Featured

Nex-Gen Windows & Doors Fort Collins | Window Installers Loveland | Entry Doors Greeley & Longmont

Window Installers in Fort Collins, Colorado
Ranked #4 in Fort Collins | Grade B+
4.90 (491 reviews)

Nex-Gen Windows & Doors Fort Collins | Window Installers Loveland | Entry Doors Greeley & Longmont

From its Fort Collins location, Nex-Gen Windows & Doors provides window and door replacement services tailored to Northern Colorado homes. The team guides product selection and manages installations with attention to detail and jobsite cleanliness.

Nex-Gen Windows & Doors Fort Collins | Window Installers Loveland | Entry Doors Greeley & Longmont business photo 1 - Windows in Fort Collins
Nex-Gen Windows & Doors Fort Collins | Window Installers Loveland | Entry Doors Greeley & Longmont business photo 2 - Windows in Fort Collins
Nex-Gen Windows & Doors Fort Collins | Window Installers Loveland | Entry Doors Greeley & Longmont business photo 3 - Windows in Fort Collins
Nex-Gen Windows & Doors Fort Collins | Window Installers Loveland | Entry Doors Greeley & Longmont business photo 4 - Windows in Fort Collins
Show all photos
Why Homeowners Choose This Business

Local showroom support, clear guidance on product options, coordinated scheduling, and installations that focus on fit, finish, and tidy job sites. The company serves a broad area of Northern Colorado from its Fort Collins base.

Service Area

Fort Collins, Loveland, Greeley, Longmont, and nearby communities across Northern Colorado.

Featured Local Business

This featured listing includes fuller business details and a stronger local presentation for homeowners comparing nearby options.

Featured
Featured on ProsGrade
Listing details

This listing includes service information, customer review signals, a photo gallery, and public contact details to help homeowners compare this business more easily.

Featured listings may appear with fuller business details and stronger local presentation.

  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Maintains a competitive standing in this market.
  • Performs at or above the local average rating.
  • Has more review volume than many local competitors.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Renovation Services
  Supplier
  Installations
  Window Replacement
  Window Installation
  Entry Door Installation
  Sliding Patio Doors
  House Window Upgrades
  Energy Efficient Windows
  Window Trim & Sills
  Patio Door Replacement
  Residential Windows
  Door replacement

Residential window replacement, new window installation, entry door replacement, sliding patio door installation, trim and sill updates related to window and door projects, and project consultations.

Reviews

Customer Reviews

Frank Aragon
We love our Marvin windows from Nex-Gen. The entire process from meeting Mitchel Q, who's product knowledge helped us select the best windows for our home. His guidance through the entire process was very much appreciated as well as his pat…
View full reviewShow less
We love our Marvin windows from Nex-Gen. The entire process from meeting Mitchel Q, who's product knowledge helped us select the best windows for our home. His guidance through the entire process was very much appreciated as well as his patience while addressing our questions and concerns.
We had 11 windows, custom sills and an entry door professionally installed by crew lead Nicholas B and crewman Gabe D. They did a wonderful job and made sure we were satisfied with the installation.
The windows are awesome, the sills look great and the entry door is super nice. We enjoyed the entire experience and highly recommend Nex-Gen Windows & Doors in Fort Collins!
Jessica Pendergrass
We went through Costco for a whole new house of windows and a back door slider, and we're long overdue for all because of fear of cost. Mitchell handled consultation and immediately understood our needs and put our fears to rest. The instal…
View full reviewShow less
We went through Costco for a whole new house of windows and a back door slider, and we're long overdue for all because of fear of cost. Mitchell handled consultation and immediately understood our needs and put our fears to rest. The install team of Nick and Gabe was absolutely stellar! They were fast, professional, and detail oriented to a level which pleased even my OCD construction management husband. Noah as Manager was also a complete Rockstar. Bonus points to all involved!
James Gunnerson
Nex-Gen does an excellent job, from sales to installation. Marvin windows are state of the art, in my estimation. Mitchel in sales made us a great offer, the best of four separate estimates. We had 16 windows replaced in our house. The…
View full reviewShow less
Nex-Gen does an excellent job, from sales to installation. Marvin windows are state of the art, in my estimation. Mitchel in sales made us a great offer, the best of four separate estimates. We had 16 windows replaced in our house. The installation team, Eduardo and Luis and the rest, were fast and efficient, professional and courteous. They took great care of our house during the install process and totally cleaned up after themselves. They covered everything up with plastic beforehand; even our surround sound speakers in the family room. Neil Horn managed the project installation, and was there during and after the install to make sure we were completely satisfied. Wow ... I cannot say enough good things about this company and our new Marvin windows.
Nancy Alflen
Everyone was super nice. The installers did an excellent job and were very respectful and polite. 3 hours to put in 3 windows. They cleaned up afterwards too. We had them replace our front door last year and loved it so we started replacing…
View full reviewShow less
Everyone was super nice. The installers did an excellent job and were very respectful and polite. 3 hours to put in 3 windows. They cleaned up afterwards too. We had them replace our front door last year and loved it so we started replacing windows this year. They really work with you to give you what you want. Highly recommend.
Lisa Townsend
I just complete my house window project with Nex-Gen and love them! Friendly, efficient team ( shout to Eduardo and crew, Shon and Cari) and a great product! I had half the house done several years ago and the windows are easy to clean, eff…
View full reviewShow less
I just complete my house window project with Nex-Gen and love them! Friendly, efficient team ( shout to Eduardo and crew, Shon and Cari) and a great product! I had half the house done several years ago and the windows are easy to clean, efficient, sound. So thrilled to have them all in! Now on to the siding!

Write a Review

Share your experience with this business. Reviews are moderated before they appear publicly.

Frequently Asked Questions

Nex-Gen handles residential window and exterior door replacements, including sliding patio doors. Projects can be a single opening or an entire home. They also coordinate trim and sill updates when part of a window or door installation.

Yes, consultations are available to discuss product options, sizing, and project scope. During the visit, you can review timelines and next steps so you know what to expect. The team aims to answer questions about styles, glass packages, and finishes.

Timelines vary by project size and product selections. Smaller projects can often be completed in a day, while full-home replacements take longer and are scheduled in stages. Your installer will confirm the plan and keep you updated during the work.

Yes, the team installs entry doors and sliding patio doors in addition to windows. They can review hardware, glass, and finish options during consultation. Installation includes careful fitment and cleanup.

Service extends across Northern Colorado, including Fort Collins, Loveland, Greeley, and Longmont. If you are nearby but outside these cities, contact the office to confirm availability. The Fort Collins location coordinates scheduling and support.
 Verified Listing

Opening Hours

  • Monday 8:00 AM – 5:00 PM
  • Tuesday 8:00 AM – 5:00 PM
  • Wednesday 8:00 AM – 5:00 PM
  • Thursday 8:00 AM – 5:00 PM
  • Friday 8:00 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed

Request Service

Business Details

Business Rating
4.90 (491 reviews) Featured BusinessPro Listing
Address
5616 S College Ave, Fort Collins, CO 80525
Business Type
Window Installation Service
Website
https://nexgenwindowsanddoors.com/
City Page
Window Installers in Fort Collins, Colorado

Compare more window installers in Fort Collins?

Compare local businesses, customer reviews, and featured providers across Fort Collins.

Compare Fort Collins Window Installers

Location Map