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

Are you looking to upgrade your windows? Our list of the best window installation companies can help you narrow down which one to pick.

We analyzed all the top-rated window companies in Cortland 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 Cortland may not seem like the most interesting article on the EcoWatch site, but trust us, windows have a more direct impact on your life than you might realize. Drafty windows could lead to having higher energy bills during the winter or summer months.

That’s also bad news for the environment, as the additional energy used by damaged windows increases your carbon footprint.

Unlike other sites, EcoWatch ranks window companies on energy efficiency while also balancing cost, customer satisfaction and service area.

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 Cortland

The EcoWatch Reviews team evaluated dozens of companies that service the Cortland area to find the top window installation companies by our standards. The companies mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, customer service, price 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 provides windows expertise in Cortland. Window World has about 27 years of experience in the windows industry, and it currently provides services to 200 locations nationwide. Its reputation is backed by several positive reviews on customer review websites.

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

Energy Efficiency of Window World Windows

Window World has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to 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 Cortland?

Prices aren’t displayed on Window World’s website, but it's known for offering some of the most affordable window installations around. If you’d like more accurate information, you can receive 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 provides the best availability in Cortland. Andersen has about 27 years of experience in the windows industry, and it currently provides services to nearly every state except Mississippi and West Virginia. Its reputation is backed by several positive reviews on customer review websites.

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

Energy Efficiency of Renewal by Andersen Windows

Renewal by Andersen has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to 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 Cortland?

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. If you’d like more accurate information, you can receive 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 provides the best warranty in Cortland. Universal has about 20 years of experience in the windows industry, and it currently provides services to 27 states nationwide. Its reputation is backed by several positive reviews on customer review websites.

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

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to 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 Cortland?

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. If you’d like more accurate information, you can receive 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 provides the best residential windows in Cortland. Window Nation has about 16 years of experience in the windows industry, and it currently provides services to residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by several positive reviews on customer review websites.

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

Energy Efficiency of Window Nation Windows

Window Nation has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to 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 Cortland?

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. If you’d like more accurate information, you can receive a quote on the company’s website.

We’ve recommended companies with shining reputations, but note that some national companies have independently owned locations in Cortland, so your service may vary depending on your local crew. We have tried to be unbiased and transparent by mentioning pros and cons for every company reviewed.

More Window Companies in Cortland

Renewal by Andersen of Chicago

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

Services Offered

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

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

Services Offered

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

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

Window Nation

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

Services Offered

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

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

Responsive Roofing, LLC

DeKalb, IL
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Commercial Windows
  • Service icon Residential Windows
  • Service icon Window Install & Replacement

Website: https://www.responsiveroofing.com/
Address: 221 W Lincoln Hwy Unit C, DeKalb, IL 60115
Phone: (815) 901-8860

NextWave Construction Windows, Siding, & Doors

Maple Park, IL
3.4
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Price Transparency

Services Offered

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

Website: http://www.nextwaveil.com/
Address: 5N290 Wooley Rd Unit A, Maple Park, IL 60151
Phone: (630) 454-5689

Mr. Handyman of Naperville

Geneva, IL
4.8
★★★★★
  • 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 Window Repair
  • Service icon Commercial Windows
  • Service icon Window Install & Replacement
  • Service icon Glass Repair

Website: http://www.mrhandyman.com/naperville/
Address: 1871 S Randall Rd STE C, Geneva, IL 60134
Phone: (630) 280-3455

ACE Roofing Contractors & Roof Replacement

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

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

Advanced Windows & Siding, Inc.

Batavia, IL
5
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: http://advancedwindowsandsiding.com/
Address: 309 Oswalt Ave, Batavia, IL 60510
Phone: (630) 231-5390

Great Outlook Glass

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

Services Offered

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

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

Schmidt Exteriors, Inc.

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

Services Offered

  • Service icon Andersen
  • Service icon Aluminum Frames
  • Service icon Custom Window Designs
  • Service icon Marvin
  • Service icon Energy-Efficient Options
  • Service icon Window Install & Replacement
  • Service icon Bay Windows
  • Service icon Vinyl Frames
  • Service icon Pella

Website: http://www.schmidtexteriors.com/
Address: 1585 Beverly Ct # 116, Aurora, IL 60502
Phone: (630) 406-0444

Casco Industries

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

Services Offered

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

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

Chicagoland Window Wizards

St. Charles, IL
3.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

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

Website: http://www.chgowindowwiz.com/
Address: 4n459 School Rd, St. Charles, IL 60175
Phone: (773) 251-1463

WarmDreams Windows & Doors

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

Services Offered

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

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

A & G Glass & Mirror Inc

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

Services Offered

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

Website: http://www.agglass78.com/
Address: 501 W Roosevelt Rd, West Chicago, IL 60185
Phone: (630) 473-4132

Premier Quality Windows & Siding, Inc.

