Throughout the years, many people have contacted us to fix radon remediation systems that were installed by other contractors. Some are systems installed long ago, before there were radon mitigation standards. Others were installed recently by radon companies that are not up to par. Often times, the buyer of a new home has found out that the sellers had the cheapest system installed possible. Those buyers are sometimes left with an ugly contraption on the side of their home. Worse yet, much of the time those systems don’t work to reduce radon levels. There are some bad quality systems in homes that were installed by companies that otherwise look to be reputable.