17 Best Window Companies in Sterling, IL (2023 Reviews)

Thinking about improving your property's look? The best window replacement companies can help.

We analyzed all the top-rated window companies in Sterling and selected the best 17 based on:

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

By EcoWatch Local Advisors

Updated September 15, 2023

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

Although clean energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your home's efficiency can also have a large impact on home energy conservation. During the winter months, the last thing you want is your heat to leak out of your outdated, drafty windows.

Fortunately, helping you save energy with upgraded windows also helps our goals of conserving energy and the resources it takes to generate it.

Unlike other review sites, EcoWatch ranks window replacement companies based on energy efficiency while also considering 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 Sterling

The EcoWatch team researched dozens of installers across the country to find the best window replacement companies for our readers. We assessed the installers based on energy-efficient offerings, customer service, coverage area, price, local experience 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. This company has 27 years of experience in the window installation business, and it has become one of the most reputable companies in the business. Hundreds of positive reviews on customer review websites back the company's reputation.

It has established itself as a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.

Energy Efficiency of Window World Windows

Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World’s windows are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.

How much does Window World cost in Sterling?

Prices are not available on Window World’s website since the cost of window replacement differs based 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. Receiving a free quote on its website is the best way to know for sure.

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. This company has 27 years of experience in the window installation business, and it has become one of the most reputable companies in the business. Hundreds of positive reviews on customer review websites back the company's reputation.

It has established itself as a company 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

A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019. Not all of Andersen’s windows are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Sterling?

Prices are not available on Andersen’s website since the cost of window replacement differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Receiving a free quote on its website is the best way to know for sure.

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 Sterling. Universal has around 20 years of experience in the window replacement business. Its reputation is backed by all the positive reviews from customers online.

It has established itself as a company that has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct is an Energy Star partner offering a variety of energy-efficient windows that are Energy Star certified. 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?

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. The best way to get more accurate pricing information is to request a free quote from the company.

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. This company has 16 years of experience in the window installation business, and it has become one of the most reputable companies in the business. Hundreds of positive reviews on customer review websites back the company's reputation.

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’d like Energy Star windows when inquiring.

How much does Window Nation cost in Sterling?

Prices are not available on Window Nation’s website since the cost of window replacement differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. Receiving a free quote on its website is the best way to know for sure.

We aim to remain unbiased and transparent by including pros and cons for every company we review. Additionally, our rankings are not influenced by any partnerships.

More Window Companies in Sterling

Renewal by Andersen of Quad Cities

Davenport, IA
4.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

Website: https://davenportwindowsdoors.com/
Address: 1008 W 35th St, Davenport, IA 52806
Phone: (563) 400-5101

Window World of Rockford

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

Services Offered

  • Service icon Window Repair
  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Residential Windows
  • Service icon Double-Hung
  • Service icon Window Replacement
  • Service icon Commercial Windows
  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Sliding Glass
  • Service icon Custom Window Designs

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

American Quality Windows Inc

Chadwick, IL
4.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.americanqualitywindows.com/
Address: 2391 Jefferson Rd, Chadwick, IL 61014
Phone: (815) 718-1284

Home Services at The Home Depot

Clinton, IA
3.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

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

Pella Windows & Doors of Mendota

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

Services Offered

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

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

Nelson & Son Siding Contractors

Le Claire, IA
3.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

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

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

Pella Window and Door Showroom of Rockford, IL

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

Services Offered

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

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

Freedom Builders & Remodelers

Rockford, IL
3.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

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

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

Pella Windows & Doors of Davenport

Davenport, IA
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

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

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

New Look Window

Rock Island, IL
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

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

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

Responsive Roofing, LLC

DeKalb, IL
4.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

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

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

Midwest Window Company

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

Services Offered

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

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

XL Contracting

Roscoe, IL
4.3
★★★★★
  • 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 Energy-Efficient Options
  • Service icon Window Replacement
  • Service icon Residential Windows
  • Service icon Double-Hung
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Commercial Windows

