20 Best Window Companies in Clarendon Hills, IL (2023 Reviews)

When the time comes to upgrade your windows, our reviews of the best window installation companies can help you find the right provider for you.

We analyzed all the top-rated window companies in Clarendon Hills 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 September 15, 2023

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 team is all about finding solutions for eco-conscious homeowners in Clarendon Hills. 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 and your family more comfortable during extreme temperatures, but also saving you some money and helping the environment.

We've compiled a guide on the top installation companies to help you in your research, so you can not only enjoy brand new windows, but also save money on your power bills.

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 Clarendon Hills

The EcoWatch team evaluated dozens of companies that serve the Clarendon Hills area to find the best window installation companies by our standards. The installers we've included in this article scored best in our categories, including energy-efficient offerings, price, customer service, availability 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. This window installation company has been operating since 1995 and currently provides services to 200 locations nationwide.

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

There are a wide variety of window types available from Window World, some of which are Energy Star products. 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 Clarendon Hills?

While pricing information is not available on Window World’s website, it's known for offering some of the most affordable window installations around. The best way to get more accurate information is to ask for a free 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 offers the best availability in Clarendon Hills. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This provider has 27 years of experience in the window installation business, and it has established itself as one of the most reputable companies in Clarendon Hills. The provider has many glowing reviews from customers on online review websites.

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 company for you.

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 Clarendon Hills?

Even though prices are not readily available on Andersen’s website, 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 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 is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This window installation company has been in business since 2002 and currently provides services to 27 states nationwide. The company has a lot of glowing reviews from customers on online review websites.

You may want to consider choosing Universal if you're interested in 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 appeals 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 Clarendon Hills?

Universal does not list 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. You can ask for 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 offers the best residential windows in Clarendon Hills. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This provider has 16 years of experience in the window installation business, and it has established itself as one of the most reputable companies in Clarendon Hills. The provider has many glowing reviews from customers on online review websites.

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 company for you.

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 Clarendon Hills?

Even though prices are not readily available on Window Nation’s website, 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 information.

We try to stay unbiased and transparent by mentioning pros and cons for each company we review. Additionally, our rankings are not affected by any partnerships.

More Window Companies in Clarendon Hills

Renewal by Andersen of Chicago

Lockport, IL
4.5
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Stained Glass
  • Service icon Full-Service Installations
  • Service icon Glass Showers
  • Service icon Commercial Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Residential Windows

Website: https://www.renewalbyandersen.com/window-company/080-chicago-il/about-us
Address: 14503 S Gougar Rd #800, Lockport, IL 60491
Phone: (866) 836-2764

Window World Western Chicago

Lisle, IL
4.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Double-Hung
  • Service icon Window Replacement
  • Service icon Sliding Glass
  • Service icon Bay Windows

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

Window Nation

Romeoville, IL
4.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Residential Windows
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Bay Windows
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung
  • Service icon Window Replacement

Website: https://www.windownation.com/chicago_showroom/
Address: 1263 Lakeview Dr, Romeoville, IL 60446
Phone: (815) 306-8024

Rusco Windows & Doors

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

Services Offered

  • Service icon Residential Windows
  • Service icon Bay Windows
  • Service icon Commercial Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Stained Glass
  • Service icon Aluminum Window Frames
  • Service icon Fast Delivery
  • Service icon Sliding Glass

Website: https://www.rusco-windows.com/
Address: 1740 Internationale Pkwy, Woodridge, IL 60517
Phone: (630) 796-4624

Window Repair & Glass Replacement

Lisle, IL
4.4
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Tempered Glass
  • Service icon Double-Hung
  • Service icon Window Repair
  • Service icon Aluminum Window Frames
  • Service icon Sliding Glass
  • Service icon Custom Window Designs

Website: https://argowindowrepair.com/illinois/window-repair-naperville
Address: 1025 Ogden Ave #202, Lisle, IL 60532
Phone: (630) 580-1437

SmardBuild Construction

Addison, IL
4.4
★★★★★
  • 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 Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Window Replacement
  • Service icon Aluminum Window Frames
  • Service icon Fast Delivery

Website: https://www.smardbuild.com/
Address: 924 S Westwood Ave, Addison, IL 60101
Phone: (630) 237-4205

Pegasus windows Inc.

