2026-02-23 · 4 min read
Radon Mitigation Cost in North Dakota (2026)
North Dakota has one of the highest radon rates in the country — uranium-bearing glacial deposits blanket the state. Mitigation costs $950–$2,000 for most homes.
Radon in North Dakota: A Serious Problem
North Dakota is one of the most radon-affected states in the country. Uranium-bearing glacial till — deposited across the entire state when glaciers retreated 10,000 years ago — releases radon statewide. There are no low-risk pockets in North Dakota; every county has elevated readings.
The state health department estimates more than half of tested homes exceed the EPA action level of 4.0 pCi/L. If you live in North Dakota and haven't tested, assume elevated until proven otherwise.
Cost by Foundation Type
Basement: $950–$1,800
North Dakota's frigid winters make full basements nearly universal. Most homes have unfinished or lightly finished basements — these are typically straightforward to mitigate.
- Unfinished basement: $950–$1,400
- Finished basement: $1,300–$1,800
Slab-on-Grade: $900–$1,600
Found in some commercial-adjacent residential and newer construction, particularly in Bismarck and Fargo.
North Dakota-Specific Factors
Glacial till: North Dakota's sub-slab material is typically glacial clay and till — these have poor sub-slab communication, meaning suction from a single hole doesn't travel as far. Multiple suction points or higher-suction fans are more commonly needed than in sandy or gravely sub-slab states.
Cold climate: Tightly sealed homes trap radon efficiently. North Dakota's extreme winters mean buildings are sealed for 6+ months — maximizing indoor accumulation.
Small contractor market: North Dakota's sparse population means fewer contractors. Fargo and Bismarck have the most options. Rural areas may wait weeks for a certified contractor.
High success rate: On the positive side, North Dakota's sub-slab conditions — while difficult — respond well to properly sized systems. Most properly installed systems achieve levels below 2.0 pCi/L.
North Dakota Resources
- ND Dept of Environmental Quality: deq.nd.gov (search "radon")
- Verify NRPP: radonproficiency.org
- Verify NRSB: nrsb.org
Frequently Asked Questions
How bad is radon in North Dakota?
North Dakota is consistently among the top 5 highest-radon states in the US. Uranium-bearing glacial till deposited by the Laurentide ice sheet covers the state. The ND Dept of Health estimates more than 50% of tested North Dakota homes exceed the EPA action level.
How much does radon mitigation cost in North Dakota?
Expect $950–$1,800 for standard basement homes. North Dakota's small contractor market keeps some pricing competitive, but limited competition in rural areas can push costs higher.
Does North Dakota require radon contractor licensing?
North Dakota does not have a state radon contractor licensing program. Hire NRPP or NRSB certified contractors.
Find a Certified Mitigator Near You
Every contractor on RadonBase is NRPP or NRSB certified — mitigators only, no testers.
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