Nex-Gen Windows & Doors

We looked at 4 different companies for our door install. We had an old, unusual sliding door system and no doggie door. Nex-Gen (Teri, Eduardo, and Angelo) were awesome and helped us get a custom French door with built-in doggie door. The doors arrived earlier than expected and were installed quickly. Love our new doors! Will definitely use Nex-Gen again.

We couldn't be happier with our Nextgen Infinity windows. They are beautiful, easy to vent and clean and the installers were top-notch! This local company has wonderful customer service, so we are repeat customers.

I purchased a storm door from Nex-Gen. it was a very smooth transaction and it was a pleasure doing business with them. From the very beginning and on through to the installation everyone was very customer oriented and professional. I will do business with them again and I highly recommend them.
Andy Grey

This time we had one window replaced. Last job we had 8 windows replaced. There were different instances & both times they did a great job. Install was good & cleanup was good too. They were very courteous & helpful. Our sales rep was Ted Rajewski & he was great at his job, very nice guy! I would definitely hire them again for future work. Thanks to all!🎄

Nex-Gen installed several windows and two doors-including an oversized patio door. Several windows were a special challenge as they faced open space with a high hillside drop off. I worried it would be impossible to replace them correctly. Nex-Gen worked hard to get it right and did a perfect job. From start to finish, the customer service and communication was excellent. Justin, Neil, and Roberto were fantastic to work with. Their background in construction was a huge help when figuring out what needed to be done. We felt respected and that they were committed to recommending only what was best for our situation. Roberto and the installation crew also did great work. Everything was placed and sealed perfectly with a beautiful result. We no longer worry about the high winds and sideways rain we sometimes get on the ridge leaking around our windows.
They respected our...

Very happy with the new windows, install done in two days with good attention to detail. The team was very quality focused. Thanks for the hard work and support!

The ordering process and installation was smooth and easy.

After purchasing our home 2 years ago, we knew most of the windows needed replacing. Then the hail came, so we bit the bullet and decided to replace all 15 windows and the patio door as well. We started our homework and research and came up with 4 different companies to have come and show us their product.
As a daughter of a Sears salesman during years of 1970 to 2002, I use to watch him sell appliances to every walk of life. He was one of the few salesmen that tried to sell you what YOU wanted and could afford, not what THEY wanted him to sell you. And he was honest. Still a salesman, but honest. This is what I found in Ted Rajewski. He was efficient, smart and honest.
Everyone from Janice, to Angelo to gentleman that came to measure the windows to the installers. They were all very, very easy to communicate and talk with, which meant things were done efficiently and...

We received excellent service in replacing two large windows in our house. Measurement was expertly done and the windows were delivered on time. The price was reasonable. The installation crew were prompt and both the installation and its supervision excellent. We know because the weather turned really cold so we knew for sure. We have also had a followup visit. This is a local business so I know I can contact them for any additional followup I want.

Their windows appear to be good units. Initially, we had trouble with drainage on slider windows that was eventually remedied, but it took a number of visits to achieve a solution. In the end, it was determined to be a manufacturer-caused issue that once analyzed, was easily remedied. We had damage from a bad hail storm and they lived up to their warranty policy with replacement/repair.

I would not hesitate to recommend this company. Ted Rajewski went above and beyond to help me design and choose a new front door! He was prompt in responding to my texts and came to my home more than once to make sure I was comfortable with my decision. He was professional, knowledgable and friendly. As a customer I was listened to and valued.

Several years ago, Nex-Gen installed Marvin windows in our home. We were extremely pleased with the care and professionalism of the team. Recently, we had an older Marvin patio door with a slight problem. We contacted Nex-Gen. Cari, the receptionist, was very nice. Mike called to set up an appointment to look at the patio door. Again, we were very pleased with the service provided.

We reached out about replacing our windows. We had other quotes but felt pressured and that they weren't listening to what we wanted. Then Ted came over, listened to what we wanted, quoted what we wanted and didn't pressure us into more. Fast forward a couple of months and we were ready to move forward. Ted came back, answered our questions, never pressured us and never over sold us! We are so happy to be working with Ted and NexGen windows! We highly recommend them!!

Windows were installed and I cannot recommend them enough!! The installation was quick and went smoothly. Neil, Shane and Shanoin (sp?) were great with the installation!!

Fast, high quality product. Would recommend Nex-Gen to anyone.

We had a sliding glass door replaced this summer and we are so happy with how it turned out. They showed up on time and got right to work. There were 3 guys. It did not take them long at all. You could tell they all had their specialties and worked very well together. It was impressive how smooth it went and we love our new door! I would highly recommend this company.

Good quality products and quick work during the installation. Personnel were responsive to concerns. Scheduling the installation was a bit challenging.

Years ago i installed replacement windows fro, NEX-GEN. So when I needed a new storm and main front door, i called them. After talking with other companies, I chose Nex-Gen. I am very pleased. The doors are tight, strong, substantial and easy to open and close. They feel and look great! The installers were pleasant and did a good job.

Neil and his group did a very good job installing and cleaning up after the work was done.

The service was great and the installer, Mike, was very professional and courteous.

I had the pleasure of meeting a couple of Nex-Gen employees - Cari and Mike, when my vehicle broke down stranding me on 25. Cari and Mike stopped to see if their could help and were incredibly gracious and patient with helping me out of a difficult situation; even going out of their way to give me a ride to Denver. I’m from Virginia and in Denver visiting my daughter and haven’t used Nex-Gen services, but if Cari and Mike are an example of the quality of Nex-Gen employee (and I suspect since the company has a BBB 5Star / A+ rating the owner - Brent, is very selective with picking quality, conscientious folks for his Teams - Cari and Mike are just an example), I recommend if you’re looking for services they provide to give them call. I have a feeling you won’t be disappointed.

We recently had Nex-Gen install five new windows in our basement; we had all of the upstirs windows replaced earlier; so this is our second time with Nex-Gen. We could not be happier with the product, their installers and their personal services. Our installers (Ed and Aaron) worked tirelessly and with excellence and kept us informed about each step in the install process. Neil was here three times and followed up with us to ensure we were happy with every detail of the job. This is a GREAT company with people that care about their customers and stand behind their product. We would HIGHLY recommend Nex-Gen to anyone looking to replace their windows and/or doors!

Highly recommended. I would use them again in a heartbeat

Nex-Gen did a wonderful job start to finish. The sliding glass door was just what we ordered and the installation went smoothly. Steve, Arthur and Neil were on-site to make sure the job was done correctly and that we were were satisfied. Definitely a positive experience and a great result for us.

Fantastic job and great service! I would recommend Nex gen to everyone.

What an amazing experience. Over the last couple years we have had so many bad experiences with other companies. We had a new garage door installed (terrible craftsmanship) a new front door (screen door still isn’t right after countless retry’s) a new patio door ( so bad we had Next -Gen replace it after only one year). So we were really hoping that this window replacement would somehow not be a disaster. That’s when we found Next-Gen. from the time Dan the sales representative stepped into our house til the last window was installed we have been so impressed. Great product, great installation. Everything works great and we now love our new patio door. If you are looking for a great window door replacement Next-Gen will deliver!!

We love the windows! The entire house was finished in one day and they cleaned up great. We have no drafts or streaking even after all the rain and wind. And the light is amazing, not to mention the price. We are so happy, we've just ordered doors. Highly recommend

Nex-Gen doors are high quality and come with a lifetime warranty! We had great, thorough service from Thomas and Xavier for some maintenance needs on our front entry door. So happy with this company and product!