9 Best Window Companies in Alton, TX (2025 Reviews)
If you’re looking to upgrade to new windows, our list of the top window installation companies can help.
We analyzed all the top-rated window companies in Alton and selected the best 9 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
The EcoWatch team is all about helping Alton homeowners make their homes more eco-friendly. Traditional, outdated windows could lead to spending more on energy bills during the winter or summer months.
That’s not great for your bank account or the environment, but one of the top window installation companies can help with that.
As windows are so important for your home, picking the best company for you is a big choice to make. That’s why the EcoWatch team has put together this list of the top window installation companies, so you can make an informed decision more easily.
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Energy-Efficient Features
DaBella
- Great warranty
- Friendly sales representatives
- Offers good financing options
Best Window Installation & Replacement Companies in Alton
The EcoWatch team researched dozens of companies that service the Alton area to find the top window installation companies that fit our standards. The companies mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, customer service, price and beyond.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World provides windows expertise in Alton. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This provider has 27 years of experience in the window installation business, and it has become one of the most reputable companies in Alton.
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 WindowsIts 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 be sure to mention that you’re interested in Energy Star windows when inquiring.
How much does Window World cost in Alton?While pricing is not readily available on Window World’s website, 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 the cost.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen provides the best availability in Alton. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This provider has 27 years of experience in the window installation business, and it has become one of the most reputable companies in Alton.
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 WindowsA 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 be sure to mention that you’re interested in Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Alton?While pricing is not readily 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. You can inquire about a free quote on its website for more information about the cost.

Texas Window Store
Low prices relative to competitors
Low number of customer complaints
Wide variety of products and services
Limited service area
Young company
Texas Window Store provides the best local installation in Alton. It's not a physical store and does not manufacture its own products, but it does work with brand-name window and door suppliers. This provider has 4 years of experience in the window installation business, and it has become one of the most reputable companies in Alton.
It has established itself as a company that has dedicated customer service and can carry out an installation in a timely manner.
Energy Efficiency of Texas Window Store WindowsIt carries a wide variety of name-brand windows, including Andersen and Pella, so the company has many energy-efficient options. Not all of Texas Window Store’s windows are Energy Star certified, so be sure to mention that you’re interested in Energy Star windows when inquiring.
How much does Texas Window Store cost in Alton?While pricing is not readily available on Texas Window Store’s website, it pitches your project to a group of window manufacturers, and says window costs are typically based on five factors: size, type, material, geographical region and dealer/reseller. You can inquire about a free quote on its website for more information about the cost.

Window Nation
Award-winning company
Manufactures products in-house
Custom designs
Wide variety of products and services
Installation not covered by warranty
Limited service area
Window Nation provides the best residential windows in Alton. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This provider has 16 years of experience in the window installation business, and it has become one of the most reputable companies in Alton.
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 WindowsEach 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 be sure to mention that you’re interested in Energy Star windows when inquiring.
How much does Window Nation cost in Alton?While pricing is not readily 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. You can inquire about a free quote on its website for more information about the cost.
One thing to note is that the companies in this section are national, which means the quality of the service may depend on your local team. We have tried to remain unbiased and transparent by including both pros and cons for each provider.
More Window Companies in Alton
Window Depot USA of South Texas
Harlingen, TXEducational Website
Price Transparency
Free assessment
Services Offered
Glass Doors
Custom Window Designs
Triple Pane Glass
Window Replacement/Installation
Vinyl Frames
Double-Hung
Energy-Efficient Options
Glass Doctor of McAllen
McAllen, TXEducational Website
Price Transparency
Services Offered
Glass Repair
Glass Showers
Mirrors
Energy-Efficient Options
Custom Glass
Window Replacement/Installation
Window Repair
Window World Rio Grande Valley
McAllen, TXEducational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Glass Doors
Bay Windows
Window Replacement/Installation
Double-Hung
Home Services at The Home Depot
Mission, TXGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
Glass Showers
Energy-Efficient Options
Bay Windows
Glass Mart Mirrors & Supplies - Residential and Commercial Glass Company
Brownsville, TXFree assessment
Good Customer Service
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Tempered Glass
Custom Glass
Mirrors
Glass Doors
Glass Showers
Skylights
Rio Grande Windows
McAllen, TXEducational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Window Repair
Window Replacement/Installation
Home Services at The Home Depot
Pharr, TXPrice Transparency
Good Customer Service
Educational Website
Free assessment
Services Offered
Screen Repair
Custom Glass
Custom Window Designs
Glass Doors
Vinyl Frames
Glass Showers
Window Replacement/Installation
Storm/Impact Windows
Home Services at The Home Depot
Brownsville, TXEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Glass Doors
Screen Repair
Storm/Impact Windows
Vinyl Frames
Window Replacement/Installation
Energy-Efficient Options
Bay Windows
Custom Window Designs
Glass Showers
Home Services at The Home Depot
Harlingen, TXPrice Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in Alton, TX using our customized window cost calculator.
