Air Duct Cleaning Using RotoBrush Technology It is recommended that supply and return duct lines are cleaned and sanitizied every 10 to 15 years.

Spring Cleaning Sale 25% Savings on Air Duct Inspection, Cleaning & Sanitation.   Normal 1200 square foot house runs $300 - $400  for service.   Save $75 - $100 before April 30, 2011