Expires on 28-Jul-2013. Buy 1 voucher for yourself and unlimited as gifts. Limit 1 voucher per household. By appointment only, please call 312.253.7401 for bookings. Voucher is valid for a complete interior and exterior window cleaning of up to 20 standard windows, including a complimentary screen cleaning for each window. Valid for up to 2 story establishments. Additional windows are paid at the rate of $5 per window. Additional charges apply for French pane windows. Servicing within 25 mile radius of zip code 60409. Additional charge will apply for areas outside of these boundaries, please call to inquire. Cleaning supplies are included. Not valid with other offers. No cash back or credit. Not valid for tax and gratuities. Cannot be redeemed before Saturday, July 28, 2012.