Promotional value expires 120 days after purchase. Amount paid never expires. Valid only within 15 miles of zip code 22031. Appointment required, same day appointments accepted. Offer is valid for one unit. Dryer Vent is valid for maintenance cleaning only. Not valid for residents in the district of Columbia. Not valid for high rise buildings. Not valid for high rise buildings or apartments. Limit 1 per person(s), may buy 1 additional as gift(s). Valid only for option purchased. May be repurchased every 30 days. Limit 1 per visit. Limit 1 per household. 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