You will see lots of advertising by major window companies for 50% off sales or Buy one Get one for home replacement windows, however, consider that K and K Klassic Designs has unbeatable pricing, windows are locally manufactured and our company has been locally owned for 27 years. Our customers are very surprised at the savings they receive for a comparable window, great customer service and installation. Call Ken at 303-973-1507 for a quote on your windows and siding needs. Ask us for referrals. Thank you. http:/kandkklassicdesigns.com