Worker wearing a blue shirt and cap installs a window in a white house exterior during daytime.
Happy family sitting on a blanket in the garden outside a white house with blooming pink flowers.
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Window & Door Shopping Made Simple

No sales pressure. 
Just windows you'll love forever.

Bringing 20 Years of Expertise to Tennessee!

Our service areas have expanded to both the Greater Nashville and the Greater Chattanooga locations. Experience the same premium craftsmanship and Infinity by Marvin products that have defined our work for over two decades

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Stress-free buying process

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Enhanced views inside & out

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Confidence you made the right decision

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Replacing your windows can be overwhelming and confusing. 

We can help you avoid…

  • High-pressure sales tactics
  • Getting stuck with the wrong type of windows
  • Diminished light and views
  • Your home looking worse than before

We Do Things Differently

We know how confusing buying windows can be. That's why we've helped thousands of homeowners choose the beauty, comfort, and lasting value of Infinity by Marvin fiberglass windows and doors.

Our Fiberglass
Windows

NG Windows exclusively offers Infinity by Marvin fiberglass replacement windows. Infinity Windows utilize the patented Ultrex®process that combines the best in energy efficiency, durability, and beauty.

Our Exterior
Doors

NG Windows offers a variety of custom and decorative door options. Whether you are looking to replace your main entry door, French, or back patio door, we have a full range of choices available. We have over 50 doors on display in our showroom.

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Special Offers

Take advantage of this limited time special!
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Financing Options

Ready for an upgrade?
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Gallery

Take a look at some of our recent projects.

Glenn Burns standing in front of Infinity by Marvin windows

Glenn Burns

We are Glenn Burns' preferred window company.

What our Customers are Saying

4.9 Stars (794 Reviews)

NG Windows replaced our front door in 2025 and we were quick to return to them for our windows in 2026. NG Windows absolutely transformed our home with their Infinity Fiberglass windows and Phoenix Doors. Brian, Felix and Peter were great installers and communicators, the short older skinny man...
NG Windows replaced our front door in 2025 and we were quick to return to them for our windows in 2026. NG Windows absolutely transformed our home with their Infinity Fiberglass windows and Phoenix Doors. Brian, Felix and Peter were great installers and communicators, the short older skinny man who measured was also very nice too. I was most impressed when our first window was installed and the room was cleaned, put back together and vacuumed. It was an impeccable customer experience from start to finish.

Mackenzie Fidati

I’m impressed with the entire experience with NG Windows, from the first conversation to the finished installation of our new front door. The representative, Kane, who came to our home, walked us through the options, and the team kept us informed while they made and custom-painted the door....
I’m impressed with the entire experience with NG Windows, from the first conversation to the finished installation of our new front door. The representative, Kane, who came to our home, walked us through the options, and the team kept us informed while they made and custom-painted the door. Eddie, Joey, and Fernando did a fantastic job with the installation. The craftsmanship was excellent, and they matched the paint on the new molding to the trim both inside and outside our home. Everyone was professional, the communication was great, and the installation went flawlessly. I’d highly recommend NG Windows to anyone looking for a new door or windows.

Stephen Chip

We recently had 37 windows replaced by North Georgia Windows, and the entire experience was outstanding. We chose them over competitors because of Infinity from Marvin’s superior product quality and brand recognition, along with excellent reviews from our neighbors. While they are pricier than...
We recently had 37 windows replaced by North Georgia Windows, and the entire experience was outstanding. We chose them over competitors because of Infinity from Marvin’s superior product quality and brand recognition, along with excellent reviews from our neighbors. While they are pricier than vinyl alternatives, you truly get what you pay for. Planning to stay in our home for at least another five years, this was an investment that already pays off in immediate quality and long-term property value. Our sales rep, Denver, was fantastic and highly personable. He kept in constant communication with us up until the project handoff and even followed up after the installation was complete. The installation itself was seamless thanks to Jimmy, the Project Manager, who was timely and communicative. When the team realized they needed extra hands to finish the massive 37-window job in a single day, Jimmy coordinated for crew members from a completed job to come over and help. That level of efficiency and problem-solving is rare. The premium quality of these windows completely outclasses vinyl. The new front casement windows look beautiful, and we can already notice a distinct difference in noise reduction and energy efficiency. If you want a superior product and a team that executes flawlessly, I highly recommend NG Windows.

