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 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 Sterling 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. Potential leaks or drafts can decrease your home’s energy efficiency by up to 30%, according to the Department of Energy. In Sterling, that’s nearly $320 per year that you could save on your power bills by making the switch.

Luckily, helping you save money with efficient windows also helps our goals of reducing energy usage for the environment.

We’ve made a list of the best installation companies to help you in your research, so you can not only benefit from 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

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty

Best Window Installation & Replacement Companies in Sterling

The EcoWatch Reviews team examined dozens of companies that service the Sterling area to find the best window installation companies that fit our standards. The companies we’ve reviewed 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 offers windows expertise in Sterling. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window business for about 27 years. 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 is an Energy Star partner and offers a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Window World representative when inquiring about services.

How much does Window World cost in Sterling?

Window World doesn’t have any pricing information listed on its website, but it's known for offering some of the most affordable window installations around. You can ask for a free quote on its website for more information about the cost.

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 Sterling. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window business for about 27 years. 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 is an Energy Star partner and offers a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.

How much does Renewal by Andersen cost in Sterling?

Andersen doesn’t have any pricing information listed 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. You can ask for a free quote on its website for more information about the cost.

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 offers the best warranty in Sterling. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has been in the window business for about 20 years. 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 is an Energy Star partner and offers a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Universal representative when inquiring about services.

How much does Universal Windows Direct cost in Sterling?

Universal doesn’t have any pricing information listed 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 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 been in the window business for about 16 years. 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 is an Energy Star partner and offers a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Window Nation representative when inquiring about services.

How much does Window Nation cost in Sterling?

Window Nation doesn’t have any pricing information listed on its 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. You can ask for a free quote on its website for more information about the cost.

We’ve recommended providers with shining reputations, but bear in mind that these are national companies, so the quality of service may depend on your local crew. We have tried to stay unbiased and transparent by describing pros and cons for each company we reviewed.

More Window Companies in Sterling

Renewal by Andersen of Quad Cities

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

Services Offered

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

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

Window World of Rockford

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

Services Offered

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

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

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

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

Services Offered

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

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

Services Offered

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

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

Nelson & Son Siding Contractors

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

Huskie Exteriors

Rockford, IL
3.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

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

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

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

Midwest Window Company

Moline, IL
3.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

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

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

Kobyco Inc

Loves Park, IL
3.0
★★★★★
  • 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 Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Double-Hung
  • Service icon Bay Windows

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

The Glass Shop, Inc.

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

Services Offered

  • Service icon Mirrors
  • Service icon Window Replacement/Installation

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 Educational Website
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Double-Hung
  • 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 Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

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

Window World of Davenport

Davenport, IA
4.5
★★★★★
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

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 enjoy several benefits, such as:

  • Protect your investment: If you have a relatively old home, your windows are most likely in need of replacement. Updating your windows can make your home more comfortable and also help increase the value of your property if you decide to sell.
  • Decrease your carbon footprint: By using less energy once upgrading to energy-efficient windows, you’ll also be decreasing your carbon dioxide emissions by about 12%, according to Energy Star.
  • Save money on power bills: Switching to energy-efficient windows lowers your energy bills by about 12% because you need less energy.
  • Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.

Estimated Cost of Window Replacement in Sterling

Windows come in varying shapes and sizes, so costs and services will differ remarkably. Here are the typical costs and the primary services that you can find from window installers.

How Much Do New Windows Cost?

Even though the typical cost of installing a single window is about $600, it can range from $200 to $1,200. But prices 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 companies also offer door replacements, which will add extra costs to your project.

With windows, efficiency is the most important factor for most homeowners. Windows with higher efficiency may cost more initially, but by increasing the efficiency of your home — especially during the summer and winter — they can provide decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save Sterling homeowners $320+ per year after replacing single-pane windows.

Requesting free quotes from multiple installers is the best way to figure out which one will work best for your budget.

What Services do Window Installers Offer?

Generally, there are two types of window replacement services companies provide: full-frame and pocket installations.

Full-frame installations are usually done when you want a new style or your window has a lot of deterioration. With this service, your installers will replace the complete window, including the sill, frame and trim. Pocket installations are on the simpler end and won’t cost as much because they involve simply replacing the window within its existing frame. But if the frame has any damage or deterioration, you may need a full-frame installation instead.

If you’re still debating which type of installation you should get, you can talk to your provider and get their advice. 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
  • 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

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty

How We Choose the Best Window Installers in Sterling

EcoWatch reviews differ from most reviews since we look at these companies through a sustainability lens. We have evaluated the best window replacement companies in Sterling primarily based on their energy efficient offerings, as it’s what’s best for the environment and for you as a homeowner. Energy Star certified windows can reduce your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

This one is self-explanatory, but we’ve chosen to highlight window installers that serve Sterling so you can find a quality window installation company near you.

Work Quality

We’re certain that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each installer featured in our guide to make sure its contractors are well-qualified and that the company has received lots of positive customer feedback to vouch for its service.

Customer Reviews

Another self-explanatory yet super important review factor is customer feedback. If most customers don’t have positive feedback about their experience with a certain company, you won’t see it featured on EcoWatch.

Cost

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

Warranty

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

Years of Experience

Last but not least, we like to see companies that have been in the industry for quite some time. Window installers that have more experience 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?

The national average cost of replacing a single window is about $600 but can range from $200 to $1,200, depending on a variety of factors. The price is often influenced by the type and material of the window, the size of the window and the location of your property. Also, bear in mind that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.

What are the most common types of replacement windows?

There are various kinds of windows you can get for your home, such as transom windows, picture windows, casement windows, slider windows, bay windows, double-hung and single-hung windows and awning windows.

Can you install your own windows?

If you’re handy and know how to replace a window, you may be able to install your own windows. But if you don’t have the time or know-how, we don’t recommend it.

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 installing replacement windows. In addition, the weather should be dry, since rain can make the installation more difficult.

How often should you replace your windows?

Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, then 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.