Replacement Window Quality & Guarantee

Alside vinyl replacement windows installed by Coventry Windows are made to be long-lasting, high-performance and technically superior. To prove that each window achieves all of these goals, Alside seeks verification from independent testing and certification agencies.

The Alside Lifetime Limited Warranty

Akron's own Alside -- a recognized leader in product innovation, manufacturing excellence and uncompromising quality control -- offers one more layer of protection and peace-of-mind: a Lifetime Limted Warranty. From the day your windows are installed to the day you sell your home, you have our assurance that your windows are fully backed.