25 Best Window Replacement Companies in Sullivan, IL (2023 Reviews)
Window Companies Near Me

Looking to upgrade your home's windows? We've got you covered in this list of the top window installation companies.

We analyzed all the top window installers in Sullivan and selected the top 25 based on:

  • Customer reviews
  • Window replacement expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated May 04, 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.

A review of the top window replacement companies in Sullivan may not seem like the most riveting article on the EcoWatch site, but trust us, windows impact your life more than you might think. Drafty or leaky windows can decrease your home's energy efficiency by up to 30%, according to the Department of Energy. In Sullivan, that's around $311 per year that you could save on your energy bills after making the switch.

Thankfully, saving you money with efficient windows also aligns with our goals of reducing energy usage for the environment.

As windows are so important for your home, selecting the best company for you is a big decision to make. That's why the EcoWatch team has created this list of the top window installation companies, so you can more easily make an informed decision.

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • Low prices relative to competitors
  • Great industry reputation
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Manufactures products in-house
  • Member of US Green Building Council
  • Award-winning company
  • No lifetime warranty

Best for Residential Windows

Window Nation

★★★★★
4

  • Award-winning company
  • Manufactures products in-house
  • Wide variety of products and services
  • Limited service area

Best Window Replacement Companies in Sullivan

The EcoWatch team assessed dozens of window providers across Sullivan to narrow our list down to the top ones. The providers in this article passed our review standards for energy-efficient offerings as well as price, customer service, 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 Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
Cons:
  • Pros icon Quality of service will depend on your area

Window World has windows expertise in Sullivan. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has around 27 years of industry experience, and it currently provides services to 200 locations nationwide. The company has many glowing reviews from customers online.

Window World may be the company for you if you want one 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's commitment to sustainability shows in its 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 Sullivan?

Pricing information is not available on Window World's website, as the cost of window installment depends on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. You can inquire about a free quote on its website for more information about pricing.

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 Manufactures products in-house
  • Pros icon Member of US Green Building Council
  • Pros icon Award-winning company
Cons:
  • Pros icon No lifetime warranty

Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window replacement sector. Its reputation is backed by a considerable amount of positive reviews from customers online.

Andersen may be the company for you if you're interested in one 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 Sullivan?

Andersen does not detail prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Getting a free quote on its website is the best way to get more accurate pricing information.

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 Wide variety of products and services
Cons:
  • Pros icon Limited service area

Window Nation offers the best residential windows in Sullivan. This window installation company has been operating since 2006 and currently provides services to residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by all the positive reviews from customers online.

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

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 make sure you mention that you want Energy Star windows when inquiring.

How much does Window Nation cost in Sullivan?

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. For more detailed information on the cost, you can inquire about a quote from the company.

Universal Windows Direct logo
FAST QUOTE
as little as 30 seconds
Best Warranty

Universal Windows Direct

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 2002
Pros:
  • Pros icon Makes charitable contributions
  • Pros icon Manufactures products in-house
  • Pros icon Wide variety of products and services
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Limited service area
  • Pros icon Some installations carried out by third-party contractors
  • Pros icon Quality of service will depend on your area

Universal Windows Direct has the best warranty in Sullivan. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This provider has 20 years of experience in the window installation business, and it has established itself as one of the most reputable companies in the business.

You may want to consider choosing Universal if you're looking for a installer that has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct's commitment to sustainability can be seen in its 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 Sullivan?

Universal doesn't have any prices displayed 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. Requesting a free quote on its website is the best way to get more accurate pricing information.

We strive to remain unbiased and transparent by describing pros and cons for each provider. Additionally, any partnerships do not affect our rankings.

More Window Replacement Companies in Sullivan

Feldco Windows, Siding & Doors

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

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Fast Delivery
  • Service icon Tempered Glass
  • Service icon Double-Hung

Website: https://www.4feldco.com/locations/springfield/
Address: 719 Estill Dr, Springfield, IL 62707
Phone: (866) 433-5326

Window World of Central Illinois

Springfield, IL
4.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

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

Website: https://www.windowworldcentralillinois.com/
Address: 6200 S 2nd St Unit B, Springfield, IL 62711
Phone: (217) 544-0400

Central Illinois Glass Cutters

Mattoon, IL
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.ciglasscutters.com/
Address: 2405 Lake Land Blvd, Mattoon, IL 61938
Phone: (217) 258-8423

Midwest AutoSkins

Savoy, IL
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows

Website: https://www.midwestautoskins.com/
Address: 315 S Dunlap Ave, Savoy, IL 61874
Phone: (217) 240-7530

The Blind Man Inc.

