Radon Information Before & After Photos

This install we had to use multiple extraction points due to additions on the property we topped off the install with a premium low voltage fan and a fan moisture guard. Another happy client

This job was a unique one. This house was right on the oceanfront and when high tide occurs the basement floods. This basement had current radon mitigation system with 2 extraction points however with the installation of several sump pumps and water guard drainage system it was allowing the radon gasses up through these areas. The water guard could not be sealed due to the amount of water that come in. So we chose installing an erv as the next best choice. This erv we added a damper on the stale air so we can create positive pressure which will reduce the radon levels in this home.

Before:
This Cape Elizabeth home had elevated radon levels of around 10 pCi/L on the first floor and an existing passive radon system in place. The home included two spray-foamed crawl spaces, and the homeowner wanted to determine whether activating the passive system with additional extractions would effectively reduce levels without installing a full sub-slab system.

Prior to installation, we coordinated access so we could enter the home without interruption, as the client might have been on a call. We performed communication testing in both crawl spaces to confirm airflow and system viability, with plans to reseal all areas afterward.

After:
We successfully activated the passive radon system using a dual extraction setup, with one extraction point in each spray-foamed crawl space. Both extractions were carefully pulled from under the spray foam, rather than from beneath the slab, and then tied cleanly into the existing passive system.

All crawl spaces were properly resealed after testing and installation. The final setup allowed the passive system to effectively pull from both crawl spaces, improving overall radon reduction potential while preserving the integrity of the spray foam and structure.

The installation was clean, coordinated, and worked exactly as planned—providing a smart, efficient radon solution for the home.

Another Cape Elizabeth property protected with thoughtful design and precise execution.

Maine Radon & Environmental was hired to install a radon mitigation system in this Falmouth home. Client was concerned about there levels and hired Maine radon & environmental to take care of this issue. Another happy client!!

Maine Radon & Environmental was hired to install a radon treatment system in this Falmouth home. We discussed the homeowner's options and they were happy to know we could install the system where they wanted it located. The post results were great!!