Promotional value expires 120 days after purchase. Amount paid never expires. May be repurchased every 180 days. Valid only within 50 miles of zip code 60630. Appointment required. Merchant's standard cancellation policy applies (any fees not to exceed voucher price). Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Limit 1 per household. All goods or services must be used by the same person. Additional fee for outside of service area. Additional fee for second floor and upper units. Additional charges apply for extra returns, main trunk lines, or deep dryer-vent cleaning. An additional charge of $25 for each return and $40-$80 for main ducts will apply. Not valid for Air Ducts or Commercial units. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings