About

Since 1988, Gravina's Windows and Siding has been family owned and operated, and one of the most referred and trusted window companies in Denver. They know replacement windows and siding can be a confusing ordeal, so it is their mission to simplify your life. They offer a range of top window and siding manufacturing lines, from high end to builder’s grade, to meet any style, project, and budget.

They offer a varied amount of exterior colors to choose from for your new siding, soffits, fascia, and gutters. Every stick of wood on your home is covered . . . never paint your old siding or overhangs again! At Gravina's Windows and Siding, they are proud to put their name on the job. They have unsurpassed workmanship by all their window and siding installers. Let their family serve your family, and remember Nobody beats Gravina’s…NOBODY.

Services Offered:


  • Low E Windows
  • Double or Triple Pane with Designer Leaded Glass Options
  • Custom Vinyl, Wood, and Fiberglass Windows
  • Bay, Picture, Garden, and Slider Windows
  • Patio and Entry Doors
  • Exterior Steel, Vinyl, Hardie Board, and Louisiana Pacific Siding

Google Reviews

Gravina's Windows Rating: 4.5

Jessica Palmer

Apr 14, 2022
I love my new windows and doors! The installers were professional and friendly. The quality is great. They were able to recommend windows to […]

Christy Naplin

Mar 16, 2022
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 […]

Catherine Garvin

Apr 28, 2022
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 […]

O.C. O'Connell

Apr 07, 2022
Gravina’s Windows & Siding (@ 950 W Evans!) did a stellar job for us from consultation through installation! They have superb customer service & […]

Brent C

May 13, 2022
Nice work and great communication at a very good price! Definitely recommend. […]

50 Recommendations

Please provide us with the following before posting your endorsement

I used Gravina for my standard windows about 10 years ago so I went to them when I was ready for a new patio door. I purchased a "Cadillac" of a sliding patio door, pricey, but well worth the cost. It included the blinds between the glass. When I had a problem with the mechanism that works the blinds, the "Nick & Nick" team came to my home and took care of the problem. Gravina stands behind their work; the staff was very professional & courteous from sales team to installers. Thank you Gravina!

Candace W.
  • In both cases, Larry was available for questions and was most pleasant to work with. Gravinas knows windows & we experienced a competent, professional team to do the work.

    Ellen S.
  • We've used Gravina's twice, and had a very positive experience both times. Initially, they replaced 19 windows in an older home we bought. They installed as scheduled, were neat and cleaned-up after the job. We recently used them again when adding two additional windows to an existing wall. This was an involved project requiring cutting through brick on the exterior and then re-bricking around the windows after installation. Mike & Gary, the window installers, cut thru the interior and patched drywall. Alberto and Carlos did the exterior brick, working non-stop for two days in the hot weather. They are truly artists! The new brick around the windows looks identical to the 30 year old brick on the rest of the house. Re customer service, again a positive experience. Several months after the initial installation, one defective window required replacement. The new window was ordered, arrived promptly and installed without any problem.

    Satisfied Homeowner
  • I shopped for windows but was pleased when a man in the construction industry recommended Gravina's. I liked the salesman and the price seemed reasonable. The day of the install was a breeze and I thought everything went well. It was relatively quick and they cleaned up everything as they worked. I believe I got a good quality product that has been professionally installed. Larry also followed up with me on a tiny repair that needed to be done on a lock that came broken. He was polite on the phone and assured me that the problem would be taken care of. Purchasing window replacements is a major investment to a homeowner, and I am happy with my choice.

    Jane S.
  • I have been a general contractor for over 25 years so I know working with the construction industry can be quite a unique experience. I met with over 6 window companies and became extremely frustrated! The pricing and professional opinions were from one extreme to the other. I was about to throw in the towel and just roll the dice until I called Gravinia's. I was very impressed talking with Larry the owner about his knowledge and honesty. The sales person Michael was very knowledgeable and never pushy. The installers were always on time very clean and took great pride in their work. After the job was completed the owner’s son Nick and the sales guy Michael both came by to inspect the work and make sure it was done correctly and that I was completely satisfied. A GREAT window at a GREAT value! I would HIGHLY recommend this company!

    Joe R.
  • My husband and I manage family owned rentals all over the Front Range. Although she is trying to retire, my mother in law is yet a smart cookie to send me to Gravina’s Windows and Siding for more of our window needs. She has had Gravina’s install windows to one of her duplexes years ago, and we are still delighted with them! The service has not changed at Gravina’s over the years we have known them. They maintain the highest quality service and stand by their windows. This time we had a two and a half story stretch to get to one of the windows. The window went in with professional flair, and they had fully insulated and closed it up tight. They installed quickly, carefully, and politely (I have a grumpy tenant) in one duplex this season. We will keep them as our window people, and will be seeing them again soon. Thanks to the Gravina team, we see the light!

    Doug H.
  • I have ordered windows from Gravina's for my own home as well as two rental properties that I own. Obviously, with this many orders I have been completely happy and satisfied with both the product and their workmanship. The windows are absolutely great and have made a huge difference. The installation was excellent and very professional. Everyone involved with my orders, from the owner - to the shop manager - to the scheduler - to the installation crew was absolutely great to deal with. All my work was done on time and as specified. I have not hesitated to recommend Gravina's to my neighbors, friends and relatives because of their expertise, and my pleasurable experience with them.

    Sharon M.
  • First, only go to the Gravina's on West Evans Ave., Denver. Gravina's has been great to work with on the replacement of my windows. Nine windows for a condo, they had to match the original outside color. The staff was very helpful in the selection process. The installation crews showed up on time and were professional from the start to the finish. The trim work was perfect and we are pleased with the outcome. They cleaned up everything. I would highly recommend this company to my family and friends. We love how the new windows look. Their prices are hard to beat.

    Dan S.
  • We have had windows installed by Gravina's in the past and were very pleased with the quality and installation. Since we had used Gravina's before, we did not hesitate to call them again when we had moved to a new home. They were again very impressive from the initial bid to final installation. Their install crew was awesome and was very courteous and professional.
    In our previous home after six months, we noted that there was a crack in one of the panes of our bow window. We called them and they ordered the pane immediately and within three weeks, they installed the new pane. You can get good deals with most every company, but as far as we are concerned, we have been treated well by Gravina's and will use them again when the time comes. It isn't always about who is the cheapest. We want good customer service and a quality product and certainly get that with Gravina's.

    Ron H.
  • Recently I had some of my windows replaced by this company, and I cannot say enough good things about them. The windows made a huge difference in the warmth of my room, they operate easily, and are very easy to clean (some are on the 2nd floor). They really are top quality.
    Everyone that I dealt with at Gravina's (from beginning to end) was so pleasant. The salesman was very knowledgeable about his product, the guy that measured was really nice and informative, the installers were real craftsmen - did a superb job, and their office personnel were always very courteous and helpful, Plus, the job was done earlier than promised. All in all, my experience with this company was very impressive and I would not hesitate to recommend them.

    Tod M.
  • Larry and his team were great to work with. They presented us with many different window options for us to choose from including some name brands like Pella. When the crew came out to install they were very courteous and completed the job on time. We really appreciated the fact that they cleaned up afterwards - it was like they had never been there except of course for our new windows!

    Roger M.
  • Our news door neighbor used Gravina's to replace windows, and liked them. My in-laws used Gravina's to upgrade their windows, and liked them. I wanted some windows and door that could be operated easily, with one hand....not sliders. They had several options. The install went as scheduled, very professional people who were nice and easy to work with. We were in contact by email or phone, before and after the install. I don't know who wrote the other reviews, because it certainly was not our experience.

    A.D.
  • Gravina's did a very professional installation of our 3 new windows. Their cleanup was very good too and much appreciated. We are very happy with our new windows! Their customer service before and after the installation was very good too. Larry was awesome!

    June S.
  • This company and crew get a 5 start rating from us! They have done most of our windows and I can't wait for them to do the rest. When we get money ahead I will have the basement windows done, and then the siding. LOVE what they have done. Thanks Gravina's!!!!!

    Hope P.
  • Larry personally came to my house to help me find the best windows for my budget and house. Paul and later the installment crew were very helpful and polite when they came to my house to measure and install the windows. They were very neat and clean and replaced everything back to the way it was when finished. I am very pleased with my new Bay Shore windows, triple glazed and UV coating. I shall enjoy them for a long time.

    Jaime L.
  • Michael came to my house about 6 weeks ago - I had my mind set on French Doors for my Patio Door. Mike gave me some options and told me he would sell me French Doors but my patio was not set up for them and showed me an All American Slider which I purchased. Honestly, after it was installed I couldn't believe how beautiful it was and the difference in made in my living and patio area. Gravina's was awesome in every phase of the purchase. Mike down to the installers. I would highly recommend them for your upcoming needs.

    Sandi P.
  • Love the windows and doors. They improve the overall look of the house. The install crew was wonderful as well. I would do it again.

    Lonn W.
  • This is the second time I've used Gravina's for windows in my house- they've now replaced all of my windows and added 2 more. All of the staff was very professional and helpful. The install crew was great and efficient. I love my windows!

    Anne B.
  • Working with Nick and the team at Gravina's was a great experience from start to finish. We were desperate for a large, custom sized sliding glass door since ours stopped working. Gravina's made 2 trips to our house to make sure all the measuring was right, and spent tons of time with me in the showroom selecting the door. The door came more than 2 weeks ahead of schedule. They called at 7 pm on a Sat night to let us know it was in, and came to install it first thing the following Monday morning. The install was perfect - including making my expensive custom shades work with the new door profile. The door looks and works perfectly. I could not be happier and will always go to Gravina's for future business.

    Annette E.
  • We consistently receive great products and service from Gravina’s! We replaced several windows in our house this year, and the new windows have improved the energy efficiency of our home tremendously. We are having our gutters replaced by Gravina’s in a few weeks as well. We are always very pleased with their work!

    Cindy R.
  • I had a great experience. I called to get windows for a 3 story townhouse. They were very responsive and timely. The salesman Andy was a super nice guy. He was running late for our initial appointment and he called to let me know. He didn't try to upsell me which I appreciate. The gentleman that came out to measure was great. He was very accommodating and the installers were awesome. Overall, I think they did a great job. They were on time and very professional.

    Linda G.
  • Pleased with the product and service received with our residence windows installed
    in May 2014. Would do further business with the company as needed.

    Marv R.
  • We had Gravina’s replace 15 windows for us several years ago. We were very pleased with the product provided and the workmanship so we came back for an additional 9 more windows. The sales person that we dealt with this time was William who was very good at what he does. He really didn't have to sell me on anything because i knew what i wanted it was the 'Sea Brook'. The turnaround time was about six weeks the windows came in on time one window was measured wrong. So we will have to wait another six weeks i don't care because I know the job is going to be done right. We got to choose the days we wanted them installed. The installers were neat, quiet and very good at installing windows (weren't the easiest to install because my house is 120 years old). They cleaned up after themselves. I came back to Gravina’s the second time because of how i was treated the first time. It was one of the Gravina’s who showed me around the warehouse and told me that he'll sell me anything i want because that's what he does sells windows. But first, he was going to show me why one was better that another. That's why I choose 'Sea Brook'. There was a time after i had had the first set of window put in that i wasn't sure but, I think i broke a window. A sells person came right out and assured me what everything was fine I hadn't broke it. It was just off track. Hope this review helps you make your decision.

    T. Oliver
  • I had a roof replaced and windows from the huge hail storm from last year. Gravina's has integrity and stood behind their work. They completed the work on time and did a great job with the installation. I've only the 1 experience to write from but they would be someone I recommend. –

    Bruce P.
  • Gravina's Windows & Siding replaced all the windows in our home. (20 total) We were amazed with how quickly and easily they completed the job and we love our windows. They've made a huge difference in how quiet and comfortable our home is. The tilt in feature is super convenient for cleaning. We've also had the siding on our gables replaced and new gutters installed. From the first visit for measurements to the final installation they were real pros. Nothing but praise. 10 Stars!

    Jeffery
  • I worked with the owner, Larry Gravina and I have to say that they did a great job! I have an older home in Denver and needed all of the windows replaced. They were on time, clean and priced the job right. The windows are high quality and I would recommend Gravina's to anyone needing replacement windows.

    Megan Bedford
  • These guys were great! Did what they said they woud do - on time and courteous for a great price.

    Michelle Ludt
  • We bought our windows from Gravina’s because they had been referred to us by family and friends who raved about them. We are delighted with our new windows! Their prices were more than competitive and their selection was unbeatable. Who wants to drive around looking everywhere when you can make one-stop and accomplish the same thing! The house is now tightly sealed and amazingly comfortable! I would wholeheartedly recommend Gravina’s Windows & Siding to anyone in the market.

