Promotional value expires 120 days after purchase. Amount paid never expires. Valid only within 30 miles of zip code 94103. Appointment required. Merchant's standard cancellation policy applies (any fees not to exceed Groupon price). Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Must use promotional value in 1 visit. Valid only for option purchased. All goods or services must be used by the same person. Additional fee may be charged for deep duct cleaning, sanitizing, furnace cleaning, and dryer vent cleaning more than four feet. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings