Full Window Replacement

At Colorado Glass and Mirror, we specialize in expert window and door installation, replacement, and repair across the Denver metro area. Since 2014, our locally owned team has built a reputation for precision craftsmanship, reliable service, and a 100% lifetime warranty on every project.

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Upgrade Your Property with Expert Window & Door Services

At Colorado Glass and Mirror, we offer expert installation, replacement, and repair services for windows and doors, catering to both homeowners and businesses across the Denver metro area. Since our inception in 2014, our locally owned company has earned trust for its precision craftsmanship, dependable service, and a 100% lifetime warranty on every project we undertake!  Our team recognizes that your windows and doors do more than just serve functional purposes; they enhance curb appeal, boost energy efficiency, and ensure safety and comfort. That’s why we dedicate ourselves to providing solutions specifically designed to meet the unique needs of your property, style, and budget.

Types of Windows We Install IN DENVER

Every property has unique needs, and that is why we offer a full selection of window styles to match any space, design, or function. Our skilled team installs:


  • Single-Hung Windows: A cost-effective and timeless design with one operable sash.
  • Double-Hung Windows: Popular for their versatility, offering ventilation from both the top and bottom.
  • Casement Windows: Side-hinged and easy to open, perfect for airflow and energy efficiency.
  • Sliding Windows: Modern, space-saving designs with smooth-gliding panels.
  • Bay and Bow Windows: Elegant, extended windows that create extra light and space.
  • Picture Windows: Large, fixed panes that showcase your view while maximizing sunlight.
  • Awning Windows: Top-hinged windows that can remain open during light rain.
  • Energy-Efficient Windows: Double or triple-pane glass designed to handle Colorado’s climate.



(720) 706-4572

Visual Of Window Types We Install

Eight window types: Casement, Awning, Double-Hung, Single-Hung, Sliding, Bay or Bow, Custom Shape, and Custom Window.
Two white framed windows, open outwards, black frames, on a white building exterior. Green foliage above.

Awning Windows

Awning windows have a versatile and attractive look. They operate with a turn of an easy-to-reach fold-away crank and are hinged at the top so the frame swings outward to open.  



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Bay window with grey trim, open side windows, overlooking a landscape. White countertop, sconces.

Bay and Bow Windows

Bay windows typically feature three panels — a large fixed picture window in the center flanked by two smaller operable windows at an angle. 

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Open window with dark trim, overlooking a neighborhood with green lawns and houses.

Casement Windows

Casement windows don’t open in an up-and-down motion, but rather in an outward motion. 

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Room with large, grid-paned windows, a black armchair, and potted plants on a rug.

Picture Frame Windows

Large picture windows are perfect for showcasing the outdoors. Picture windows, also known as fixed windows, are inoperable, meaning they do not open, but they allow for light to enter into your home with ease.


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Bright, airy living room with large white-framed windows overlooking a green field and blue sky.
A covered front porch with white chairs, a small table, and a large window. Gray siding and stone columns.
White-framed sliding window with trees reflected in it. A dark, closed panel is on the right. Red flowers on a table.
White kitchen with sage green wall paneling, white cabinets, and four windows.

Why Now Is the Best Time to Upgrade

With rising energy costs and the demand for modern design, investing in new windows and doors is one of the smartest upgrades for your property. Homeowners see improved efficiency, higher resale value, and better comfort almost immediately. Businesses enjoy lower operating expenses and an enhanced customer experience.


The Benefits of Upgrading Your Windows and Doors

Installing new windows and doors is one of the most impactful upgrades you can make to your property. For many homeowners, the decision pays for itself in reduced energy bills, improved comfort, and higher resale value. Businesses also benefit from modern, efficient designs that enhance customer experiences and reduce operating costs.


With new windows and doors, you will enjoy:

  • Lower energy bills with improved insulation and tighter seals.
  • Stronger security with advanced locking systems and reinforced glass.
  • Improved curb appeal that makes your property look polished and inviting.
  • Noise reduction that creates a quieter indoor environment.
  • Low-maintenance designs that resist fading, warping, and weather damage.
  • Greater comfort with consistent indoor temperatures throughout the year.

For homeowners and business owners alike, upgrading is a smart investment that delivers both immediate impact and long-term value.

(720) 706-4572
A door boarded up with wood panels at a business storefront; outdoor seating nearby.
Shattered glass door of a building. Interior shows a room with pink walls and a desk.

How it works

  • 1. Send a request

    Contact Colorado Glass and Mirror to get started with your window replacement or glass door installation. Simply fill out our online form or call our Denver office to schedule your free estimate. Our friendly team responds quickly and helps you choose the right products from trusted brands like Pella, Milgard, and Alside.

  • 2. Take measurements

    A certified installer will visit your home or business to take precise measurements for your new windows or glass doors. Accurate measurements ensure energy efficiency, perfect fit, and a smooth installation process. During this visit, we’ll also review design options and materials tailored to your property.

  • 3. Approve budget

    Colorado Glass and Mirror is known across the Denver metro area for transparent pricing and no hidden fees. Approve your quote when you’re ready, and we’ll schedule your project right away.

  • 4. Start project

    Our professional installers handle your full window or glass door installation from start to finish. We use high-quality materials from Pella, Milgard, and Alside to deliver superior results that improve both comfort and curb appeal. Every project is performed with precision, cleanliness, and respect for your space.

  • 5. Finish on schedule

    Your new windows or glass doors will be installed on time and inspected for quality assurance. Colorado Glass and Mirror stands behind every installation with a lifetime workmanship warranty, ensuring your investment is protected and your home looks its best for years to come.

100% Financing Available for Full Window Replacement

Denver’s #1 Choice for Windows and Doors

Why Choose Colorado Glass and Mirror?

Selecting the right contractor makes all the difference in a window or door project. At Colorado Glass and Mirror, our reputation has been built on honesty, reliability, and a strong commitment to quality. We have grown from a single window repair in 2014 into one of the Denver area’s most trusted glass companies.



Our success reflects the way we treat our customers and the pride we take in every project. Clients choose us because we bring over a decade of experience to every job. We stand behind our work with a lifetime warranty on all installations. Our team is made up of skilled installers who care about getting it right the first time. We understand the unique weather demands of Colorado and recommend energy-efficient solutions that last.


 Most importantly, we respect every client equally, whether we are working on a luxury estate or a rental property. When you work with us, you are not just getting windows and doors. You are gaining a trusted partner who puts your needs first.


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Get A Hassle-Free Quote For New Windows

Our 100% financing options allow you to replace your old, drafty windows now and pay over time with flexible, affordable monthly payments. Whether you are improving a single room or renovating your entire home, our financing program is designed to help you get the comfort, energy savings, and curb appeal you deserve right away.


Key benefits of our financing program include:

  • Fast and easy approval process with trusted local lenders
  • No upfront payments required in most cases
  • Competitive interest rates tailored to your budget
  • Financing available for both residential and commercial window projects



(720) 706-4572

Commercial Window and Door Services

Colorado Glass and Mirror also partners with businesses, property managers, and contractors to deliver professional-grade window and door solutions. Our commercial services include storefront glass and durable entry doors built for high-traffic areas.


We provide secure, high-performance doors designed to withstand heavy use, as well as custom glass walls and partitions that enhance the look and functionality of office spaces.

(720) 706-4572

 Book an Appointment

Ready to start your next glass project?