Expert Window & Door Installation in Colorado & Nebraska

Pinnacle’s certified installers.

Using a certified window replacement contractor is just as important as choosing the best replacement windows. Installation by an experienced installer, using proper installation methods, is key to ensuring your new windows and doors operate correctly, protect your home, and keep their valuable manufacturer warranty.

Pinnacle Windows and Restoration installation crews are certified Installation Masters® and specialize in window and door installation. Our hand-picked installation crews have decades of experience that shows in their workmanship.

Installation Masters® is the most widely known and trusted certification for window installers and was founded by the American Architectural Manufacturers Association. Pinnacle Windows only uses Installation Masters® Certified Installers, ensuring that your replacement windows and doors are installed with the most stringent guidelines and installation practices in the building industry.

Our Superior Window And Door Installation Process.

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Manufacturer's Warranty Protection

Improper window and door installation can cause leaking, malfunctioning windows, security concerns, property damage, and loss of the window manufacturer’s warranty (often a valuable lifetime warranty). Don’t leave one of the most important steps to an inexperienced company using inferior installation methods.

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No Inferior Retrofit Installations

You may hear other window companies tout the benefits of a retrofit installation. Cheaper and faster is not always better. A retrofit is often the wrong installation method per code, voids a manufacturer’s warranty, and may result in damage to your home! Protect your windows and your home by choosing a full frame replacement.

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Door Installation Expertise

The proper installation of a new door is equally important. Like windows, a retrofit application may void a manufacturer warranty, create security issues, and not protect your home from the elements. Make sure your replacement door is beautiful, easily functional, and secure with an experienced installer!

What To Expect: The Pinnacle Windows & Restoration Difference.

At Pinnacle we are proud of our ability to provide our customers with superior service and results! One thing we insist on is doing things THE RIGHT WAY. As our sales and installation team may have explained, there are two ways to replace windows.

 Retrofit Installation

Retrofit illustration

 Nail Fin Installation

Nailfin illustration

For several reasons, we strongly believe that a nailing fin installation is the only proper way to install replacement windows to maintain a whole house weather barrier.

Inexperienced contractors or insurance adjusters may try to convince you that a retrofit installation is better because it MAY be cheaper or faster. Insist that your windows are installed THE RIGHT WAY with Pinnacle!

  • The building codes specify that a nail fin installation is the proper method for the replacement window installations. AAMA code §2400-10. See also International Residential Code, §R609.1.
  • Maintain the look and size of your existing windows. Retrofit creates more layers of window frame and reduces the size of the glass opening on your windows (often by 20%).
  • Properly safeguard your home from water and weather. A nail fin installation creates a new, effective water and weather barrier similar to new construction. Retrofit requires the breaking of existing barriers, simply patches holes, and may include leaving damaged components in place.
  • Preserve the warranty included with your new windows. The value of a lifetime warranty cannot be understated. Many manufacturer warranties are voided by non-code compliant installation.

Our Reputation

Reputation is important and we take pride in ours!

Pinnacle has served thousands of customers.

Had an excellent experience with Pinnacle. I have been working with them for years on various projects, but they just completed a screened in patio for my personal home and I couldn't be happier. On time, clean, clear communication, and the project was done on schedule with no changes. Thrilled beyond belief and will be using them again and again!
Response from the owner:It is such a pleasure to hear from a long time valued partner, and thank you for trusting us with your personal home as well! Our team loves what we do and takes pride in giving our customers exactly what they want. We are thankful you had a wonderful experience.
We recently worked with Pinnacle Windows after the film on our existing windows failed due to the high elevation we live at, leaving them looking cloudy and worn. We ended up replacing 9 windows with three large picture windows, and the difference is incredible.

The team was fantastic to work with—professional, efficient, and detail-oriented. They also replaced our doors and kitchen windows, removing all the grids and upgrading everything to a clean, open look that lets in so much more natural light.

