Maple Falls, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Maple Falls in?

Maple Falls is in Whatcom County, EPA Zone 3.

Q: How much does radon mitigation cost in Maple Falls?

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

Whatcom County

EPA Zone 3

Maple Falls, WA resides in Whatcom 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. Testing is recommended for all homes in the 98266 zip code area.

Maple Falls, WA Radon Mitigation

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

Maple Falls, WA Radon Testing

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

Maple Falls Radon Facts

Key details about the radon risk profile for Maple Falls and the 98266 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Whatcom County, WA

Zip Code

98266

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Maple Falls and the 98266 zip code are located in Whatcom County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Maple Falls, WA

What EPA Radon Zone is Maple Falls in?

Maple Falls and the 98266 zip code are in Whatcom 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 Maple Falls?

Radon mitigation in Maple Falls 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 Maple Falls?

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 Washington

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

City	Avg User Radon Level	Submissions
Vancouver	6.56 pCi/L	9
Kent	3.60 pCi/L	5
Seattle	5.25 pCi/L	4
Olympia	5.00 pCi/L	4
Bellevue	3.75 pCi/L	4
Spokane	11.67 pCi/L	3
Camas	8.00 pCi/L	3
Centralia	7.00 pCi/L	3
Bellingham	4.50 pCi/L	2
Kirkland	4.50 pCi/L	2
Washougal	8.00 pCi/L	1
Ridgefield	5.00 pCi/L	1
Moses Lake	No submissions	0