Champaign, IL
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: https://www.cublindman.com/
Address: 505 S Mattis Ave Ste B Ste B, Champaign, IL 61821
Phone: (217) 920-0868

Bam Roofing & Construction

Effingham, IL
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.bamroofs.com/
Address: 700 W Fayette Ave, Effingham, IL 62401
Phone: (217) 236-6040

Chuck's Glass & Mirror Co

Lincoln, IL
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Award-Winning
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

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

Website: http://chucksglassco.com/
Address: 221 S Sherman St, Lincoln, IL 62656
Phone: (217) 735-4307

All Windows Direct

Decatur, IL
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

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

Website: http://www.allwindowsdirect.net/
Address: 3134 N Water St, Decatur, IL 62526
Phone: (217) 422-9999

Roto-Rooter Plumbing & Drain Service

Champaign, IL
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.rotorooter.com/
Address: 1304 Anthony Dr, Champaign, IL 61821
Phone: (217) 866-1949

Clean Cut Painting & Handyman

Decatur, IL
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: https://www.cleancutpaintingandhandymanil.hibuwebsites.com/
Address: 1004 E Eldorado St, Decatur, IL 62521
Phone: (217) 498-3267

Home Services at The Home Depot

Champaign, IL
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows

Website: https://www.homedepot.com/l/Champaign/IL/Champaign/61820/1984/services
Address: 820 Bloomington Rd, Champaign, IL 61820
Phone: (217) 817-0397

Home Services at The Home Depot

Mattoon, IL
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows

Website: https://www.homedepot.com/l/Mattoon/IL/Mattoon/61938/1967/services
Address: 1301 Fort Worth Way, Mattoon, IL 61938
Phone: (217) 817-0389

B & B Glass

Decatur, IL
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: http://bandbglass.net/
Address: 651 E Wood St, Decatur, IL 62523
Phone: (217) 429-1917

Pella Windows & Doors of Champaign

Champaign, IL
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.pellabranch.com/central-illinois/showrooms/champaign/
Address: 1001 N Country Fair Dr, Champaign, IL 61821
Phone: (217) 356-6474

Bacon & Van Buskirk Glass Co.

Springfield, IL
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: http://bvbglass.com/
Address: 1011 Junction Cir, Springfield, IL 62704
Phone: (217) 787-8282

Simonton Windows & Doors

Paris, IL
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Award-Winning
  • Pros icon Educational Website

Services Offered

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

Website: http://simonton.com/
Address: 13263 IL-133, Paris, IL 61944
Phone: (217) 466-2851

Clearview Glass Inc

Springfield, IL
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Full-Service Installations
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Commercial Windows

Website: http://www.gotglass.net/
Address: 2835 E Clear Lake Ave, Springfield, IL 62703
Phone: (217) 544-4961

Bacon's Windows & Doors

Champaign, IL
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: http://bvbwindows.com/
Address: 801 S Neil St, Champaign, IL 61820
Phone: (217) 356-6471

Duncan Windows & Floors

Mattoon, IL
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: http://duncanwindowsandfloors.com/
Address: 920 Dewitt Ave, Mattoon, IL 61938
Phone: (217) 234-3485

Jesse Heating & Air Conditioning Decatur

Decatur, IL
3.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Award-Winning
  • Pros icon Free assessment

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Commercial Windows

Website: https://jesseheatingandair.com/
Address: 4483 W Main St, Decatur, IL 62522
Phone: (217) 422-1744

Castle Home Comfort Heating & Cooling

Champaign, IL
3.6
★★★★★
  • 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 Custom Window Designs
  • Service icon Commercial Windows

Website: https://castlehomecomfort.com/
Address: 2100 S Neil St, Champaign, IL 61820
Phone: (217) 352-2800

KAS Windows LLC

Mattoon, IL
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.kaswindows.com/
Address: 1321 Lake Land Blvd, Mattoon, IL 61938
Phone: (217) 254-9941

