Gilbert, AZ Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 3.00 pCi/L.

Q: What EPA Radon Zone is Gilbert in?

Gilbert is in Maricopa County, EPA Zone 2.

Q: How much does radon mitigation cost in Gilbert?

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

Avg: 3.00 pCi/L

Maricopa County

EPA Zone 2

1 user test

This rapidly growing Phoenix Metro suburb in Maricopa County shows an average radon level of 3.0 pCi/L, which falls within EPA recommended ranges but still warrants homeowner attention. Gilbert's desert basin geology and mix of newer subdivisions with slab-on-grade foundations create variable radon conditions across zip codes 85233-85298. Despite being below the 4.0 pCi/L threshold, individual homes can vary significantly from community averages.

3.00

pCi/L average

Below EPA Action Level

Based on 1 user-submitted radon test for homes in Gilbert, AZ. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Gilbert, AZ Radon Mitigation

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

Gilbert, AZ Radon Testing

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

Gilbert, Arizona Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
3 pCi/L	Gilbert, AZ	0-20 Years	—	Feb 2023

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

Gilbert Radon Facts

Key details about the radon risk profile for Gilbert and the 85233 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Maricopa County, AZ

Zip Code

85233

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

3.00 pCi/L

User Tests Submitted

Gilbert and the 85233 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 Gilbert, AZ

What is the average radon level in Gilbert, AZ?

Based on 1 user-submitted test, the average radon level in Gilbert is 3.00 pCi/L. This is below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.

What EPA Radon Zone is Gilbert in?

Gilbert and the 85233 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 Gilbert?

Radon mitigation in Gilbert 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 Gilbert?

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