Why The Window Source?

Replace your old windows with new energy-efficient ones from The Window Source of Indianapolis. We specialize in installing replacement windows made from 100 percent pure virgin materials at the best price.
Save on your monthly energy bills! Our windows come with the NFRC label, meaning the windows have been highly rated regarding energy-efficient factors such as U-Factor, Solar Heat Gain Coefficient, Visible, Transmittance, and Air Leakage.

Our Replacement Windows & Doors:

The Truth About Windows

5 things you should know about the window business

The Best Rated Window Company in Indianapolis

Sales rep, Tina, informative, courteous, and prompt.
"Informative, courteous, and prompt."

Our Mission

The Window Source of Indianapolis believes that buying windows shouldn’t be complicated. We believe in giving you the facts, without all of the hype. And we believe that by selling windows for a fair price, we will become the most successful company in Indianapolis.

We are a family company, backed by a national brand. This gives us the flexibility to work for our customers how we see fit, and gives you the confidence of knowing that you’re getting a proven product.