How should the duct cleaning be performed?
This diagram can give you an idea of how a ventilating system in a home is set up. There are many variations, but this may help you have a better idea of what you are talking about with a prospective duct cleaning company. • Upright Indoor System w/gas furnace. • *Type (e.g., heat pump, gas, electric), size, position and location of system components will vary. • Components of a Typical* Residential Heating and Cooling System Methods of cleaning can vary widely. The term for proper cleaning techniques is “Source Removal.” Generally, a specialized vacuum collection device is attached to the system, and special tools are used to dislodge debris inside the ductwork and push it to the vacuum. Some means of agitation should be used inside the ductwork to ensure debris is loosened from the walls of the ductwork. Any access cuts should be closed according to industry standards, and the service technician should verify that your system is operational before departure.
