Due to dust and allergies, I purchased a $40 deal for duct cleaning from Clean Air through LivingSocial and made the appointment for the next day. Was told that they could not do the $40 deal, but offered Basic for $423, w/o u.v. $523 and w/u.v. light $823 (Clean Air was on my voucher that I purchased, but Alpine Air was on the quote form that Josh Bertocci had left with me). After checking on Alpine Air I came up with several bad reviews. I told him that I had only wanted the $40 deal and was going to get a second opinion from my builder and heat and air company. My builder said that my heat/air unit was just like everyone's in my development and county, that someone was trying to sell me something that I did not need. I have a maintenance agreement with my heat and air; they had never mentioned any need either and are schedule to come next month. LivingSocial did reimburse my $40. BEWARD!....