    Satisfied Customer
  • Gravina’s put windows and siding on our neighbors’ house. My wife and I were so impressed with the quality, care and workmanship that we called Gravina’s for a price on our own home. 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. Our house is so much warmer, quieter, and energy efficient that I wish we had done this years ago. We just love our new windows and would highly recommend Gravina’s Windows & Siding to anyone looking for great value and comfort in windows and siding.

    Satisfied Homeowner
  • My 60 year cinder block has was so drafty in the winter months that I would have to crank the heat way up for guest and even then noticed they were still cold! In the summer months it was miserable as well as I couldn’t open most of my windows because they were painted shut! Gravina’s installed all new windows, new storm doors and put up beautiful vinyl siding with double-insulation. The siding installer’s craftsmanship not only impressed me but my neighbors as well! One of my neighbors came by after everything was finished and said she watched them every day and they were “meticulous”. I love the new colors, the new “look”, and I especially love my new energy bill…it dropped 56%! I definitely would recommend Gravina’s for anyone that wants a high quality job at a great price.

    Congonzo
  • My wife and I were so turned off by the high-pressure, used car tactics if some of Denver’s more visible window companies. But Gravina’s Windows and Siding came in and impressed us with their courtesy, professionalism, and vast selection of windows that would accommodate virtually any conceivable need or price range. Their installation crews were courteous, neat, and thorough! This outfit is very sharp- very smart and provided unprecedented customer care and service to my wife and myself. The few normal installation glitches that arose were promptly and thoroughly taken care of. I would not hesitate to recommend Gravina’s to anyone looking for quality and value in and windows and who DON’T appreciate high-pressure, low quality salesmen in their face.

    ConstructionRocks38
  • Gravina's did an ""Outstand job through the whole process from sale to installation."" I would highly recommend Gravina's over the traditional ""big box stores.

    Jefferson Knight
  • Excellent products and service. Gary Gravina had superior product knowledge and was able to help us determine exactly the right windows to suit our home. The installers were also excellent and enjoyable to work with. The twenty-two windows were installed without breakage or incident, and the windows all fit perfectly. I couldn't believe how close the measurements were. The installation team showed great care in keeping our pets in the house and safe during installation, something that was important to us. I definitely recommend Gravina's and would use them again - in fact, we are getting ready for our second phase installation of nineteen more windows with Gravina's.

    Lisa Fix
  • The salesmen and installers were courteous, on time, very professional. I have used Gravina's for another window project and now for doors. Top Notch!

    Safish
  • Gravina's did what they said they would do at the price they said they would do it. Everyone I dealt with was very accommodating, my windows are beautiful and I would definitely recommend Gravina's!

    Julie Hartman
  • The team that installed the windows was prompt, advised us of their progress and seemed to know what they were doing. They did a great job.

    R, Laque
  • The people that did the installation were very good, very polite and very accommodating. I was a little disappointed that the windows weren't cleaned before they left. They were ok but I would have thought they would have been cleaned as they were installed.

    Redham
  • I was very impressed with Gravinas from beginning to end. The window installation team was fabulous. They were extremely professional, respectful and clean.

    Sahayleeh
  • I enjoyed your crew they did a very good job and kept the house clean as they worked. Only one thing I would like a copy of my lead inspection report.

    J. Hecocks
  • I chose Gravina's based on the newspaper ad that assured the length of time in business. I did not make an appointment but was courteously greeted, window types were explained, and when I made my selection, I was pleased that I was able to negotiate a price within my budget. Gravina's picked up half of the cost of the lead inspection. Everything that was performed as promised. It's a great place to feel confident about getting good service and fair pricing.

    Nik
  • Your installation crew is terrific!! I would have appreciated more directness about installation dates initially, because I was trying to plan around the installation, but once the dates were set everything went smoothly. I did feel that the salesman didn't always get back to me in a timely fashion, but the installation crew sure did. I am not too happy about follow-up, as I called because I have one window where gaps are developing and I wanted Gravinas to look at intially, and I have not yet been called back after a least a couple of months and am going to have to call again.

    E
  • My 60 year cinder block house was so drafty in the winter months that I would have to crank the heat way up for guests and even then noticed they were still cold. In the summer months it was miserable as well as I couldn’t open most of my windows because they were painted shut. Gravina’s installed all new windows, new storm doors, and put up beautiful vinyl siding with double insulation. The siding installer’s craftsmanship not only impressed me but my neighbors as well. One of my neighbors came by after everything was finished and said she watched them every day and they were “meticulous”. I love the new colors, the new “look” and I especially love my new energy bill . . . . it dropped 56%! I definitely would recommend Gravina’s to anyone that wants a high quality job at a great price.

