Hacienda Heights, CA Radon Mitigation and Testing

Q: What EPA Radon Zone is Hacienda Heights in?

Hacienda Heights is in Los Angeles County, EPA Zone 2.

Q: How much does radon mitigation cost in Hacienda Heights?

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

Los Angeles County

EPA Zone 2

Located in Los Angeles County within the sprawling Los Angeles Metro, Hacienda Heights currently lacks comprehensive radon testing data. While California generally shows lower radon potential than other regions, pockets of elevated levels can occur due to local geological variations and housing characteristics. Homeowners in the 91745 zip code should consider radon testing, especially in homes with basements or lower-level living areas.

Hacienda Heights, CA Radon Mitigation

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

Hacienda Heights, CA Radon Testing

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

Hacienda Heights Radon Facts

Key details about the radon risk profile for Hacienda Heights and the 91745 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Los Angeles County, CA

Zip Code

91745

Predicted Screening Level

2–4 pCi/L (Zone 2)

Hacienda Heights and the 91745 zip code are located in Los Angeles 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 Hacienda Heights, CA

What EPA Radon Zone is Hacienda Heights in?

Hacienda Heights and the 91745 zip code are in Los Angeles 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 Hacienda Heights?

Radon mitigation in Hacienda Heights 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 Hacienda Heights?

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 California

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

City	Avg User Radon Level	Submissions
Los Angeles	7.83 pCi/L	6
Mammoth Lakes	10.80 pCi/L	5
San Jose	4.20 pCi/L	5
Rancho Palos Verdes	8.00 pCi/L	4
Woodland Hills	7.67 pCi/L	3
South Lake Tahoe	6.33 pCi/L	3
Palos Verdes Peninsula	6.00 pCi/L	3
Bishop	5.67 pCi/L	3
Sacramento	4.33 pCi/L	3
Oakland	3.33 pCi/L	3
Fresno	10.00 pCi/L	2
Davis	8.00 pCi/L	2
Palo Alto	6.50 pCi/L	2
Studio City	6.50 pCi/L	2
Menlo Park	5.00 pCi/L	2
Truckee	5.00 pCi/L	2
Walnut Creek	4.00 pCi/L	2
San Diego	3.50 pCi/L	2
San Francisco	3.50 pCi/L	2
Belmont	20.00 pCi/L	1