BEWARE: THEY take advantage of their customers force you to do extra vents and add on or they do a half the job. They never cleaned our return system bc we limited to 12 vents in our house. Their $10/vent charge is blowing with air/spray something any homeowner can do. Last time our $90 groupon turned into a $350 job. This time we agreed to a $100 duct cleaning with 12 vents as we were focusing on our renovation areas. Today my husband is checking their work they did yesterday and the main function was not completed when he called the company Ihsan is blaming us bc we limited the vents so they dont do the return line. I was alone with my baby so they clearly took advantage of the situation. There's a reason this company is on Groupon... Beware they are robbing people blindly. Lesson learned. Now need to find a company to finish their job. Thanks for robbing a young family with young children. Pictures show they didnt deal their opening/ furnace cover left unscrewed and previous return opening left untouched. This is how they treat previous customers.