Kenny and the team met with us multiple times and insured we had everything we wanted and more. The finished result truly transformed our space. Everything looks brighter, more modern, and just overall amazing. We’re very happy with the quality of work and would absolutely recommend Pinnacle Windows.
Response from the owner:We are thrilled that your new picture windows and custom door replacements have modernized your space and maximized your natural light. Our team, led by experts like Kenny, is dedicated to detailed, professional restoration and ensuring our customers get exactly what they need—and more. Thank you for recommending Pinnacle Windows & Restoration; we truly appreciate the opportunity to have transformed your home!
I worked primarily with Jacob. He has been over the top in making sure everything is right and going the extra mile. Everyone that I encountered has been super helpful and friendly. The window looks and works great!
Response from the owner:Thank you so much for your review Jim, we appreciate the kind words. We are glad you had a great experience with our team, and we hope you enjoy your windows for many years to come!
Jacob and Team came and looked at a window that no-one else would look at. Angel and Dave installed it and it looks beautiful! So Appreciative. Thanks team!!
Response from the owner:Thank you for your kind review. Our team is passionate about what they do, and times like this shows that. I am glad we could get you taken care of!
We have worked with Pinnacle a ton and have also worked with several other window companies over the years, but Pinnacle has been the best! Nick Battaglia and Chris Trojan specifically have been great!!
Response from the owner:Thank you so much for your review, Adam! Our team really appreciates your kind words, and we look forward to continuing to work together in the future!
Working with Pinnacle Windows has been a really easy, stress free experience and their work and personnel are exceptional. We had our first experience with hail damage last year and a friend recommended Pinnacle Windows. Kaleb came out and inspected our windows and explained the whole process to us. They worked directly with our insurance, sending them (and us) the estimate. They came out and got the work done in one day and even coordinated with other professionals that needed to come in and do other repairs. Everything looks great! We will definitely be using Pinnacle Windows again.
Response from the owner:Thank you so much for sharing your detailed experience with us. We are truly grateful for your kind words and for trusting us with your home after the storm. We know that navigating repairs can be overwhelming, so we are thrilled to hear that you found the process to be a stress-free window replacement experience. Our team, including Kaleb, takes great pride in guiding homeowners through every step, ensuring clarity and peace of mind.
This was my first time dealing with this company and the experience has been great. Jacob was my sales rep and not only was he well mannered and professional. Not once did he make me feel pressured in any way. Great company Would recommend to any one who is looking for a company who is professional and friendly.
Response from the owner:Thank you for your review!
I called this company to get a quote on my window, the salesman was very knowledgeable and I am looking forward to getting my project taken care of.
Response from the owner:Thank you for your kind review, we are thankful you chose us to take of your project!
I had a gentlemen take a look at my 8 windows, was very impressed with his patience and willingness to help me out! Would highly recommend Gunner come take a look at your windows and provide an estimate!
Response from the owner:Thank you for your wonderful feedback! We're so glad to hear that Gunner provided exceptional service while assessing your windows. Whether you're considering window replacement, our team is here to ensure you get the best care and expert advice. Your recommendation means the world to us, and we’re always happy to help with any future window needs!
Excellent job by Pinnacle Windows. Our condo had a very leaky window that leaked very specifically during rain storms.

When Pinnacle came to assess the old window, they saw that it was incorrectly installed in the first place, and was too small, hence the leaking. Unfortunately this was past the statute of limitations for getting money for the correction, but that was not Pinnacle’s fault. I appreciated knowing what the issue was, though.

The replacement fits beautifully, and does not leak. It only took about 4 hours to do the entire deinstall and reinstall. The men who did it were kind and efficient. Great job! Thank you!
Response from the owner:Thank you for sharing your experience with Pinnacle Windows! We're so glad we could help resolve the issue with your leaky window. Identifying the original installation problem and providing a properly fitted window replacement is exactly the kind of care and expertise we strive for. It's great to hear the new window fits beautifully and is leak-free! Our team takes pride in efficient, high-quality work, and we're thrilled you were happy with the results. If you ever need assistance with window restoration or future replacements, we’re here to help!
storm damaged window

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