from a Window Replacement Appointment with Nex-Gen Windows and Doors

Thanks For Scheduling A Window Consultation With Us!

Look at the details below to learn about your next steps with Nex-Gen Windows and Doors.


Through decades of working with homeowners, we’ve refined a process that works well for our customers and upholds our standards for transparency, exceptional service, and customer support. From the initial point of contact to the final walk-through, we honor your needs and wishes, respect your time and your property, and focus on delivering results you’ll love.


Let’s Begin

We start with a phone call to collect information about your home, your replacement needs, and your goals. Every project is unique; we learn as much as we can upfront to ensure a successful remodel experience.



We visit your home to get a first-hand look at the project and to familiarize you with our process. We discuss products and innovative solutions, and provide a transparent cost vs. value analysis and detailed proposal.



Our Elite Window Experts take meticulous measurements to ensure a smooth installation. Accurate window measurements also maximize energy efficiency and protect the aesthetics of your home.



You stay informed with periodic updates via phone, email or text. Scheduling changes are sometimes unavoidable due to the manufacturer’s date changes or inclement weather. We keep you posted in real time.



Our installers come and go with minimal disruption to your routine. No need to leave your home; most installations are completed in 1-2 days. Our crew members receive special training and pass background checks.



Upon completion, the lead installation tech does a walk-through final inspection. He provides operating instructions for your new windows and doors and reviews the warranty information.


Let Us Know

We ask that you complete a survey as the final step in our process. Collecting feedback about your experience keeps us on our toes. If we didn’t meet your expectations, we want the opportunity to make it right.

Infinity by Marvin Windows are the Best in the Industry for Colorado Homes

Feel free to watch the videos below to learn more.

Window & Door Replacement Experience

What Are The Best Replacement Windows?

How Do I Get Replacement Windows Installed?

At Nex-Gen, Our Goal Is To Be More Than Just A Consultant. We Consider Our Company A Family, And We Extend This Mentality Out To Our Customers.

We Enjoy Going To Customers’ Homes And Fostering Lasting Friendships.

More Often Than Not, Our Relationships End Up Being Long Term. It Is Always A Joy When We Can Attend A Local Show Or Event And We See Previous Customers.