I recently had our dryer vent cleaned by Dr. Clean Air. William (the owner) was friendly, polite, and professional. They arrived on time, set up and completed the job in a very reasonable time frame. William noticed another vent outside that was broken and luckily had a replacement with him so I added that to the job. He then took a few minutes to look at the furnace and cleaned a couple of the filters on a separate part of the furnace and checked the humidifier filter as well. That was completely disgusting! He told me to pick one up at Home Depot and he's stop in one night to change it for me! And he did! I will be touching base soon to have our furnace cleaned, as well as the ducts throughout the house. I trust that Dr Clean Air will do a thorough job and I highly recommend them! I was also impressed by the price and quality of their work, my family and I immediately felt the difference in the air quality in out house. We are breathing and sleeping better since having them clean the ducts. Thank you Dr Clean Air!