These guys are the best. If you are looking for advice or a problem solved, have them come out and tell you all about the problems and solutions for your a/c or heater. Ask for Brett. We really enjoyed working with him. He is very knowledgeable and down to earth. He sealed our ducts with Aeroseal. Awesome job! Get your ducts sealed and you won't have to keep cleaning them. They are bringing in dust and insulation from your attic. They can solve that problem, especially if you have asthma or allergies. You won't be disappointed with this business.
http://masonmechanical.com/ (the best)
-Jason Manning