Specialized Trade Services

Multi-Point Sub-Slab Depressurization

Installing interconnected suction pits beneath wide concrete floor plans to achieve comprehensive negative pressure field extension.

Sealed Sump Basin Radon Extraction

Installing airtight gasketed Lexan clear sump lids and dedicated PVC suction vents to extract radon before it escapes into basements.

Passive Stack to Active Fan Conversion

Upgrading builder-installed passive PVC pipes by wiring commercial radon fans and differential pressure U-tube manometers.

Diagnostic Communication Testing

Drilling 1/2-inch test holes across concrete floors and measuring pressure differentials with digital micromanometers to size suction fans.

Crawlspace Encapsulation & Gas Evacuation

Fully taping 20-mil vapor barriers to foundation walls and running perforated radon suction lines beneath.

Mountain Geology & Operational Dynamics

Dense mica schist and compacted saprolite clays restrict air permeability, requiring high-suction GP-501 fans to establish effective under-slab depressurization.

Mitigation vehicles operating from Waynesville and Sylva keep high-flow RadonAway RP-series and high-suction GP-series fans ready for quick deployment along US-23.

Codes, Safety & Permitting Compliance

Multi-point sub-slab radon suction, sealed sump basin covers, and passive stack conversions throughout Haywood, Jackson, and Macon Counties comply with Southwestern District Health Department guidelines, NC building codes, and EPA mitigation criteria.

Representative Corridor Projects & Case Studies

Case Study 1: Waynesville Mountain Estate Multi-Suction System: Installed a 3-point active sub-slab system dropping radon from 34.8 pCi/L down to 1.3 pCi/L.
Case Study 2: Sylva Hillside Residence Passive-to-Active Upgrade: Added an inline exterior fan and U-tube manometer, cutting real estate radon levels from 8.6 to 0.7 pCi/L.
Case Study 3: Franklin River Valley Sump Basin Sealing: Sealed open sump pits and ducted sub-slab gases outside, dropping main living area radon to 1.0 pCi/L.

Central West Balsams

Municipal Centers & Spoke Communities

Waynesville, NC

Canton, NC

Sylva, NC

Franklin, NC