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JDI Windows was established in 1997 with a team who has over 50 years combined experience in the Denver window and door industry. We have a long-standing tradition of family-owned business where values of integrity, customer service, and hard work define our company. More than half of our business is from repeat customers and referrals. Customer satisfaction is very important to us and we are proud to display several of our customer testimonials on our website to stand behind that claim.

If you decide to hire us for your next window replacement or repair project, you can expect one of our trained professionals to meet with you so we can better understand and evaluate your home improvement request, explain the best and most affordable options to you so you can make an informed decision, and then we will perform the work the right way, the first time. Your satisfaction is GUARANTEED! Contact us today for a free estimate.

Offices (1)

  City Littleton, CO
  Zip code 80120
  Address 5204 South Prescott Street
  Phone (720) 427-4477
  Today 09:00 AM ÷ 09:00 PM    

Services (2)

Window Installation

Window Installation

If yours are beginning to look a little worse for wear or they’re no longer fit for purpose, then it might be time to look at window installation options in Denver. Fortunately, we have the very team to help undertake that task. From answering your initial questions and talking through your options through to final installation and ensuring you’re happy with the service, we can do it all. What’s more, our friendly team has several years of experience installing windows throughout Denver, which means you can rely on us to get the job done right the first time, every time.
Amerimax Windows

Amerimax Windows

Amerimax windows form part of a full range of Amerimax products, including patio doors, pet doors, and more. We can offer bay and bow windows, projected sashes, and even double and single operating sashes. What’s more, if you’re looking for doors to match your Amerimax windows, you can rest assured we can offer both sliding and hinged patio doors to suit your exact requirements.
Lynn L.

Lynn L.

Nov 26, 2018
We had all of our windows replaced by JDI Windows and we are very pleased with the finished product. Rex came out for the no nonsense bid and did not waste our time with a two hour presentation. He is straight to the point no sales pitch. He will disclose the inventory cost, labor, cost of materials and gross profit of each job. I appreciate the visibility... Full review ›
Cam C.

Cam C.

Sep 20, 2018
Can't say enough about the character of JDI and the Owner Rex. Rex was extremely helpful on a full home window replacement that my mother in law was doing on her home. I will definitely be using Rex and JDI for future window replacements and would recommend them to anyone else looking for a reliable contractor. Full review ›
Ryan P.

Ryan P.

May 10, 2018
I recently requested a quote from Rexford and JDI Windows. Rex was very responsive, got back to me quickly and I had a quote in hand in just a few days. The quote was very competitive for a very nice quality vinyl window made in Ft Collins. I ended up going with a company my roofer introduced me to, but it wasn't an easy decision. If I had a question... Full review ›
Patrycja Carter

Patrycja Carter

May 02, 2018
My first major home improvement was completed by JDI about a year and a half ago when I decided to upgrade my old aluminum windows, a total of 9 windows and a sliding door.

Let me tell you: the crew rocked! Everything was completed in one day and the guys were so neat, they vacuumed and wiped and cleaned up after themselves as they progressed... Full review ›
Gregg P.

Gregg P.

Apr 27, 2018
JDI replaced two sliding glass doors for us a week ago with Amerimax glass doors. We're extremely happy with our experience with JDI from the initial quote all the way through installation!

When we originally called JDI we thought we needed several windows replaced along with the doors. Rex came to our home to provide an estimate and... Full review ›
Donna W.

Donna W.

Apr 07, 2018
We replaced several windows in our home with Amerimax windows which we purchased and had installed by JDI. Wes was extremely helpful in helping me make final decisions on the style and size of the windows. It wasn't just a straight replacement of like style of the existing windows.

In our great room, we had a large slider window that was... Full review ›
Valeria K.

Valeria K.

Dec 04, 2017
We loved working with Rex and his team! They are so professional, responsive and handy when it comes to windows installation. We would highly recommend their service to anyone looking for a knowledgeable team that can provide guidance on the best windows in Colorado. The value was also wicked good, thanks Rex and JDI Windows! Full review ›
Chuck Cordova

Chuck Cordova

Oct 25, 2017
I had about 5 different bids on replacing all the windows on our house. Rex came in and not only had an extremely fair bid but gave us window ideas we had not even considered. We went with his company and his design ideas and couldn't be more pleased! Very professional, on time, and on budget, no surprises. Highly Recommended!! Full review ›
Sherry D.

Sherry D.

Oct 02, 2017
This vendor JDI Windows is amazing. The customer service is the best. They are extremely efficient and prices were way better than anyone else. We almost went with Home Depot, or Anderson thankful we chose JDI instead. I couldn't believe how well they run their business. When they come to your house to install they are polite, and install with perfection... Full review ›
Very impressed with the crew that came and installed our new windows this week!! They did an amazing job and were very professional. The windows look amazing and I can already tell the difference in the temperature in our home. Would absolutely recommend!! Full review ›
Katie Welfare

Katie Welfare

Jun 19, 2017
JDI Windows was fantastic to work with. After interviewing multiple window companies, we chose to use JDI based on their professionalism, timeliness and reviews. They only did four windows for us but worked in a tight space and were in and out within four hours! They required no clean up behind them or touch up - they were efficient and pleasant to... Full review ›
Randy D.

Randy D.

May 16, 2017
I sent in an email request for a quote. JDI replied within a day and set up an appointment. The person who gave us the estimate was very practical and didn't try to upsell us. He did some rough measurements and gave us a clear price within an hour.

The installation went smoothly. We had one minor problem that JDI resolved within a... Full review ›
Shane O'Neill

Shane O'Neill

Mar 24, 2017
I had a great experience working with Rex. I am in the process of selling my home. The house backs up to a busy street. There is a lot of background noise. Rex gave me a few good solutions for abating the noise from passing traffic. It is nice to work with someone who has the customers best interest at heart. Some of the solutions which he provided... Full review ›
Chris S.

Chris S.

Jul 05, 2016
Great company! Great experience from the initial phone call, to meeting with Rex for a quote, and the removal of the last spec of dirt removed by Darrin and his crew, and they responded promptly to take care of a small issue with trim.

The windows make a HUGE difference with the temperature control and sound in our house.
Full review ›
Kristin B.

Kristin B.

Jan 20, 2016
Absolutely great experience with JDI Windows! From the first meeting with Rex to the final installation, I am so impressed. I had other quotes that were up to 75% higher and without the customer service and ease of working with a truly local company.

I have a 130 year old house in the Highlands and the difference is amazing - not to... Full review ›
Tim Sinks

Tim Sinks

Nov 06, 2014
I live in a 40 year old house and was in need of new windows. I figured the process would be painful, having to get estimates, take time off work, big cost, etc. I received 4 estimates and what I really liked about JDI was how Rex was very upfront about the process, window quality, and pricing. One thing that drive me nuts about a few of the previous... Full review ›