20 Best Window Companies in Denton, TX (2024 Reviews)

Looking to improve your home’s appearance? The top window replacement companies can help.

We analyzed all the top-rated window companies in Denton and selected the best 20 based on:

  • Customer reviews
  • Window installation expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated February 01, 2024

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

Whether you're updating for style or have damaged windows, windows play a vital role in conserving electricity in your home. When it’s the middle of summer, your old and drafty windows could be making your home more difficult to cool and more uncomfortable for you.

That’s not great for your wallet or the environment, but one of the best window installation companies can help with that.

As windows have such a big impact on your home, selecting the best company for you is a big choice to make. That’s why the EcoWatch team has curated this list of the top window replacement companies, so you can more easily make an informed decision.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house
Buy One Window, Get One 40% OFF
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Buy 2 Windows, Get 2 Free
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best Window Installation & Replacement Companies in Denton

The EcoWatch team examined many window providers in Denton to find the top ones for our readers. We assessed the installers on their energy-efficient offerings, local experience, price, customer service, coverage area and more.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World has windows expertise in Denton. Window World has over 27 years of experience in the windows industry, and it currently serves 200 locations nationwide. The company has plenty of glowing reviews from customers online.

It is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.

Energy Efficiency of Window World Windows

Window World’s commitment to sustainability can be seen in its energy-efficient window offerings. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.

How much does Window World cost in Denton?

Prices are not available on Window World’s website since the cost of window installment differs based on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. Receiving a free quote on its website is the best way to get more accurate pricing information.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen has the best availability in Denton. Andersen has over 27 years of experience in the windows industry, and it currently serves nearly every state except Mississippi and West Virginia. The company has plenty of glowing reviews from customers online.

It uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.

Energy Efficiency of Renewal by Andersen Windows

Renewal by Andersen’s commitment to sustainability can be seen in its energy-efficient window offerings. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.

How much does Renewal by Andersen cost in Denton?

Prices are not available on Andersen’s website since the cost of window installment differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Receiving a free quote on its website is the best way to get more accurate pricing information.

Universal Windows Direct logo
FAST QUOTE
as little as 30 seconds
Best Warranty

Universal Windows Direct

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 2002
Pros:
  • Pros icon Makes charitable contributions
  • Pros icon Manufactures products in-house
  • Pros icon Wide variety of products and services
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Limited service area
  • Pros icon Some installations carried out by third-party contractors
  • Pros icon Quality of service will depend on your area

Universal Windows Direct has the best warranty in Denton. Universal has over 20 years of experience in the windows industry, and it currently serves 27 states nationwide. The company has plenty of glowing reviews from customers online.

It has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct’s commitment to sustainability can be seen in its energy-efficient window offerings. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.

How much does Universal Windows Direct cost in Denton?

Prices are not available on Universal’s website since the cost of window installment differs based on how many and what type(s) of windows you need. However, installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. Receiving a free quote on its website is the best way to get more accurate pricing information.

Texas Window Store logo
FAST QUOTE
as little as 30 seconds
Great Local Choice

Texas Window Store

★★★★★
BBB Rating: A+
Locations: Texas-Specific
Founded: 2018
Pros:
  • Pros icon Low prices relative to competitors
  • Pros icon Low number of customer complaints
  • Pros icon Wide variety of products and services
  • Pros icon Limited service area
Cons:
  • Pros icon Young company

Texas Window Store has the best local installation in Denton. Texas Window Store has over 4 years of experience in the windows industry, and it currently serves Austin, Waco and surrounding areas. The company has plenty of glowing reviews from customers online.

It has dedicated customer service and can carry out an installation in a timely manner.

Energy Efficiency of Texas Window Store Windows

Texas Window Store’s commitment to sustainability can be seen in its energy-efficient window offerings. It carries a wide variety of name-brand windows, including Andersen and Pella, so the company has many energy-efficient options.

How much does Texas Window Store cost in Denton?

