20 Best Window Companies in Alton, IL (2024 Reviews)
Are you looking to replace your windows? Our guide to the best window installation companies can help you choose the right one for you.
We analyzed all the top-rated window companies in Alton and selected the best 20 based on:
- Customer reviews
- Window installation expertise
- Popularity with home-owners like you
Please enter a valid 5-digit zip code!
Updated February 01, 2024
Why you can trust EcoWatch
Whether you're updating for aesthetics or have damaged windows, windows play a key role in conserving your home's energy. If your house has old or damaged windows, your HVAC system could be working extra hard to heat or cool your home. This means higher power bills.
Replacement windows improve your home’s insulation, not only making you more comfortable during extreme temperatures, but also saving you money and helping the environment.
Efficient windows are especially important in Alton, where the temperature varies throughout the year. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $313 per year.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Alton
The EcoWatch Reviews team examined dozens of installers in Alton to find the best window installation companies for our readers. The providers in this article scored best in our categories, including energy-efficient offerings, price, customer service, availability and more.
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 offers the best availability in Alton. Andersen has about 27 years of industry experience, and it currently serves nearly every state except Mississippi and West Virginia.
You may want to consider opting for Andersen if you're interested in a installer 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 WindowsRenewal by Andersen’s commitment to sustainability can be seen in its energy-efficient window offerings. 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 Alton?Andersen does not mention prices 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. The best way to get more accurate information is to get a free quote from the company.
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 offers windows expertise in Alton. Window World has about 27 years of industry experience, and it currently serves 200 locations nationwide.
You may want to consider opting for Window World if you're interested in a installer 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 WindowsWindow World’s commitment to sustainability can be seen in its energy-efficient window offerings. 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 Alton?Window World does not mention prices on its website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate information is to get a free quote from the company.
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 offers the best residential windows in Alton. Window Nation has about 16 years of industry experience, and it currently serves residents within 75 miles of its showrooms, which are in 13 states.
You may want to consider opting for Window Nation if you're interested in a installer that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation’s commitment to sustainability can be seen in its energy-efficient window offerings. 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 Alton?Window Nation does not mention prices 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. The best way to get more accurate information is to get a free quote from the company.
Universal Windows Direct
- Makes charitable contributions
- Manufactures products in-house
- Wide variety of products and services
- Lifetime warranty
- Limited service area
- Some installations carried out by third-party contractors
- Quality of service will depend on your area
Universal Windows Direct offers the best warranty in Alton. Universal has about 20 years of industry experience, and it currently serves 27 states nationwide.
You may want to consider opting for Universal if you're interested in a installer that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct’s commitment to sustainability can be seen in its energy-efficient window offerings. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Alton?Universal does not mention prices 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. The best way to get more accurate information is to get a free quote from the company.
We’ve recommended companies with good reputations, but note that some national companies have independently owned locations in Alton, so the quality of service may differ depending on your local crew. We have tried to remain unbiased and transparent by including pros and cons for every company we reviewed.
More Window Companies in Alton
Renewal by Andersen
Maryland Heights, MO- Timely Service
- Price Transparency
- Good Customer Service
- Free assessment
- Educational Website
Services Offered
- Skylights
- Window Install & Replacement
- Window Repair
- Sliding Glass Doors
- Commercial Windows
- Andersen
- Bay Windows
Window World of St. Louis
Earth City, MO- Good Customer Service
- Price Transparency
- Educational Website
- Timely Service
- Free assessment
Services Offered
- Bay Windows
- Double-Hung
- Sliding Glass Doors
- Vinyl Frames
- Window Install & Replacement
- Custom Window Designs
Champion Replacement Windows of St. Louis
Fenton, MO- Free assessment
- Good Customer Service
- Price Transparency
Services Offered
- Window Install & Replacement
- Window Repair
- Storm Doors
- Sliding Glass Doors
- Double-Hung
- Bay Windows
Window Nation
Overland, MO- Good Customer Service
- Price Transparency
- Free assessment
- Educational Website
Services Offered
- Sliding Glass Doors
- Bay Windows
- Window Install & Replacement
- Energy-Efficient Options
Lyons Glass Company
Alton, IL- Price Transparency
Services Offered
- Commercial Windows
- Window Install & Replacement
- Glass Showers
- Tempered Glass
- Window Repair
- Mirrors
H&F Exteriors
Glen Carbon, IL- Price Transparency
- Free assessment
- Educational Website
- Good Customer Service
Services Offered
- Residential Windows
- Window Install & Replacement
Penny Window
St. Louis, MO- Good Customer Service
- Free assessment
- Educational Website
- Price Transparency
- Timely Service
Services Offered
- Sliding Glass Doors
- Window Repair
- Energy-Efficient Options
- Window Install & Replacement
- Storm Windows
Just windows and Doors
Florissant, MO- Good Customer Service
- Price Transparency
- Educational Website
- Free assessment
Services Offered
- Window Install & Replacement
Butler Home Improvement
Collinsville, IL- Price Transparency
- Free assessment
- Educational Website
- Good Customer Service
Services Offered
- Window Install & Replacement
Morse Home Improvement
Alton, IL- Good Customer Service
- Free assessment
- Price Transparency
Services Offered
- Sliding Glass Doors
- Aluminum Frames
- Bay Windows
- Window Install & Replacement
- Simonton
STL Windows and Doors
Earth City, MO- Free assessment
- Educational Website
- Timely Service
- Price Transparency
- Good Customer Service
Services Offered
- Storm Doors
- Window Install & Replacement
- Double-Hung
- Bay Windows
- Sliding Glass Doors
- Fiberglass Frames