Westchester, IL
4.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Fast Delivery
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Window Replacement
  • Service icon Residential Windows

Website: http://www.pegasusinchicago.com/
Address: 1359 Newcastle Ave, Westchester, IL 60154
Phone: (708) 639-5217

Best Windows Inc

La Grange Park, IL
4.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Residential Windows
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Window Replacement

Website: http://bestwindows.net/
Address: 1112 Cleveland Ave, La Grange Park, IL 60526
Phone: (708) 204-2446

Ultimate Home Solutions

Glen Ellyn, IL
4.3
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Window Replacement
  • Service icon Double-Hung

Website: https://www.ultimatehomesolutions.net/
Address: 466 Roosevelt Rd, Glen Ellyn, IL 60137
Phone: (630) 757-8694

Next Door & Window

Burr Ridge, IL
4.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Stained Glass
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Window Replacement

Website: https://www.nextdoorandwindow.com/
Address: 16W240 83rd St, Burr Ridge, IL 60527
Phone: (630) 323-6398

Next Door and Window

Naperville, IL
4.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Window Designs
  • Service icon Window Replacement
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung

Website: https://www.nextdoorandwindow.com/
Address: 815 E Ogden Ave, Naperville, IL 60563
Phone: (630) 355-0277

Erie Home

Lombard, IL
4.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement
  • Service icon Fast Delivery
  • Service icon Sliding Glass
  • Service icon Commercial Windows
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Double-Hung

Website: https://www.eriehome.com/location/chicago/
Address: 414 Eisenhower Ln N North, Lombard, IL 60148
Phone: (630) 228-9210

Durabuilt Home Improvements, Inc.

Elmhurst, IL
4.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Glass Showers

Website: https://www.durabuilthi.com/
Address: 747 Church Rd Suite C2, Elmhurst, IL 60126
Phone: (630) 941-1800

Royal Craft Home Remodelers Inc.

Downers Grove, IL
4.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement
  • Service icon Fast Delivery
  • Service icon Residential Windows
  • Service icon Custom Window Designs

Website: https://royalcraftremodelers.com/
Address: 1525 Ogden Ave, Downers Grove, IL 60515
Phone: (630) 725-1000

Valdicass Inc.

Brookfield, IL
4.2
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs

Website: https://www.valdicass.com/
Address: 8920 47th St, Brookfield, IL 60513
Phone: (708) 255-5231

Dilworth Windows & Doors Inc.

Westmont, IL
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Sliding Glass

Website: https://www.dilworthwindows.com/
Address: 223 N Cass Ave, Westmont, IL 60559
Phone: (630) 960-4300

Odyssey Home Remodeling

Naperville, IL
4.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Glass Showers
  • Service icon Custom Window Designs

Website: https://odysseyremodeling.com/
Address: 105 Jackson Ave #1, Naperville, IL 60540
Phone: (855) 913-3770

Pella Window and Door Showroom of Naperville, IL

Naperville, IL
4.1
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement
  • Service icon Fast Delivery
  • Service icon Commercial Windows
  • Service icon Stained Glass
  • Service icon Double-Hung
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Bay Windows

Website: https://www.pella.com/locations/il/naperville/
Address: 115 E Ogden Ave, Naperville, IL 60563
Phone: (630) 571-6404

Gilkey Window Company - Chicago Ridge

Chicago Ridge, IL
4.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Fast Delivery
  • Service icon Commercial Windows
  • Service icon Custom Window Designs
  • Service icon Residential Windows

Website: https://www.gilkey.com/location/chicago-ridge-il/
Address: 10160 Virginia Ave, Chicago Ridge, IL 60415
Phone: (708) 229-2340

