Envirotek is the absolute worst company I have ever dealt with. I purchased a Living Social coupon for duct cleaning but they kept referring to my 'carpet cleaning' order. The day of the scheduled appointment 'Carlos' cancelled my carpet cleaning at 8:00 a.m. because he was in Niagara Falls and I was in Toronto. I tried reaching the office but you can't get anyone on the telephone. Plus it takes days to get a response by email. I find Envirotek's approach is unprofessional. I will never use them and I would not recommend them to anyone. I, fortunately, received a refund from Living Social.