Chandler, AZ Radon Mitigation and Testing

Q: What is the average radon level in Chandler, AZ?

Based on 3 user-submitted tests, the average radon level is 4.00 pCi/L.

Q: What EPA Radon Zone is Chandler in?

Chandler is in Maricopa County, EPA Zone 2.

Q: How much does radon mitigation cost in Chandler?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Avg: 4.00 pCi/L

Maricopa County

EPA Zone 2

3 user tests

Located in Maricopa County within the Phoenix Metro, Chandler shows an average radon level of 4.0 pCi/L, which meets the EPA action threshold exactly. The city's desert location atop alluvial basin deposits and predominantly slab-on-grade construction across multiple zip codes (85224-85286) creates generally moderate radon conditions. While current readings are at the threshold, continued testing remains important for homeowners throughout Chandler's expanding neighborhoods.

4.00

pCi/L average

Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Chandler, AZ. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Chandler, AZ Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Chandler, AZ Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Chandler, Arizona Radon Levels

User-submitted radon test readings from homes in the Chandler area.

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Chandler, AZ	0-20 Years	Partial Basement	May 2025
4 pCi/L	Chandler, AZ	21-50 Years	No Basement/All Slab	Aug 2024
4 pCi/L	Chandler, AZ	0-20 Years	—	Dec 2023

Have a radon test result for Chandler? Submit your reading to help other homeowners.

Chandler Radon Facts

Key details about the radon risk profile for Chandler and the 85224 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Maricopa County, AZ

Zip Code

85224

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

4.00 pCi/L

User Tests Submitted

Chandler and the 85224 zip code are located in Maricopa County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Chandler, AZ

What is the average radon level in Chandler, AZ?

Based on 3 user-submitted tests, the average radon level in Chandler is 4.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Chandler in?

Chandler and the 85224 zip code are in Maricopa County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Chandler?

Radon mitigation in Chandler typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Chandler?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in Arizona

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Prescott	6.79 pCi/L	14
Scottsdale	7.75 pCi/L	12
Phoenix	5.40 pCi/L	10
Mesa	6.40 pCi/L	5
Flagstaff	6.00 pCi/L	5
Tucson	5.25 pCi/L	4
Payson	6.67 pCi/L	3
Glendale	6.50 pCi/L	2
Peoria	3.00 pCi/L	2
Prescott Valley	4.00 pCi/L	1
Gilbert	3.00 pCi/L	1
Tempe	3.00 pCi/L	1