20 Best Window Companies in Lenoir, NC (2024 Reviews)

Thinking about upgrading your windows? We’ve got all the information you need in this guide to the top window installation companies.

We analyzed all the top-rated window companies in Lenoir 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 April 21, 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 Lenoir homeowners find eco-conscious solutions for their homes. When it’s the middle of summer, your old and leaky windows could be making your home harder to cool and costing you more in power bills.

Installing energy-efficient windows on your home can help you save money every month on your electric bills — and you can help the environment, too.

So if you’re building a new home, renovating or changing out old windows in Lenoir, this guide is the best place to get started.

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 Lenoir

The EcoWatch Reviews team researched dozens of installers across the country to find the top window installation companies for our readers. The installers mentioned in this article scored best in our review categories, such as energy-efficient offerings, price, local expertise, availability, customer service 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 is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window business for about 27 years. The company has hundreds of positive reviews from customers on online review websites.

It has established itself as a company that 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 caters to eco-conscious consumers by providing 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 Lenoir?

Prices aren’t displayed on Window World’s website, but it's known for offering some of the most affordable window installations around. You can request a free quote on its website for more information about the cost.

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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window business for about 27 years. The company has hundreds of positive reviews from customers on online review websites.

It has established itself as a company that 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 caters to eco-conscious consumers by providing 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 Lenoir?

Prices aren’t displayed on Andersen’s website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can request a free quote on its website for more information about the cost.

Aeroseal Windows logo
FAST QUOTE
as little as 30 seconds
Best for Businesses

Aeroseal Windows

★★★★★
BBB Rating: A+
Locations: Regional
Founded: 1999
Pros:
  • Pros icon Many years of experience
  • Pros icon Great industry reputation
  • Pros icon Low number of customer complaints
  • Pros icon Manufactures products in-house
  • Pros icon Custom Designs
Cons:
  • Pros icon No lifetime warranty
  • Pros icon Not ideal for residential installations

Aeroseal Windows is an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. Aeroseal has been in the window business for about 23 years. The company has hundreds of positive reviews from customers on online review websites.

It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.

Energy Efficiency of Aeroseal Windows Windows

Aeroseal Windows caters to eco-conscious consumers by providing energy-efficient window offerings. The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more.

How much does Aeroseal Windows cost in Lenoir?

Prices aren’t displayed on Aeroseal’s website, but it provides high-quality windows at a competitive price point. You can request a free quote on its website for more information about the cost.

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 is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has been in the window business for about 20 years. The company has hundreds of positive reviews from customers on online review websites.

It has established itself as a company that has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct caters to eco-conscious consumers by providing 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 Lenoir?

Prices aren’t displayed on Universal’s 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. You can request a free quote on its website for more information about the cost.

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 is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has been in the window business for about 16 years. The company has hundreds of positive reviews from customers on online review websites.

It has established itself as a company that 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 caters to eco-conscious consumers by providing 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 Lenoir?

Prices aren’t displayed on Window Nation’s 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. You can request a free quote on its website for more information about the cost.

We aim to remain unbiased and transparent by listing pros and cons for each company. Additionally, any partnerships do not affect our reviews.

More Window Companies in Lenoir

Renewal by Andersen Window Replacement

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

Services Offered

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

Website: https://charlottereplacementwindows.com/
Address: 4749 West Blvd, Charlotte, NC 28208
Phone: (704) 251-2642

Champion Replacement Windows of Charlotte

Charlotte, NC
4.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.championwindow.com/Charlotte/
Address: 9100 Perimeter Woods Dr, Charlotte, NC 28216
Phone: (704) 322-3247

Champion Replacement Windows of Johnson City

Johnson City, TN
4.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

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

Website: https://www.championwindow.com/Johnson-City/
Address: 3105 Hanover Rd, Johnson City, TN 37604
Phone: (423) 218-4374

Window World Catawba Valley

Hickory, NC
4.3
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.windowworldcatawbavalley.com/
Address: 950 Tate Blvd SE Suite 105, Hickory, NC 28602
Phone: (828) 324-0307

Window Nation

Charlotte, NC
4.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.windownation.com/window-replacement-charlotte/
Address: 5900 Northwoods Business Pkwy suite m, Charlotte, NC 28269
Phone: (704) 816-1720

Riley's Replacement Windows LLC.

Hickory, NC
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: http://rileysreplacementwindows.com/
Address: 2565 Section House Rd NE, Hickory, NC 28601
Phone: (828) 446-7707

Atlas Construction & Roofing

Granite Falls, NC
2.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Timely Service

Services Offered

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

Website: https://atlasconstructionclaims.com/
Address: 5669 Silver Bell Ln, Granite Falls, NC 28630
Phone: (828) 544-1110

Pella Windows & Doors of Boone

Boone, NC
4.5
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.pellabranch.com/north-carolina/showrooms/boone/
Address: 665 E King St, Boone, NC 28607
Phone: (828) 265-8525

Glass Works of Hickory Inc

Hickory, NC
3.5
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: http://glassworksofhickory.com/
Address: 881 Highland Ave NE, Hickory, NC 28601
Phone: (828) 322-2122

Ross Windows

Morganton, NC
2.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

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

Website: https://www.rosswindowsnsiding.com/
Address: 800 E Union St, Morganton, NC 28655
Phone: (828) 437-4848

APPGLASS Boone

Boone, NC
4.3
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.appglassboone.com/
Address: 1765 Old US 421 S, Boone, NC 28607
Phone: (828) 504-0605

McDowell Glass & Mirror, Inc.