Pella Windows & Doors of Springfield

Springfield, IL
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.pellabranch.com/central-illinois/showrooms/springfield-il/
Address: 4330 Wabash Ave, Springfield, IL 62711
Phone: (217) 793-0550

Pella Windows & Doors of Decatur

Forsyth, IL
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.pellabranch.com/central-illinois/showrooms/decatur/
Address: 1351 Hickory Point Dr C, Forsyth, IL 62535
Phone: (217) 423-7722

Express Home Repairs Handyman Service

Champaign, IL
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Custom Window Designs

Website: https://www.champaignhomerepairservice.com/
Address: 3 Imperial Ct, Champaign, IL 61820
Phone: (217) 649-9444

How Installing Energy-Efficient Windows in Sullivan Saves You Money

Energy-efficient windows can benefit you in several ways. Here are some reasons you may want to consider making the switch:

  • Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes tend to have windows that are outdated, leaky or potentially even damaged in some way. Upgrading your windows could help raise the value of your property if you decide to sell.
  • Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your home, you can lower your indirect greenhouse gas emissions by about 12%, according to Energy Star.
  • Save on power bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of residential energy use. Installing energy-efficient models can help lower how much energy is used in your home, therefore saving you about 12% more on your bills.
  • 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 damaging UV rays, preventing fading of your furniture, carpet and other valuables.

Estimated Cost of Window Replacement in Sullivan

Each window replacement company provides various services and has varying price points based on a few factors.

How Much Do New Windows Cost?

Even though the average to replace one window is about $600, it can range from $200 to $1,200. How much it will cost you is based on several factors, such as number of windows, size, the location of your home, material, type and more.

It's important to note that windows with the best efficiency may cost more initially but can save you hundreds of dollars via returns on your energy bills. Investing in Energy Star certified windows can save Sullivan homeowners $311+ a year when replacing single-pane windows.

Costs will also vary based on the material you want for your window frames. Aluminum frames cost the least. They're sturdy, light and maintenance-free, but provide poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made with wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.

What Services do Window Installers Offer?

In general, there are two kinds of window replacement services companies offer: full-frame and pocket installations.

A full-frame installation replaces the total window, such as the windowsill, frame, trim and the window panes. As this type of installation requires more time, it will cost more than a pocket installation. Pocket installations are on the simpler end and won't cost as much, as they entail merely replacing the window within its existing frame. But if the frame has any damage, you may need a full-frame installation instead.

If you're still trying to decide which type of installation you need, you can talk to your provider and get their advice. The decision mostly depends on the age of your window frames and if there's any damage.

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • Low prices relative to competitors
  • Great industry reputation
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Manufactures products in-house
  • Member of US Green Building Council
  • Award-winning company
  • No lifetime warranty

Best for Residential Windows

Window Nation

★★★★★
4

  • Award-winning company
  • Manufactures products in-house
  • Wide variety of products and services
  • Limited service area

How We Choose the Best Window Installers in Sullivan

In our hunt to find the most reliable, eco-friendly window installers in Sullivan, the EcoWatch team landed on the above companies as the top window installation companies in the city. Along with energy efficiency, we evaluated window companies all across the state and ranked them based on the following methodology:

Service Area

Because this is a guide for Sullivan, we paid more attention to companies that cover 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 Sullivan.

Work Quality

We're willing to bet that you're not looking for a company to do a shoddy 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

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

Cost

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

Warranty

As discussed previously, windows are a significant investment, so you'll want to be certain that investment is well protected. Window installation companies that offer lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

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

Sullivan, IL Window Replacement FAQs

How much should window installation cost?

The typical cost to replace a window can range from $450 to $650. There are several factors that influence the cost, which include the number of windows, how energy-efficient the windows are, your property's location, styles and sizes of windows, the materials used in designing the windows and local labor costs.

What type of window is the most energy-efficient?

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

What services do window installation companies offer?

Window installation professionals go to your property to remove your old windows and replace them with new ones. Some providers install products distributed by other companies, whereas others install their own windows. The installer will also clean up after the installation.

What time of year is the best time to replace my windows?

Though you can install windows any time of year, warmer weather is often better for replacing windows. Additionally, it shouldn't be raining, since rain can make the installation more difficult.

How do you know it's time to replace your windows?

Windows typically have a lifespan of around 20 to 30 years, but anytime you see damage on your windows, it's a good time to have an expert take a look at them to see if they are in need of a repair or replacement.

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