Triangle Radon Defense Before & After Photos

Sometimes a radon mitigation system is installed, but the radon levels remain higher than expected. That's exactly what happened for this homeowner.

After receiving disappointing test results and becoming frustrated with the lack of professionalism from the company handling the testing, she contacted Triangle Radon Defense for a second opinion.

During our inspection, we found that the existing mitigation system was installed beneath a large, vented crawlspace with a loose, unsealed vapor barrier. Rather than creating a sealed collection area beneath the barrier, the original installer had simply extended multiple sections of 2-inch PVC beneath the plastic in an attempt to improve soil gas communication.

While creative, this approach could not effectively collect and control radon across such a large crawlspace.

After discussing several options with the homeowner, we recommended installing a sealed crawlspace barrier system. This approach would allow the mitigation system to create consistent negative pressure beneath the barrier, dramatically improving the system's effectiveness.

The existing fan was properly sized and remained in good condition, so we reused it while completely redesigning the piping beneath the crawlspace. Because the crawlspace exceeded approximately 3,000 square feet, we installed two strategically placed extraction points to provide better pressure distribution throughout the entire area.

The results spoke for themselves.

Even with the previous mitigation system operating, the home's radon level measured 4.9 pCi/L. After completing the new sealed crawlspace barrier system, follow-up testing showed the radon concentration had dropped to below 1.0 pCi/L.

Every home is different, and sometimes improving a radon system isn't about installing a larger fan, it's about designing the right system for the home's unique construction. That's exactly what we strive to do on every project.

Our client contacted us after noticing a loud noise coming from the fan on her existing radon mitigation system. The system had been installed previously by another company, so she reached out to us for a consultation. Michael inspected the system and quickly identified that the fan needed to be replaced.

While evaluating the system, we also noticed a few opportunities to improve its overall performance. Older mitigation systems don’t always meet today’s best practices, so we provided several recommendations to bring the system up to modern standards.

During the fan replacement, we discovered the source of the noise and unfortunately, a bird had entered the discharge pipe and become caught in the fan. This is exactly why every system we install includes a critter guard at the top of the discharge line to prevent animals from entering the pipe.

With the new fan installed and the recommended improvements made, the system is now operating quietly and effectively again, restoring proper radon mitigation and peace of mind for the homeowner.

Chris discovered elevated radon levels in his home and contacted Triangle Radon Defense for a solution. After evaluating the property, we designed a custom sub-slab depressurization system for his unfinished basement. The system was strategically installed to effectively reduce radon intrusion and improve indoor air quality throughout the home. Now, Chris can enjoy greater peace of mind knowing his home has healthier, safer air.

Sarah was worried about the high radon test results, which were over 4 pCi/L. She wanted to make sure her home was safe for her family. We completed the installation, which included a gauge and an alarm to help Sarah monitor the system's operation. Now, Sarah and her family can relax knowing they have improved air quality and a safer environment, and she wanted to ensure her home was safe. 

This homeowner reached out after noticing their existing radon system had stopped working. Even though Triangle Radon Defense wasn’t the original installer, our team quickly diagnosed the issue and replaced the failed fan with a new unit. The homeowner now has a fully operational system and peace of mind knowing their home’s air is safe again.