Prices are not available on Texas Window Store’s website since the cost of window installment differs based on how many and what type(s) of windows you need. However, it pitches your project to a group of window manufacturers, and says window costs are typically based on five factors: size, type, material, geographical region and dealer/reseller. Receiving a free quote on its website is the best way to get more accurate pricing information.

Window Nation logo
FAST QUOTE
as little as 30 seconds
Best for Residential Windows

Window Nation

★★★★★
BBB Rating: A
Locations: Regional
Founded: 2006
Pros:
  • Pros icon Award-winning company
  • Pros icon Manufactures products in-house
  • Pros icon Custom designs
  • Pros icon Wide variety of products and services
Cons:
  • Pros icon Installation not covered by warranty
  • Pros icon Limited service area

Window Nation has the best residential windows in Denton. Window Nation has over 16 years of experience in the windows industry, and it currently serves residents within 75 miles of its showrooms, which are in 13 states. The company has plenty of glowing reviews from customers online.

It gives customers the opportunity to view products and to speak to a representative in person in its showrooms.

Energy Efficiency of Window Nation Windows

Window Nation’s commitment to sustainability can be seen in its energy-efficient window offerings. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.

How much does Window Nation cost in Denton?

Prices are not available on Window Nation’s website since the cost of window installment differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. Receiving a free quote on its website is the best way to get more accurate pricing information.

We’ve recommended installers with shining reputations, but bear in mind that these are national companies, so your service may depend on your local crew. We have tried to remain unbiased and transparent by listing pros and cons for each company reviewed.

More Window Companies in Denton

Renewal by Andersen Window Replacement

Carrollton, TX
4.8
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Custom Window Designs
  • Service icon Glass Doors
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung
  • Service icon Bay Windows

Website: https://dallaswindowsdoors.com/
Address: 1215 W Crosby Rd #180, Carrollton, TX 75006
Phone: (469) 217-9016

Champion Replacement Windows of Ft. Worth

Fort Worth, TX
4.4
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Bay Windows

Website: https://www.championwindow.com/Ft-Worth/
Address: 2951 Northern Cross Blvd #249, Fort Worth, TX 76137
Phone: (817) 349-7819

Champion Glass & Mirror

Benbrook, TX
3.2
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Doors
  • Service icon Glass Showers
  • Service icon Window Replacement/Installation
  • Service icon Custom Window Designs
  • Service icon Mirrors

Website: https://www.championglassfortworth.com/
Address: 7337 W Vickery Blvd, Benbrook, TX 76116
Phone: (817) 731-7403

Window World of Dallas-Fort Worth

Richardson, TX
4.5
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Educational Website

Services Offered

  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Custom Window Designs

Website: https://www.windowworlddfw.com/
Address: 600 N Coit Rd Suite 2052, Richardson, TX 75080
Phone: (972) 623-9998

Window Nation

Grand Prairie, TX
4.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Custom Window Designs
  • Service icon Double-Hung

Website: https://www.windownation.com/window-replacement-dfw/
Address: 2940 N Hwy 360 #300, Grand Prairie, TX 75050
Phone: (972) 332-5412

DaBella

Dallas, TX
  • Pros icon Timely Service
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Double-Hung

Website: https://dabella.us/location/dallas/
Address: 4835 Lyndon B Johnson Fwy #1100, Dallas, TX 75244
Phone: (214) 239-4506

Gizmo Glass Replacement

Denton, TX
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Doors
  • Service icon Glass Showers
  • Service icon Glass Repair
  • Service icon Window Repair
  • Service icon Mirrors
  • Service icon Window Replacement/Installation

Website: https://gizmoglass.com/
Address: 3609 Andalusian Dr, Denton, TX 76210
Phone: (940) 291-4916

Glass Doctor of Denton

Denton, TX
4.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Repair
  • Service icon Tempered Glass
  • Service icon Mirrors
  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Custom Glass
  • Service icon Glass Repair

Website: https://glassdoctor.com/denton
Address: 1121 Shady Oaks Dr, Denton, TX 76205
Phone: (940) 312-7190

