Home improvements that really add value before you sell

The opinions expressed are the author’s alone and have not been provided, approved, or otherwise endorsed by our partners. If two tests give a high reading, consult a radon mitigation contractor . These contractors can professionally test the house and install a mitigation system for reducing radon to a harmless level. The most effective system is a vent pipe placed in the sump pit or a hole made under your concrete floor slab. The vent runs up through the house and out the roof, or out the side of the house …