Business Details
38 Years
experience
Your Trusted Partner for Windows, Doors & Siding in Denver
Gravina's Windows & Siding is a family-owned-and-operated Colorado company that has been serving homeowners for over 35 years. Our foundation was laid in 1988 by Larry Gravina, who spent 16 years learning the home improvement industry before establishing our company. Today, Larry's son Nick Gravina manages day-to-day operations, bringing 25 years of industry expertise to our team. We pride ourselves on delivering work ethic, honesty, and integrity in every project, whether large or small. Our Colorado heritage drives our focus on helping homeowners in the Metro Denver and Fort Collins areas. Unlike big-box stores or national chains, we are passionate windows, doors, and siding experts committed to treating every home as if it were our own.Our process includes free consultations, precise measurements, professional installations, and ongoing support. With over 100,000 successful projects completed, we have become the #1 most referred window, door, and siding company in Denver. Our team of 50+ experienced professionals carries 50+ lines of premium windows, ensuring we meet diverse customer needs and budgets. We stand by our promise to treat customers the way we would want to be treated, combining decades of industry knowledge with personalized service to transform homes across Colorado.
Services
Windows
Doors
Siding
Gutters
Downspouts
Details
- Year established: 1988
Highlights and features
- We have 35+ years of experience serving Colorado homeowners
- Family-owned business with generational industry expertise
- Offer free, no-obligation in-home consultations
- Carry 50+ premium window brands for diverse needs
- Provide ongoing support beyond project completion
What people say
Professional and friendly installers
Stellar customer service
Competitive pricing
Perfect installations
Outstanding solutions
Services
Replacement Windows
We install beautiful, low-maintenance, energy-efficient windows in various sizes, styles, and materials. Our 50+ premium brands ensure perfect matches for your home's aesthetic while improving energy efficiency. Professional installation by experienced technicians guarantees optimal performance and durability.
Replacement Doors
Premium doors that combine security, functionality, and aesthetic appeal. We offer extensive options that perfectly complement your home's existing look while providing enhanced energy efficiency. Our installation process ensures perfect fit and long-lasting performance.
Replacement Siding
Protect and enhance your home with high-quality vinyl, steel, or composite siding. Our selection from top manufacturers improves curb appeal while providing superior protection. Expert installation ensures proper fit and lasting durability for your home's exterior.
People
Larry Gravina
Founder
With 50+ years in the industry, Larry started in 1972 working with his father before founding Gravina's in 1988. He built the company on principles of integrity and exceptional service.
Nick Gravina
Operations Manager
25-year industry veteran who joined in 1997. Now manages day-to-day operations while maintaining hands-on customer service approach. Continues family tradition of excellence in home improvement.
Questions
Do you provide free estimates?
Yes, we offer free in-home or showroom consultations with no obligation.
Why carry so many window brands?
We offer 50+ premium brands to ensure we meet every customer's needs and budget.
What payment methods do you accept?
We accept cash, check, financing options, and all major credit cards.
Should windows be installed before siding?
Yes, we recommend installing windows before exterior siding replacement for optimal results.
How long have you been in business?
We've served Colorado homeowners since 1988, with over 35 years of experience.
Videos
Reviews (7)
Chris Petersen
May 15, 2022
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I have used Gravina's now twice for my sliding patio door and just recently 5/19/2022 to replace all of my windows. I priced out 3 companies. Gravina's beat the pricing by $400. I had some very old windows so we had air coming through the cracks, you could hear the traffic as if it were in you were standing outside. Now my home is quiet, cold in the summer and warm in the winter. The windows are super easy to take down and clean without having to even go outside and throw ladders onto the home.
You can take the windows down and clean them. Not only, was their prices better then others, they are Courteous, fast and professional. Gravina's is a great place for your windows. I like them so much they are replacing my front door and security door next week. A+ experience all the way.
You can take the windows down and clean them. Not only, was their prices better then others, they are Courteous, fast and professional. Gravina's is a great place for your windows. I like them so much they are replacing my front door and security door next week. A+ experience all the way.
Jessica Palmer
Apr 15, 2022
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I love my new windows and doors! The installers were professional and friendly. The quality is great. They were able to recommend windows to meet my needs. The project was completed, on-time and according to the schedule that was communicated. I will be happy to use Gravina's again in the future. Services: General door installation, Window installation
Catherine Garvin
Apr 03, 2022
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I am so happy with my new sliding glass door. From initial contact to install Gravina's did an excellent job. I would use them again and refer them without hesitation. Thanks Nick! Service: Window installation
Christy Naplin
Mar 09, 2022
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Honest and professional and saved me a ton of money that other companies probably would've been happy to take! I was concerned that my windows may have needed to be replaced, but Nick came by and recommended replacing only one glass pane that had a bad seal. He ordered the glass and installed it in about 20 minutes, and it looks amazing! What could've cost me thousands ended up being a cheap, easy fix. They weren't interested in selling me windows that I didn't need, but I will absolutely be calling Gravina's when I do!
Brian Bugge
Feb 24, 2022
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Amazing quality. the entire experience was great they presented us with many options, stayed in touch about timelines, and delivered an amazing finished product. our new siding looks great and all our neighbors comment on it.
Michael Gooseff
Feb 13, 2022
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I have used Gravina's to replace windows in two homes in Colorado and I LOVE their windows. This time around we went with triple panes and they have been fantastic this winter. Everyone we worked with from planning to installing were very professional, prompt and clear communicators. I recommend them to anyone without hesitation! Services: General door installation, Window installation, Custom windows
Terri Dahl
Nov 28, 2021
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We are very pleased with Gravinas! Our new windows (9), doors (3), and storm doors (2) are beautiful! When ordering, they answered all our questions. The products we received were quality materials. The installation was meticulously completed with care. Above and beyond! Highly recommended. Services: Window installation, Door installation