Valley Windows & Remodeling

Glen Ellyn, IL
4.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Sliding Glass
  • Service icon Window Replacement
  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Custom Window Designs

Website: http://www.valleywindowandremodeling.com/
Address: 22W354 Balsam Dr, Glen Ellyn, IL 60137
Phone: (630) 788-2068
Clarendon Hills Window Cost Calculator

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

There are quite a few perks of upgrading to energy-efficient windows. A few reasons you may want to consider making the change include the following:

  • Better temperature control in your home: Living in a very cold place like Clarendon Hills usually means depending on your heater to keep your house cool. Energy-efficient windows can reduce how hard your heating system needs to work to heat your home.
  • Protect your investment: When you have an older home, your windows could also be outdated or drafty. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
  • Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
  • Save money on power bills: Installing energy-efficient windows lowers your energy bills by about 12% because you use less energy.

Estimated Cost of Window Replacement in Clarendon Hills

Windows come in various shapes and sizes, so costs and services will vary tremendously. Here are the typical costs and services that you can find from the average window installation company.

How Much Do New Windows Cost?

Though the average of installing one window is around $600, it can range anywhere from $200 to $1,200. Costs will vary considerably based on the quality of your products, your location, the number of windows you need and the current condition of your home. A lot of window companies also offer replacement door installations and other add-ons like coating, shutters, baths 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 lowering your energy bills. Investing in certified energy-efficient windows can save Clarendon Hills homeowners $300+ a year when replacing single-pane windows.

Getting free quotes from several installers is the best way to find out which one is right for you.

What Services do Window Installers Offer?

The first step when planning a replacement is to figure out whether you need a full-frame or pocket installation.

Full-frame installations require replacing the whole window — the sill, frame, trim and all. These are typically done when you want to change the style of your window or when it has a great amount of deterioration. Full-frame installations are more time-consuming and will increase overall costs. A pocket installation involves replacing a window without replacing the frame. So, instead of taking out the whole unit and rebuilding it, the window installer will just put the replacement window (also called a retrofit or insert window) into the frame.

Your window installation company can recommend the best type for your project. In Clarendon Hills, the decision will mostly depend on the efficiency of your home and how old your existing frames are.

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 Clarendon Hills

EcoWatch reviews are different from other reviews, as we examine these companies through a sustainability lens. We've evaluated the top window replacement companies in Clarendon Hills mostly based on energy efficiency, as it's what's best for the environment and for you as a homeowner. Energy-efficient windows have been shown to reduce your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

This one is self-explanatory, but we've chosen to highlight window installation companies that serve the Clarendon Hills area so you can find the right window installation company near you.

Work Quality

When picking new windows, the quality and range of services can often play just as important of a role in overall efficiency and performance as the brand you opt for. We do give window installers more points if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

Customer Reviews

Another self-explanatory yet very important review factor is customer feedback. If most customers don't have positive feedback about their service from a certain window installation company, it won't be featured on EcoWatch.

Cost

This one is a give-and-take: similar to other services, cheap window installers won't always provide the highest quality service. On the other hand, we want to ensure we're highlighting companies that provide a variety of price and financing options so they're accessible to most homeowners.

Warranty

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

Years of Experience

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

Clarendon Hills, IL Window Replacement FAQs

What is the typical cost to replace windows?

The average cost of installing a single window can range between $450 and $650. There are a variety of factors that influence how much it costs, such as styles and sizes of windows, how energy-efficient the windows are, local labor costs, the materials used in designing the windows, your property's location and the number of windows.

Which kind of window is the best?

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

Can I install my own windows?

While it is possible to install your own windows, doing so requires a lot of time and experience with home improvement projects. Hiring a professional can help guarantee that the job is done properly and that you won't have to spend the time and effort to do it yourself.

When is it time to replace your windows?

Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, then they should probably be replaced. Other than that, if your windows have any damage on them, or they have become difficult to open or close, they may be in need of replacement.

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