The answer to 'difference between duct cleaning and' is that duct cleaning and duct sealing are two distinct HVAC services that address different needs. Duct cleaning involves using specialized tools to remove built-up dust, debris, and contaminants from the interior of your home's ductwork. This can improve indoor air quality and the efficiency of your HVAC system. Duct sealing, on the other hand, focuses on finding and repairing any leaks or gaps in the ductwork to prevent conditioned air from escaping, which can also improve efficiency and reduce energy costs.
Duct cleaning is typically recommended every 3-5 years, or if you notice visible dust or debris in the vents. Duct sealing may be needed if you notice uneven temperatures, high energy bills, or excessive dust in your home, as these can be signs of leaky ductwork. Both services are best performed by professional HVAC technicians who have the right equipment and expertise to do the job properly.