4.5 
661 *The Angi rating for Window And Door Contracting companies in Johnstown, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window And Door Contracting needs.
*The HomeAdvisor rating for Window And Door Contracting companies in Johnstown, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window And Door Contracting needs.
Last update on March 05, 2026
Serving Johnstown, CO and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1992
Free estimates
Warranties offered
"Everything was perfect. Quick and quality install and I couldn’t be happier with the windows and doors. All the workers were courteous and professional."
+28
Serving Johnstown, CO and surrounding areas
Approved
In business since 1986
Free estimates
Emergency services offered
"We are very happy with our experience with Ross. They care about their customer satisfaction and are committed to quality craftsmanship. We got great doors at a great price, and would strongly recommend / use them again in the future."
+15
Serving Johnstown, CO and surrounding areas
Approved
In business since 2017
Free estimates
Warranties offered
"We were very pleased with their work, timing, and quality of workmanship. We have received many positive comments on the appearance of our home. It is a great feeling to look at the home and know it has been sealed well against the weather and elements. We are very glad we chose a long-life product and an experienced team to install it. We would readily recommend Colorado Siding Repair to anyone who wants a quality product installed well at competitives prices, by folks with great integrity."
+95
Serving Johnstown, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Warranties offered
"They were able to find clips to replace my old window clips. And the price was worth having them install."
+20
Serving Johnstown, CO and surrounding areas
Approved
In business since 2004
Emergency services offered
Warranties offered
"The project included windows and doors replacement, exterior trim, and rain gutter installation. Project was done efficiently and expeditiously. Contractors for all work were very hard working and conscientious, concerned to address my needs and questions. Project manager AJ Smith saw an issue that didn’t meet his standards and immediately and personally rectified it. Very pleased with the end result."
Serving Johnstown, CO and surrounding areas
Approved
In business since 2018
Free estimates
Customers say: Quick response
"I cannot praise this companies work enough. They literally check all the boxes when it comes to a home renovation professional. Clear and timely communication, started and completed the job when promised, very neat and tidy, and did work above and beyond expectations. I would highly recommend them for a egress window install any other services they may provide. As a bonus, their work added $10k to our homes value."
+10
Serving Johnstown, CO and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"I would hire Keith again. He did an excellent job with the soffit repairs."
+15
Serving Johnstown, CO and surrounding areas
Approved (Corporate)
In business since 2000
Free estimates
Credit card accepted
"I did my homework before deciding on where I'd buy my windows. Got three quotes; all very reputable companies. Champion (John) gave the best presentation by far! Very knowledgeable, very detailed with window samples and heat indicators to actually show me Champion windows efficiency. Best price, best financing. Now I know where to buy the next set of windows!"
Serving Johnstown, CO and surrounding areas
Approved
In business since 2015
Free estimates
Warranties offered
"We were very pleased with their work, timing, and quality of workmanship. We have received many positive comments on the appearance of our home. It is a great feeling to look at the home and know it has been sealed well against the weather and elements. We are very glad we chose a long-life product and an experienced team to install it. We would readily recommend Colorado Siding Repair to anyone who wants a quality product installed well at competitives prices, by folks with great integrity."
Serving Johnstown, CO and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
"The workman did a very good job and he pointed out where a couple of windows might need to be replaced, as well as a couple of screens. He wasn't pushy trying to sell me something I wasn't ready to buy at this time."
+20
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