Promotional value expires 120 days after purchase. Amount paid never expires. Appointment required. Valid within 50 miles of 60487 and 20 miles of zip code 60487. Limit 1 voucher per household. Limit 1 voucher per furnace system; additional systems incur additional costs. 1 return and 1 man is included; additional returns and additional men will incur an additional cost. Clogged dryer vents and dryer vents over 6 feet incur an additional cost of $10 per foot. Sanitizing, mold treatment, furnace cleaning, and deep cleaning not included but can be added for an additional cost. Maintenance cleaning made using 2700cfm negative air machine and soft bristle brushes. Not valid on second floor condos/apartments. Any vent on a higher level will be an additional charge. Limit 12 per person. May be repurchased every 365 days. Must use promotional value in 1 visit. Valid only for option purchased. All goods or services must be used by the same person. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings