We called John to simply ask questions regarding the radon reading after a home inspection on our sale property. He was so helpful and knowledgeable over the phone, we asked him to come give a quote. I was so upset after the radon inspection came back showing exposure! He calmed me down, explained what our levels meant, and reviewed the installation process. On questioning any additions, he said he COULD do those, but it would increase our cost unnecessarily. He was so helpful and flexible that when the radon levels came back on our purchase property, we called him ASAP to install one there as well. He was VERY professional, knowledgeable, honest, and helped us make decisions that would be cost-saving for US and to our family's benefit rather than what would merely increase his pocketbook. (Overprotective mother going overboard unnecessarily.) He did a FANTASTIC job and we are so very thankful for his information, flexibility, and professionalism. We DEFINITELY recommend his services!! Thank you, John!!!