certified company
Based on 225 reviews
Our Certification Process
Best Pick Guarantee
Verified License(s)
Verified General Liability Ins.
Verified Workers' Comp
2nd year as a Best Pick Call
"We offer premium windows, doors, and siding designed specifically for your climate. All products are installed by highly skilled professionals and are covered by one of the most comprehensive warranties in the industry. We're best known for the attention we pay to every detail."

Harley Magden | President & Co-owner
Company Information
Services Offered
Window Nation installs custom vinyl, wood, and fiberglass windows and doors as well as vinyl and fiber cement siding for residents of Northern Virginia, Maryland, DC, Northern Delaware, Pennsylvania, and New Jersey.
Services Not Offered
The company does not install glass block or repair products that it did not install.
Minimum Job
A three-window minimum is required.
Window Nation offers a 100 percent customer satisfaction guarantee.
Company History
Window Nation is owned by brothers Harley and Aaron Magden, third-generation window experts. The company states that it has installed over 275,000 windows in 55,000 homes.
The company is an EPA Lead-Safe Certified Firm and an ENERGY STAR Partner. Window Nation was ranked 6th on Remodeling's 2016 list of the largest replacement contractors in the US.
Areas Served
Montgomery County, Chester County, The Main Line, Bucks County, Delaware County
A selection of 225 homeowner reviews:
“The installation quality was outstanding. They installed 17 windows. They had a very efficient, clean, and high-quality process. The windows are beautiful and have drastically reduced the noise. We can no longer hear most of the traffic along the road out front. We highly recommend Window Nation—A.”
“After talking with several companies, I picked Window Nation for their patience to help me understand the process and explain each step and their awesome professionalism and expertise. I would highly recommend them without reservations.”
“The team was extremely efficient. We are truly impressed with the work done on our home. Everyone at Window Nation is a credit to the business. The windows are great—A+.”
“They can come work in our home anytime. These are workers you can depend on for excellent service.”
“Outstanding customer service before the work while they are doing the work and even after the fact they were there to resolve issues.”
“Gene was replacing our windows and he was amazing! Very friendly and showed us how to properly clean the Windows. Gene and his team were professional and courteous. My only complaint is the original sales pitch is too long. The salesman Allen was friendly and amazing and I know he was just doing his job, however it took much longer than it should have. We knew we were buying Windows and just simply wanted to pick them out. I honestly didn't care about how they would be installed or the history of the company.”
“Window Nation was excellent! From the first quote, to the window measurement, to installation, everything was professional and completed in a timely fashion. The windows look great and we are already referring Window Nation to friends and family!”
“They did a good real job. We installed 18 windows. After the install, there was a draft coming in from one of them, and so I called them up (not expecting anything of it) and not only were they eager to come out and fix it, they quickly figured out what was causing it and fixed it. They care a lot about doing a good job.”
“Very happy with the window units but especially with the installation.”
“From initial consultation to finished product, everyone was very kind, professional, punctual, and high class.”