Austin Hope

My cottage style condo had original builder grade windows that were over 30 years old. I spent several weeks listening to sales pitches from 6 different companies. I had literally heard it all and narrowed down to 2 options but still hadn't committed. Let's face it: there's no such thing as an...
My cottage style condo had original builder grade windows that were over 30 years old. I spent several weeks listening to sales pitches from 6 different companies. I had literally heard it all and narrowed down to 2 options but still hadn't committed. Let's face it: there's no such thing as an inexpensive window project. I saw the promotion at Costco in Brentwood and decided to check it out. I'm in love with these windows and doors! The textural surface is amazing. When you run your hand along it, it's like touching finely polished high end furniture. How many times have you run you hand along the surface of a window frame just because it feels great? There were 3 deciding factors in this purchase for me. #1 The quality of these products surpassed everything else I'd seen. In fact, I like these better than ones I installed at a different home 10 years ago. They are hands down better than the name brand custom products you see advertised . These are precision fitted and simply look beautiful. I walk around my condo community knowing that nothing else compares. The only glitch in my order was that the lock set I ordered wasn't included with installation supplies. No problem. Without question, the crew leader got on the phone and located the exact hardware at a local supplier. Before leaving to get the lock set, he introduced me to the crew team leader and the guy who was most fluent so that I knew who to speak to in his absence. #2 The 6 man installation crew was fantastic! They arrived at exactly the time scheduled and blew through all windows and door replacements in under 5 hours. No smoke breaks or slow walking with these guys. They were all work all the time. When the crew arrived, I requested that they do the window my home office first. Throughout this event, I was able to complete my computer work from home with only minor interruption. Once the office window was done, I went in and closed the door to contain my dog. We continued with our normal day while the rest of the house was completed. At the end of the project there were no remnants of anything left over. They borrowed my vacuum to do the living room carpet on the way out. The next day I noticed half a bottle of water left in my garage where the guy didn't even stop long enough to drink the whole thing on a 95 degree day. One of my neighbors asked me where I found that crew because she'd never seen such hustle on an installation job. #3. I saved the best for last! The promotional offer gave me 10% of my purchase price in the form of a Costco gift card. My new high end range is in transit right now. I've already done some in store Christmas shopping. As an Executive Member, I'll get even more rebates early next year. This purchase is the single most satisfying home improvement work I've ever done.....and that includes two custom homes built with my spouse. If I had it all to do over again, I wouldn't waste my time with the other 6 companies.

Claire Karas

This company is OUTSTANDING! We had painted our builder installed Vinyl/wood windows a dark color and they ultimately warped letting lots of bugs, dirt etc into the house. We decided to get new windows and interviewed the national firms you would expect. NG Windows represented Marvin...
This company is OUTSTANDING! We had painted our builder installed Vinyl/wood windows a dark color and they ultimately warped letting lots of bugs, dirt etc into the house. We decided to get new windows and interviewed the national firms you would expect. NG Windows represented Marvin Infinity windows. The sales person was great, personable, informative, and no pressure. Their pricing was fair, and we liked the product significantly better than the other two vendors. However, the proof of the pudding is in the install. NG Windows installed 22 windows and a door in our house in one day! As you would expect there were a few issues. All of these issues were handled quickly, efficiently and with a great attitude. All of the people we interacted with during the sale installation and post installation have been outstanding. Every day my wife and I look at each other and say, 'Boy are those windows nice'. I cannot recommend this company more highly. They have just been great for the entire process.

john jamieson

Wanted to give a shout out to the amazing team at NG Windows - they added a HUGE picture window to our sunroom and we couldn't be more thrilled. Would highly recommend NG Windows! NOTE: Photos show the before - and after - and some of the crew at work! It was a HUGE job - very well done!

Tracey French

The sales and customer service people were professional, efficient, and friendly. We had 24 windows replaced and The installers were professional as well and were cognizant of surrounding structures and furniture. They were efficient with little to no wasted time. They cleaned all the...
The sales and customer service people were professional, efficient, and friendly. We had 24 windows replaced and The installers were professional as well and were cognizant of surrounding structures and furniture. They were efficient with little to no wasted time. They cleaned all the windows after installation and removed all waste materials. They even came back several days later to re-clean one window that had some smudges that couldn’t be seen unless the sun hit it just right. I highly recommend NG Windows and the Infinity by Marvin windows are fantastic. We are thoroughly pleased. In addition NG Windows has a relationship with Costco and that is how we bought the windows.

Rickard Hawkins

Charles installed a new front door today. The door looks beautiful and he did an amazing job! He's a true professional. Alex, the customer experience manager was on-site throughout the process. Very impressed with him as well! Thank you for a great job!

Bonnie Ferree

Replaced an old patio French door with a Marvin 4-panel sliding door set. The look and quality are great. And installation by NG Windows was excellent. Excellent communication throughout and the attention to details during installation was impressive. Shout out to Skylar Reyes (sales) and Alex...
Replaced an old patio French door with a Marvin 4-panel sliding door set. The look and quality are great. And installation by NG Windows was excellent. Excellent communication throughout and the attention to details during installation was impressive. Shout out to Skylar Reyes (sales) and Alex Coley (installation) who made the entire process easy and pleasant. I highly recommend NG Windows. I’ll be using them again for the next project!

Paul Abitante

Great experience with NG Windows from the original sales contact all the way through to installation! Highly recommend for a high quality product and warranty!

Tracy Markoff

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The NG Windows Experience

Window & Door Shopping Made Simple

Three easy steps and you're on your way to enjoying beautiful Infinity by Marvin fiberglass windows and improving your home's energy efficiency, comfort, and curb appeal. Although this may be your first time replacing your windows, we want it to be your last!

Ready to see the options for your budget?
Call 770-888-1604 or contact us!