303 Windows


We began our business in January 1995 and incorporated under the name Centennial Home Improvements, Inc. Our original plan was to be a full service residential home improvement company specializing in replacement windows, siding, roofing, fences, concrete work, decks and patio enclosures, entry doors, garage doors, gutters and downspouts and bathroom, kitchen and basement renovation. By June of 1997 approximately 75% of our business was replacement windows. As the demand for replacement windows in the Denver Metro area continued to grow we decided to focus all of our attention on windows, and gradually phased out all other home improvement services.

Dedicated to a high level of customer satisfaction, Centennial Home Improvements, Inc. prides itself on quality of workmanship and our loyalty to Amerimax Windows, who we believe manufactures the best vinyl replacement window for Colorado. Deciding what window brand to use can be a very daunting decision for homeowners, so we’ve tried to simply things. Please read the ABC’s (Always Buy Colorado) to find out why we feel so strongly about Amerimax Windows.

Although we are known as 303‑Windows and our phone number is 303‑WINDOWS (946‑3697), we are still incorporated and doing business under the name Centennial Home Improvements.