4.5 
389 *The Angi rating for Glazier Service companies in Frederick, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Glazier Service needs.
*The HomeAdvisor rating for Glazier Service companies in Frederick, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Glazier Service needs.
Last update on August 27, 2026
Serving Frederick, CO and surrounding areas
Approved
Super Service Award Winner
In business since 1999
Free estimates
Emergency services offered
"We hired GC to strip the old Masonite siding and install James Hardie"
+174
Serving Frederick, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Warranties offered
"Empire Glass is very efficient. I got two broken window glass panes replaced. Very good people to work with. I highly recommend !"
+20
Serving Frederick, CO and surrounding areas
Approved
In business since 1999
Free estimates
Credit card accepted
"Keith worked with me for about 3 months before I decided the final project. Keith was very professional and patient. He gave 3 estimates for which to choose from. He even hired a designer to help with the colors and placement of the panels. Work was started on time and it looks wonderful. I would highly recommend GS Exterior Experts."
+7
Serving Frederick, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2007
Free estimates
Customers say: Terrific value
"We recently had an egress window installed and couldn’t be happier with the experience. The team was professional, efficient, and paid great attention to detail from start to finish. They kept the work area clean and made sure everything was done to a high standard. The window looks fantastic and has completely transformed the space. We’re so glad we chose them for this project and would highly recommend them to anyone looking for quality work and great service."
+10
Serving Frederick, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"Window well covers look fantastic and the job was done quickly and efficiently. Would definitely recommend."
+17
Serving Frederick, CO and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1992
Free estimates
Warranties offered
"I am very skeptical on door to door sales but they did everything excellent. Everything was very smooth and I didn't feel pressured at all to get my windows fixed. They worked very well on financing. They did our install in one day and was very clean about it. Everyone did a very good job in our project for our windows."
+28
Serving Frederick, CO and surrounding areas
Approved
In business since 2004
Emergency services offered
Warranties offered
"Got my entire gables recapped. The crew was fast and courtesy. The project manager Tim helped us so much. Great communication."
Serving Frederick, CO and surrounding areas
Approved
In business since 2018
Free estimates
Customers say: Quick response
"Three years ago, Chris put in two egress windows for me. Last year he put a window in my basement bathroom. I was needing some trim done in my basement. I mistakenly thought Chris was a window guy. Now I know, He’s an everything guy. I would definitely recommend Chris."
+10
Serving Frederick, CO and surrounding areas
Approved
In business since 1998
Free estimates
Warranties offered
"Paolo's Siding did excellent work and at a great price. This was a somewhat unusual custom job, and we were not looking to spend a huge amount on a fancy-schmancy remodel - we just wanted a functional pantry. Paolo's Siding got it exactly right. We were thoroughly pleased with the experience."
+116
Serving Frederick, CO and surrounding areas
Approved (Corporate)
In business since 2000
Free estimates
Credit card accepted
"Champion windows are superior to anything else I have seen. Day and night difference from my single pane windows. The salesman was very knowledgeable of the product, and was truthful. There installation crew was awesome. Old windows out, new windows in same day."
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