If you own a home in Utah or you are thinking about buying or selling, radon should be on your radar. It is invisible, odorless, and surprisingly common in our area. The good news is that testing is simple and mitigation systems are highly effective. This guide breaks it down so you can make informed decisions and protect your home’s value.
What Is Radon?
Radon is a naturally occurring radioactive gas that forms when uranium in soil and rock breaks down. It rises through the ground and can enter homes through cracks in the foundation, gaps around pipes, sump pits, and even through concrete.
Because you cannot see or smell radon, the only way to know if it is present is to test for it.
Why Radon Is a Big Deal
Radon is not just a technical issue. It is a health issue.
Exposure to elevated radon levels over time is the second leading cause of lung cancer in the United States, behind smoking, according to the U.S. Environmental Protection Agency. For non-smokers, it is the leading cause.
The risk comes from breathing in radioactive particles that damage lung tissue over time. This is not about short-term exposure. It is about long-term, consistent exposure inside your home.
Is Radon Common in Utah?
Yes. Utah has many areas with elevated radon levels due to its geology.
The Utah Department of Environmental Quality has identified large portions of the state as having moderate to high radon potential. In practical terms, that means:
- You cannot assume a home is safe without testing
- New construction is not immune
- Homes next door to each other can have very different readings
How Radon Gets Into a Home
Radon enters at the lowest level of the home and gets trapped inside. Common entry points include:
- Foundation cracks
- Basement floors and walls
- Gaps around plumbing or electrical penetrations
- Sump pits or crawl spaces
- Construction joints
Once inside, it can accumulate to levels that are unsafe if not addressed.
How to Test for Radon
Testing is straightforward and affordable.
You have two main options:
1. Short-Term Tests
- Usually 2 to 7 days
- Good for quick screening (common in real estate transactions)
2. Long-Term Tests
- 90 days or more
- Provide a more accurate average exposure level
The U.S. Environmental Protection Agency recommends taking action if radon levels are 4.0 picocuries per liter (pCi/L) or higher.
What Happens If a Home Tests High?
This is where most people get nervous, but it is actually one of the more manageable issues in real estate.
If a home has elevated radon levels, the solution is typically a radon mitigation system.
How Radon Mitigation Systems Work
The most common system is called sub-slab depressurization. Here is how it works:
- A small hole is drilled into the concrete slab (usually in a basement or crawlspace)
- A pipe is inserted beneath the home
- A fan pulls radon gas from under the house
- The gas is safely vented above the roofline
This prevents radon from ever entering the living space.
Most systems are discreet. You will usually see a vertical PVC pipe running along an exterior wall with a small fan attached.
Cost and Value Considerations
Radon mitigation systems are one of the more cost-effective home improvements when it comes to health and resale value.
Typical ranges:
- Testing: $100 to $300
- Mitigation System: $800 to $2,500 depending on the home
From a real estate perspective:
- Buyers are increasingly aware of radon
- A home with a system already installed can be a selling advantage
- Fixing radon is often cheaper and simpler than negotiating a price reduction
Radon and Real Estate Transactions
In Utah, radon testing is common during the due diligence period.
Here is how it usually plays out:
- Buyer orders a radon test
- If levels are high, the buyer requests mitigation
- Seller installs a system or negotiates a credit
- Deal moves forward
This is not typically a deal killer. It is a solvable inspection item.
When Should You Test?
You should test your home if:
- You have never tested before
- You are buying or selling
- You have finished a basement
- You have installed new HVAC systems or changed airflow
- It has been more than 2 to 5 years since your last test
The Bottom Line
Radon is common, but it is also controllable.
Testing is simple. Mitigation is effective. And addressing it proactively protects both your health and your property value.
If you are buying, selling, or just want peace of mind, radon should be part of your plan.
Need Help Navigating This?
If you want guidance on testing, interpreting results, or negotiating repairs during a transaction, I can help you navigate it from both a health and real estate standpoint.
Reach out anytime and I will point you in the right direction.
