WHAT IS THE BEST WAY TO COMPARE WINDOWS?

The Window Source of Grand Rapids advises that the most reliable way to compare windows is by asking for the NFRC* rating for each window you're considering. NFRC labels independently certify the entire window performance using U-Factor and Solar Heat Gain Coefficient (SHGC) ratings. Lower ratings indicate higher performance. It's best to forget sales gimmicks and select the optimal NFRC ratings for your Grand Rapids climate at the most reasonable cost.

What is an Energy Star window?

Energy Star is a government-administered certification program to assist you in selecting climate-optimized, energy-efficient windows. To qualify, a window must meet certain performance standards based on NFRC total window performance ratings, which vary for each of four climate zones.

Does The Window Source have Energy Star windows and doors?

Absolutely, any window or patio door with a LowE glass upgrade purchased from us, meets the Energy Star guidelines for your climate zone. We provide a written guarantee on your contract ensuring that the best LowE glass optimized for your unique climate zone is ordered and received.

How can The Window Source be so much more affordable than other companies?

Our massive national buying power lets us offer you great prices on premium vinyl windows. Combined with our competitive prices and straightforward buying process, we can operate efficiently and pass the savings on to you.

Is the installation as important as the window?

Indeed, correct measurement of a window to fit its opening and allowing sufficient tolerance for plumbing and squaring the new window is vital. An improperly installed window will not seal or function correctly, regardless of its quality.

Blog

Installing a Front Door on Your Own: What Homeowners Should Know

Yes, you can install a front door by yourself, but it is not always a smart move for every homeowner. Many people ask Can You Install a Front Door by yourself? What You Should Know First, because replacing a front door feels like a simple job. It looks straightforward in videos. Remove the old door. […]

January 6, 2026

See What Our Customers Are Saying About Us

We just had The Window Source install 6 new windows and a sliding door. They look fantastic! All the windows are triple pane and are very efficient and high quality. The fact that they were about 1/2 the price of the competition was a sweet bonus! Aaron and his team did a great job and showed up on time and were very professional. And no high pressure sales tactics – very refreshing. I would recommend The window Source to all my friends and family.

Andrew Ehlert

I am so happy with our new windows and new door. Ben installed everything for us, and he did an amazing job! I cannot say enough about the installer, he was on time, professional, fast, and his quality of work is superb . His work ethic is none like I’ve ever seen. We will definitely be using The Window Source again in the future!

Mary Shopshear

Initially, Adam Fewins was thorough and knowledgeable. The owner, Aaron was extremely generous. As a customer, David made sure I was taken care of. I’m 110% satisfied with everything! Down to workmanship, Ben Ryman was amazing installing my windows. I felt very comfortable with everyone who was Involved. If you want excellent quality windows, customer service and installation for the price, I highly recommend The Window Source.

Deanna Liddy

Great experience even given the unpredictable product delivery industry this past couple of years. Lots of communication and they were there when they said they would be and finished on time. Ben installed the windows and was polite, efficient and so knowledgeable. Professionalism from top to bottom!

Jeanne Marriott

Had several windows including a slider door and large picture window replaced. Ben and Andrea were very pleasant to work with. Very professional. Cleaned up everything while they were working and after as well. I am so happy I went with Window Sources of Western Michigan.