We had our wooden floors refinished over the summer and my wife had the bright idea to call Doc's of Denver up to clean out our vents. When I got a hold of them, they came right out when we needed them to, which was great as I didn't want to spend an entire waiting for them, and got to work immediately. The cleaners were very friendly and professional and did an excellent job. I also really appreciated how they helped us save some money on the cleaning. When we called them, Steve told us what he thought the job would involve, that they charge by the number of vents, and how much the overall price would be. When they finished the job, however, the total costs of the service came out to be less simply by the way they did the work; the number of vents needed to be cleaned were reduced and we ended up paying less than what we thought! We had used them before for floor cleaning issues but this was our first time using them for our vents. Great service overall from Doc's of Denver!