Texas Windows

Lewisville, TX
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Repair
  • Service icon Window Replacement/Installation
  • Service icon Custom Window Designs

Website: https://www.texaswindows.com/
Address: 217 S Stemmons Fwy # 202, Lewisville, TX 75067
Phone: (469) 771-3049

LD Glass

Lewisville, TX
4.6
★★★★★
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Repair
  • Service icon Mirrors
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Glass Showers
  • Service icon Storm/Impact Windows

Website: https://www.glasscompanylewisvilletx.com/
Address: 1288 W Main St #210, Lewisville, TX 75067
Phone: (972) 436-3787

Custom Exteriors

Krum, TX
3.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.customexteriorstx.com/
Address: 810 E McCart St, Krum, TX 76249
Phone: (940) 482-3426

Frisco Window Cleaning Service

Frisco, TX
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation

Website: https://friscowindowcleaningservice.com/
Address: 2770 Main St Suite 274, Frisco, TX 75033
Phone: (469) 777-8947

Vielman Glass Works

Krugerville, TX
2.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Vinyl Frames
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Glass Showers
  • Service icon Fiberglass Frames
  • Service icon Metal Frames
  • Service icon Glass Doors
  • Service icon Mirrors
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: http://vielmangworks.com/
Address: 5335 US-377, Krugerville, TX 76227
Phone: (940) 488-5200

Lone Wolf Exteriors

Lewisville, TX
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Window Replacement/Installation

Website: https://www.lwexteriors.com/
Address: 4400 State Hwy 121 #300, Lewisville, TX 75056
Phone: (855) 200-9653

Pella Windows & Doors of Frisco

Frisco, TX
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Glass Doors

Website: https://www.pellabranch.com/dallas/showrooms/pella-window-and-door-showroom-of-plano/
Address: 10050 Legacy Dr Ste 300, Frisco, TX 75034
Phone: (469) 277-8691

Radiant Windows & Glass

Southlake, TX
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Repair
  • Service icon Energy-Efficient Options
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Glass Showers
  • Service icon Glass Repair

Website: https://www.radiantwindowsglass.com/
Address: 500 N Kimball Ave #108, Southlake, TX 76092
Phone: (817) 565-3652

The Glass Guru

Prosper, TX
4.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Fiberglass Frames
  • Service icon Tempered Glass
  • Service icon Glass Repair
  • Service icon Screen Repair
  • Service icon Triple Pane Glass
  • Service icon Glass Doors
  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation
  • Service icon Mirrors
  • Service icon Skylights
  • Service icon Custom Glass
  • Service icon Window Repair
  • Service icon Glass Showers
  • Service icon Metal Frames
  • Service icon Energy-Efficient Options
  • Service icon Wood Frames
  • Service icon Storm/Impact Windows

Website: https://www.theglassguru.com/frisco-tx/
Address: 450 Business Park Drive #105, Prosper, TX 75078
Phone: (469) 425-8879

Clarity Windows and Doors

Coppell, TX
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: http://www.claritywindows.com/
Address: 800 Freeport Pkwy #150, Coppell, TX 75019
Phone: (972) 393-3991

Town & Country Windows

Frisco, TX
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Glass Doors
  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Window Repair
  • Service icon Glass Repair

Website: https://tandcwindows.com/
Address: 4900 Preston Rd #102, Frisco, TX 75034
Phone: (972) 338-9230

Legacy Exteriors

Keller, TX
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors

Website: http://legacyexteriors.com/
Address: 8801 Davis Blvd Suite 2E, Keller, TX 76248
Phone: (817) 374-4969
Denton Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Denton, TX using our customized window cost calculator.

Estimated Window Cost:
161 homeowners have requested a free estimate in the last 3 days.

Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.

