Yes, in fact, homes built into hillsides or on sloped lots can sometimes have higher radon levels due to increased soil contact along the below-grade walls. The greater the surface area of the home that is in contact with soil, the more potential entry points for radon. Hillside homes may require special consideration in the design of a mitigation system to address all potential entry pathways. A-1 Radon's specialists are experienced with all types of lot conditions and building orientations.

Yes, dirt floor basements provide a direct, unobstructed pathway for radon to enter the home. Without a concrete slab to slow radon infiltration, these spaces can have significantly elevated radon levels. Mitigation for dirt floor basements typically involves sub-membrane depressurization, similar to the approach used in crawl spaces. A-1 Radon can assess your dirt floor basement and design an effective mitigation system tailored to its unique characteristics.

Home additions that include new below-grade spaces, foundation work, or changes to the HVAC system can alter radon entry patterns and levels. Renovations that disturb the soil around or beneath the foundation can temporarily increase radon intrusion. If you've recently completed a renovation, retesting your home's radon levels is strongly recommended. A-1 Radon can retest and adjust or expand existing mitigation systems to accommodate changes to your home's footprint.