Nex-Gen Windows & Doors

We have looked at the Infinity from Marvin windows three years ago at the Boulder County Home and Garden Show. We met Ted with Nex-Gen Home Exteriors there and were very impressed by him and his product. We had him come out to take a look at our windows and found that Infinity from Marvin windows would be a great fit for our home. We recently had a lot of hail damage and now we are in need of replacing our windows. We called and made an appointment. Ted with Nex-Gen came on time and was very honest and thorough. He is easy to work with as well.

Good price, good windows, good service means overall I had an awesome experience. The first thing people do when visiting is rave about our new front door. And we are already so much cooler. I know this winter we will be warmer!

Our old windows were all different kinds with all different installations. The guys came and worked with it, making the new windows fit well and helping by adding some strips of wood where needed. Also we couldn't get the blinds down because they were screwed in with a hex screw that was stripped out. The guys got them down and we now have them back up with a phillips screw. We were grateful for their help. I recommend this company! Jacque Mahan (another satisfied customer)

The professionals at Nex Gen are great to work with! (Ted, Rick, Joe, Alex, Hunter, & Dell). We had our kitchen windows replaced with Infinity by Marvin & love them. They look great (stained to match our wood frames), and work great too. The latches were a bit stiff to start with, but the technician came out & fixed that for us promptly. We're getting our sunroom windows done next.

n May of 2018 we had Nex-Gen Exteriors install 22 windows in our Mountain log home in Glacier View Meadows in Colorado using the Infinity by Marvin windows and we couldn't be happier with the product, installation and the company spirit. The fit and finish of their product is amazing which was more difficult because of our log home design. This was a large job so we took several quotes from competitors but found their product the best for our needs and at a price that was quite reasonable. From start to finish, Nex-Gen (including Ted, Rick, Brent and Trent) were highly professional and trustworthy and I can easily recommend them to you for your next job - in fact, they are the only ones I would trust. They also have the best warranty and a great company behind them in Marvin. I know of horror stories of wild sales pitches and promises from other window installers (we saw some...

We just had all of the windows and glass doors in our home replaced by Nex-Gen Exteriors. The entire process from selecting the Marvin Infinity replacements in the showroom, measuring each area for a precise fit, and installing the new windows and doors went wonderfully. Everyone at Nex-Gen was available for questions and promptly answered them. The installation team was very knowledgeable and nice to work with and they did a great job despite the challenging terrain around our home. We highly recommend both Marvin Infinity and the Nex-Gen team.

We just had a large sliding door installed at our home. We were concerned about possible damage to the hardwood floors and the stucco exterior. Everything went smoothly. The installers were very careful to protect the floor and a couch that was nearby. They spent all day taking out the old door and putting in the new door. It was apparent that they took great care in the whole process. As the new door was thicker than the old door, they modified the hardwood floor and the surrounding wall. You would never know as everything was professionally finished. They cleaned up all of the mess and even washed the new door window. They spent time explaining how this new door would keep rain from coming in (unlike our old door that leaked badly). The showed us how to operate the new door as it is quite different from our old one. The Marvin product is much sturdier and glides well in...

The Nex-Gen showroom was a great way to envision which window option would be best for our home. We did all 39 windows in our home of 24 yrs. They look great! All customer service was excellent and the window crew great to work with, very knowledgeable (even made some quick fixes to a sticking or not shutting door for us) after they got tired of dealing with them! They were very careful of garden plants and both the inside and outside look wonderful! We are very pleased and look forward to many years enjoying our new windows!