20 Best Window Companies in The Woodlands, TX (2024 Reviews)

Are you thinking of replacing your windows? Our guide to the best window installation companies can help you narrow down which one to choose.

We analyzed all the top-rated window companies in The Woodlands 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.

The EcoWatch Reviews team is all about helping The Woodlands homeowners make their homes more eco-friendly. Drafty or leaky windows can make your home uncomfortable in the summer or winter.

That’s bad news for your wallet and the environment, but one of the top window installation companies can help you with that.

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

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 The Woodlands

The EcoWatch team evaluated dozens of installers that service the The Woodlands area to find the best window installation companies by our standards. The installers in this article scored the best in our review categories, such as energy-efficient offerings, customer service, price, availability, local expertise 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 provides windows expertise in The Woodlands. Window World has been in the window business for about 27 years.

If you’re looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, this may be the provider for you.

Energy Efficiency of Window World Windows

Window World carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. 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 The Woodlands?

Window World does not outline prices on its website, but it's known for offering some of the most affordable window installations around. For more detailed information on the cost, you can inquire about a quote from the company.

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 provides the best availability in The Woodlands. Andersen has been in the window business for about 27 years.

If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, this may be the provider for you.

Energy Efficiency of Renewal by Andersen Windows

Renewal by Andersen carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. 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 The Woodlands?

Andersen does not outline prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more detailed information on the cost, you can inquire about a quote from the company.

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 provides the best warranty in The Woodlands. Universal has been in the window business for about 20 years.

If you’re looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, this may be the provider for you.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. 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 The Woodlands?

Universal does not outline prices on its website, but 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. For more detailed information on the cost, you can inquire about a quote from the company.

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 provides the best local installation in The Woodlands. Texas Window Store has been in the window business for about 4 years.

If you’re looking for a company that has dedicated customer service and can carry out an installation in a timely manner, this may be the provider for you.

Energy Efficiency of Texas Window Store Windows

Texas Window Store carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. 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 The Woodlands?

Texas Window Store does not outline prices on its website, but 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. For more detailed information on the cost, you can inquire about a quote from the company.

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 provides the best residential windows in The Woodlands. Window Nation has been in the window business for about 16 years.

If you’re looking for a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms, this may be the provider for you.

Energy Efficiency of Window Nation Windows

Window Nation carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. 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 The Woodlands?

Window Nation does not outline prices on its website, but 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. For more detailed information on the cost, you can inquire about a quote from the company.

We try to be unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.

More Window Companies in The Woodlands

Renewal by Andersen

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

Services Offered

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

Website: https://www.renewalbyandersen.com/window-company/731-houston-tx/retailer
Address: 9825 Farm to Market 2920, Tomball, TX 77375
Phone: (281) 378-6000

Champion Forest Exteriors, Inc.

Houston, TX
3.0
★★★★★
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Energy-Efficient Options

Website: https://championforest.com/
Address: 13900 Schroeder Rd, Houston, TX 77070
Phone: (281) 444-7003

Window World of Houston

Houston, TX
4.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.windowworldhouston.com/
Address: 10540 Bissonnet St Suite 190, Houston, TX 77099
Phone: (713) 439-1172

DaBella

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

Services Offered

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

Website: https://dabella.us/location/houston/
Address: 24900 Pitkin Rd #110, Spring, TX 77386
Phone: (281) 524-4835

The Original Frameless Shower Doors - Houston

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

Services Offered

  • Service icon Custom Glass
  • Service icon Window Replacement/Installation
  • Service icon Tempered Glass
  • Service icon Glass Showers

Website: https://www.framelessshowerdoors.com/frameless-shower-doors-houston/
Address: 31907 FM2978, Magnolia, TX 77354
Phone: (281) 720-3955

Vizion Windows & Doors | Window Replacement Contractor

Tomball, TX
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Fiberglass Frames
  • Service icon Energy-Efficient Options
  • Service icon Wood Frames
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Metal Frames
  • Service icon Window Replacement/Installation
  • Service icon Storm/Impact Windows
  • Service icon Triple Pane Glass

Website: https://vizionwindows.com/
Address: 513 Mason St, Tomball, TX 77375
Phone: (832) 483-3249

