The handiest system is a vent pipe positioned in the sump pit or a gap made under your concrete floor slab. The vent runs up through the home and out the roof, or out the facet of the house and up to the eaves. A special in-line fan for radon is placed within the attic or exterior the home House & Home Improvement News to suck air via the vent. Any openings in the slab or basis are sealed to maintain out radon. Everyone I talked to at House Doctors was very courteous and thorough and made sure all my questions had been answered. If you need something done at your personal home, I would extremely suggest calling them.