Promotional value expires 120 days after purchase. Amount paid never expires. Valid only within 30 miles of zip code 60154. Extra fee of $25 outside service area. Appointment required. Limit 1 per person, may buy 1 additional as gift. Limit 1 per household. Valid only for option purchased. All goods or services must be used by the same person. Not valid for marble or limestone. Cleaning of walls available at additional charge. Cleaning over 300 square feet is an additional $1 per square foot; cleaning and sealing over 300 square feet is an additional $1.30 per square foot. 2nd floor and above require $25 access fee. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.