DO NOT BUY AIR DUCT CLEANING ON GROUPON. Your purchase get a scam man to your door, taking a look around your entire home to see everything you own and figure what he can scam you for. I bought a cleaning only to get an estimate of $200+ for them to do anything. I am no truly worried about theft. I asked for a refund and was told I can not seek a refund as I refused the work.
Tip for consumers: Do not Use Groupon for any service