The answer to 'how much does air duct cost' is that the cost can vary widely depending on several factors. In general, air duct cleaning and maintenance typically ranges from $300 to $700 for a standard-sized home. The exact cost will depend on the size of your home, the number of vents and ducts, the condition of the system, and whether any repairs or replacements are needed.
It's important to get local quotes from reputable air duct cleaning companies, as prices can differ significantly by region and provider. They will be able to assess your specific needs and provide an accurate estimate. Proper air duct maintenance is essential for indoor air quality and energy efficiency, so it's worth investing in professional service.