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Gravina’s® Windows & Siding

Windows and doors Company in Denver, Colorado.

Gravina’s® Windows & Siding is a window company based in Denver, CO. Its listed services include window replacement and entry door installation. Its EPA lead-safe certification badge is reported by the company and not yet verified, so check it with U.S. Environmental Protection Agency before work starts.

4.6on Google · 362 reviews38 years in business
  • TenBestFind Reviewed
  • Top 10 Winner
  • iWhat do these badges mean?
    TenBestFind Reviewed
    Our editorial team has researched and reviewed this business.
    Verified Business
    Key business information or ownership has been verified against a primary source.
    Top 10 Winner
    The company currently appears in at least one active TenBestFind Top 10 ranking.
    Featured Partner
    A paid commercial relationship with TenBestFind. It never earns or influences a ranking position. This company holds no such relationship.

    Advertising & Sponsorship Disclosure

Quick Overview

iHow this is made

This summary is generated from the verified data on this profile: services, service area, credentials, warranty terms and the company's Google review record. It is reviewed by an editor before publishing and refreshed whenever the underlying data changes. Nothing here is asserted that is not stated elsewhere on this page.

Editorial Standards

Gravina's Windows & Siding is a family owned company that Larry Gravina started in 1988 after years in his father's home improvement business. His son Nick, who joined in 1997, now manages daily operations from the showroom at 950 West Evans Avenue. The company installs replacement windows, doors and siding in the Denver metro and Fort Collins areas and runs a service department for repairs. The site shows an EPA lead-safe badge, an AAMA logo and a Better Business Bureau mark, and names Marvin, Andersen and Pella among its brands. Financing is listed. Google shows 4.6 stars from 362 reviews, read November 3, 2026. It suits homeowners who want a local family firm with repair support.

  • Best for multi-generation family firm with a service department
  • Family owned since 1988, with Larry and Nick Gravina leading
  • 4.6 rating is a notch below the top companies on this list

Company Facts

Gravina’s® Windows & Siding at a Glance

By the numbers

Google rating
4.6out of 5
Customer reviews
362on Google
In business
38years

Rating and review count pulled from Google on November 3, 2026. Years counted from 1988.

The work

Best for
Multi-generation family firm with a service department
Primary service
Windows and doors

Where

Headquarters
Denver, CO
Service area
Denver
Emergency service
Not advertised

Money and guarantees

Free estimates
Yes
Financing
Available

Credentials

EPA lead-safe certification badge
EPA lead-safe certification badge (reported by the company, not verified)

Editorial Review

Our Take on Gravina’s® Windows & Siding

A multi-generation Denver family firm with a showroom, a repair department and lead-safe credentials. The rating is a notch below the leaders, but the history and service arm stand out.

Best forMulti-generation family firm with a service department

What We Like

  • Family owned since 1988, with Larry and Nick Gravina leading
  • Showroom at 950 West Evans Avenue in Denver
  • In-house service department for repairs
  • EPA lead-safe badge and AAMA logo shown on the site
  • Names Marvin, Andersen and Pella among its brands

Things to Consider

  • 4.6 rating is a notch below the top companies on this list
  • Closed Sunday and short Saturday hours
  • Siding is a major line, so confirm window and door terms separately

Customer Ratings

Google Reviews for Gravina’s® Windows & Siding

Customer ratings shown here come from Google. They are separate from our editorial review above.

Google rating

4.6

Based on 362 Google reviews

Review data updated November 3, 2026

View on Google Maps

Rating Distribution

  • 5 stars86%
  • 4 stars4%
  • 3 stars1%
  • 2 stars1%
  • 1 star7%
iAbout this distribution

The distribution reflects the 362 Google reviews available when this profile's review data was last refreshed on November 3, 2026. Ratings and counts change continuously on Google, so figures here may lag the live profile slightly. We publish only the values returned by the source, never estimates for missing bands.

Editorial Standards

Recent Google Reviews

  • Eric Blackman5.0

    Gravinas has been amazing over two separate rounds of replacing windows and an old door. Pricing was very competitive, they worked with us on a number of different options to fit our budget. Communication was clear from quote/purchase all the way through installation. Instal was quick and clean, very courteous crew across the board, can’t recommend Gravina‘s enough.

