Promotional value expires 120 days after purchase. Amount paid never expires. Valid only within 35 miles of zip code 85711. Appointment required. Maintenance cleaning with a 2700 CFM negative air machine. Dryer vent over 10 feet or clogged dryer vents will incur an additional fee. Sanitizing, deep cleanings, and furnace cleanings are not included with this voucher but can be added at the time of service for additional cost. One main and one return is included additional main and returns will require an additional charge. Mains range from $90-$129 depending on length and returns range from $50-$70 depending on size. Disinfecting, deep cleaning, furnace cleaning, mold treatment, and grill vent wash Are not included but can be added for an additional cost. Merchant's standard cancellation policy applies (any fees not to exceed Groupon price). Limit 12 per person. May be repurchased every 365 days. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings