950 W Evans Ave
Denver, CO 80223
(303) 472-8462

Local Reviews

Rated 4.9 out of 5 stars based on 28 customer reviews

Great value and service

We had 4 quotes before deciding to go with Gravina's. We are glad we did. They were not the cheapest but they had the best value. The install was professional. The siding install was absolutely amazing.

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Installation of Windows

*COST/PRICING: The windows are high quality. However, $20K is not low-cost due to inflection. However, Gravina’s pricing was fair market price compare to Pella’s Windows and Champion’s Windows. *SERVICE: I greatly appreciate Mr. Jason Castro for his sales experience and most importantly for being patience to answering all my questions. As for Mr. Alberto and Mr. Jeremy, watching both of these gentlemen performing physical hard labor and working without breaking until lunch. The installation was fished in a timely manner within two (2) working days. The craftsmen was professional and knowledgeable. The finish product was outstanding and thank you! NOTE: Only one (1) window screen has a hole with a small torn. Last Friday, 28 October 2016, Mr. Alberto was notified to replace the window screen. *I will return back to Gravina’s for installation of siding on my house.

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Amazing service

Extremly pleased with the process of getting my windows replaced

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Good Service

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Delivered as promised!

Gravinas delivered as promised and the installation was completed as promised. Good cleanup after project and great service from a very nice installer (James). I highly recommend them to anybody looking for new Windows.

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Great service

Your technician was polite, efficient and fixed my problem to my satisfaction.

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Very pleased with the siding project!

Well worth the investment.

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3rd rendition

This 3rd installation by Gravinas. Once again, everything went smoothly. Installer showed up on time and worked diligently. He was friendly and informative.


Response from Gravina's Windows & Siding:

Thank you so much for your kind words. We sincerely appreciate your business.

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Awesome Job All Around

Don Meyers did an exceptional job installing the window. There was nothing left to do inside the house and he even rehung the window dressing. The caulking inside was exceptional. Smoothed out perfectly with no painting required. On the outside the touch up work was minimal but necessary. He left caulking in place to prevent water from getting into the siding until I could touch things up and repaint. He cares about our home and was not just throwing a window in. Gravinas was the only company willing to replace a single window and worked with me and my military schedule to get the correct measurements and scheduled installation during my at home windows. I could not be more satisfied with Gravinas or Don. Matt


Response from Gravina's Windows & Siding:

Matt--thanks for your wonderful and kind words, it's awesome having a customer like you.

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Job Locations

Michael G.

Michael G. Job Checkin

Estimated new milgard replacement windows due to hail damage


William R.

William R. Job Checkin

Plygem windows complete by Gravinas


Michael G.

Michael G. Job Checkin

Completed paperwork on Plygem replacement windows


Michael G.

Michael G. Job Checkin

Completed paperwork on Great Lakes replacement windows and sliding patio door with SmartGuard glass


Michael S.

Michael S. Job Checkin

Showing Great Lakes windows


Michael S.

Michael S. Job Checkin

Showing Great Lakes, Anderson ,Kolbe windows


Michael S.

Michael S. Job Checkin

Showing Great Lakes, Milgard windows


Michael S.

Michael S. Job Checkin

Showing Milgard, Great Lakes, Anderson windows


Michael G.

Michael G. Job Checkin

Estimated new Great Lakes replacement sliding patio door


William R.

William R. Job Checkin

Great lakes windows complete by Gravinas


Jason C.

Jason C. Job Checkin

Gave estimate for James Hardie fiber cement siding


Jason C.

Jason C. Job Checkin

Gave estimate for James Hardie fiber cement siding


Jason C.

Jason C. Job Checkin

Completed paperwork for Great Lakes windows order


Jason C.

Jason C. Job Checkin

Gave estimate for Ply Gem vinyl replacement windows


Jason C.

Jason C. Job Checkin

Completed paperwork for Kaycan smooth aluminum siding order