Enjoy fresh, clean air in through your central heating and cooling system. If you haven’t cleaned your air ducts in a while or you haven’t been regularly changing your air filter, it’s a good idea to have your air ducts cleaned. Also, if you’ve had rodent problems, it’s a good idea for someone to inspect the air ducts for damage. If you’ve had a recent renovation project in which dirt and dust was generated and your vents were not covered, you’ll want to have your ducts cleaned so the dust won’t blow right back into your home.