Ken, the technician, removed our old water heater, installed a new one, replaced the venting to bring it up to code, cleaned the entire area as good as it was before he came and did it all in less than half a day all by himself. He had also put carpet down and wore over boots to eliminate any mess to our floors. He was very informative about the equipment, how we should proceed if we needed to make any changes to it and proved to be a real professional in this industry and an excellent representative of Reliance Home Comfort.