Promotional value expires 120 days after purchase. Amount paid never expires. May be repurchased every 30 days. Appointment required, same day appointments accepted. Merchant's standard cancellation policy applies (any fees not to exceed Groupon price). Valid within 30 miles of zip 63122. 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 fees apply for removal of or cleaning of screen. Valid for interior- and exterior-window and window-base cleaning. Must remove any obstructing items from window prior to appointment. Storm windows not included. No windows higher than standard two-story home. Valid Monday to Friday. Valid for residential or commercial service. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings