Your home,
made brighter

with wow-worthy windows.

See the world outside in all its majesty while improving energy efficiency. We’ll show you how, faster and more affordably than you might think.

Your home,
made more inviting

with delightful doors.

The portal to your kingdom deserves an attractive, high-quality door from Gravina’s—one that you actually look forward to using every day.

Your home,
made happier

with superb siding

Nothing beautifies a home quite like new vinyl, steel, or composite siding. Fortify your home with the best from the nation’s top manufacturers.

Every project is
personal to us.

Gravina’s® was founded on a single principle: treat every home as if it were our own. This approach to serving our customers has served us well since our founding in 1988, and it’s why we’ve become the #1 most referred window, door, and siding company throughout Denver.

Embarking on a home improvement project doesn’t have to be stressful and complex. In fact, it can even be fun and exciting! The Gravina’s team has overseen more than 100,000 successful projects, and we’re ready to get started on yours today.

“From start to completion of project, I’ve had great experiences working with Gravina’s. I’ve had them twice out to my house and have recommended them many times to friends, families and coworkers. I couldn’t be happier with their work!”

Ryan
Denver CO

“WOW is all I can say! The prices were fantastic and the people were among the finest and most professional I have ever dealt with.”

James & Irma
Littleton CO

“Gravina’s was honest and professional and saved me a ton of money that other companies probably would’ve been happy to take!”

Christy Naplin

“My wife and I are exceptionally happy with the entire process from saleman to the installers”

Fred & Wilma
Littleton CO

“I love my new windows and doors! The installers were professional and friendly, and the quality is great.”

Jessica Palmer

“Gravina’s did a stellar job. They have superb customer service and they took extra time to make everything perfect.”

O.C. O’Connell

Your All-Star Lineup of National Brands

Great Lake
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jamesHardle
Aliside
JW
Pella
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logo-mi
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Gravina’s
at-a-glance

35 years in business

50+ lines of windows

100,000+ happy customers

22 Metro Denver cities served

Your Journey to Home Happiness

IT ALL STARTS WITH A FREE

In-Home Consultation

A friendly, knowledgeable Gravina’s team member will visit you to gather key information and answer your questions prior to giving you a free, no-obligation quote.

THEN, IT WILL BE TIME FOR

Project Scheduling

At a date and time that works for your schedule, we will begin installing your new high-efficiency windows, doors, siding, or gutters and downspouts.

THE EXCITEMENT PEAKS WITH

Work Completion & Clean Up

This is the big moment: standing back and admiring the refreshed, revitalized look of your home while the neighbors look on in envy. It was all so worth it.

WE REMAIN BY YOUR SIDE THROUGH

Ongoing Service & Support

Other companies consider the job done when the last truck leaves. Not Gravina’s. We’re here for the long haul, always a click or call away.

Chances are good we’ve worked with your neighbors.

If you’re in the metro Denver area, then we consider you a neighbor. Don’t be surprised if we invite you over for a barbeque sometime.

Snappy Answers to Common Questions

Yes. Gravina’s has friendly representatives who meet in-home or at the showroom. Please request in-home appointments 24-48 hours in advance. Showroom appointments aren’t necessary but are helpful. Representatives demonstrate samples and offer multiple quotes to compare.

We carry a wide variety of windows so we can fit everyone’s needs and budget. We are like a broker for windows—most other companies only carry one brand. We carry over 50 lines of premium windows, which translates into more selection for you.

Clients are welcome to pay via cash, check, financing, or with any major credit card.

Yes, it is almost always better for windows to be installed prior to any exterior façade replacement.

We have been around since 1988, which is longer than 90% of the competition!

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Great service! 👍 A+ work. Fast and reliable
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JK
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Gravina's provided Great service! Andy gave me a good price on a quality window that fit my description precisely. Jeremy did perfect measurements and a perfect installation. Nick followed up to make sure we were 100% satisfied. Highly Recommended! 🙂
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Adam D Acevedo
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I would highly recommend Brian from Gravina's Service Department. He is very personable and has a great attitude. His expansive knowledge from decades in the business is very impressive and enabled him to promptly replace worn parts and adjust the windows. Thank you Brian.
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David Perron
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Working with Gravina’s was a simple and quick process. I received a quote from them quickly and once it was agreed upon, they sent someone out to perform final measurements. After that I received confirmation that the materials were ordered and installation would occur 6-8 weeks after. They delivered on that promise plus some, as the window was installed ahead of schedule. My window was unique in that it’s massive (9’x8’), so I was worried it would be expensive but Gravina’s gave me an honest quote and completed the job satisfactorily.
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Alec
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I had Gravinas replace all my windows 2 yrs and and my sliding doors this past week and both times they provided exceptional service. They were on time, cooperative, quick, and friendly.
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Gerald Ogg
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I’m so happy with a repair that Gravinas did on my sliding glass door. They always communicated with me and showed up when they were scheduled.
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Scott Pearson
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Once again Gravina's came through with what we needed, were flexible and worked quickly to get our windows and install them way ahead of their original timeline.
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Kelly Michels
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Gravina’s provided outstanding service. This is our fourth home and third window replacement project - we have lots of experience to compare to. The sales and measurement teams offered solid advice and problem solving. The pricing was transparent. The timeline was faster than promised. And the installers were truly exceptional. They clearly took pride in their work, and somehow they left work areas spotless at the end of each day, as if we weren’t even living through a whole home project. The owner stopped by at two different steps in the process, definitely a local and high quality approach. Highly recommend.
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jamie richards
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Sales: Low pressure quotes. Very conscious of budget constraints and gave multiple options in the same budget. I was able to go to the showroom to verify our selection before we signed. Will be using them again. Installation: The installer showed up in a real work truck, not a pavement princess. The truck has seen it's fair share of work. Jeremy our installer went above and beyond with my 1900s wood framed house, doing some minor fixes areas around the window openings that needed love before installing the windows. Our expectations were honestly lower than the quality of service we got. Oh... And they actually communicate every step of the way. They tell you when they're going to arrive, and then they actually arrive at that time. If they are delayed, they call and tell you that they are delayed. I didn't have to wait around for a 4 hour appointment window like some other contractors.
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Hayley
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Great start to finish! Literally! Kind people to work with, responsive and kept us informed on all steps of the process. The attention to detail was wonderful and appreciated. As a busy mom, I loved that I don’t have to do any further touch ups or clean up. It’s just a beautiful door that wasn’t there before! Thanks for what you do and how you do it, Gravina’s!
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Jill Hall

It’s time. You’re ready. We’re ready.

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