    November 2026Google
  • Mik Kelley5.0

    Gravina's made and installed a custom sliding glass door for us. From the very beginning if this project, Nick Gravina was professional and listened to our requests and concerns. His timeframe was spot on and his installers, James & David, were skilled and professional.<br>The door is wood and Nick recommended Victor Sandoval, to stain & seal the door. It is just perfection.<br>I will forever recommend Gravina's. They are the best.

    October 2026Google
  • Michael Gnacinski5.0

    Paid attention to details and guided through the process to make the best decision for the customer. Not their pockets. Would use again

    October 2026Google
  • Landon Brown5.0

    Worked with a short timeframe and did a great job on the entire project.

    October 2026Google
  • L R5.0

    After getting multiple estimates from a range of companies, we chose Gravina's to replace two large windows in our garage. The price was reasonable, communication throughout the process was very good and Jeremy, the installer was excellent.

    October 2026Google
  • Jessica Corey5.0

    I couldn’t be more pleased with my experience at Gravina’s. Andy came out and really worked with me on getting all the various window options to fit what I wanted. I have a 1906 house with originally windows (single pane rope side pull up windows) so I was nervous about replacing them but still maintaining the look and character of the home. After talking with Andy, I ended up getting 3 different types of windows for my home. 8 windows (including a big front window) ran me about 15k which was very competitive pricing. Just be aware there is a wait time for delivery of windows (around 2-3 mos) which I do believe is industry standard. Installation went very smoothly, they maintained my beloved interior trim and I love my new windows! Also just so you’re aware if like me you are getting them stained to match interior, the installation and staining guy are two different guys (which makes sense) so you will need to schedule on two different days.

    October 2026Google

View more Google reviews

Ranked#4of 9 siding companies in Denver, COre-checked November 2026

Editorial Ranking

Why Gravina’s® Windows & Siding Made Our Top 9

It holds position 4 in 9 Best Siding Companies in Denver, CO (2026).

See the Full Denver RankingPositions cannot be bought

What They Do

Services Offered

Works in Windows and doors and Siding.

Areas Served

Based in Denver, CO.

iAbout service coverage

Coverage is as the business describes it, cross-checked against where its recent documented work is. A company will often travel beyond the areas listed here for a large job and decline a small one at the same distance, so confirm your address before scheduling.

Editorial Standards

Company Background

About Gravina’s® Windows & Siding

Gravina's Windows & Siding is a family owned Colorado company with a showroom at 950 West Evans Avenue in Denver. According to its website, Larry Gravina began working for his father in the home improvement business in 1972, spent 16 years learning the window, siding and construction trades, and started Gravina's in 1988, selling windows door to door. His son Nick began working for him in 1997 and now manages day-to-day operations. The site credits Larry with more than 50 years in the industry and Nick with 25.

The company installs replacement windows, replacement doors and siding for homeowners in the Denver metro and Fort Collins areas. It also runs a service department, which reviewers on the site mention by name for repairing sliding glass doors and other hardware. That repair arm is uncommon among replacement companies and is useful for homeowners with older units that need parts rather than replacement. The website displays an EPA lead-safe badge, an AAMA logo and a Better Business Bureau mark, and names Marvin, Andersen and Pella among the brands it works with. Those are the company's own claims and are worth confirming with the issuers. A financing page is listed.

Siding is a major line, not an add-on. The siding page covers replacement and installation in horizontal and vertical profiles, along with gutters and downspouts, and the site shows Louisiana-Pacific, Crane and Revere logos among its product partners. Gravina's says it has completed more than 100,000 projects across Denver and Fort Collins since 1988, and the showroom lets you see materials in person before you buy. Confirm the specific siding line and its warranty in your written quote.

Google shows 4.6 stars from 362 reviews, read November 3, 2026. Showroom hours are weekdays 7:30 AM to 4:30 PM, Friday until 4 PM, and Saturday 10 AM to 1 PM.

Gravina's suits homeowners who want a long-established local family company, who may need a repair visit later, and who like to see products in a showroom. It suits people less well who want evening or Sunday availability. Before booking, ask for a written quote that names the brand and series for each opening or siding profile, ask whether your home's age triggers lead-safe work, and ask for the warranty terms on paper. Colorado has no state licence for window or siding installers, so licensing is handled by cities. Ask whether the company is registered with the City and County of Denver and carries liability insurance.

iWhere this information comes from

Company history, ownership and capability details on this page are provided by the business and reviewed by our editors for plausibility and consistency. They are not the same as the credentials block, where each item carries its own verification status and source.

