Promotional value expires 180 days after purchase. Amount paid never expires. Limit 1 per person. Limit 1 per household. Valid only for option purchased. Appointment required during normal business hours. Not valid for cash back. Cannot be combined with other specials or offers. Not valid toward current or past jobs. For residential service only. Additional square footage can be purchased at normal rates (which range from $2.50 - $5.00 depending on condition of stone) while still using this Groupon. Valid only within 20 miles of 60630. Additional fee may apply for stone surfaces with topical coatings. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings