Commercial & Multifamily Radon in Knoxville

Buildings That Need a Real Program

Single-family testing is one monitor and a weekend. Commercial and multifamily work is a measurement program, because a large building is not one air space. Apartment buildings, daycares, schools, churches, medical offices, office parks and mixed-use ground floors all need testing designed around how the building is actually partitioned and ventilated.

Multifamily testing follows ANSI/AARST protocols for multifamily buildings, which means testing every ground-contact unit rather than sampling a few and extrapolating. That distinction matters, because radon does not distribute evenly across a floor plate. One unit over a fractured seam can read several times its neighbor.

Why Owners Call Us

• Acquisition and refinance due diligence. Lenders and institutional buyers increasingly ask for radon results on ground-contact residential units, and a Phase I environmental report will often flag it in a Zone 1 county like Knox.
• Childcare and school licensing or policy. Facilities serving children frequently have radon language in their own standards or insurance requirements, and parents ask.
• Tenant complaints or a single high unit. One elevated result usually means the building needs a plan, not a one-off fix.
• Renovation and conversion. Converting warehouse or office space to residential changes the occupancy math entirely.

Mitigation at Building Scale

Commercial mitigation uses the same physics as residential and different engineering. Larger slabs need multiple suction points balanced against each other, fan selection has to account for the building's existing HVAC pressures, and in many buildings the cheapest effective fix is adjusting the ventilation system rather than adding pipe. We design to the building, verify with post-mitigation testing across the affected areas, and hand over documentation your lender, licensing body or insurer will accept.

Getting a Scope and Price

Send us the building type, square footage, number of ground-contact units, foundation type and what is driving the request, whether that is a closing date, a licensing deadline or a tenant issue. We will come back with a written scope and a fixed price. Knoxville, Knox County and across East Tennessee.