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 because we have very low overhead, our custom windows are locally manufactured and our company has been locally owned for 25 years. You will be very surprised at the savings you will 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. http://kandkklassicdesigns.com. Thank you.