Promotional value expires 120 days after purchase. Amount paid never expires. Valid only within 35 miles of zip code 78752. Appointment required. Limited for single furnace and dryer vent up to 7 feet. Merchant's standard cancellation policy applies (any fees not to exceed voucher price). Limit 4 per person. May be repurchased every 365 days. 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