Website: http://xl-contracting.com/
Address: 11415 Main St, Roscoe, IL 61073
Phone: (844) 507-6551

Kobyco Inc

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

Services Offered

  • Service icon Window Replacement
  • Service icon Residential Windows
  • Service icon Sliding Glass
  • Service icon Commercial Windows

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

Sandwich Millworks

Sandwich, IL
3.5
★★★★★

Services Offered

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

Website: http://sandwichmillworks.com/
Address: 700 W Center St, Sandwich, IL 60548
Phone: (815) 786-2700

Window World of Davenport

Davenport, IA
4.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Price Transparency

Services Offered

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

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

Home Services at The Home Depot

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

Services Offered

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

Website: https://www.homedepot.com/l/Rockford/IL/Rockford/61107/1928/services
Address: 6930 Argus Dr, Rockford, IL 61107
Phone: (815) 324-0167
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 and your family can benefit in several ways, such as:

  • Better temperature control in your home: Energy-efficient windows can lower how hard your heating system needs to work to heat your home.
  • Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes tend to have windows that are outdated, drafty or potentially even damaged in some way. Updating your windows could help increase the value of your home if you decide to sell.
  • Save on electricity bills: Because energy-efficient windows decrease how much energy you need to heat or cool your home, they can help you save about $320 annually on your energy bills in Sterling.
  • Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.

Estimated Cost of Window Replacement in Sterling

Let's go over the cost of window replacement and the kinds of services offered by installers.

How Much Do New Windows Cost?

On average, homeowners in Sterling can expect that most replacement window installations will range from $250 to $1,200, with the most common installations sitting at about $600. This is because of the fact that the cost of window installations depend on several factors specific to your home, like the size, material and number of windows you need to install, as well as the location of your property.

It's also worth noting that energy-efficient windows will cost more upfront, but Energy Star estimates that upgrading the windows on your Sterling home translates to an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 a year for double-pane windows. How much you'll save by installing energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.

The cost of your window installation will also vary depending on the kind of material you choose for the frames. Wood windows are generally the most expensive, though it depends if they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are shown to be more efficient.

What Services do Window Installers Offer?

Generally, there are two types of window replacement services you can get: full-frame and pocket installations.

A full-frame installation replaces the complete window, including the windowsill, frame, trim and the window panes. As this kind of installation is more involved, it will cost more than a pocket installation. Pocket installations (or retrofits) entail installing a new window within the existing frame, which makes pocket installations take less time and therefore cost less. However, if the frame has any rot or deterioration, you will likely need a full-frame installation instead.

Your window installation company can recommend the best type for your project. In Sterling, the choice will mostly be based on the efficiency of your home and how old your existing frames are.

Best Availability

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house

Best Energy-Efficient Features

Champion

★★★★★
4.5

  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty

Window Veteran

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Wide variety of products and services
  • Lifetime Warranty

How We Choose the Best Window Installers in Sterling

EcoWatch reviews differ from most reviews since we look at these companies through a sustainability lens. We've assessed the top window installers in Sterling primarily based on their energy efficient offerings, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows can cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve Sterling so you can find a quality 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 installer featured on this list to ensure its technicians are well-qualified and that the company has gotten plenty of positive customer feedback to vouch for its service.

Customer Reviews

Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don't have good things to say about their experience with a certain installer, it won't be featured on EcoWatch.

Cost

This one is a give-and-take: as with most services, cheap window companies are not going to provide the highest quality service. On the other hand, we want to make sure we're highlighting companies that provide a variety of price and financing options so they're accessible to most homeowners.

Warranty

As discussed previously, windows are a sizable investment, so you'll want to make sure that investment is protected. 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 quite some time. Window installation companies 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

How much does window installation cost?

The national average cost of replacing a single window is about $600 but can range from $200 to $1,200, depending on a few different factors. The price is often dependent on 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 different types of windows?

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

What do window installation companies do?

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

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

While you can install windows any time of year, warmer weather is typically better for installing replacement windows. Additionally, the weather should be dry, as rain can make the installation harder.

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