I bought my house recently, did some renovations and cleaning the ducts was the last step. I decided to call with Dial One because they were very responsive and courteous when I asked them for a quote. Aiman arrived to our appointment on time and reviewed the furnace thoroughly. He realized that there was drywall blocking the equipment and found a quick workaround to do the job properly. My neighbor complained about the noise (early on a saturday morning), and also Aiman was willing to go the extra mile to help us avoid issues. Great first experience with this company, I will recommend them to my friends!!