Greyrock Window & Door
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Professional replacement for windows, doors, and siding in Northern Colorado. Welcome to Grey Rock Window & Door Inc. We provide window, door, and siding replacement services to the Fort Collins community and the surrounding areas. We are a local and family-owned business with more than 15 years of industry experience.

We specialize in replacement windows and doors, and we can provide you with the custom look you want for your home. When youre looking to replace your homes windows, doors, or siding, we know youd like to find custom products at competitive prices. We are proud to offer factory-direct pricing, which means you wont pay the premium prices that go with premium products.

As a family-owned business, its important for us to provide other families with a great product at an exceptional price. For all of your residential window and door replacement needs in Northern Colorado, we are the trusted professionals who can help. A few months ago, I took on the task of finding new windows for our home.
Services
Greyrock Window & Door company loves helping our clients improve their homes through window repair and replacement, custom doors, and siding replacement. Improving your home not only adds value to it, but it also makes it a more pleasant place to live. Oftentimes, we take pride in our homes and making it comfortable for our families.
Whether you need window replacement, a custom new front door, or windows retrofitted, you want a window and door company that is not only competent, but also cares. Greyrock Window & Door, based in Fort Collins, offers the best window replacement and installation services, as well as siding replacement and custom doors.
When your home needs new windows or a new door, look not further than Grayrock Window & Door. We serve Fort Collins & Southern Wyoming with beautiful storm doors, bay windows, entry doors, and exterior siding. We offer window installation and door installation to simplify your life. Life is too short not to be able to let the light in.
A few months ago, I took on the task of finding new windows for our home. After what seemed like ages of searching, we stumbled upon Greyrock Window & Door in Fort Collins. Whether youre ready for it or not, winter is almost here. For Coloradoans all along the Front Range, that means cold nights and a mix of both sunny and snowy days.
Providing your home with trusted, energy-efficient window solutions from our exclusive Vanguard Windows dealers. Humans are creatures of comfort. We enjoy a cool, drafty climate during the warmer months, and a warm, cozy indoor living space during the colder months.
Reviews (8)
Bopper Smith
Bopper Smith
Nov 06, 2021
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Door was due to be installed in Sept. I called salesman in Oct 4 times. 1st time said his contact was on vaca, 2nd call he said corporate had no internet, 3rd n 4th call he never returned. Called Provia directly they told me production delays but door sched to start build next week. Finally got door installed. Installers didn't have trim in truck. I've now called 4 times to Greyrock n NEVER get a return phone call. To add insult to injury side light has a ding in it. I do NOT recommend Greyrock - plenty of other competition that hopefully offers better customer service.
Cassandra Lenton
Cassandra Lenton
Oct 05, 2021
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Just had almost all of our windows and doors replaced by Greyrock and they did a fantastic job. The wait was a bit long (4 months) but so is everything these days. The installers were friendly and professional and the cost was super competitive. We got much higher quality for less cost than several other companies we got estimates from. 10/10 recommend.
Jarred Pace
Jarred Pace
Aug 29, 2020
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Great experience with the folks at Greyrock. We replaced two doors in our house and both have been a great addition. They were actually able to replace sizes that other companies couldn't even work with. Dave kept us up to date throughout the pandemic with the expected delays. Install was quick and cleaned up really well. Sliding door with a doggie entrance was very well received by our pups.
Carol Ballantine
Carol Ballantine
Aug 26, 2020
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Positive: Quality
We had Greyrock replace all our windows and front door. Their products are high quality and everyone is friendly and a pleasure to work with. New door was installed today and it is gorgeous!!! Bill and team - thank you.
Marty Bateman
Marty Bateman
Aug 30, 2019
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We replaced our windows and Greyrock did a great job! Not a high pressure sales job but gave us all the information we needed. They look great and they are very reasonable in price -- actually our lowest quote.
Brad Aurigemma
Brad Aurigemma
Aug 27, 2018
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I highly recommend getting a quote from Greyrock! I am not one to normally write reviews, but I need to let people know about my experience with Greyrock Windows. My new windows and sliding door were installed yesterday, and I am so happy with the work! From my first meeting with the owner, Bill Walsh, I could tell that he was not only extremely knowledgeable, but very honest and he sincerely had my best interest in mind. My consultation was very informative and low pressure. Then, at my request, He quickly measured all of my windows and entered data into his tablet as he went. I had a good idea
Social Media
Social Media
Jun 07, 2018
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We have had Greyrock install a new front door as well as replace all the windows in our house. Bill was very friendly and gave us a very fair price for excellent quality materials. The installers, Brandon and Logan, were fantastic. They worked quickly but carefully and we wonderful with our golden retriever who wanted to help. I don't hesitate to recommend them at all.
Elycia Feldman
Elycia Feldman
May 20, 2018
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Great company everyone that we worked with was pleasant! Bill was not only great about communicating project details but also explained the products with knowledge and wisdom. The install was seamless and done by experienced staff. We are super happy with our new windows and doors! I would highly recommend Greyrock to anyone looking to improve the value of their home and quality of their life.