Gateway Door and Contracting
St Charles, MO- Good Customer Service
- Free assessment
- Educational Website
- Price Transparency
Services Offered
- Window Install & Replacement
- Commercial Windows
- Window Repair
Home Services at The Home Depot
St. Louis, MO- Good Customer Service
- Price Transparency
- Educational Website
- Free assessment
Services Offered
- Window Repair
- Glass Showers
- Window Install & Replacement
Mad City Windows & Baths
St Charles, MO- Good Customer Service
- Educational Website
- Price Transparency
- Free assessment
Services Offered
- Energy-Efficient Options
- Sliding Glass Doors
- Vinyl Frames
- Bay Windows
- Window Install & Replacement
- Glass Showers
Windows Doors & More LLC
St Charles, MO- Price Transparency
- Educational Website
- Free assessment
- Good Customer Service
Services Offered
- Energy-Efficient Options
- Window Install & Replacement
Chaney Windows And Doors
Maryland Heights, MO- Free assessment
- Good Customer Service
- Price Transparency
- Educational Website
Services Offered
- Vinyl Frames
- Wood Frames
- Stained Glass
- Energy-Efficient Options
- Storm Doors
- Fiberglass Frames
- Window Install & Replacement
- Sliding Glass Doors
- Bay Windows
- Glass Doors
Energy View Home Improvements
Hazelwood, MO- Free assessment
- Good Customer Service
- Price Transparency
Services Offered
- Window Install & Replacement
- Bay Windows
Genesco Window Products
Maryland Heights, MOServices Offered
- Sliding Glass Doors
- Window Install & Replacement
- Andersen
- Window Repair
- Mirrors
Cardinal Contractors
St. Louis, MO- Free assessment
- Good Customer Service
- Price Transparency
Services Offered
- Commercial Windows
- Window Install & Replacement
- Window Repair
Green Tree Home Solutions
Edwardsville, IL- Price Transparency
- Free assessment
- Educational Website
Services Offered
- Pella
- Commercial Windows
- Window Install & Replacement
- Window Repair
Calculate how much you can expect to pay for window installation and replacement in Alton, IL 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
When you switch to energy-efficient windows, you may see several benefits, including:
- Save on power bills: Switching to energy-efficient windows reduces your energy bills by about 12% since you use less energy.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its value, particularly if you have an older home.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only insulate your home better, but also filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
- Reduce your carbon footprint: Because energy-efficient windows improve the insulation in your house, you can cut your indirect greenhouse gas emissions by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in Alton
Each window installer provides varying services and has different price points depending on a few factors.
How Much Do New Windows Cost?
The average cost to replace one window is about $600 but can range anywhere from $200 to $1,200. But costs vary considerably depending 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.
With windows, efficiency is one of the most important factors for many homeowners. Windows with higher efficiency may cost more off the bat, but by increasing the efficiency of your home — especially during the summer and winter — they can give you many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Alton homeowners $313+ a year after replacing single-pane windows.
Requesting free quotes from several companies is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
There are generally two types of window installation services: full-frame and pocket installations.
A full-frame installation replaces the entire window, including the sill, frame, trim and the window panes. As this type of installation is more involved, it will cost more than a pocket installation. Pocket installations (or retrofits) involve replacing a window within the existing frame, which makes pocket installations more simple and affordable. But, if the frame has any damage or rot, you will most likely need a full-frame installation instead.
Your window installation company should be able to help you choose which type of installation you need.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Alton
EcoWatch differs from most reviewers because we evaluate these companies through a sustainability lens. We’ve reviewed the best window replacement companies in Alton mostly based on energy efficiency, as it’s the most sustainable option and the best one for homeowners. Energy-efficient windows have been shown to lower power bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve the Alton area so you can find the right window installation company near you.
Work Quality
When picking new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the brand of window you opt for. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Customer feedback is another very important review factor. If most customers don’t have good things to say about their experience with a certain company, it won’t be featured on EcoWatch.
Cost
This one is a give-and-take: as with most services, cheap window installation companies may not provide the most quality service. On the other hand, we want to make sure we’re highlighting companies that provide a spectrum of price and financing options so they’re accessible to most homeowners.
Warranty
Protecting your investment in new windows is important to many homeowners. That’s why 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 quite some time. 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, IL Window Replacement FAQs
How much should window installation cost?
The national average cost of installing a single window is around $600 but can range between $200 and $1,200, based on several factors. The price is often influenced by the type and material of the window, the location of your property and the size of the window. Also, keep in mind that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.
Which kind of window is the best?
Generally, double-pane windows are more efficient than single-pane windows and windows that do not open will be more efficient than windows that do. If you want to be sure you’re getting the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — that means they’re certified energy-efficient by the U.S. Department of Energy.
Can I replace my own windows?
If you’re handy and have experience with similar home improvement projects, it’s possible to install your own windows. However, if you don’t have the time or experience, we recommend getting a professional to do it for you.
Should I replace my windows all at the same time?
If your windows are greater than 20 years old, you most likely need to replace all of them. By that point, they are typically less efficient, draftier and/or more damaged than new windows. Doing your windows all at the same time will involve less paperwork and less stress.
How long does window installation typically take?
Each window takes about 30 minutes to install based on the kind of window. However, the window installation can take two days or more if you have a lot of windows that must be installed.