Star, NC Radon Mitigation and Testing

Q: What EPA Radon Zone is Star in?

Star is in Montgomery County, EPA Zone 3.

Q: How much does radon mitigation cost in Star?

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

Montgomery County

EPA Zone 3

Located in Montgomery County among North Carolina's Uwharrie Mountains, Star sits where metamorphic bedrock and residual clay soils create moderate radon potential. Current testing data for zip code 27356 is limited, encouraging homeowners to establish individual baseline readings. The community's mix of older mill village homes and newer rural residential construction presents varied foundation types that can influence radon accumulation patterns.

Star, NC Radon Mitigation

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

Star, NC Radon Testing

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

Star Radon Facts

Key details about the radon risk profile for Star and the 27356 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Montgomery County, NC

Zip Code

27356

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Star and the 27356 zip code are located in Montgomery 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 Star, NC

What EPA Radon Zone is Star in?

Star and the 27356 zip code are in Montgomery 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 Star?

Radon mitigation in Star 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 Star?

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 North Carolina

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

City	Avg User Radon Level	Submissions
Murphy	12.83 pCi/L	6
Blowing Rock	10.17 pCi/L	6
Brevard	7.50 pCi/L	4
Cary	5.00 pCi/L	4
Highlands	4.50 pCi/L	4
Mooresville	4.00 pCi/L	4
Banner Elk	9.33 pCi/L	3
Charlotte	7.33 pCi/L	3
Denver	4.33 pCi/L	3
Hendersonville	9.00 pCi/L	2
Wake Forest	4.50 pCi/L	2
Apex	3.50 pCi/L	2
Huntersville	3.50 pCi/L	2
Raleigh	9.00 pCi/L	1
Fayetteville	5.00 pCi/L	1
Waxhaw	4.00 pCi/L	1
Chapel Hill	3.00 pCi/L	1
Clayton	No submissions	0
Fuquay Varina	No submissions	0
Holly Springs	No submissions	0