Quality First Home Improvement installed eighteen double pane windows, front and sliding patio doors, with security screens for our home. Paul, a salesperson for Quality First explained everything thoroughly, and addressed all of our concerns. The installers were timely, and worked diligently throughout the two days they were here.... "and we're also very pleased with how well they cleaned up everything!" We've noticed a big change from last summer since our window installation. Our home remains cooler, and less neighborhood noise! Thanks Quality First!!