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5 Best Window Companies in Denver (2026)

Ranked by real Google ratings and review volume · How we chose

Brad Smith
By Brad Smith, Home Services Expert · ✓ Updated · 7 min read

We compared 19 window companies in Denver on Google Maps · 5 listed · How we rank

Swapping out old windows is one of those jobs you want done once and done right. The window companies in Denver below hold more than 11,000 Google reviews between them, and one name, Renewal by Andersen, accounts for more than 7,000 of those, while ratings run from 4.3 up to 4.8. Big national brands and small glass shops share this list, so what you are replacing matters as much as the star average.

Short answer: Renewal by Andersen Window Replacement is the top pick, rated 4.8 stars on more than 7,000 Google reviews. True View Windows & Glass also holds 4.8 on more than 570 reviews, and Ameritech Windows sits at 4.7 on more than 930. Pricing depends on the frame, glass, size and number of openings, so ask for a written quote from each.
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Denver Window Companies Side by Side

# Business Rating Reviews Best for
1 Renewal by Andersen Window Replacement 4.8 ★ 7,126 Whole-house replacement View ›
2 Champion Replacement Windows of Denver 4.3 ★ 2,597 Windows plus doors and siding View ›
3 Ameritech Windows 4.7 ★ 936 Local, custom-made windows View ›
4 True View Windows & Glass 4.8 ★ 572 Glass pane and window repair View ›
5 Window World of Denver 4.6 ★ 519 Vinyl windows, no-pressure estimates View ›
5 Best Window Companies in Denver (2026)

Who does what, company by company

Renewal by Andersen Window Replacement logo
#1 Overall🕑 Open 7 days↩ Responds to reviews

Renewal by Andersen Window Replacement

4.87,126 Google reviews

Renewal by Andersen Window Replacement is the Denver location of a national window-replacement brand, based on West Bayaud Avenue. Google lists it as a window installation service, door supplier and window supplier. Reviewers describe multi-window jobs, from a 1955 brick house with its original single-pane windows to a farmhouse where large, old windows were swapped in a single day, with a salesperson handling the consultation and the financing options.

What people praise

  • Fast crews: one reviewer had six windows installed by the end of the day, another had seven replaced and framed in about a day and a half
  • Several reviewers noticed quieter, more comfortable rooms right after the swap
  • Installers laid down plastic, vacuumed and cleaned up, according to reviewers
  • A salesperson who explained payment and financing options before the order
Reputation scorecardrank in Denver
Rating4.8 / 5
Review volume7,126 · 97th
Confidencevery high
Recency3 months ago
Info completenesssite · phone · hours
Rating breakdown94% 5-star
✓ VerifiedSource: Google

Our take: It holds the largest review base on this page at 4.8, and reviewers describe multi-window replacement jobs. Windows here are custom, so get the full quote and the delivery timeline in writing.

Website+1720-303-8859 Directions

1401 W Bayaud Ave #7, Denver, CO 80223

Champion Replacement Windows of Denver logo
#2🕑 Open 7 days↩ Responds to reviews

Champion Replacement Windows of Denver

4.32,597 Google reviews

Champion Replacement Windows of Denver is the local branch of the Champion Windows brand, on East 40th Avenue. Its site lists replacement windows in several styles along with sunrooms, entry and exterior doors, siding and roofing, and describes the company as a single-source manufacturer. One reviewer picked Champion because sales, manufacturing and installation all come from one company.

What people praise

  • Reps who walk through the whole project and answer questions, according to several reviewers
  • A short warranty document that one reviewer called clear and easy to follow
  • One reviewer noticed how much the new windows cut outside noise
  • Windows, doors and siding can come from the same company

Worth knowing

  • One reviewer said Champion's prices can look higher than other contractors, then weighed that against the warranty
  • Its 4.3 Google average is a step below the others on this page
Reputation scorecardrank in Denver
Rating4.3 / 5
Review volume2,597 · 92nd
Confidencehigh
Recency2 months ago
Info completenesssite · phone · hours
Rating breakdown79% 5-star
✓ VerifiedSource: Google

Our take: A second-largest review base here with a rating lower than its neighbors. Reviewers who bought are happy with the reps and the warranty, so compare its quote line by line against another bid.

Website+1303-800-2129 Directions

10035 E 40th Ave Ste 400, Denver, CO 80238

Ameritech Windows logo
#3🕑 Open 7 days↩ Responds to reviews

Ameritech Windows

4.7936 Google reviews

Ameritech Windows is a Denver window, door and siding company on East 66th Avenue, and its site says it has been family owned and operated since 1994. It sells triple-pane and custom-made windows, sliding patio doors and bay windows, and its site mentions financing and a free quote. Reviewers describe window and patio-door installs, one of them a customer of the owner for more than 20 years.

What people praise

  • Reviewers praise the installation crews as professional and courteous
  • One reviewer felt the difference right away, warmer in winter and cooler in summer, after a slider and large window
  • Repeat customers: one reviewer used the company twice for patio doors and windows
  • A salesperson who came out for a late appointment to fit a family's schedule

Worth knowing

  • Promotions advertised on its site carry a window minimum and new-customer terms, so read the fine print
Reputation scorecardrank in Denver
Rating4.7 / 5
Review volume936 · 87th
Confidencevery high
Recency7 weeks ago
Info completenesssite · phone · hours
Rating breakdown88% 5-star
✓ VerifiedSource: Google

Our take: A locally run option rated 4.7 with a long record in the metro. Strong pick for custom-sized windows and patio doors.