The Window Source of Houston

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

Services Offered

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

Website: http://www.windowsourcehouston.com/
Address: 14211 Hirschfield Rd, Tomball, TX 77377
Phone: (281) 547-6900

New Image Construction and Roofing

Magnolia, TX
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Timely Service

Services Offered

  • Service icon Window Replacement/Installation

Website: http://newimage-contractors.com/
Address: 32315 Tamina Rd suite b, Magnolia, TX 77354
Phone: (832) 257-6389

Mr. Handyman of The Woodlands

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

Services Offered

  • Service icon Window Replacement/Installation

Website: https://www.mrhandyman.com/the-woodlands/
Address: 32914 Tamina Rd, Magnolia, TX 77354
Phone: (281) 823-7143

Glass Doctor of Spring, TX

Spring, TX
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

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

Website: https://glassdoctor.com/spring-tx
Address: 24430 Interstate 45 N, Spring, TX 77386
Phone: (832) 553-4399

ARC Glass

Spring, TX
4.9
★★★★★
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation

Website: https://www.arcglassservices.com/
Address: 2530 Spring Cypress Rd Ste A, Spring, TX 77388
Phone: (281) 362-9200

Multi-Glass of Texas LLC

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

Services Offered

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

Website: http://www.multiglassoftexas.com/
Address: 1018 Sawdust Rd #17, The Woodlands, TX 77380
Phone: (281) 367-1811

Texas Remodel Team

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

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Wood Frames
  • Service icon Vinyl Frames
  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Glass Showers

Website: https://www.texasremodelteam.com/
Address: 25275 Budde Rd #24, Spring, TX 77380
Phone: (281) 399-4062

DWR Exteriors LLC

Spring, TX
3.5
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

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

Website: https://dwrexteriors.com/
Address: 445 Spring Hill Dr Suite 101, Spring, TX 77386
Phone: (281) 419-4144

Mountain Glass & Mirror Inc.

Tomball, TX
3.2
★★★★★

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Mirrors

    Website: http://www.glassinstallationintomballtx.com/
    Address: 8710 Dogwood Dr, Tomball, TX 77375
    Phone: (281) 642-9957

    Stracoa Construction Services

    Magnolia, TX
    3.0
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Timely Service
    • Pros icon Price Transparency
    • Pros icon Educational Website
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Energy-Efficient Options
    • Service icon Window Replacement/Installation

    Website: https://stracoa.com/
    Address: 33130 Magnolia Cir Suite A-14, Magnolia, TX 77354
    Phone: (832) 521-3215

    Heritage Windows & Doors

    Spring, TX
    2.9
    ★★★★★
    • Pros icon Price Transparency
    • Pros icon Educational Website
    • Pros icon Free assessment
    • Pros icon Good Customer Service

    Services Offered

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

    Website: https://heritagewindowshouston.com/
    Address: 24430 I-45 suite e, Spring, TX 77386
    Phone: (832) 823-5938

    The Woodlands Windows

    The Woodlands, TX
    2.8
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Educational Website
    • Pros icon Price Transparency
    • Pros icon Free assessment

    Services Offered

    • Service icon Metal Frames
    • Service icon Window Replacement/Installation
    • Service icon Energy-Efficient Options
    • Service icon Vinyl Frames

    Website: https://woodlandswindows.com/
    Address: 1095 Evergreen Cir #440, The Woodlands, TX 77380
    Phone: (281) 562-7557

    Glass Doctor of Cypress

    Cypress, TX
    4.9
    ★★★★★
    • Pros icon Price Transparency
    • Pros icon Good Customer Service
    • Pros icon Educational Website

    Services Offered

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

    Website: https://glassdoctor.com/cypress
    Address: 17219 Houston Dr, Cypress, TX 77433
    Phone: (832) 593-9988

    Home Services at The Home Depot

    Spring, TX
    2.7
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Educational Website
    • Pros icon Price Transparency
    • Pros icon Free assessment

    Services Offered

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

    Website: https://www.homedepot.com/l/Spring/TX/Spring/77373/568/services
    Address: 20131 I-45, Spring, TX 77373
    Phone: (281) 747-9897
    The Woodlands Window Cost Calculator

    Calculate how much you can expect to pay for window installation and replacement in The Woodlands, 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 The Woodlands Saves You Money

    Switching to energy-efficient windows can help improve the comfort of your home and help you save on power bills. Here are more ways switching out your windows could help you:

    • Decrease your carbon footprint: In The Woodlands, you can reduce your indirect greenhouse gas emissions by about 465 pounds per year once you install energy-efficient windows.
    • Save on electricity bills: After you switch to energy-efficient windows, you can expect a reduction in your bills by about 12% because you’ll use less energy to heat or cool your home.
    • Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
    • Protect your investment: The older your home is, the more likely it is that switching to energy-efficient windows will benefit you. Older homes usually have windows that are outdated, drafty or potentially even damaged in some way. Updating your windows could help increase the value of your property if you decide to sell.

