Matthews, NC Radon Levels

Q: What EPA Radon Zone is Matthews in?

Matthews is in Union County, EPA Zone 3.

Q: Why are radon readings shown from areas near Matthews?

No homeowner radon tests have been submitted for Matthews yet, so readings from the closest cities and the Union County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Matthews?

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

Check local Matthews radon levels and find certified testing and mitigation professionals to keep your home safe

Matthews, NC Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Union County, NC

Zip Code 28104

This Mecklenburg County suburb features predominantly newer residential developments with various foundation types common to the Charlotte Metro area. Radon testing data for the 28105 zip code remains limited, though the region's granite-based soils can support radon accumulation. Homeowners should conduct independent testing, particularly in homes with basements or crawl space foundations.

5.50

pCi/L area average

Above EPA Action Level

Union County average: 5.50 pCi/L, based on 6 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Matthews itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Matthews, NC Radon Mitigation

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

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Radon Readings Near Matthews, NC

No homeowner tests have been submitted for Matthews yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Charlotte	11.3 mi	7.33 pCi/L	3
Waxhaw	11.3 mi	4.00 pCi/L	1
Concord	22.3 mi	4.00 pCi/L	1
Huntersville	23.7 mi	3.50 pCi/L	2
Mount Holly	24.2 mi	3.00 pCi/L	1
Gastonia	27.9 mi	3.00 pCi/L	1
Cornelius	28.4 mi	4.00 pCi/L	1
Kannapolis	28.4 mi	7.00 pCi/L	1

Union County Radon Profile

Local geology places Union County in EPA Radon Zone 3, where predicted indoor radon averages fall below 2 pCi/L — though no county is risk-free. Homeowner-submitted tests from 1 city in Union County average 4.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Union County to test, as levels can differ between neighboring homes.

Radon FAQ for Matthews, NC

What EPA Radon Zone is Matthews in?

Matthews and the 28104 zip code are in Union 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.

Why are radon readings shown from areas near Matthews?

No homeowner radon tests have been submitted for Matthews yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Union County average—are the best available indicator of local conditions until Matthews homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Matthews?

Radon mitigation in Matthews 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 Matthews?

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.