Promotional value expires 150 days after purchase. Amount paid never expires. Valid only within 20 miles of zip code 11803. Limit 1 per person. Valid only for option purchased. Appointment required. 24-hour cancellation notice required. Merchant's standard cancellation policy applies (any fees not to exceed Groupon price). Each session is based on man-hours, e.g. 3-man-hours means three cleaners for one hour; 6-man-hours means three cleaners for 2 hours. Valid only for customers in Nassau County. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings