Sergio and helper arrived promptly, explained everything they were going to do, very knowledgeable about my issues with mold/mildew and after examining AC air handler inside, explained what should be done to prevent mold/mildew from forming again. Had them also treat/fog the vents. They did a very good thorough job and vacuumed up all debris that came out of vents.
Our technique cleans your entire dryer vent system twice – once from the outside and once from the inside – so you can be sure the job has been done right. According to dryer manufacturers, your dryer vent must be producing about 96 cubic feet of air per minute at a velocity of 1100 feet per minute in order for your dryer to be operating efficiently and safely. We test your system using a sophisticated thermo-anemometer to be sure that you are getting the proper air velocity and volume at the vent cap.
The amount of time air duct cleaning takes can depend on how extensive your duct system is, how old your air ducts are, and whether they have ever been cleaned. On average, expect a standard size home (between 2,000 and 3,000 square feet) to take 2-5 hours for one to two technicians to clean. Here are the proper protocol and equipment you should expect from a professional duct cleaning service, as recommended by the Environmental Protection Agency: