4.5 
1.2k+ *The Angi rating for Glazier Service companies in Thornton, 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 Thornton, 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 May 18, 2026
Serving Thornton, CO and surrounding areas
Approved
In business since 2014
Credit card accepted
Offers commercial services
"They were very professional, timely & quick in repairing my sliding door. Would definitely recommend to others!"
Serving Thornton, CO and surrounding areas
Approved
In business since 2015
Free estimates
Customers say: Quality work
"We are so happy to have hired One Window At a Time to replace over half of the windows in our house. Bruce was knowledgeable and professional and explained the installation process and answered all my questions. They helped us redesign our front picture window and also installed new sliding glass doors. Clear and efficient communication and superb work done in less than 2 days."
+67
Serving Thornton, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2007
Free estimates
Customers say: Terrific value
"I found this company on Angi and Drew reached out to me the same day. I gave him some information on what is going on at my momâ s house, he gave me a ballpark of what it may Cost, a few thousand less than what other companies quoted me. we scheduled an inspection for 2 weeks later and a week after that 2 Egress windows were installed. He was very informative on what they would be doing, how much it would cost, how long it would take and more. He went above and beyond and was even able to do the framing around the new windows as well. When we are ready to get the other two rooms in my momâ s house done we will be reaching out to Drew and his team again!"
+10
Serving Thornton, 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 Thornton, CO and surrounding areas
Approved
In business since 2013
Free estimates
Credit card accepted
"I'm very pleased with the work that was done. From beginning to end only took 2 days and the egress window looks great!!"
+15
Serving Thornton, CO and surrounding areas
Approved
In business since 2018
Free estimates
Credit card accepted
"I had a long skinny glass window that was broken so the glass had to be ordered. It arrived in the time frame they said it would and when they called to let me know it was in, I got same day service. In fact they arrived within 2 hours. The guy was super nice and it didn't take very long to install. Best of all he didn't leave a mess for me to clean up."
Serving Thornton, CO and surrounding areas
Approved
In business since 2004
Emergency services offered
Warranties offered
"Tony the project manager did a fantastic job installing brand new trim all the way around the property. It looks fantastic."
+52
Serving Thornton, CO and surrounding areas
Approved
In business since 1998
Free estimates
Warranties offered
"Excellent work, great design partner, would definitely recommend."
+116
Serving Thornton, CO and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1992
Free estimates
Warranties offered
"Windows are good. Work was sloppy. Still finding shards of glass on the floor and the furniture a week after completion. Caulking looks like a third grader did it- including caulking the screen door to the frame. For this type of investment, they should act like professionals."
+24
Serving Thornton, CO and surrounding areas
Approved
In business since 2014
Free estimates
Customers say: Quick response
"I have been hiring contractors for decades and these guys are among the best... and their pricing was excellent. On time, did exactly what they said, great work, great people, when they were finished, the new egress window looked better than I could have hoped, and they covered the room and cleaned to the point you would never have known that I just had the window put in. Can't give them a high enough referral. I can see that it's no coincidence that all their reviews are 5s... just hire them. No question that I would hire them again."
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