Editorial Standards

Credentials

  • EPA lead-safe certification badgeU.S. Environmental Protection AgencyReported
  • AAMA membershipAmerican Architectural Manufacturers AssociationReported
  • Better Business Bureau listingBetter Business BureauReported
iWhat verified means here

Verified means we checked the credential against the authority that issues it and recorded the date. Reported means the business told us and we could not independently confirm it. We publish both, labelled, rather than dropping what we could not check.

Editorial Standards

Other Sources

Reputation by Source

We show each source separately rather than blending them into a single score, because they measure different things.

  • Google

    4.6/ 5

    362 customer reviews

  • TenBestFind

    Editorially reviewed

    Ranked #4 in Denver siding, November 2026

Pricing

Company Pricing & Estimates

What this company publishes about its own pricing.

Free estimates
Yes
Financing
Available

Gallery

Project Photos

Business-submitted, reviewed by our editors

  • Gravina’s® Windows & SidingGravina’s® Windows & Siding
  • Gravina’s® Windows & SidingGravina’s® Windows & Siding
  • Gravina’s® Windows & SidingGravina’s® Windows & Siding
  • Gravina’s® Windows & SidingGravina’s® Windows & Siding
  • Gravina’s® Windows & SidingGravina’s® Windows & Siding

Compare

Similar Windows & Doors in Denver

Gravina’s® Windows & Siding FAQs

  • What credentials does Gravina's Windows & Siding show?

    Its website displays an EPA lead-safe badge, an AAMA logo and a Better Business Bureau mark. Confirm each with the issuer. Colorado has no state licence for window installers, so also ask whether it is registered with the City and County of Denver and request proof of insurance.

  • What are Gravina's showroom hours?

    Google lists Monday to Thursday, 7:30 AM to 4:30 PM, Friday 7:30 AM to 4 PM and Saturday 10 AM to 1 PM, closed Sunday. The showroom is at 950 West Evans Avenue in Denver. The company does not advertise emergency service.

  • Does Gravina's repair windows or only replace them?

    Gravina's runs a service department, and customer testimonials on its website describe repairs to sliding glass doors. It also installs replacement windows, doors and siding and lists financing options. Ask whether your older units can be repaired before you commit to replacement.

  • Is Gravina’s® Windows & Siding licensed and insured?

    We checked 0 of 3 credentials against the issuing authority. Verified items carry the date we checked; reported items are what the business told us and we could not independently confirm.

  • What areas does Gravina’s® Windows & Siding serve?

    Denver. Coverage is as the business describes it, cross-checked against where its recent documented work is. Confirm your address before scheduling, particularly at the edge of a service area.

  • Does Gravina’s® Windows & Siding offer emergency service?

    Emergency availability is not listed for this company. If you need an urgent call-out, check the ranking for companies that do list it.

  • What warranty do they offer?

    Warranty terms are not on file. Ask for them in writing before work starts.

  • How was this profile built?

    Credentials come from issuing authorities, ratings from the company's Google Business Profile with the date we read them, and the editorial take from our own review of estimates, warranty documents and public feedback. Anything the business told us is labelled as reported.

  • Can a business pay to improve its profile?

    A business can subscribe to manage its own listing details, and it can buy a labelled sponsored placement. Neither changes a ranking position or the editorial assessment on this page.

Is Something Incorrect?

Business information changes. Tell us about an address, phone, website, service area, credential or ownership change, or let us know if this company has closed.

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Claiming lets you correct and maintain the factual information on this profile. Claiming or upgrading a profile does not guarantee inclusion in a TenBestFind ranking and never affects ranking position, which is decided editorially.

How We Rank

About This Business Profile

Last reviewed
November 2026
Profile last updated
November 11, 2026
Google review data updated
November 3, 2026
Sources checked
Issuing authorities, Google Business Profile, Company website
Could not verify
EPA lead-safe certification badge (reported only), insurance
Sponsorship status
No commercial relationship
Gravina’s® Windows & Siding4.6 on Google · Denver, COVisit Website