Ctr Air Duct & Dryer Vent Cleaning

W are a small company..Im not then usual air duct and dryer vent cleaning company.We don't drive up with big trucks and start cutting holes in your ducts work..We have small portable machines and I clean out every register one at a time.I never understood how the big trucks that use suction to clean them out work very good.Flexable duct work will just work like an accordion.My system uses brushes to clean them out all the dust and debris that collected since it was new.