Custom Replacement Windows and Doors

Installation Throughout the Front Range

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LP Smart Side Windows
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Since 1993

Custom Replacement Window and Door Installation Throughout the Front Range

Gary Gravina Windows is a full service contractor for custom windows and doors throughout Colorado’s Front Range. We will install replacement windows and doors on homes, condominiums, cabins, apartment complexes, and country clubs.

We offer many types of custom windows and doors, including styles focused on energy efficiency. Brands we use include Lansing, Simonton, Pella, Wincore, ThermaTru Doors, and ProVia.

Patio Doors

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French Doors

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How We Work

Gary Gravina Windows handles much more than windows. Whether you need new windows or doors, something practical like guttering, or a new outdoor space for your home, we can provide you with the support and services you need to help bring your vision to reality. Here is how:

Schedule An Estimate

Measurements Taken and Estimate Provided

Project Approved

Installation Scheduled

When you’re considering a major home improvement project, it’s always important to weigh your options and learn as much as you can. Our team is ready to assist you in assessing your needs and assuring that the solutions we provide are right for you.

Windows Installed

Doors Installed

Years Experience


Gary is wonderful to deal with and has really a good knowledge of the types of windows. In an industry where window companies are a dime a dozen, he takes care of his customers even long after the windows are installed. He is on site for installation and makes sure that everything looks perfect when the job is done.