20 Best Window Companies in Dundee, IL (2024 Reviews)

Looking to improve your home’s look? The best window replacement companies can help.

We analyzed all the top-rated window companies in Dundee 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.

A review of the top window installation companies in Dundee may not seem like the most riveting article on the EcoWatch site, but trust us, windows impact your life more than you might realize. During the winter months, the last thing you want is your heat to leak out of your drafty windows.

Replacement windows improve the insulation in your home, not only making you more comfortable during extreme temperatures, but also saving you some money and helping the environment.

So if you’re constructing a new home, renovating or changing out old windows in Dundee, you’ve found 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

Best Energy-Efficient Features

Champion

★★★★★
4.5

  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty

Window Veteran

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Wide variety of products and services
  • Lifetime Warranty

Best Window Installation & Replacement Companies in Dundee

The EcoWatch Reviews team assessed dozens of installers in Dundee to find the best window installation companies for our readers. The companies in this article passed our review standards for energy-efficient offerings as well as customer service, price, local expertise and beyond.

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 Dundee. This company has 27 years of experience in the windows business, and it has proved to be one of the most respected companies in the business. Its reputation is backed by many positive 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

Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World’s windows are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.

How much does Window World cost in Dundee?

Prices aren’t mentioned on Window World’s website, but it's known for offering some of the most affordable window installations around. If you’d like to know for sure, you can get a quote on the company’s website.

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 Dundee. This company has 27 years of experience in the windows business, and it has proved to be one of the most respected companies in the business. Its reputation is backed by many positive 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

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. Not all of Andersen’s windows are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Dundee?

Prices aren’t mentioned 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. If you’d like to know for sure, you can get a quote on the company’s website.

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 Dundee. This company has 20 years of experience in the windows business, and it has proved to be one of the most respected companies in the business. Its reputation is backed by many positive reviews from customers online.

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

Energy Efficiency of Universal Windows Direct Windows

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. Not all of Universal’s windows are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.

How much does Universal Windows Direct cost in Dundee?

Prices aren’t mentioned 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. If you’d like to know for sure, you can get a quote on the company’s website.

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 Dundee. This company has 16 years of experience in the windows business, and it has proved to be one of the most respected companies in the business. Its reputation is backed by many positive 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

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. Not all of Window Nation’s windows are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.

How much does Window Nation cost in Dundee?

Prices aren’t mentioned 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. If you’d like to know for sure, you can get a quote on the company’s website.

One thing to note is that the following companies are national, which means the quality of customer service may depend on your local team. We have tried to stay unbiased and transparent by describing pros and cons for every provider.

More Window Companies in Dundee

Renewal by Andersen of Chicago

Glenview, IL
4.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Double-Hung
  • Service icon Commercial Windows
  • Service icon Andersen
  • Service icon Sliding Glass Doors
  • Service icon Window Install & Replacement
  • Service icon Skylights
  • Service icon Bay Windows
  • Service icon Custom Window Designs

Website: https://www.renewalbyandersen.com/window-company/080-chicago-il/about-us
Address: 2300 Ridge Dr, Glenview, IL 60025
Phone: (847) 486-5680

Window World Western Chicago

Lisle, IL
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Sliding Glass Doors
  • Service icon Double-Hung
  • Service icon Window Install & Replacement
  • Service icon Bay Windows

Website: https://www.windowworldwesternchicago.com/
Address: 4646 Western Ave, Lisle, IL 60532
Phone: (331) 903-6873

WarmDreams Windows & Doors

East Dundee, IL
5
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Fiberglass Frames
  • Service icon Energy-Efficient Options
  • Service icon Sliding Glass Doors
  • Service icon Window Repair

Website: https://warmdreams.us/
Address: 206 Christina Dr, East Dundee, IL 60118
Phone: (312) 414-9298

Your Window Solutions

Lake in the Hills, IL
5
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Storm Doors
  • Service icon Sliding Glass Doors
  • Service icon Bay Windows
  • Service icon Window Install & Replacement

Website: https://4yourwindowsolutions.com/
Address: 8411 Pyott Rd #111, Lake in the Hills, IL 60156
Phone: (833) 367-9687

Goverla Windows and Doors

Fox River Grove, IL
5
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Storm Doors
  • Service icon Glass Doors
  • Service icon Energy-Efficient Options
  • Service icon Sliding Glass Doors
  • Service icon Bay Windows
  • Service icon Fiberglass Frames
  • Service icon Vinyl Frames

Website: https://www.goverlausa.com/
Address: 601 Hunters Way, Fox River Grove, IL 60021
Phone: (847) 630-6444

Great Outlook Glass

Dundee Township, IL
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Commercial Windows
  • Service icon Glass Repair
  • Service icon Window Repair
  • Service icon Mirrors
  • Service icon Glass Showers

Website: http://greatoutlookglass.com/
Address: 35W113 Frontenac Dr, Dundee Township, IL 60118
Phone: (224) 409-4421

Royalty Windows

Barrington, IL
4.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Andersen
  • Service icon Marvin
  • Service icon Vinyl Frames

Website: http://royaltywindows.com/
Address: 135 Park Avenue, Suite #200F, Barrington, IL 60010
Phone: (773) 974-4362

Casco Industries

South Elgin, IL
4.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Fiberglass Frames
  • Service icon Velux
  • Service icon Window Install & Replacement
  • Service icon Aluminum Frames
  • Service icon Wood Frames
  • Service icon Skylights
  • Service icon Sliding Glass Doors
  • Service icon Vinyl Frames
  • Service icon Storm Windows
  • Service icon Commercial Windows

Website: http://www.cascoonline.com/
Address: 540 Division St, South Elgin, IL 60177
Phone: (847) 741-9595

Hanover Glass & Mirror

Hanover Park, IL
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Commercial Windows
  • Service icon Glass Doors
  • Service icon Custom Glass
  • Service icon Mirrors
  • Service icon Glass Showers
  • Service icon Window Repair
  • Service icon Window Install & Replacement

Website: http://hanover-glass.com/
Address: 7221 Olde Salem Cir, Hanover Park, IL 60133
Phone: (630) 289-6767

Window Concepts

South Barrington, IL
4.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Commercial Windows
  • Service icon Bay Windows
  • Service icon Residential Windows
  • Service icon Window Install & Replacement
  • Service icon Energy-Efficient Options

Website: http://www.window-concepts.com/
Address: 33 W Higgins Rd #905, South Barrington, IL 60010
Phone: (847) 621-2680

Chicago Windows Solutions

Schaumburg, IL
5
★★★★★
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Doors
  • Service icon Vinyl Frames
  • Service icon Window Install & Replacement
  • Service icon Sliding Glass Doors
  • Service icon Bay Windows
  • Service icon Aluminum Frames
  • Service icon Fiberglass Frames

Website: https://www.chicagowindowssolutions.com/
Address: 1421 Wright Blvd, Schaumburg, IL 60193
Phone: (773) 754-5645

RemodelGo Windows & Doors

Palatine, IL
5
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Sliding Glass Doors
  • Service icon Bay Windows
  • Service icon Window Repair
  • Service icon Window Install & Replacement
  • Service icon Glass Repair
  • Service icon Energy-Efficient Options
  • Service icon Glass Doors

Website: https://www.remodelgo.com/
Address: 247 N Eric Dr, Palatine, IL 60067
Phone: (847) 922-2134

Argo Glass & Windows - Window Repair & Glass Replacement

Palatine, IL
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Repair
  • Service icon Screen Repair
  • Service icon Aluminum Frames
  • Service icon Glass Doors
  • Service icon Storm Windows
  • Service icon Commercial Windows
  • Service icon Window Repair
  • Service icon Wood Frames
  • Service icon Vinyl Frames
  • Service icon Window Install & Replacement
  • Service icon Sliding Glass Doors
  • Service icon Tempered Glass

Website: https://argowindowrepair.com/illinois/window-repair-palatine
Address: 317 W Colfax St, Palatine, IL 60067
Phone: (847) 696-8044

ACE Roofing Contractors & Roof Replacement

St. Charles, IL
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Repair
  • Service icon Window Install & Replacement

Website: http://www.ace-roofs.com/
Address: 8 N 3rd St Suite #3, St. Charles, IL 60174
Phone: (630) 444-7575

Rooftop Designs

Schaumburg, IL
4.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Timely Service

Services Offered

  • Service icon Bay Windows
  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Window Install & Replacement

Website: https://www.rooftopdesigns.net/
Address: 951 N Plum Grove Rd STE E, Schaumburg, IL 60173
Phone: (855) 662-7388

Pro Home 1

Schaumburg, IL
4.4
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Timely Service

Services Offered

  • Service icon Bay Windows
  • Service icon Pella
  • Service icon Skylights
  • Service icon Window Install & Replacement
  • Service icon Window Repair
  • Service icon Commercial Windows
  • Service icon Andersen
  • Service icon Wood Frames

Website: https://www.prohome1.com/
Address: 638 Pratt Ave N, Schaumburg, IL 60193
Phone: (630) 448-8499

LeWalt Glass & Mirror

Crystal Lake, IL
3.4
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Window Install & Replacement
  • Service icon Glass Repair
  • Service icon Tempered Glass
  • Service icon Custom Glass
  • Service icon Window Repair
  • Service icon Commercial Windows

Website: http://www.lewaltglass.com/
Address: 6521 Commercial Rd, Crystal Lake, IL 60014
Phone: (815) 459-5252

Woodland Windows & Doors - Showroom

Roselle, IL
4.4
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Skylights
  • Service icon Vinyl Frames
  • Service icon Pella
  • Service icon Bay Windows
  • Service icon Andersen
  • Service icon Commercial Windows
  • Service icon Velux
  • Service icon Sliding Glass Doors
  • Service icon Window Install & Replacement
  • Service icon Aluminum Frames
  • Service icon Marvin
  • Service icon Fiberglass Frames

