I found out about these guys from Yelp and they're so worth the $! I was wary of the super coupon companies and although this company wasn't offering coupons, their reputation is awesome. In 19 years they've never had one bad review with the BBB. Their prices are very reasonable considering the fact that they showed up right on time, got right to work, were as non-invasive as they could be and showed me all the 'gunk' that they'd removed from my 90 year old house's air ducts. I don't think the ducts had been cleaned since the 80's. They did a great, great job! If you want the job done right the 1st time, go with these guys!!!