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

If you’re looking to get new windows, our guide to the top window installation companies can help.

We analyzed all the top-rated window companies in Sterling 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 June 24, 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 Sterling may not seem like the most riveting article on the EcoWatch site, but trust us, windows have a more direct impact on your life than you might realize. Drafty, leaky windows can cost you in electric bills. As a matter of fact, the Department of Energy estimates that 25-30% of your house’s heat or cool air could be lost through your windows.

Luckily, saving you money with efficient windows also aligns with our goals of conserving energy and the resources it takes to produce it.

So if you’re constructing a new home, renovating or updating your windows in Sterling, this is the best place to get started.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

Best Window Installation & Replacement Companies in Sterling

The EcoWatch team evaluated many window companies in Sterling to find the best ones for our readers. The companies we’ve included in this article scored best in our categories: 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 has windows expertise in Sterling. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has about 27 years of experience in the window replacement sector. Its reputation is backed by hundreds of positive reviews on customer review websites.

Window World may be the company for you if you're interested in 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

There are a wide range of window types that Window World offers, 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 Sterling?

Even though prices are not available on Window World’s website, it's known for offering some of the most affordable window installations around. If you’d like more accurate information, you can ask for 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 Sterling. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of experience in the window replacement sector. Its reputation is backed by hundreds of positive reviews on customer review websites.

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

There are a wide range of window types that Renewal by Andersen offers, some of which are Energy Star products. 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 Sterling?

Even though prices are not 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. If you’d like more accurate information, you can ask for 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 Sterling. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has about 16 years of experience in the window replacement sector. Its reputation is backed by hundreds of positive reviews on customer review websites.

Window Nation may be the company for you if you're interested in one 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

There are a wide range of window types that Window Nation offers, some of which are Energy Star products. 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 Sterling?

Even though prices are not 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. If you’d like more accurate information, you can ask for a quote on the company’s website.

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

More Window Companies in Sterling

Renewal by Andersen of Quad Cities

Davenport, IA
4.7
★★★★★
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: https://davenportwindowsdoors.com/
Address: 250 Research Pkwy, Davenport, IA 52806
Phone: (563) 400-5101

American Quality Windows Inc

Sterling, IL
4.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.americanqualitywindows.com/
Address: 1102 E 4th St, Sterling, IL 61081
Phone: (815) 718-1284

MDS Construction, Inc.

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

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.mdsinco.com/
Address: 920 E River Rd, Dixon, IL 61021
Phone: (815) 315-8753

Pella Window and Door Showroom of Rockford, IL

Rockford, IL
4.6
★★★★★
  • 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 Window Replacement/Installation
  • Service icon Double-Hung

Website: https://www.pella.com/locations/il/rockford/
Address: 4301 11th St, Rockford, IL 61109
Phone: (815) 397-6780

Midwest Window Company

Moline, IL
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.midwestwindowco.com/
Address: 1002 34th Ave, Moline, IL 61265
Phone: (309) 455-3100

New Look Window

Rock Island, IL
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation

Website: http://newlookwindow.com/
Address: 1839 46th St, Rock Island, IL 61201
Phone: (309) 292-5772

Pella Windows & Doors of Davenport

Davenport, IA
4.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.pellabranch.com/quad-cities/showrooms/davenport/
Address: 2830 E 53rd St, Davenport, IA 52807
Phone: (563) 441-1756

Home Services at The Home Depot

Clinton, IA
2.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

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

Website: https://www.homedepot.com/l/Clinton/IA/Clinton/52732/2113/services
Address: 1850 Lincoln Way, Clinton, IA 52732
Phone: (563) 217-2994

Mad City Windows & Baths

Davenport, IA
4.6
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.madcitywindows.com/
Address: 5000 Tremont Ave, Davenport, IA 52807
Phone: (563) 424-7997

Window World of Rockford

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

Services Offered

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

Website: https://www.windowworldrockford.com/
Address: 6010 Forest Hills Rd, Loves Park, IL 61111
Phone: (815) 395-1333

Kobyco Inc

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

Services Offered

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

Website: https://www.kobycoinc.com/
Address: 4131 N Perryville Rd, Loves Park, IL 61111
Phone: (815) 654-5151

Huskie Exteriors

Rockford, IL
3.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

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

Website: https://huskieexteriors.com/
Address: 4901 W State St, Rockford, IL 61102
Phone: (815) 519-3237

Nelson & Son Siding Contractors

Le Claire, IA
2.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation

Website: http://nelsonandsonsiding.com/
Address: 23691 Great River Rd, Le Claire, IA 52753
Phone: (563) 289-9011

Pella Windows & Doors of Mendota

Mendota, IL
2.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

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

Website: http://pellachicago.com/
Address: 907 Washington St, Mendota, IL 61342
Phone: (815) 539-7724

Schmeling Building Supply

Rockford, IL
3.2
★★★★★
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.schmeling.com/
Address: 1031 School St, Rockford, IL 61101
Phone: (815) 963-6455

Freedom Builders & Remodelers

Rockford, IL
3.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

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

Website: https://www.rockfordremodeling.biz/
Address: 1125 Milford Ave, Rockford, IL 61109
Phone: (815) 985-0310

The Glass Shop, Inc.