How Installing Energy-Efficient Windows in Denton Saves You Money

By upgrading to energy-efficient windows, you can take advantage of several benefits, such as:

  • Protect your investment: If you have a relatively old home, your windows are most likely in need of replacement. Upgrading your windows can make your home more comfortable and also help increase the value of your home if you decide to sell.
  • Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out damaging UV rays.
  • Save money on energy bills: After you install energy-efficient windows, you can see a reduction in your bills by about 12% because you’ll need less energy to heat or cool your house.
  • Reduce your carbon footprint: In Denton, you can lower your indirect greenhouse gas emissions by about 507 pounds per year when you upgrade to energy-efficient windows.

Estimated Cost of Window Replacement in Denton

Let’s take a look at the cost of window replacement and the types of services you may need for your home.

How Much Do New Windows Cost?

On average, Denton homeowners can expect their window replacements to range from $250 to $1,200. The most common installations sit at around $600. This is due to the fact that window installations are based on several factors specific to your home, including the size, material and number of windows you need to install, as well as the location of your property.

Bear in mind that energy-efficient windows may cost more upfront, but Energy Star estimates the upgrade will save you between $101 and $583 a year when you replace single-pane windows and between $27 and $197 a year when you replace double-pane, clear glass windows. Your savings will vary depending on your local climate, energy rates and individual home characteristics.

We advise requesting free quotes from multiple window companies to find the one that works best for your budget.

What Services do Window Installers Offer?

In general, there are two types of window installation services companies provide: full-frame and pocket installations.

Full-frame installations entail replacing the full window, including the trim, frame and sill. Full-frame installations are necessary when you want a new style or your window has significant damage or rot. These installations are more involved and will raise overall costs. Pocket installations are on the simpler end and won’t cost as much, as they entail simply replacing the window within its existing frame. But if the frame has any damage or rot, you may have to get a full-frame installation instead.

Your window replacement company will be able to help you figure out what’s best for your needs. In Denton, the decision will mostly depend on how old your home is and if there’s any moisture damage. Wood can decay if not properly maintained over the years, so it’s good to have a professional check your frames and window sills.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house
Buy One Window, Get One 40% OFF
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Buy 2 Windows, Get 2 Free
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

How We Choose the Best Window Installers in Denton

In our search to find the most reliable, eco-friendly window installers in Denton, the EcoWatch team chose the above companies as the best window installation companies in the city. Along with energy efficiency, we evaluated several window installers in Denton and ranked them using the following methodology:

Service Area

This one is self-explanatory, but we’ve chosen to highlight window installers that serve the Denton area so you can find a quality window installation company near you.

Work Quality

When it comes to new windows, the quality and breadth of services often plays just as important of a role in overall efficiency and performance as the brand you choose. We do give window installers higher marks if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

Customer Reviews

Customer feedback is another super important review factor. If most customers don’t have nice feedback about their service from a certain company, you won’t see it featured on EcoWatch.

Cost

This one is a give-and-take: similar to most services, cheap window companies won’t always provide the most quality service. Still, we want to ensure we’re highlighting companies that offer a spectrum of price and financing options so they’re accessible to most homeowners.

Warranty

As discussed previously, windows are a serious investment, so you’ll want to make sure that investment is well protected. Window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Because of Denton’s climate, homeowners will want to mitigate rot, water damage and low efficiency. We factored in local experience to reflect the ability of Denton window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.

Denton, TX Window Replacement FAQs

What is the typical cost to replace windows in a home?

The national average cost of installing a window is around $600 but can range from $200 to $1,200, depending on several factors. The price is usually influenced by the type and material of the window, the location of your property and the size of the window. Also, keep in mind that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.

What are the most common types of replacement windows?

There are several different kinds of windows you can get for your house, such as double-hung and single-hung windows, transom windows, picture windows, slider windows, bay windows, casement windows and awning windows.

Do I really have to use a window installation company?

You should use a window installation professional whenever you need new windows. Installing windows is a complex process that can be difficult to do on your own, so it’s best handled by the professionals.

What time of year is the best time to replace my windows?

Although you can install windows any time of year, warmer weather is often better for replacing windows. Additionally, it shouldn’t be raining, since rain can make the installation more difficult.

How long does it take to install windows?

Since the average installation time of a window is 30 minutes, around 16 windows can be installed in a typical 8-hour work day.