Promotional value expires 180 days after purchase. Amount paid never expires. 24-hour cancellation notice required. Appointment required. Excludes flushing. Flushing available at an additional cost. Service to be scheduled during normal business hours: Monday through Friday 8 a.m. to 4 p.m. Valid in Royalton, Cleveland, Akron, Lake, Summit, Lorain, Medina, Mentor, North Olmsted, Olmsted, Parma, and Cuyahoga counties. Not valid for boilers or commercial heaters, commercial water heaters, oil furnaces, and tankless water heaters. Unit must be accessible and in a working condition to preform service and for offer to be valid. Customer will be called en-route and must be available all day; missed calls are subject to reschedule or to be serviced at a later time which may be outside of normal business hours due to unpredictable repairs or extreme weather events. Groupon voucher's must be mentioned prior to scheduling an appointment. Limit 1 per person(s), may buy 1 additional as gift(s). Valid only for option purchased. Not valid with other offers or promotions. Limit 1 per visit. 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