About Us
Penguin Windows is the 7th largest window replacement company in the U.S. and the #1 window replacement company in the Pacific Northwest*. Headquartered in Washington State, Penguin Windows are now available in Washington, Oregon, Massachusetts, New Hampshire, Rhode Island and Maine.
Penguin Windows headquarters are located in Mukilteo, WA
The Penguin Story
Our company was launched in 1984, when we began offering high-quality replacement windows to homeowners who wanted to make their homes safer, more attractive and enjoy maximum energy efficiency.
Other companies may sell a huge variety of products for your home, but at Penguin Windows, we specialize in just one thing - being the best window replacement company, with an exceptional product and unbeatable installation and service.
With one of the most energy-efficient windows in the industry, Penguin Windows offers homeowners the opportunity to reduce home heating and cooling consumption by up to 40%. As energy prices continue to go up and up, upgrading your home with energy efficient Penguin windows saves you more money each year. That’s why we say that Penguin Windows are the windows that literally “pay for themselves.”
Penguin employs InstallationMasters™ certified installers that enable us to offer a Lifetime Warranty on both our windows and our installation. We’ll even replace your windows if you accidentally break one.
* according to Qualified Remodeler Magazine.
Penguin Windows is a proud member of the 