    Laurie, Arvada
  • I put beautiful vinyl siding on my 112 year old home and it simply looks marvelous. They were careful in the way they sold and installed my siding so as not to compromised the appearance and rustic beauty of this old Denver home. The installation crew was prompt, courteous, and very professional as was Rob Gravina, the gentleman who sold me my siding. My neighbors all think I spent a fortune. (I didn’t) I would recommend Gravina’s to anyone wanting great prices and selection, courteous and professional sales and installation folks, and a home anyone would be proud to own.

    Wilbur, Denver
  • Anybody can buy materials and dump them on your front lawn. But Gravina’s is superior in all aspects of the process. From sales to installation to customer service…Gravina’s vastly exceeded my expectations and delivered as promised on the first go-round. Everything was right the first time and my wife and I now enjoy our “new” home, quieter, more energy efficient, and extremely comfortable. We are very satisfied and I would recommend Gravina’s to anyone.

    Glen and Elizabeth, Lakewood
  • Gravina’s put windows and siding on our neighbor’s house. My wife and I were so impressed with the quality, care, and workmanship that we called Gravina’s for a price on our own home. 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. Our house is so much warmer, quieter, and energy efficient that I wish we had done this years ago. We just love our new windows and would highly recommend Gravina’s to anyone looking for great value and comfort in windows and siding.

    James & Irma, Littleton
  • I ordered custom three-glass windows from Gravina’s and have been very happy with the service, installation and windows. The staff is very courteous and aim to please. It took me several years and three different times to get all of the windows installed since I had lots of huge windows. Each time I ordered more windows I was given the same attention and even a discount for being a return customer. I am happy that all of the windows and a security door have been installed and feel confident that Gravina will continue to stand by their products. Most of my contact has been with Larry Gravina who is very professional and wants to make sure his customers are happy. I definitely am! Thanks, Larry!

    Ella
  • We bought our windows from Gravina’s because they had been referred to us by family and friends who raved about them. We are delighted with our new windows! Their prices were more than competitive and their selection was unbeatable. Who wants to drive around looking everywhere when you can make one stop and accomplish the same thing! The house is now tightly sealed and amazingly comfortable. I would wholeheartedly recommend Gravina’s to anyone in the market.

    Ed and Benita, Denver
  • I shopped for windows but was pleased when a man in the construction industry recommended Gravina’s. I liked the salesman and the price seemed reasonable. The day of the install was a breeze and I thought everything went well. It was relatively quick and they cleaned up everything as they worked. I believe I got a good quality product that has been professionally installed. Larry also followed up with me on a tiny repair that needed to be done on a lock that came broken. He was polite on the phone and assured me that the problem would be taken care of. Purchasing window replacements is a major investment to a homeowner, and I am happy with my choice.

    Jane, Denver
  • I have been a general contractor for over 25 years so I know working with the construction industry can be quite a unique experience. I met with over 6 window companies and became extremely frustrated! The pricing and professional opinions were from one extreme to the other. I was about to throw in the towel and just roll the dice until I called Gravina’s. I was very impressed talking with Larry the owner about his knowledge and honesty. The sales person Michael was very professional and never pushy. The installers were always on time, very clean, and took pride in their work. After the job was completed the owners son and the salesman came back to inspect the work and make sure I was completely satisfied. The pricing was fair and the windows are a GREAT value. I would highly recommend this company.

    Joe R.
  • We have had windows installed by Gravina’s in the past and were very pleased with the quality and installation. Since we had used Gravina’s before, we did not hesitate to call them again when we had moved to a new home. They were again very impressive from the initial bid to final installation. Their install crew was awesome and was very courteous and professional. In our previous home after six months, we noted that there was a crack in one of the panes of our bow window. We called them and they ordered the pane immediately and within three weeks, they installed the new pane. You can get good deals with most every company, but as far as we are concerned, we have been treated well by Gravina’s and will use them again when the time comes. It isn’t always about who is the cheapest. We want good customer service and a quality product and certainly get that with Gravina’s.

    Ronald, Littleton
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