Speak with a Nex-Gen expert today:
Make a statement within your budget...
Give Your Home a Grand
Entrance, For Free!
Upgrade to a designer-level, ProVia entry door at no additional cost*
Book a call now to:
Lock in your Free Upgrade
Select your Dream Entry Door
Get 0% Financing for 12 months
Get a Total Quote & Timeframe in 24 Hours
Lock in My Free ProVia Entry Door
Make a statement within your budget...
Give Your Home a Grand
Entrance, For Free!
Upgrade to a designer-level, ProVia entry door at no additional cost*
Book a call now to:
Lock in your Free Upgrade
Select your Dream Entry Door
Get 0% Financing for 12 months
Get a Total Quote & Timeframe in 24 Hours
Lock in My Free ProVia Entry Door
How it Works
Schedule Your Call with a Nex-Gen Expert
Assess All Aspects Of Your Upcoming Project
Receive your Estimate & timeline within 24 hours
lock in Your 0% financing for 12 months
Receive your dream entry door at no additional costs**
How it Works
Schedule Your Call with a Nex-Gen Expert
Assess All Aspects Of Your Upcoming Project
Receive your Estimate & timeline within 24 hours
lock in Your 0% financing for 12 months
Receive your dream entry door at no additional costs**
Why Choose Nex-Gen?
You deserve to work with a team who can predict the unique challenges you might face before the renovation starts. In Colorado, those challenges can be extensive.
We know Colorado. That’s why we’ve specifically curated our windows, doors, siding, and installation techniques to withstand the harsh Colorado weather and the harsh UV rays, temperature fluctuations, and hail damage that come along with it.
Since our founding in 2000, our top priority has been to provide the best for our customers. This standard for superior customer service is the cornerstone of what we do and is why we have earned a 94% customer satisfaction rating.
"Simply put — we are more than a business — we are a family. By choosing Nex-Gen, you become a part of the family as well."
"Simply put — we are more than a business — we are a family. By choosing Nex-Gen, you become a part of the family as well."
Why Choose Nex-Gen?
You deserve to work with a team who can predict the unique challenges you might face before the renovation starts. In Colorado, those challenges can be extensive.
We know Colorado. That’s why we’ve specifically curated our windows, doors, siding, and installation techniques to withstand the harsh Colorado weather and the harsh UV rays, temperature fluctuations, and hail damage that come along with it.
Since our founding in 2000, our top priority has been to provide the best for our customers. This standard for superior customer service is the cornerstone of what we do and is why we have earned a 94% customer satisfaction rating.
What are people saying about us?
From start to finish our experience was exceptional! We had 27 windows installed and siding to match existing siding for half of our house. Every crew that came out was professional, on time, non-intrusive, friendly, and caring. They were all experts in the job they were performing.
- Cindy K.
Recently had Nex-Gen replace an old window in our house. Very happy with the installation and the window itself. Their staff is very professional, responsive to questions and friendly. I would highly recommend this company, especially because they are local.
- Jessica C.
Nex-Gen recently installed new exterior doors on my home. From start to finish, I had a great experience with this company. The people at Nex-Gen provided a winning combination of high quality products, expert installation and exceptional customer service.
- Larry S.
- Kami L.
What are people saying about us?
From start to finish our experience was exceptional! We had 27 windows installed and siding to match existing siding for half of our house. Every crew that came out was professional, on time, non-intrusive, friendly, and caring. They were all experts in the job they were performing.
- Cindy K.
Recently had Nex-Gen replace an old window in our house. Very happy with the installation and the window itself. Their staff is very professional, responsive to questions and friendly. I would highly recommend this company, especially because they are local.
- Jessica C.
Nex-Gen recently installed new exterior doors on my home. From start to finish, I had a great experience with this company. The people at Nex-Gen provided a winning combination of high quality products, expert installation and exceptional customer service.
- Larry S.
- Kami L.
Our Lifetime Installation Warranty
At Nex-Gen, we take it a step further. We go above and beyond your expectations both in the quality of the products we provide and the effectiveness of our installation process.
