Daniel & Luis were courteous, through, attentive to detail, and very clean. Daniel & Luis made allowances for terminally ill husband by avoiding areas, keeping noise to minimum for early morning. They kept work area neat & clean during & after work. They were polite and asked multiple times at different stages of the work if there were questions or concerns. They considered all possible scenarios in the replacement installation including gas lines, exhaust vents, locations of switches - very thorough! Thank you!!