Website: https://woodlandwindows.com/
Address: 25W355 Lake St, Roselle, IL 60172
Phone: (630) 869-1450

HP Windows And Doors

Barrington, IL
3.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Sliding Glass Doors
  • Service icon Window Install & Replacement
  • Service icon Pella
  • Service icon Glass Doors

Website: https://www.hpwindowsanddoors.com/
Address: 148 W Station St, Barrington, IL 60010
Phone: (847) 748-2544

Barrington Promar Window Replacement

Barrington, IL
3.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Install & Replacement
  • Service icon Commercial Windows
  • Service icon Sliding Glass Doors

Website: http://www.barringtonpromarwindowreplacement.com/
Address: 542 W Northwest Hwy, Barrington, IL 60010
Phone: (847) 720-9334
Dundee Window Cost Calculator

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

Upgrading to energy-efficient windows can help improve the comfort of your home and help you save on electricity bills. Here are more details about how upgrading your windows could benefit you:

  • Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its value, especially if you have an older home.
  • Reduce your carbon footprint: In Dundee, you can reduce your indirect greenhouse gas emissions by about 449 pounds per year after you switch to energy-efficient windows.
  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
  • Save on energy bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of household energy use. Switching to energy-efficient models can help reduce how much energy is used in your home, therefore saving you about 12% more on your bills.

Estimated Cost of Window Replacement in Dundee

Windows come in varying purposes, shapes and styles, so costs and services will differ tremendously depending on your project. Below, we describe the average cost and services that you can get from window replacement companies.

How Much Do New Windows Cost?

On average, homeowners in Dundee can anticipate that most replacement window installations will cost between $250 and $1,200, with the most common installations sitting at around $600. These amounts vary based on the specifics of your installation, such as the location of your home, material, type, number of windows, size and more.

It’s also worth bearing in mind that energy-efficient windows will almost always cost more initially, but Energy Star predicts that switching out the windows on your Dundee home can mean an average energy savings of $236 to $319 a 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 depends on your local climate, energy rates and other factors unique to your home.

Another factor that affects the overall cost is the material you select for your frame. Aluminum frames are generally the least expensive and are sturdy and light, but they offer poor insulation. On the other hand, wood frames are the most expensive, as they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.

What Services do Window Installers Offer?

The first thing to ask yourself when getting new windows is: Do you want a full-frame installation or a pocket installation?

A full-frame installation is a total window replacement. This service involves removing the old window, the sill, and the exterior and interior trim. It also involves extra materials, such as insulation and drip edges, which increase the overall cost of the project. It’s also worth noting that you may have to touch up the paint around the window after a full-frame installation. Pocket installations are on the simpler end and won’t cost as much because they involve merely 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 installation company can recommend the best type for your project. In Dundee, the choice will mostly depend on how much damage there is currently and the condition of your existing frames.

Best Availability

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house

Best Energy-Efficient Features

Champion

★★★★★
4.5

  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty

Window Veteran

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Wide variety of products and services
  • Lifetime Warranty

How We Choose the Best Window Installers in Dundee

The EcoWatch Reviews team is different from other reviewers since we assess these companies through a sustainability lens. We’ve evaluated the top window replacement companies in Dundee mostly based on energy efficiency, as it’s what’s best for the environment and for you as a homeowner. Energy Star certified windows have been shown to lower energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

This one is pretty self-explanatory, but we’ve chosen to highlight window installation companies that serve a wide variety of states and cities so you can find the best window installation company near you.

Work Quality

We’re certain that you’re looking for professionals who do a great job installing windows. We’ve vetted each installer featured on this list to make sure its contractors are well-qualified and that the company has received a lot of positive customer feedback to vouch for its service.

Customer Reviews

We analyzed trends in recent customer feedback to determine the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction may be the factor we place the most value on, as it reflects the quality of services across nearly every category, including quality of installation, quality of parts, warranty, cost, professionalism and more.

Cost

Cheaper windows certainly don’t mean better windows, but we know many of our readers want 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 to many homeowners. That’s why window installation companies that offer 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 a good track record in the industry. Window installers that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.

Dundee, IL Window Replacement FAQs

How much should window installation cost?

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

What kind of window is the most energy-efficient?

Generally, double-pane windows are more efficient than single-pane windows and windows that do not open are more efficient than windows that do. If you want to be sure you’ll get the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — they’re certified energy-efficient by the U.S. Department of Energy.

What services do window replacement companies do?

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

How often do you need to replace your windows?

Windows usually have a lifespan of about 20 to 30 years, but anytime you see damage on your windows, it’s a good idea to have an expert take a look at them to determine if they need any repairs or replacements.

How long does window installation typically take?

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

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