Promotional value expires 120 days after purchase. Amount paid never expires. Valid only within 40 miles of zip code 29601. Appointment required. Limit 1 per A/C system, additional systems will require additional vouchers. Maintenance cleaning with 3500 CFM negative-air machine. Returns can be added for additional cost. Sanitize, deep cleaning, and mold treatment are not included but can be added for additional cost. Clogged dryer vents and dryer vents over 8 feet are at additional cost. Valid only for option purchased. May be repurchased every 120 days. Limit 3 per 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