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 Alton Saves You Money
Energy-efficient windows can provide benefits in more than one way. Here are some reasons you may want to consider making the switch:
- Decrease your carbon footprint: Decreasing the amount of energy you use also lowers your carbon emissions. You could reduce it by 507 pounds per year on average.
- Save money on energy bills: Once you upgrade to energy-efficient windows, you can see a reduction in your bills by about 12% because you’ll need less energy to heat or cool your house.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
- Protect your valuables: Many energy-efficient 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 Alton
When researching window installation, each company offers varying services and prices. Let’s go over some typical costs and services.
How Much Do New Windows Cost?
The average cost to replace one window is about $600 but can range from $200 to $1,200. Costs will differ considerably based on your location, the quality of your products, the current condition of your home and the number of windows you need. Many window companies also offer replacement door installations and other add-ons like baths, coating, shutters and more. Additional services will increase overall project costs.
It’s important to keep in mind that windows with higher efficiency may cost more upfront but can save you hundreds of dollars by decreasing your energy bills. Investing in Energy Star certified windows can save Alton homeowners $460+ a year when replacing single-pane windows.
We advise getting free quotes from multiple window installers to find the right windows and the company that works best for you.
What Services do Window Installers Offer?
The first step when considering a window replacement is to decide whether you want a full-frame or pocket installation.
Full-frame installations involve replacing the full window — the sill, frame, trim and all. These are typically done when you want a new style for your windows or when it has a great amount of deterioration. Full-frame installations are more time-consuming and will increase overall costs. Pocket installations (also known as retrofits) are when you replace a window within its existing frame. Pocket installations are on the simpler end and won’t carry as large a bill, but you can’t do this kind of installment if you have any pre-existing rot or water damage.
If you’re unsure which kind of window installation service you should get, your installer should be able to help you out. Generally, the choice is based on factors like the age and condition of the home, the type of building material, budget and time restrictions.
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Energy-Efficient Features
DaBella
- Great warranty
- Friendly sales representatives
- Offers good financing options
How We Choose the Best Window Installers in Alton
The EcoWatch Reviews team is different from other reviewers because we examine these companies through a sustainability lens. Along with energy efficiency, we reviewed window companies all across the state and assigned rankings using the following methodology:
Service Area
This one is 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
When installing new windows, the quality and variety of services often plays just as important of a role in insulation and performance as the type of window you choose. We do give window installers more points if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
We analyzed patterns in recent online reviews to find the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it reflects the quality of services across nearly every category, including quality of installation, warranty, quality of parts, cost, professionalism and more.
Cost
Cheaper windows certainly don’t mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing providers’ prices, we awarded higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
As discussed previously, windows are a considerable investment, so you’ll want to be certain that investment is protected. Window installation companies that provide 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 a while. Window installation companies that have more years of experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Alton, TX Window Replacement FAQs
How much does window installation cost?
The typical cost of installing a window can range between $450 and $650. There are a variety of factors that affect the price, such as the number of windows, local labor costs, your property’s location, the materials used in designing the windows, styles and sizes of windows and how energy-efficient the windows are.
What are the types of windows?
There are several different kinds of windows you can get for your house, such as bay windows, casement windows, picture windows, awning windows, double-hung and single-hung windows, slider windows and transom windows.
Do you really have to use a window installation company?
You should use a window installation professional whenever you need new windows. Installing windows is a complex process that can take a lot of time, so it’s best left to the professionals.
What time of year is a good time to replace my windows?
Replacement windows can be installed during any season, but autumn might be best. No matter when you install them, the contractors will take steps to make sure that too much hot or cold air doesn’t get into your home, so the temperature outside doesn’t necessarily matter that much. Most importantly, the weather should be dry.
How long does window installation generally take?
Since the average installation time is 30 minutes per window, about 16 windows can be installed during an 8-hour work day.