Before:
The home had no radon system in place and tested between 4–5 pCi/L, with no sump or water drainage infrastructure available.

After:
A two-pipe system was installed—one for the foundation and another for the slab—strategically placed and routed out through the left side of the house. The result: effective radon mitigation with no unnecessary cosmetic disruption.

Explore the significant impact of our radon mitigation efforts in a split-level Stamford home through our before and after gallery. Facing a radon level of 7.4, we implemented a two-pipe system that effectively reduces radon levels by drawing radon from both the slab and the unfinished basement. After photos illustrate the discreet external piping installation around the fireplace and ascending the home's peak, showcasing our ability to enhance safety without compromising the home's aesthetic.

Discover the transformation in a 1966 Stamford home, where we installed a two-pipe radon mitigation system in a semi-finished basement with a high radon level of 11.6. The before and after images illustrate the significant reduction in radon levels achieved despite the absence of a moisture guard and major structural modifications. The project also involved careful coordination with the homeowner regarding pet safety and potential adjustments.

The radon level measured 5.1 pCi/L, which is slightly above EPA action level.

A single-pipe system will be installed to mitigate radon to safe levels. The system will use standard 3” Schedule 40 PVC routed from the foundation slab up through the side of the home or attic, depending on structural layout and power access.

Before photos will capture the foundation area prior to drilling, and external areas for pipe exit, while after photos will show the sealed suction point, fan placement, and final exterior vent termination. Due to the Cape style and small footprint, routing is expected to be direct and clean.

Before: Two-pipe radon system poorly located at the front of the house with one extraction point covered in plastic.
After: Extraction repaired, third pipe added, and system relocated to the back of the house—away from bedrooms, per homeowner request. Crawl space encapsulated (12x42 area) for long-term control.