Cornerstone replaced my kitchen windows and 2 octagon windows. The Salesperson was excellent and no high pressure sales and thoroughly communicated our bid and timing of installation. We had an amazing crew. We encountered a completely unexpected problem with a wall the day of installation. But, our crew found a solution and quickly solved the problem the same day. The windows are amazing. Better than I imagined they would be. Their office staff is fantastic at scheduling and communicating. An

Terrific install experience - very polite crew who were careful with my property and diligent about getting the work done. Beautiful windows, and I'm already noticing a difference in how often the furnace is needed.

Very pleased with the entire process! It was seamless and the door looks wonderful!