    Estimated Cost of Window Replacement in The Woodlands

    When researching window installation, each company offers varying services and prices. Let’s take a look at some typical costs and services.

    How Much Do New Windows Cost?

    According to our market research, the average cost to replace a single window is about $600. However, window replacement costs can range from $200 to $1,200 per window. But costs will vary significantly based on the quality of your products, the current condition of your home, the number of windows you need and your location. A lot of window companies also offer door installations and other add-ons like coating, baths, shutters and more. Additional services will increase overall project costs.

    It’s also worth noting that energy-efficient windows will almost always cost more upfront, but Energy Star estimates that upgrading the windows on your The Woodlands home can mean an average energy savings of $236 to $319 per year for single-pane window replacement, or between $87 to $126 per year for double-pane windows. How much you’ll save by installing energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.

    The cost of your window installation will also vary based on the type of material you choose for the frames. Wood windows are typically the most expensive, but it depends on whether they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are more efficient.

    What Services do Window Installers Offer?

    There are typically two kinds of window replacement services: full-frame and pocket installations.

    Full-frame installations are necessary when you want to change the style of your windows or your window has significant rot or deterioration. With this service, your installers will replace the entire window, including the frame, sill and trim. Pocket installations (or retrofits) entail replacing a window within the existing frame, which makes pocket installations take less time and therefore cost less. However, if the frame has any rot or deterioration, you should opt for a full-frame installation instead.

    If you’re still trying to decide which type of installation you need, you can consult with your provider and get their advice. The choice mostly depends on how old the frames are and if there’s any damage present.

    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 The Woodlands

    EcoWatch differs from most reviewers, as we’re examining these companies through a sustainability lens. Along with energy efficiency, we reviewed window companies all across the state and assigned rankings using the following methodology:

    Service Area

    Because this is a guide for The Woodlands, we only included companies that cover the city. There are certainly other reputable providers that didn’t make the cut because they wouldn’t be able to serve homeowners in The Woodlands.

    Work Quality

    When picking new windows, the quality and variety of services can often play just as important of a role in insulation and performance as the brand you get. We do give window installers higher marks if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

    Customer Reviews

    Customer feedback is another very important review factor. If the majority of customers don’t have good feedback about their experience with a certain installer, it won’t be featured on EcoWatch.

    Cost

    This one is a give-and-take: similar to other services, cheap window installation companies are not going to provide the highest quality service. Still, we want to ensure we’re highlighting companies that provide a spectrum of price and financing options so they’re accessible to most homeowners.

    Warranty

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

    Years of Experience

    Last but not least, we like to see companies that have been in the industry for a while. Window installers that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.

    The Woodlands, TX Window Replacement FAQs

    What is the average cost to install windows in a home?

    The national average cost to install a window is about $600 but can range between $200 and $1,200, depending on several factors. The price is usually influenced by the location of your property, the type and material of the window and the size of the window. Also, keep in mind that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.

    Which kind of window should I get?

    A window’s energy efficiency is influenced by several factors, such as the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are usually the most energy-efficient since they are certified by the U.S. Department of Energy.

    What do window installers do?

    Window installation companies will do the entire process — from replacing your old windows with brand-new ones to cleaning up after the windows have been put in place. Additionally, a lot of companies offer window manufacturing, customization and repairs.

    Should I replace all my windows at once?

    If you want to get more efficient windows and save money on your energy bills, replacing all of your windows at the same time is the only way to see a noticeable difference. On the other hand, if you have just a few windows that are damaged or leaky, you can replace just those.

    How long does window installation typically take?

    Since the average installation time is 30 minutes per window, about 16 windows can be installed during a typical 8-hour work day.