That’s why we offer a no-questions asked, Peace of Mind Protection Warranty on almost all of our products.
Unlike traditional warranties, ours lasts as long as you own your home.
Our Lifetime Installation Warranty
At Nex-Gen, we take it a step further. We go above and beyond your expectations both in the quality of the products we provide and the effectiveness of our installation process.
That’s why we offer a no-questions asked, Peace of Mind Protection Warranty on almost all of our products.
Unlike traditional warranties, ours lasts as long as you own your home.
Our Formula For Success
Assess
Let us know when we can stop by to view the space, discuss your needs, and provide you with a free quote.
Design
Compare our available styles, designs, and functions with a Nex-Gen experienced design consultant.
Install
Relax knowing the installation will be quick and painless with no mess or damage left behind.
Our Formula For Success
Assess
Let us know when we can stop by to view the space, discuss your needs, and provide you with a free quote.
Design
Compare our available styles, designs, and functions with a Nex-Gen experienced design consultant.
Install
Relax knowing the installation will be quick and painless with no mess or damage left behind.
A Trusted Partner in Colorado
Not only are we a trusted face in your community — we are the trusted partners of a national brand, Infinity © from Marvin ©. This window manufacturer ranks #1 in customer satisfaction for its quality and longevity and considers us Diamond-level partners in the windows industry nation wide.
Our Promise to You
Transparent Interactions
We don’t believe in scare tactics or hidden fees. You’ll receive a detailed proposal with no hidden costs, no disclaimers, and best of all, no surprises.
Open Communication
We don’t leave room for surprises. We share our process upfront, then deliver on our promise. The job doesn’t end until you’re completely satisfied with the results.
Specialized Knowledge
40 years in the industry guarantees we’ve dealt with every imaginable scenario. Above all, we’re problem solvers who pair your unique issue with the best solution for your home.
Our Promise to You
Transparent Interactions
We don’t believe in scare tactics or hidden fees. You’ll receive a detailed proposal with no hidden costs, no disclaimers, and best of all, no surprises.
Open Communication
We don’t leave room for surprises. We share our process upfront, then deliver on our promise. The job doesn’t end until you’re completely satisfied with the results.
Specialized Knowledge
40 years in the industry guarantees we’ve dealt with every imaginable scenario. Above all, we’re problem solvers who pair your unique issue with the best solution for your home.
Our Services
If you’re looking for new windows, doors, or siding, we would love to help. We partner with homeowners in Colorado’s Front Range, southern Wyoming, and the Colorado Springs area. We’re here to help you create a comfortable and stylish home while increasing the value of your investment.
Windows
Front Doors
Patio Doors
Siding
A Trusted Partner in Colorado
Not only are we a trusted face in your community — we are the trusted partners of a national brand, Infinity(R) from Marvin(R). This window manufacturer ranks #1 in customer satisfaction for its quality and longevity and considers us Diamond-level partners in the windows industry nationwide.
Make A Grand Entrance For Free
Nex-Gen provides exceptional window and door replacement services to homeowners along Colorado’s Front Range and in southern Wyoming. Customers trust our professional expertise and guidance, and value our superior Infinity from Marvin Windows product and reliable installation, support, and service.
Our Services
If you’re looking for new windows, doors, or siding, we would love to help. We partner with homeowners in Colorado’s Front Range, southern Wyoming, and the Colorado Springs area. We’re here to help you create a comfortable and stylish home while increasing the value of your investment.
Windows
Front Doors
Patio Doors
Siding
Make A Grand Entrance For Free
Nex-Gen provides exceptional window and door replacement services to homeowners along Colorado’s Front Range and in southern Wyoming. Customers trust our professional expertise and guidance, and value our superior Infinity from Marvin Windows product and reliable installation, support, and service.
© 2022 Nex-Gen Windows and Doors | 3600 Mitchell Dr. Unit 50C Fort Collins, CO 80525