Marion, NC
4.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

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

Website: http://www.mcdowellglass.com/
Address: 4805 US-70, Marion, NC 28752
Phone: (828) 724-9999

My Windows and Doors LLC

Sherrills Ford, NC
4.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

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

Website: https://mywindowsanddoorsllc.com/
Address: 6367 NC-150, Sherrills Ford, NC 28673
Phone: (704) 249-2232

Windows Doors & Misc. Warehouse, LLC

Statesville, NC
4.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.wdmwarehouse.com/
Address: 1624 Northside Dr, Statesville, NC 28625
Phone: (704) 872-6277

Forever Windows

Statesville, NC
4.6
★★★★★
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Custom Window Designs
  • Service icon Storm/Impact Windows
  • Service icon Double-Hung
  • Service icon Bay Windows

Website: https://www.foreverwindows.com/
Address: 1120 Barkley Rd N, Statesville, NC 28677
Phone: (980) 434-5347

Statesville Glass & Shower Door

Statesville, NC
4.4
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

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

Website: https://statesvilleglass.com/
Address: 1539 Shelton Ave, Statesville, NC 28677
Phone: (704) 873-3523

Energy Masters Direct LLC

Mooresville, NC
4.4
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

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

Website: http://www.energymastersdirect.com/
Address: 2692 Charlotte Hwy, Mooresville, NC 28117
Phone: (980) 444-0035

Big John's Closeouts

Elizabethton, TN
4.5
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

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

Website: http://www.bigjohnscloseouts.com/
Address: 238 E Elk Ave, Elizabethton, TN 37643
Phone: (423) 542-3117

Legacy

Charlotte, NC
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.chooselegacy.com/
Address: 9013 Perimeter Woods Dr Suite E, Charlotte, NC 28216
Phone: (980) 372-5580

World of Windows of The Carolinas

Charlotte, NC
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.windowscharlotte.com/
Address: 9100 A, Perimeter Woods Dr, Charlotte, NC 28216
Phone: (704) 921-9898
Lenoir Window Cost Calculator

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

There are several perks of switching to energy-efficient windows. A few reasons you may want to consider making the change are the following:

  • Protect your investment: If you have an older home, your windows are most likely in need of replacement. Updating your windows can make your home more comfortable and also help increase the value of your property if you decide to sell.
  • Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
  • Save on power bills: Switching to energy-efficient windows lowers your energy bills by about 12% since you use less energy.
  • Reduce your carbon footprint: Reducing the amount of energy you use also lowers your carbon emissions. You could reduce it by about 345 pounds.

Estimated Cost of Window Replacement in Lenoir

Windows come in varying styles, purposes and shapes, so costs and services will differ greatly depending on several factors. Below, we describe the typical cost and services that you’ll find from window replacement companies.

How Much Do New Windows Cost?

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

It’s important to keep in mind that windows with the best efficiency may cost more upfront but can save you hundreds of dollars by decreasing your energy bills. Investing in certified energy-efficient windows can save Lenoir homeowners $310+ a year when replacing single-pane windows.

How much your window installation costs will also vary depending on the type of window material you choose for the frames. Wood windows are generally the most expensive, but it depends on whether they are completely wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are shown to be more efficient.

What Services do Window Installers Offer?

The first step of an installation is to figure out whether you need a full-frame or pocket installation.

A full-frame installation replaces the full window, including the sill, frame, trim and the window panes. Because this kind of installation requires more time and labor, it will be more expensive than a pocket installation. Pocket installations (also known as retrofits) are when you replace a window while leaving the old frame. Pocket installations are on the simpler end and will be less expensive, but you can’t do this type of installment if you have any pre-existing rot or water damage.

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

EcoWatch reviews are different from other reviews because we assess these companies through a sustainability lens. We’ve reviewed the top window installation companies in Lenoir primarily based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. Energy Star certified windows can lower power bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

Since this is a guide for Lenoir, we only included companies that provide services to the city. There are other reputable providers that didn’t make the list because of the low odds that they would serve the average homeowner in Lenoir.

Work Quality

When selecting new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the brand of window you get. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

Customer Reviews

We analyzed trends in recent online reviews to find the companies with the highest rates of customer satisfaction. Customer satisfaction might be the most important factor, as it reflects the quality of services across nearly every category, including quality of parts, cost, quality of installation, warranty, professionalism and more.

Cost

Cheaper windows don’t necessarily mean better windows, but we know many of our readers try to keep costs low when possible. When analyzing providers’ prices, we awarded higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.

Warranty

Protecting your investment in new windows is important. That’s why window installation companies that have lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

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

Lenoir, NC Window Replacement FAQs

How much does a window install cost?

The typical cost of installing one window ranges from $450 to $650. There are several factors that influence the price, such as your property’s location, how energy-efficient the windows are, local labor costs, the number of windows, the materials used in designing the windows and styles and sizes of windows.

What kind of window is the most energy-efficient?

A window’s energy efficiency depends on a number of factors, including 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.

Do you really need to use a window installation company?

You should hire a window installation professional whenever you want to replace your windows. Installing windows is a involved process that can be difficult to do on your own, so it’s best left to the professionals.

When is it time to replace your windows?

Windows usually last about 20 to 30 years, but anytime you notice damage on your windows, it’s a good idea to have them checked by an expert to determine if they are in need of a repair or replacement.

How long does window installation typically take?

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