Homeowners across Fort Collins, Loveland, and Timnath often assume that a neighbor’s radon testing results apply to their home as well. If the house next door came back with low levels, it can feel like there is nothing to worry about. But radon levels vary dramatically from one home to the next, even along the same street. That’s exactly why it’s worth understanding what really influences radon levels and why testing your own home is the only way to know for sure.
My Neighbor’s Radon Test Was Fine, Do I Still Need to Test My House?
Radon is a naturally occurring radioactive gas that forms underground and moves upward through the soil beneath your home. Because soil composition, foundation construction, and overall grading differ from property to property, two homes sitting side by side in Fort Collins can produce completely different radon testing results. One home may measure well below the EPA’s action level of 4.0 pCi/L while the home right next door exceeds it significantly.
In Colorado, approximately 1 in 2 homes test above that threshold, making individual testing critical for every household. Your neighbor’s results reflect the unique conditions of their property, including their foundation type, ventilation setup, and the specific geology beneath their lot.
The only way to know your home’s actual radon levels is through accurate radon testing performed in your own living space. Whether you’re in Loveland, Timnath, or anywhere else in the surrounding area, professional testing gives you the precise data you need to make informed decisions about protecting your family’s health and well-being.
Does Living in a Low-Radon Area Mean My Home Is Safe?
Regional averages and zone maps can give a general picture, but they do not reflect what is happening inside your specific home. In Northern Colorado, even neighborhoods that appear to have lower overall radon readings have produced individual test results well above the EPA’s action level. Several factors create this home-to-home variation:
- Soil uranium content shifts over short distances. The geology beneath your lot can differ from your neighbor’s by just a few feet, creating entirely different radon concentrations in the soil feeding into your foundation.
- Your home’s construction creates a unique pressure environment. Heating systems, exhaust fans, and the overall tightness of your home’s envelope all affect how much soil gas gets drawn indoors, regardless of what the area average suggests.
- Local terrain and water tables influence radon movement. Homes near the foothills around Fort Collins or Loveland sit on varied geological formations that channel radon differently depending on elevation, drainage, and seasonal water table changes.
- Area classifications rely on limited sampling. Zone designations are based on a selection of homes tested in a given region, not on a complete survey. Your home may not share the characteristics of those that were sampled.
Does the Age of a Home Affect Its Radon Levels?
Many homeowners in Fort Collins and Loveland assume that newer construction is less likely to have elevated radon. While building codes in Colorado now require radon resistant new construction features in many residential builds, these passive systems are not always enough on their own to keep levels below the EPA’s recommended threshold. Without activation, a passive pipe system may only partially reduce radon entry.
Older homes come with their own set of considerations. Foundations settle and develop cracks over time, and aging sump pits, utility penetrations, and deteriorating vapor barriers in crawl spaces can all create additional pathways for radon to enter. Homes built before modern radon awareness often lack any form of mitigation infrastructure.
Regardless of when your home was built, radon testing is the only reliable way to determine your actual exposure. If levels come back elevated, a professionally installed radon mitigation system can bring concentrations down to well within acceptable limits, no matter the age of the structure.
How Does Radon Get Into a House?
Radon travels from the soil into your home through the path of least resistance. Because most homes in Fort Collins, Loveland, and Timnath have a lower air pressure indoors than what exists in the surrounding soil, the home essentially pulls radon gas inward. Here are the most common entry points:
- Cracks in foundation slabs and basement floors. Even hairline cracks that are barely visible can allow significant amounts of radon to enter your home over time.
- Gaps around utility penetrations. Openings where plumbing pipes, electrical conduits, and water lines pass through the foundation are frequent entry points that often go unnoticed.
- Sump pump basins. Uncovered or poorly sealed sump pits act as direct channels between the soil beneath your home and your indoor air.
- Crawl spaces with exposed soil. Homes with unsealed crawl spaces allow radon to move freely from the ground into the living area above, particularly when ventilation is limited.
- Construction joints and mortar gaps. The seams where walls meet the floor slab, as well as deteriorating mortar in block foundations, provide consistent pathways for radon entry.
How Often Should You Test Your Home for Radon?
Radon levels are not static. They shift with the seasons, fluctuate based on home renovations, and can change as the soil and foundation conditions around your property evolve. A single test provides a snapshot, but ongoing awareness is what keeps your household informed. Here is a general testing schedule to follow:
- Test every two years at a minimum. The EPA recommends retesting at least every two years to account for natural changes in soil conditions and shifts in how your home interacts with the ground beneath it.
- Retest after any major renovation or structural work. Adding a room, finishing a basement, replacing HVAC systems, or altering your home’s ventilation can change the pressure dynamics that influence radon entry.
- Test again after installing a radon mitigation system. Post-installation testing confirms that your system is performing as expected and keeping radon levels below the recommended action level of 4.0 pCi/L.
- Test when buying or selling a home. Real estate transactions in Fort Collins, Loveland, and Timnath frequently involve radon testing as part of the inspection process, and current results carry more weight than outdated ones.
- Consider continuous radon monitoring. A continuous radon monitor provides real-time data and long-term tracking, giving you a detailed picture of how levels in your home change throughout the year.
Protect Your Home with Professional Radon Testing
Every home in Northern Colorado tells a different radon story, and the only way to know yours is through professional radon testing tailored to your property. Evergreen Radon & Construction Services provides precise, certified testing and mitigation for homeowners throughout Fort Collins, Loveland, and Timnath. Reach out to our team today to take the first step toward understanding your home’s radon levels.