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

Services Offered

  • Service icon Simonton
  • Service icon Wood Frames
  • Service icon Ply Gem
  • Service icon Marvin
  • Service icon Alside
  • Service icon Pella
  • Service icon Window Install & Replacement

Website: http://www.premierqualitywindows.com/
Address: 1981 Wiesbrook Dr AF, Oswego, IL 60543
Phone: (630) 966-1939

Your Window Solutions

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

Services Offered

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

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

Windows, Doors & Siding by Opal Enterprises Naperville

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

Services Offered

  • Service icon Glass Doors
  • Service icon Double-Hung
  • Service icon Energy-Efficient Options
  • Service icon Sliding Glass Doors
  • Service icon Bay Windows
  • Service icon Andersen
  • Service icon Fiberglass Frames
  • Service icon Kolbe
  • Service icon Window Repair
  • Service icon Storm Doors
  • Service icon Window Install & Replacement
  • Service icon Vinyl Frames
  • Service icon Ply Gem

Website: https://www.opalexteriors.com/service-areas/naperville/
Address: 127 Ambassador Dr #159, Naperville, IL 60540
Phone: (630) 538-7568

Cassidy Construction Company

Sugar Grove, IL
2.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Marvin

Website: http://cassidyconstructioncompany.com/
Address: 29 Windwood Dr, Sugar Grove, IL 60554
Phone: (630) 417-0199

Hanover Glass & Mirror

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

Services Offered

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

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

Goverla Windows and Doors

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

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Storm Doors
  • Service icon Sliding Glass Doors
  • Service icon Glass Doors
  • Service icon Energy-Efficient Options
  • 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
Cortland Window Cost Calculator

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

There are several benefits of upgrading to energy-efficient windows. Some reasons you may want to consider making the switch include the following:

  • Decrease your carbon footprint: Reducing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by 449 pounds per year on average.
  • Protect your investment: When your home is on the older side, your windows could also be outdated or leaky. Upgrading and repairing your windows is an important part of maintaining your property and its value.
  • Save money on power bills: The Department of Energy estimates that heat gained or lost via windows makes up about 25-30% of energy use in your home. Switching to energy-efficient windows can help lower that number, which helps you save more on your bills.
  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.

Estimated Cost of Window Replacement in Cortland

Windows come in different shapes and sizes, so costs and services will differ considerably. Here are the typical costs and services that you’ll find from window installation companies.

How Much Do New Windows Cost?

Though the average cost to replace a single window is about $600, it can range from $200 to $1,200. These estimates vary based on specific characteristics of your installation, including size, the location of your home, number of windows, material, type and more.

With windows, efficiency is one of the most important factors for most homeowners. High efficiency windows may cost more off the bat, but by increasing the efficiency of your home — particularly during the summer and winter — they can provide decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Cortland homeowners $298+ per year after replacing single-pane windows.

Another factor that affects the total cost is the material of the frame you select. Aluminum frames are typically the least expensive and are sturdy and relatively maintenance-free, but they offer poor insulation. On the other hand, wood frames cost the most because they are aesthetically pleasing and provide 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 step when planning a replacement is to think about whether you should get a full-frame or pocket installation.

Full-frame installations are usually recommended when you want to change the style of your windows or your window has significant deterioration. With this service, your installers will replace the whole window, including the frame, trim and sill. A pocket installation entails replacing a window within the existing frame, which tends to be cheaper than a full-frame installation.

If you’re unsure which type of window installation service you should get, your installer should be able to help you out. Generally, the decision depends on factors like the age and condition of the home, the type of building material, budget and time restrictions.

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 Cortland

In our hunt to make your home improvements easier and more eco-friendly in Cortland, the EcoWatch team evaluated many companies before deciding on these. Along with energy efficiency, we assessed window companies all across the state and ranked them based on the following methodology:

Service Area

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

Work Quality

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

Customer Reviews

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

Cost

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

Warranty

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

Years of Experience

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

Cortland, IL Window Replacement FAQs

How much should window installation cost?

The typical cost to replace a single window can range between $450 and $650. There are several factors that affect how much it costs, including styles and sizes of windows, the materials used in designing the windows, the number of windows, your property’s location, local labor costs and how energy-efficient the windows are.

What kind of window is the best for energy efficiency?

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

Can I install my own windows?

If you’re handy and have experience with installing a replacement window, it’s possible to install your own windows. But if you don’t have the time or experience, we recommend getting a professional to do it for you.

When is the best time of year to replace windows?

Even though you can install windows any time of year, warmer weather is typically better for replacing windows. In addition, the weather should be dry, because rain can make the installation harder.

Should I replace my windows all at the same time?

If you’re upgrading your windows to get more efficient windows, replacing all the windows together is the only way to see a noticeable difference. However, if you have only a few windows that are damaged or drafty, you can replace just those.

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