: 7:30 AM – 7:00 PM | Sunday: Closed
5 ★
911 reviews
Western States Home Inspections
20598 S 187th Way, Queen Creek, AZ 85142
Monday: 7:00 AM – 6:00 PM | Tuesday: 7:00 AM – 6:00 PM | Wednesday: 7:00 AM – 6:00 PM | Thursday: 7:00 AM – 6:00 PM | Friday: 7:00 AM – 6:00 PM | Saturday: 7:00 AM – 3:00 PM | Sunday: Closed
5 ★
405 reviews
Sullivan Inspection Group
26610 196th St, Queen Creek, AZ 85142
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 ★
47 reviews
Affordable Radon Southwest
42813 N 43rd Dr, New River, AZ 85087
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
4.9 ★
33 reviews
Frequently Asked Questions
How much does radon testing cost in Arizona?
Professional radon testing in Arizona typically costs $175 to $350. Short-term tests (48-96 hours) are common in real estate transactions; long-term tests (90+ days) better reflect annual averages. ARRA encourages following EPA measurement guidance; for transactions, many buyers prefer NRPP- or NRSB-certified testers even though Arizona does not license radon testers separately.
Why is radon especially concerning in Arizona?
Radon risk in Arizona is spatially variable: statewide averages are relatively low, but parts of Coconino and Yavapai counties show higher indoor radon because of regional geology and uranium-bearing formations. Test your specific home: basement and slab-on-grade buildings can still exceed EPA's 4 pCi/L action level. ARRA publishes radon outreach materials and supports EPA's Map of Radon Zones for Arizona.
Are radon testers required to be certified in Arizona?
Arizona does not require a standalone state radon-measurement license, but ARRA strongly recommends hiring testers who hold national credentials from NRPP or NRSB so chain-of-custody and closed-building conditions meet EPA protocols—especially for real estate.
What happens if my Arizona home has high radon levels?
If radon exceeds EPA's 4 pCi/L action level, EPA recommends installing a qualified radon mitigation system (often active soil depressurization). Typical installed costs run about $1,000-$2,500 depending on foundation type and finish. Arizona does not operate a separate state radon-mitigator certification like some states—choose an NRPP- or NRSB-certified mitigator and confirm the firm holds an Arizona Registrar of Contractors license for the construction work. Mitigation commonly lowers radon by up to 99% when designed correctly.
When should I test for radon in my Arizona home?
ARRA recommends that every Arizona homeowner test at least once, with higher priority in Coconino, Yavapai, and other geologically favorable areas. Also test when buying or selling, after major foundation or HVAC changes, or if you have never tested. Closed-building winter tests (November–March) usually give the most representative short-term snapshots; re-test every two years or after significant renovations.