If you find a qualifying lower price on the same window product and installation within 30 days of your order—and at least one business day before installation—Windows USA will match it. Just share a written estimate from a licensed competitor with a verifiable website. It needs to list the product details, price, warranties, and services, and the product must have equal or better efficiency ratings. Windows USA will review the estimate to determine, in its sole discretion, if it qualifies. Estimates from DIY retailers, wholesalers, or unauthorized sellers don’t qualify. This offer is for residential window replacements only and may change at any time.