Sells, AZ Radon Mitigation and Testing

Q: What EPA Radon Zone is Sells in?

Sells is in Pima County, EPA Zone 2.

Q: How much does radon mitigation cost in Sells?

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

Pima County

EPA Zone 2

Located in Pima County on the Tohono O'odham Nation, Sells sits in Arizona's Sonoran Desert where volcanic and sedimentary bedrock typically produces moderate radon levels. Testing data for the 85634 zip code remains limited, though the arid climate and prevalent slab-on-grade construction generally result in lower indoor radon accumulation. Desert soils and minimal precipitation reduce radon transport compared to wetter climates.

Sells, AZ Radon Mitigation

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

Sells, AZ Radon Testing

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

Sells Radon Facts

Key details about the radon risk profile for Sells and the 85634 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Pima County, AZ

Zip Code

85634

Predicted Screening Level

2–4 pCi/L (Zone 2)

Sells and the 85634 zip code are located in Pima 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 Sells, AZ

What EPA Radon Zone is Sells in?

Sells and the 85634 zip code are in Pima 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 Sells?

Radon mitigation in Sells 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 Sells?

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