"We had a passive radon mitigation system installed by the builder of our house 5 years ago. After testing the radon in our basement and finding unsafe levels (over 4 piC/L), we realized that our system had to be upgraded to an active system by adding a radon fan to the radon roof vent pipe. We contacted Val Riedman at Indoor-air-health-advisor.com for help. He provided great advice by email and over the phone in selecting the right size radon fan and he gave us “how to” installation tips. His site is an excellent resource for any DIY homeowner who wants to install a new radon system or troubleshoot an existing system. The site also offers a fine selection of top quality radon system equipment prices at good prices.

Based on Val's recommendation, we ordered an RP-145 radon fan and accessories to upgrade our system. We received a confirming email and all items were shipped the same day with order tracking. The items were received in good condition on the promised delivery date. We installed these items and are happy to report that the radon level in our basement is now well below 1 piC/L, a very safe level.

We would highly recommend Val and his website to any DIY homeowner.
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