JDI Windows
“Brent was very conscientious, however, Rex came by after and noticed that the glazing bead on 1 side was slightly bowing, and a couple of the bottom cuts are 1/4 to 1/2 inch too short at the factory.”
Best Window Installers in Littleton, CO
24 companies listed · 17 in Littleton · 1 open 24/7 · 12 open weekends · 21 rated 4.5+
Data verified October 27, 2026
Advocate Construction
“I have known Dan Mc Grath at Advocate Construction for quite some time now, and you will not find a more trustworthy, knowledgeable and kind person to assist you with your roofing needs.”
Paramount Siding & Windows
“It was a no pressure estimate, and handful of companies I looked at had a high pressure discount saying “this was the best deal you were going to get, if I walk out the door the the price will go up.”
Gccs Roofing
“Daniel honed his construction management chops helping rebuild and aid hurricane recovery efforts in the southern United States before coming to Colorado.”
American Remodeling
“Today I drove a total of 7 hours on a Saturday to get a new window for an addition that I'm doing on my house and they were kind enough to open up for me.”
ABC Window Cleaning Supply
“As a professional window & gutter cleaner and the owner of Pure Light Window & Gutter Cleaning Service, I have been ordering supplies from ABC Window Cleaning Supplies for over two decades.”
Listed for homeowners in and around Littleton, CO, these 24 companies fit and repair windows. Frame materials, glass options and any credentials shown are taken from company websites; the customer lines are quoted from public reviews.
Area overview: Littleton, CO
17 of the 24 companies we list are based in Littleton; the other 7 serve Littleton from towns including Denver (14 mi), Aurora (17 mi) and Englewood (4 mi). 22 of the companies on this page have a rating, from 4.2 to 5.0 across 7,594 reviews; 13 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (94%), responsiveness (86%) and quality (85%). The topics that come up most in reviews of the companies on this page are "price", "communication" and "crew". 1 is open around the clock; 12 are open on Saturdays and 6 on Sundays. 8 show a license on their websites; 1 lists staff certifications (GAF) and 8 have a BBB rating of A or A+. 14 have ten or more years of experience, the longest 48 years. 1 offers emergency call-outs; 4 offer financing or payment plans; 13 give free estimates; 10 are family- or locally-owned and 2 list coupons or special offers. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Do the listed window companies all have premises in Littleton?
17 of the 24 give an address in Littleton itself; the others serve it from within 25 mi. Many window companies work from a showroom that covers a wide area, so the address tells you little. What matters is whether the crew is employed by them or subcontracted, and who returns for warranty work.
National Home Improvement
“Steve Becker the owner of NHI is simply the best, he is honest, provides quality products and installations and has a team that mirrors Steve's approach to business and customer satisfaction.”
Leading Edge Renovation
“Found them by chance after our previous contractor was trying to get our insurance to pay to re-side our entire house for two sections of flashing essentially.”
Pleasant View Windows & Doors
“Brent was knowledgeable about what was needed and I didn't feel like he was trying to up sell me, not to mention his bid was significantly more competitive than the other two companies that came out.”
See the Light Windows
“From the beginning of the measuring of windows to the install, I had one contact-Brian- who was able to help in all my questions, kept in touch for delivery to installing and who would install.”
Banner Glass Inc
“I have been using Rob and Banner Glass for over 10 years now, not only for my personal home but as a realtor, I refer them to my clients for all of their glass needs.”
K & K Classic Designs
“Ken kept in contact throughout the project and dealt promptly with any concerns.”
Consolidated Exteriors LLC
“I really appreciated how John broke down the bid, different materials options, and the project timeline.”
Shepard Construction LLC
“Wayne was careful while pulling old windows so as to minimize any damage to exterior and was very thorough while sealing up new windows to make sure they were water tight.”
Dunn Construction
“It was our desire to get the roof done so we could install solar before year end to optimize the tax benefit and they made it happen fast, clean and organized.”
Illumine Windows Inc
Still Windows
Colorado Superior Roofing & Exteriors
“They offered for us to choose a new color, met the claims adjuster at the house so I didn't have to, and worked tirelessly on my behalf to jump through insurance hoops and get me paid.”
Renewal by Andersen Window Replacement
“Bradley La Rowe and his crew with Andersen Windows of Colorado showed fantastic workmanship ethic, product knowledge, respectful customer care & communication.”
730 South Exteriors & Roofing
“Shawn came the same day and was able to give me information regarding the state of the roof and what steps to take next which was so helpful as I had not gone through this experience before.”
Angelo & Sons Doors & More
“They were on time, friendly, respectable to my home, and even gave me a referral to someone they had recently done business with, as they seen I was in the middle of a remodel.”
Pinnacle Roofing Associates LLC
“Mike was already in the area and was nice enough to stop by less than a half hour after I called him to check to see if the vent just had cosmetic damage or if there was restricted airflow.”
Dun-Rite Home Improvements
“After using Dun-Rite over 25 years ago at our first home in Colorado Springs, we decided to hire them again to install our new kitchen countertop and tile our back splash!”
J&K Roofing
“The entire process from roof and gutter inspection to the repair quote to working with our insurance company to roof and gutter replacement to cleanup was very painless.”
Why these companies made our list
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