Serving Southern New Hampshire, Middlesex and Essex Counties Massachusetts
Our radon levels prior to your installing our system averaged 6.5. Our radon levels with the system have dropped to an average of 0.7. Your installers are first class and we are very happy with Erickson. If anyone requests a reference in future please feel free to use us.
Had Erickson's out to install a radon mitigation system and a sump...