Looking to replace your doors or windows but not sure where to start? Check out our totally unique take on door and window installation - it'll have you seeing the world differently in no time!

Infinity Windows
Infinity from Marvin fiberglass windows offers timeless style, strong performance, and durability built to last.

Replacement Doors
Make a great first impression in your home with custom interior and exterior doors. We offer sliding patio doors, french doors, bifold doors, and more for your home.

James Hardie Siding
James Hardie fiber cement siding is the perfect choice for people who want a long-lasting, low-maintenance exterior. This material will protect your home from mother nature and maintain its value over time so you can enjoy living in your home with no worries!
Replacement Windows Denver
Trust the Highest-Rated Local Window Company in Denver
Our company guarantees the highest quality work by ensuring that all of our window installers are adequately trained and properly equipped. We're committed to doing things right from start to finish – no shortcuts! That's why you can trust us when it comes time to install your new windows and doors. This gives you excellent quality assurance and ensures that your home will be kept safe for years to come - providing unbeatable peace of mind.
Gravina's Window Center of Littleton
At Gravina's Window Center of Littleton, we believe every customer deserves to be treated like family. With four generations worth of commitment and expertise in the window and door industry behind us, you can trust that your home improvement dreams will come true! We look forward to having a long-term relationship with you that honors our core values while creating an extraordinary experience for all.
- Expands 87% less than vinyl – resists expanding and contracting in any climate
- 8 times stronger than vinyl – protects the integrity of your home
- Resistant to leaks, seal failures and stress cracks – all things that can affect energy efficiency
- Ultrex’s fiberglass windows and doors strength delivers narrow profiles for expanded views and more daylight
- Our proprietary acrylic finish is fade-resistant and virtually maintenance-free
- We offer a complete collection of styles, features, and sizes to complement any home
Why Gravina's Window Center of Littleton?
Colorado's Oldest Infinity from Marvin Retailer
Partnering with Marvin Windows and Doors, we knew Infinity from Marvin had a special product over 20 years ago.
Giving Back Since 1973
As a Family-run business we have given back to our community, and will continue to do so.
Lifetime Warranty
Being in business as long as we have, we know customers need peace of mind when it comes to their home.
WINDOW REPLACEMENT NEAR ME
Your stress-free experience includes a quick, accurate proposal without pressure or pricing games
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Testimonials
Tamra UlrichThis was the best upgrade for our house. We replaced a few windows with a big sliding door. They installed the header, door, and did drywall around the edge including putting our doggy door back in. The only thing that wasn't perfect was the trim color. They had some of our old trim to match to and it was much brighter color, so we had to repaint the trim on the rest of the house to match. We are very happy with all of the windows that they installed as well.
William OswaldThis family-owned, Denver-based company did a fantastic job! First, Jeff and team came over to quote us and were very professional and knowledgeable. We'd receive two quotes already with descriptions of work to be performed, and after hearing their installation process they were obviously the better choice.
Christine WebbJeff and the team at Gravina’s were amazing to work with! Their finished product is beautiful, I couldn’t be happier with my new windows and doors. They were responsive starting from the very beginning of the process, had fair pricing, and were constantly checking in to make sure I was happy during the installation. I would highly recommend!
Jonathan MannGravina's wasn't the cheapest option, but I feel like received what I paid for and am very pleased with my new windows. Staff were very professional, they handled working through COVID19 well, and consistently seemed focused on my job. I highly recommend you speak to them if you're considering new windows for your home.