The answer to 'how long will duct cleaning last' is that a thorough duct cleaning can typically last 3-5 years for most homes. Proper duct maintenance and cleaning helps improve indoor air quality, energy efficiency, and the lifespan of your HVAC system.
Regular duct cleaning removes built-up dust, debris, and contaminants that can accumulate over time. This helps prevent issues like reduced airflow, increased energy costs, and the spread of allergens and pollutants throughout your home. The frequency of duct cleaning needed can vary based on factors like home size, number of occupants, and whether you have pets.