Gualala, CA Radon Levels
Check local Gualala radon levels and find certified testing and mitigation professionals to keep your home safe
Gualala, CA Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Mendocino County, CA
Zip Code
95445
Perched on coastal bluffs in Mendocino County where the Gualala River meets the Pacific, this scenic community sits on marine terraces over the San Andreas Fault zone. The area's housing includes coastal cottages, vacation homes, and retreat centers, many built on pier and beam foundations to accommodate the sloping terrain. Though radon testing data for zip code 95445 is currently limited, the complex coastal geology and varied foundation types make individual home testing advisable.
Gualala, CA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Gualala?
- 100% Free, No-Obligation Quotes
- Matches You with State-Licensed Mendocino County Pros
1-800-299-3578
Toll-free · Mon–Fri 8am–6pm ET
Radon FAQ for Gualala, CA
What EPA Radon Zone is Gualala in?
Gualala and the 95445 zip code are in Mendocino County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.
How much does radon mitigation cost in Gualala?
Radon mitigation in Gualala 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 Gualala?
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 in California with the most user-submitted radon test data, ranked by number of submissions.
| 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 |
| Bishop | 6.25 pCi/L | 4 |
| Oakland | 5.00 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 |
| Sacramento | 4.33 pCi/L | 3 |