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  • Written by
    Max Peterson
  • Fact Checked
  • Updated

Replacement windows can protect your home from leaks and drafts, enhance its energy efficiency, and give it extra charm. An experienced window provider can help you make the most of your new windows, so you can prolong their lifespan.

Top Pick
Renewal by Andersen logo
4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

  • Full-service installation
  • Large window selection
  • Nearly 30 years of experience

Buy One Window, Get One 40% OFF

Best Financing
Champion logo
4.4/5

Ratings are based on our detailed proprietary methodology and review standards.

  • Full-service installation
  • In-house, U.S.-made products
  • More than 70 years of experience

Save 35% + $100 off per window!

Most Customizable
Power Home logo
4.3/5

Ratings are based on our detailed proprietary methodology and review standards.

  • Full-service remodeling
  • 96% satisfaction rate
  • More than 30 years of experience

Next-Day Appointments Available

10 Best Window Replacement Companies in Alton

Brands are algorithmically curated from a database of local service providers near you. We require a minimum number of Google reviews and average ratings for provider inclusion.

We recommend working with one of these highly-rated contractors for your window replacement project in Alton.

Alton residents can trust the This Old House Reviews Team to provide timely, updated window installer recommendations. To find out the best installers, we concentrate on these five factors:

  • Energy-efficiency guarantees
  • Services and warranties
  • Professional experience and licensure
  • Product quality
  • Customer reviews and recommendations

Featured Partner
Renewal by Andersen Logo
Top Rated

Renewal by Andersen

4.9/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 1129 reviews


2446 Schuetz Rd, Maryland Heights, MO 63043

(314) 983-9977

www.renewalbyandersen.com/window-comp...
Featured Partner
Champion Replacement Windows of St. Louis Logo
Top Rated

Champion Replacement Windows of St. Louis

4.5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 369 reviews


29 Cassens Ct, Fenton, MO 63026

(636) 764-0470

www.championwindow.com/St-Louis

Lyons Glass Company

4.5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 83 reviews


2400 Belle St, Alton, IL 62002

(618) 462-2731

www.lyonsglasscompany.com

Just windows and Doors

4.1/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 20 reviews


4128 Seven Hills Dr, Florissant, MO 63033

(314) 458-0605

justwindowsanddoors.org

Penny Window

4.1/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 127 reviews


9910 Halls Ferry Road, St. Louis, MO 63136

(314) 867-4355

pennywindowstl.com

Energy View Home Improvements

4.4/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 24 reviews


7220 N Lindbergh Blvd #350, Hazelwood, MO 63042

(314) 598-2969

www.energyviewhomeimprovements.com
Window Nation Logo

Window Nation

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 615 reviews


1913 Belt Way Dr, Overland, MO 63114

(314) 279-8249

www.windownation.com/stlouis-showroom
Butler Home Improvement Logo

Butler Home Improvement

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 54 reviews


906 Vandalia St, Collinsville, IL 62234

(618) 344-7073

www.butlerhomeimprovement.com

Window World of St. Louis

4.8/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 718 reviews


3600 Rider Trail S, Earth City, MO 63045

(314) 993-1800

www.windowworldstlouis.com
Gateway Door and Contracting Logo

Gateway Door and Contracting

4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 147 reviews


3711 Mueller Rd, St Charles, MO 63301

(636) 577-1430

gatewaydoorstl.com

Facts about Alton

  • Annual Energy Efficient Windows Savings:
    $313
  • Average Max Temperature:
    64°F
  • Average Min Temperature:
    47°F
  • Average Daily Sunlight:
    55%
  • Average Annual Snowfall:
    14.1”
  • Average Monthly Precipitation:
    3.45”

How To Choose a Window Company in Alton

Each window provider has different offerings and approaches. To ease the company search, keep these factors in mind:

Window Cost by Type

When it comes to window replacement, value is most important. Each window you replace should deliver maximum durability at an affordable price point. Although high-quality replacement windows may be more expensive to buy, they often provide better long-term value due to their increased lifespan. The age of your home, in addition to the styles, sizes, and materials of windows you select, can impact pricing. Simple double-hung windows deliver great value with their straightforward style and simple mechanisms, while a sweeping, custom-size picture window will cost more. If you're undecided, a window company can help you determine which options are most suitable for your home.

In this table, you can find cost data for the most common residential window types to determine how much you might pay.

Window TypesAverage Cost
Arched$234-$1,434
Awning$338-$942
Bay$779-$5,779
Custom$347-$963
Casement$270-$1,562
Double-hung$126-$813
Egress$231-$577
Glass Block$46-$585
Picture$203-$1,498
Single-hung$92-$1,541
Skylight$116-$1,391
Sliding$265-$1,348
Storm$55-$381
Transom$283-$591

Window Material Cost

You'll also need to select a window material. Homeowners often make their selection by considering aesthetic preferences, the local climate and energy efficiency objectives. Aluminum windows are perfect for sleek, modern designs, but they cost more up-front. You'll pay less for wood windows up-front, but you'll need to invest in regular maintenance to prevent the frame from wear and warping. Vinyl is readily available and tends to cost less, but don't underestimate its strong durability and low maintenance needs.

Window TypesAverage Cost
Aluminum$55-$1,541
Composite$556-$1,250
Fiberglass$92-$779
Vinyl$187-$1,734
Wood$278-$1,562

Other Window Replacement Costs

Ask each contractor you're evaluating about warranty fees, labor costs, and permit fees. This will help you understand the overall expenses involved in the project.

Experience and Training

Examine a company's website and talk to a representative to learn more about its product and service offerings, pricing, and warranties. Many window companies also keep online portfolios that showcase past projects.

Ensure that the company focuses on window replacement. The more specific training its staff has, and the longer it has been in operation, the more likely it will provide top-notch workmanship.

Licensing and Credentials

Illinois doesn't issue state contracting licenses to window installers, but municipalities in the Land of Lincoln might have their own requirements for companies to follow. In Chicago proper, window installers must have a Class D or E license and submit copies of their business filings for the public record. Beyond the Windy City, licensing requirements are not uniform.

Types of Windows Offered

No two window companies offer the same window types and materials. Find one that focuses on the type you want for your home.

Also, check the kind of window framing materials a company works with. Each material has varying price points, life spans, and energy performance capabilities. Common materials include aluminum, wood, vinyl, fiberglass and composite.

Customer Feedback

One of the most surefire ways to vet a company is to check what other customers have written about their experiences. You can find customer reviews on websites like Google, Trustpilot, the BBB, and Yelp. Referrals can also help you in your company search. Ask each company you're interested in for a list of references, and talk to family and friends about who they use for window installations.

Frequently Asked Questions about Window Replacement in Alton

More Window Resources

National Windows Company Ranking Methodology

Sources

Energy Star

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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