To give you a basic idea, residential air duct cleaning in Houston, TX, starts at around $775 and increases to about $1,000 per unit in the home. This price includes a thorough cleanse of the entire air handler and duct system from top to bottom.

An HVAC maintenance service ensures all system components work correctly and efficiently. On the other hand, air duct cleaning refers to removing dirt, dust, and other debris from your HVAC system's ductwork. It can prevent the buildup of dirt and dust in your home, leading to allergies and other health problems.

Understanding the Scam: Scammers behind duct cleaning phone calls and Facebook ads typically employ similar tactics to reel in their targets. They often pretend to represent a reputable duct cleaning company and use persuasive techniques to create a sense of urgency and convince you to take immediate action.