If you’re a homeowner in towns like Newark, Montclair, or Hackensack, your radon mitigation system plays a critical role in keeping indoor radon levels low. But like any mechanical system, it won’t run perfectly forever. Recognizing the early warning signs of a problem can help you take action quickly, before elevated radon levels become a serious concern for you and your family.
How Long Do Radon Mitigation Systems Last Before Needing Repair?
Most radon mitigation systems are designed to be durable, but they do require attention over time. The piping and structural components can hold up for decades when properly installed. The radon fan, however, is the component most likely to need repair or replacement first.
A radon fan runs continuously, 24 hours a day, 365 days a year, which means it takes on considerable wear over time. Most high-quality fans last between 5 and 10 years, though factors like moisture levels and soil conditions beneath your foundation can influence that timeline. Homeowners in towns like Parsippany, Flemington, and Summit should keep this in mind, as local ground conditions vary across Northern and Central New Jersey.
Rather than waiting for a complete system failure, consider scheduling a professional inspection once your fan reaches the 7- to 10-year range. A certified technician can spot early signs of wear and help you avoid a situation where radon levels quietly climb back above the EPA’s recommended action level of 4.0 pCi/L.
How Do I Know If My Radon Mitigation System Is Still Working?
There are several straightforward ways to check whether your radon mitigation system is functioning properly. Homeowners across Bergen County, Morris County, and beyond should get familiar with these indicators so potential issues don’t go unnoticed.
- Check the U-tube manometer. This small gauge, typically mounted on the system piping, shows whether your fan is creating suction. If the fluid levels are even on both sides, your fan may not be operating correctly.
- Listen for the fan. A properly running radon fan produces a low, steady hum. If you don’t hear anything at all when standing near the unit, the fan may have stopped working entirely.
- Test your radon levels. The most reliable way to confirm your system is doing its job is to conduct a radon test. If results come back at or above 4.0 pCi/L, something in the system likely needs attention.
- Look for visible damage. Cracked PVC piping, disconnected fittings, or damage to the exterior components of your system can all compromise performance, especially after harsh New Jersey winters.
- Monitor your energy bills. A fan that’s struggling or failing may draw inconsistent power. While subtle, an unusual change in your utility costs can sometimes signal an issue.
What Does It Mean If My Radon Fan Is Making Strange Noises?
If your radon fan starts producing rattling, grinding, or humming sounds that are louder than usual, it’s typically a sign that the internal bearings are wearing out. This is one of the most common issues homeowners in areas like Wayne, Chatham, and Bernardsville report as their systems age.
A slight hum is normal, but any noticeable change in sound deserves attention. Grinding or scraping noises often indicate that the motor is under stress and approaching the end of its operational life. Ignoring these sounds can lead to a complete fan failure, which means your system would stop pulling radon gas from beneath your home entirely.
In some cases, the noise may stem from vibration against mounting brackets or nearby surfaces, which is a simpler fix. However, the only way to determine the exact cause is to have a certified technician evaluate the unit. At Advanced Radon Services, we use high-efficiency, quiet fans, so if yours has become noticeably loud, it’s worth getting it looked at sooner rather than later.
Why Are My Radon Levels High Even With a Mitigation System Installed?
Discovering elevated radon levels when you already have a system in place can be frustrating. For homeowners in communities like Nutley, Sparta, and Phillipsburg, there are several reasons this can happen, and most are correctable with the right professional support.
- Fan failure. If the radon fan has stopped working, suction beneath the slab is lost and radon gas can re-enter the home freely. This is the most common culprit behind rising levels.
- Foundation changes or new cracks. Settling, shifting soil, and seasonal freeze-thaw cycles common across Northern New Jersey can create new entry points in your foundation that the current system wasn’t designed to address.
- Improper original installation. Not all mitigation systems are created equal. If the system wasn’t installed by a certified professional, the design may not have been adequate for your home’s specific conditions from the start.
- Changes to the home’s structure. Renovations, additions, or even finishing a basement can alter the airflow dynamics in your home and reduce the effectiveness of an existing system.
- Increased soil radon concentration. Radon levels in the ground can shift over time. What worked five years ago in your Hunterdon County or Sussex County home may need to be re-evaluated as conditions change.
How Often Should a Radon System Be Inspected or Tested?
Routine testing and periodic inspections are the most reliable way to confirm your system is performing as expected. For homeowners throughout Somerset County, Passaic County, Union County, and Warren County, staying on a consistent schedule helps catch problems before radon levels become a health concern.
- Test radon levels every two years. The EPA recommends testing your home at least every two years, even with an active mitigation system in place. This confirms that levels remain well below 4.0 pCi/L.
- Test after any major home renovation. If you’ve added square footage, finished a basement, or altered your foundation in any way, a follow-up radon test is strongly recommended.
- Visually inspect your system seasonally. Take a quick look at the manometer, piping, and exterior components at least once per season. Winter storms and summer heat in New Jersey can both take a toll on exposed equipment.
- Schedule a professional inspection every 3 to 5 years. A certified technician can evaluate fan performance, check for internal wear, inspect seal integrity, and ensure everything meets current AARST and NRPP standards.
- Test immediately if you notice warning signs. Strange fan noises, a flat manometer reading, or a musty smell in the basement should all prompt an immediate radon test and professional evaluation.
Keep Your Home Protected and Schedule a Radon System Checkup Today
Your radon mitigation system is only effective when every component is working as it should. If you’ve noticed any of the warning signs discussed above, or if it’s simply been a while since your last inspection, now is the time to act. Advanced Radon Services proudly serves homeowners across Northern and Central New Jersey. Reach out to our team today to schedule an inspection or radon system repair.
