The answer to 'why is my duct cleaning' is that there are a few common reasons why your duct cleaning may not be working as expected. Clogged or dirty air ducts can restrict airflow, leading to reduced efficiency and higher energy bills. Damaged or leaky ducts can also allow dust, debris, and allergens to circulate through your home, reducing indoor air quality.
If your duct cleaning isn't working, it's important to first check for any visible signs of damage or blockages in your ductwork. You may be able to clean out some light debris yourself, but for more extensive issues, it's best to call in a professional HVAC technician to fully inspect and clean your ductwork.