$20 off Plus Tax Service Coupon     $20 Off Any Service Call Present this coupon and recieve $20 off your service call. This offer applies to any regularly priced service call..... Discount applies to regular retail pricing. Additional service fees may apply. One coupon per customer. Offer valid through 12/31/2008. Present coupon at time of estimate. Not valid in conjunction with any other offer or warranty work. Limit one discount per service per household. © Apollo Heating & Cooling