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uPVC Vinyl
& Doors

Locally Owned & Operated

All Windows




We are a manufacturer, distributor & installer of "Custom-Made Solid Vinyl Welded Replacement Windows".  We construct MIKRON windows and are manufactured under strict quality control standards from premium grade PVC extrusions.  This extremely durable material is preferred today for many consumer products due to its great strength, low maintenance and excellent weatherability - all in one attractive package!

For 17 years now, we have worked hard at building a reputation as being honest, making great products and for treating their customers well.  Each window is made to fit your present opening and can be installed by our in-house experts.  With the launch of our new website, we hope to extend our service and education about our products and the window industry.  We are also licensed, insured, bonded, and a member of the Cheyenne & Laramie Chamber of Commerce.

It is our sincerest hope that you find the information you need here whether you purchase a window from us or not; now or in the distant future. And if we can be of any further assistance to you, please do not hesitate to contact us


Nick, Kevin & Mike Gill
The Gill Window Company

About Our Windows: 

“Vinyl” is a term for a generation of plastics based on a polymer known as polyvinyl chloride (PVC). PVC is one of the most desirable and versatile materials building construction.

During the late '70's, early 80's PVC Vinyl windows were first introduced in the United States.   But because of poor formulation, they were more of a plastic than vinyl.  Over time these vinyl windows became brittle and cracked--thus getting a bad reputation.

Since the mid-80's, vinyl windows have been on the rise due to using the right materials in the compound.  This eliminated previous problems and the bad reputation vinyl windows had received.  Today vinyl windows have taken over 50% of the marketplace in the window industry.  Rigid vinyl extrusions are ideal as window framing materials because they have a combination of aesthetic and functional features not found in wood, steel or aluminum. The plasticizers, used in traditional PVC, ease the flow of PVC to form window and door frames, but they can affect the final product with premature aging, chalking and brittleness. 

uPVC (Unplasticized Polyvinyl Chloride) window technology has eliminated these problems and this is what Gill windows are made from.

It’s a New Generation vinyl window that uses a high impact modified PVC known as uPVC. This technological achievement has greatly expanded the design and performance capabilities of vinyl as a window framing material and at the same time, has given vinyl windows smart looks and durability.

In addition, Gill windows are also made from virgin polymer, not regrind. No reprocessed polymer compounds are used that could affect physical properties required for long life. So you can rest assured that when you buy from The Gill Window Company, you are buying a window with quality that surpasses any mass made window on the market today.

What Vinyl Window Give To Homeowners:

  • Virtually maintenance free windows that never require painting

  • Impervious to rot, rust corrosion, blistering, flaking or peeling

  • Easy to clean. Vinyl windows wipe clean with a damp cloth and mild detergent

  • High resistance to heat loss or gain

  • Cuts down on condensation

  • Impermeable to insects

  • Will not support combustion

  • Competitive in cost with other types of window materials

Gill's Installation Service:  

We do our best to ensure our customers have a great experience when we are invited into their homes.  But the best way to describe our installation services is to let our customers speak for themselves.  Click here to read some thank you notes

Click here To Read More About Our Products...

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