The answer to 'how much to fix air filter in my area' is that the cost to replace an HVAC air filter can vary quite a bit depending on your local market and the specific needs of your system. As a general guideline, you can expect to pay anywhere from $10 to $50 to have a professional HVAC technician replace the air filter in your home.
The exact cost will depend on factors like the size and type of filter required, the accessibility of the filter, and the labor rates in your local area. Replacing the air filter yourself can be a DIY task, but calling a professional is recommended to ensure it's done properly and safely. Getting multiple quotes from local HVAC companies is the best way to determine the fair market price in your neighborhood.