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

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Mirrors

Website: http://theglassshopinc.net/
Address: 1419 La Salle St, Ottawa, IL 61350
Phone: (815) 433-3530

Country Glass, Inc.

Beloit, WI
3.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

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

Website: https://www.marvin.com/find-a-dealer/country-glass-inc-beloit-wi-0514-profile
Address: 1492 Huebbe Pkwy, Beloit, WI 53511
Phone: (608) 365-6550

Jd's Glass & Mirror

Marseilles, IL
2.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Storm/Impact Windows
  • Service icon Mirrors
  • Service icon Window Repair

Website: https://www.jdsglassmirror.com/
Address: 140 Young St, Marseilles, IL 61341
Phone: (815) 795-3757

Window World of Davenport

Davenport, IA
4.6
★★★★★
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.windowworldofdavenport.com/
Address: 2406 W Kimberly Rd, Davenport, IA 52806
Phone: (563) 323-7313
Sterling Window Cost Calculator

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

By switching to energy-efficient windows, you can take advantage of several benefits, including:

  • Protect your investment: Upgrading your windows is an important part of maintaining your property and its real estate value, particularly if you have an older home.
  • 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.
  • Save on electricity bills: Since energy-efficient windows reduce the amount of energy used to heat or cool your home, the switch can help you save around $320 annually on your energy bills in Sterling.
  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out damaging UV rays, reducing fading of your furniture, carpet and other valuables.

Estimated Cost of Window Replacement in Sterling

Windows come in various purposes, styles and shapes, so costs and services will differ greatly based on several factors. Below, we detail the typical cost and services that you’ll find from window installation companies.

How Much Do New Windows Cost?

According to our market research, the typical cost to install a single window is around $600. However, window installation costs can range from $200 to $1,200 per window. But costs differ considerably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also offer door installations, which will add extra costs to your project.

Whether or not you pick energy-efficient windows is another factor that will determine the cost. These will typically cost more than other windows, but on the other hand, you can save about $320 a year on your energy bills in Sterling.

How much your window installation costs will also vary based on the kind of window material you choose for the frames. Wood windows are usually the most expensive, but it depends on whether they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are more efficient.

What Services do Window Installers Offer?

The first thing to ask yourself when planning a window installation is: Do you need a full-frame installation or a pocket installation?

Full-frame installations are usually recommended when you want a new style or your window has significant rot or deterioration. With this service, your installers will replace the whole window, including the frame, sill and trim. Pocket installations (or retrofits) entail replacing a window within its existing frame, which makes pocket installations take less time and therefore cost less. But, if the frame has any damage or rot, you will likely need a full-frame installation instead.

If you’re still debating which kind of installation you should get, you can consult with your installer and get their recommendation. The choice mostly depends on how old the frames are and if there’s any damage present.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

How We Choose the Best Window Installers in Sterling

EcoWatch reviews are different from other reviews because we evaluate these companies through a sustainability lens. We have decided to review the best window installers in Sterling mainly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows can reduce your 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 on this list to make sure its technicians are well-qualified and that the company has received plenty of positive customer feedback to vouch for its service.

Customer Reviews

Customer feedback is another super important review factor. If most customers don’t have nice feedback 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 want to keep costs as low as possible. When analyzing the prices of providers, we awarded higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.

Warranty

Protecting your investment in new windows is important. For that reason, window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Lastly, we like to see companies that have been in the industry for a while. Window installers that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.

Sterling, IL Window Replacement FAQs

What is the typical cost to install windows in a home?

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

What are the kinds of windows?

The most common types of windows for homes are transom windows, bay windows, double-hung and single-hung windows, slider windows, casement windows, awning windows and picture windows.

Can I install my own windows?

Although it is possible to install your own windows, doing so is time-consuming and requires a lot of handiness. Using a window replacement company can help ensure that the installation is done properly and that you can avoid spending the time and effort of doing it yourself.

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

Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, they probably need to be replaced. Apart from 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.