Restoration Builders
“He was very professional and even when I explained to him that I was a single mom and money was tight he just simply said if it's not for you no worries”
Best Window Installers in Westminster, CO
24 companies listed · 6 in Westminster · 4 open 24/7 · 18 open weekends · 22 rated 4.5+
Data verified October 18, 2026
KV Windows Inc.
“Would recommend KV Windows without hesitation - they did a fantastic job, went above and beyond in taking care of our interior & exterior during the process, and made the whole experience as easy as possible for us.”
USA Property Services Inc.
“They applied fixes in no time with the best quality, they definitely went the extra-mile doing additional inspections to make sure other parts of the house would not be affected, totally recommended!”
Weaver Construction
“My wife and I have worked with Weaver Construction on several projects (painted a house, bar remodel, roof repairs), and certainly will on several more.”
House Installation & Remodel & Repair Handyman Service
“I met George in the hospital, he was a respiratory physician in the hospital, and I knew he was doing house repairs during the chat, so I asked him to help me lay the wood floor, and he and his wife completed the floor update of our house , they work...”
Colorado Roof Experts
“He explained the process and met with the insurance adjuster.”
Listed for homeowners in and around Westminster, 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: Westminster, CO
6 of the 24 companies we list are based in Westminster; the other 18 serve Westminster from towns including Denver (13 mi), Golden (13 mi) and Thornton (7 mi). 23 of the companies on this page have a rating, from 4.3 to 5.0 across 8,444 reviews; 19 have 50 or more reviews and 22 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (92%), responsiveness (83%) and quality (80%). 4 are open around the clock; 17 are open on Saturdays and 9 on Sundays. The services the companies on this page list most often on their websites are gutters (5), siding (5), windows (5), commercial roofing (4) and painting (3). 4 show a license on their websites and 9 have a BBB rating of A or A+. 11 have ten or more years of experience, the longest 48 years. 4 offer emergency call-outs; 11 offer financing or payment plans; 12 give free estimates; 9 are family- or locally-owned and 4 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 Westminster?
6 of the 24 give an address in Westminster itself; the others serve it from within 20 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.
Hardy Window & Door
K&G Window Pros
“The sound difference alone is vastly noticeable but ive already noticed within a few hours of the windows being installed my furnace hasnt needed to kick on nearly at all to keep the house stable and warm.”
Colorado Superior Roofing & Exteriors
“I felt well taken care of during the repair process and highly recommend Kevin Oxley, Dominic Spaulding, and the rest of the team at CSR&C to anyone who needs roofing/construction work.”
Renewal by Andersen Window Replacement
“This is the second time that we've replaced windows; we now have all new windows, and they have just continuously done a fantastic job, even servicing screens and anything that has malfunctioned.”
Angelo & Sons Doors & More
“We have had a great experience with Angelo and Sons from our first time talking to Kathy about removing our storm door to Michael and Angela showing up right on time and professionally removing our door.”
730 South Exteriors & Roofing
“I could tell right away that he was well informed in all aspects related to roofing and he was also able to answer all of my insurance questions since this was the first time I have ever issued a claim.”
Window World
“The new windows have made my bedroom and living room a lot more comfortable to live in and they have made a great improvement in keeping the cold out and the warmth inside better.”
Ameritech Windows
“We realized the other night after opening this window for the first time, it's because there is a small gap up top and the window doesn't quite fit the frame.”
J&K Roofing
“They also had contractors replace the gate to my back yard, replaced vinyl siding on the front of the house, and replaced the garage, aii for what the insurance company had awarded us.”
Roper Roofing & Solar
“Roper came to the rescue, then after the wind storm about a month ago, having just recently finished the hail repair, they fixed tiles that had shifted at low cost since we had just done such a major repair.”
Roof Worx
“Camil from Roof Worx truly cares about his customers, very good communication and very well prepared for situations always stands to represent his clients in the best way possible and has their best interests at heart!”
Mighty Dog Roofing
“Jorge, Josh, and Greg are very personable, always willing to go above and beyond to make sure their customers are taken care of, and always making sure their crews are providing the best quality!”
Pioneer Home Solutions
“My insurance company was not as helpful as Ben Pendrick with Pioneer who acted in my utmost best interests in explaining how to get me through this daunting process to completion.”
Kelly Construction
“Very pleased with the customer service, clean up of the work crew, respect for my customers that kept coming and going all day, and overall value for the excellent work that they did.”
Koala Exteriors
“We had a small section of siding to repair on our second floor due to water damage plus we added a short section of gutter to prevent the damage from happening again.”
Lakewood Glass and Windows
“Please use Lakewood Glass who is locally owned and know everything about their work is honest and professional, and obviously my experience is not an exception, but an every day standard.”
UB Code Roofing +
“He was great and met with the insurance appraiser both times and then helped guide us through the process as the insurance appraiser was not the most helpful individual nor was he looking out for our best interest.”
Refined Exteriors
“Whether it be an insurance claim from hail or other damage or you are simply wanting to upgrade the aesthetics while improving home safety and resale value, this is THE company to work with.”
Why these companies made our list
Is this page useful? Yes
No
Is there anything wrong with this page?
