Promotional value expires 120 days after purchase. Amount paid never expires. Valid only within 60 miles of zip code 20005. Appointment required. Storm windows and screens not included but can be cleaned for an additional fee. Large, oversized windows may be counted as two windows. Merchant's standard cancellation policy applies (any fees not to exceed voucher price). Limit 1 per person, may buy 1 additional as gift(s). Limit 1 per household. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings