⁹ Get $500 off the purchase of windows and/or roofing. Offer is available on selected replacement window and/or roofing purchased by October 31, 2008 and installed by December 31, 2008 (minimum purchase of $5,000 before taxes to qualify for $500 off). For purchases less than $5,000 before taxes, the offer is 10% off. Get 10% off Insulation before taxes. Service not available in all areas. Offer available on new purchases only. Certain terms and conditions apply; cannot be combined with any other offer.