Website+1983-210-3583 Directions

1748 E 66th Ave, Denver, CO 80229

True View Windows & Glass logo
#4🕑 Open 5 days/wk↩ Responds to reviews

True View Windows & Glass

4.8572 Google reviews

True View Windows & Glass works out of Westminster and serves the Denver Front Range, along with Phoenix and Tucson, according to its site. Beyond replacement windows it lists glass repair, shower enclosures and commercial glass, and Google also tags it for aluminum and PVC windows. Reviewers mostly describe glass jobs: a large multi-panel slider pane, window glass in an old window well and a pair of replacement windows.

What people praise

  • Handles unusual glass work, such as a massive slider pane that several other companies hesitated to quote, said one reviewer
  • Crews that clean up and move furniture back, according to reviewers
  • A friendly, knowledgeable phone contact who matched another company's quote, per one reviewer
  • Technicians who explain the fix and what a future window upgrade would involve

Worth knowing

  • Open weekdays only, 8 AM to 5 PM
  • Based in Westminster rather than Denver proper
Reputation scorecardrank in Denver
Rating4.8 / 5
Review volume572 · 82nd
Confidencehigh
Recency3 months ago
Info completenesssite · phone · hours
Rating breakdown93% 5-star
✓ VerifiedSource: Google

Our take: A glass specialist first and a window company second, rated 4.8. Best when you need a pane replaced or a broken seal fixed rather than a whole-house swap.

Website+1720-431-8783 Directions

3200 W 71st Ave #20, Westminster, CO 80030

Window World of Denver logo
#5🕑 Open 5 days/wk↩ Responds to reviews

Window World of Denver

4.6519 Google reviews

Window World of Denver is the local branch of the national Window World brand, on East 76th Avenue. Its site describes vinyl replacement windows and entry doors, a free in-home estimate and made-to-order manufacturing. Reviewers name the same salesperson, Mike Cook, and installers who laid blankets over carpet and tidied up afterward.

What people praise

  • Reviewers describe a no-pressure sales process and no haggling
  • A written quote that one condo owner used for the HOA approval paperwork
  • Installers who called ahead and left the job site clean, according to reviewers
  • One reviewer's windows arrived in 5 weeks, sooner than the 8 to 12 weeks they had been told

Worth knowing

  • One reviewer was told delivery can take 8 to 12 weeks after a 50% down payment
  • Office hours run Monday to Thursday until 4 PM and Friday until 1 PM, with no weekend hours
Reputation scorecardrank in Denver
Rating4.6 / 5
Review volume519 · 76th
Confidencehigh
Recency7 weeks ago
Info completenesssite · phone · hours
Rating breakdown84% 5-star
✓ VerifiedSource: Google

Our take: A 4.6 rating on a steady stream of detailed reviews. Pick it when you want a straightforward vinyl-window quote, and confirm the lead time before you pay the deposit.

Website+1303-574-9594 Directions

480 E 76th Ave Bldg 5E, Denver, CO 80229

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How the scorecards work

Each number on this page comes from public Google data on the date shown. Rating is the live Google star average. Review volume is how many customers have rated the business, compared with the other window companies in Denver. Confidence weighs the rating by that volume, so a 4.8 on thousands of reviews carries more weight than a 4.8 on a few dozen. Recency reflects how recently customers still leave reviews. No business can edit these figures.

What drives window replacement cost in Denver (2026)

Window pricing depends on the frame material, the glass package, the size and shape of each opening and how many windows are replaced in one visit. Made-to-order windows take time to build, so the quote and the delivery schedule belong in writing together.

Window companies serving the Denver area

Most of these businesses list Denver addresses, while True View Windows & Glass operates from Westminster, just north of the city. Ameritech’s site refers to homes along the Colorado Front Range, and True View’s refers to the Denver Front Range. Searching for window companies near me? Each listing shows a direct phone number and map link so you can call the closest option.

Before you sign a window contract

  • Are the windows made to order, and how long is the gap between measuring and installation?
  • Is installation done by your own crew or a subcontractor?
  • What does the warranty cover, and is it a short document or a long one?
  • I live in a condo or HOA community. Can you give me a written quote for the approval packet?
  • How will you protect floors and carpet, and who cleans up at the end of the day?

Frequently asked questions

Who in Denver can replace just a cracked or foggy pane of glass instead of the whole window?

True View Windows & Glass is the one on this list that reviewers describe for glass-only work. One customer had a large multi-panel slider pane replaced in about an hour, and another had glass swapped in an old window well. Renewal by Andersen, Champion, Ameritech and Window World are described mainly for full window replacement.

How long does a window installation take once the crew arrives?

Reviewers describe one to two days for a typical house. One Renewal by Andersen customer had six windows installed by the end of the day, and another had seven replaced and framed in about a day and a half. The wait before that is longer: a Window World customer was quoted 8 to 12 weeks for made-to-order windows and received them in 5 weeks.

Which Denver window company handles sales, manufacturing and installation under one roof?

Champion’s site describes it as a single-source manufacturer, and one reviewer chose it because sales, manufacturing and installation all come from the same company. Window World’s site also describes a made-to-order process run from estimate to installation. Ask each company who builds the windows and who installs them.

I live in a condo with an HOA. Do I need approval before ordering new windows?

One Window World customer who lives in a condo said the written quote helped with the paperwork submitted to the HOA, and advised getting approval first. Rules vary by community, so check your own HOA requirements before you pay a deposit on custom windows.

The short version

Renewal by Andersen is the safe default for a multi-window replacement, backed by the biggest review base here. Choose True View for a single pane or repair, and Ameritech if you want a locally run company for custom windows and patio doors. Whoever you call, get the quote and the delivery timeline in writing.

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