20 Best Window Companies in Shiloh Valley, IL (2025 Reviews)
Looking to improve your home’s insulation? The top window replacement companies can help.
We analyzed all the top-rated window companies in Shiloh Valley and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
Whether you're updating for style or have old windows, windows play a crucial role in conserving your home's energy. Potential leaks or drafts can cut your home’s energy efficiency by up to 30%, according to the Department of Energy. In Shiloh Valley, that’s about $316 a year that you could save on your energy bills after making the switch.
Thankfully, saving you money with more efficient windows also aligns with our goals of reducing energy usage for the environment.
Unlike other sites, EcoWatch ranks window replacement companies on energy efficiency while also taking into consideration cost, customer satisfaction and service area.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- 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
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best Window Installation & Replacement Companies in Shiloh Valley
The EcoWatch team examined dozens of installers in Shiloh Valley to find the top window companies for our readers. The providers mentioned in this article passed our review standards for energy-efficient offerings as well as price, local expertise, customer service 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 has windows expertise in Shiloh Valley. Window World has about 27 years of experience in the window installation sector.
Window World may be the company for you if you're looking for one 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 Shiloh Valley?Prices aren’t listed on Window World’s website, but it's known for offering some of the most affordable window installations around. For more accurate information on the cost, you can ask for a quote from the company.

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 has the best availability in Shiloh Valley. Andersen has about 27 years of experience in the window installation sector.
Andersen may be the company for you if you're looking for one 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 Shiloh Valley?Prices aren’t listed on Andersen’s website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more accurate information on the cost, you can ask for a 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 has the best residential windows in Shiloh Valley. Window Nation has about 16 years of experience in the window installation sector.
Window Nation may be the company for you if you're looking for one 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 Shiloh Valley?Prices aren’t listed on Window Nation’s 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. For more accurate information on the cost, you can ask for a quote from the company.
We strive to remain unbiased and transparent by listing pros and cons for each company we review. Additionally, our rankings are not affected by any partnerships.
More Window Companies in Shiloh Valley
Renewal by Andersen
Maryland Heights, MOGood Customer Service
Price Transparency
Free assessment
Timely Service
Educational Website
Services Offered
Skylights
Double-Hung
Bay Windows
Window Replacement/Installation
Glass Doors
Champion Replacement Windows of St. Louis
Fenton, MOPrice Transparency
Free assessment
Good Customer Service
Services Offered
Glass Doors
Window Replacement/Installation
Double-Hung
Bay Windows
Window Nation
Overland, MOFree assessment
Price Transparency
Good Customer Service
Educational Website
Services Offered
Energy-Efficient Options
Glass Doors
Window Replacement/Installation
Bay Windows
Double-Hung
Custom Window Designs
Vinyl Frames
Colonial Construction
St. Louis, MOGood Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Building Envelope Experts
Fenton, MOPrice Transparency
Timely Service
Good Customer Service
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Bay Windows
Double-Hung
Glass Doors
Vinyl Frames
Custom Window Designs
Energy-Efficient Options
Chaney Windows And Doors
Maryland Heights, MOGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Glass Doors
Vinyl Frames
Wood Frames
Bay Windows
Window Replacement/Installation
Energy-Efficient Options
Gateway Door and Contracting
St Charles, MOEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Windows Doors & More LLC
St Charles, MOGood Customer Service
Educational Website
Free assessment
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Home Comfort Exteriors
St Peters, MOPrice Transparency
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Quality Installation
Swansea, ILGood Customer Service
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
Butler Home Improvement
Collinsville, ILFree assessment
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Cardinal Contractors
St. Louis, MOGood Customer Service
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
STL Windows and Doors
Earth City, MOTimely Service
Free assessment
Good Customer Service
Price Transparency
Educational Website
Services Offered
Double-Hung
Window Replacement/Installation
Glass Doors
Bay Windows
Gateway General Contractors
O'Fallon, MOPrice Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
L&D Wilson's Siding & Roofing Inc
Lebanon, ILTimely Service
Good Customer Service
Price Transparency
Free assessment
Services Offered
Window Repair
Window Replacement/Installation
Double-Hung
Energy-Efficient Options
Mills Window & Door Showroom
Fenton, MOGood Customer Service
Free assessment
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Lyons Glass Company
Alton, ILFree assessment
Price Transparency
Good Customer Service
Services Offered
Tempered Glass
Window Replacement/Installation
Mirrors
Glass Repair
Glass Doors
Glass Showers
Jacob Sunrooms, Exteriors & Baths
Fenton, MOFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Fiberglass Frames
Vinyl Frames
Energy-Efficient Options
Glass Showers
Window Replacement/Installation
Glass Doctor of St. Charles, MO
St Charles, MOPrice Transparency
Educational Website
Good Customer Service
Services Offered
Tempered Glass
Custom Glass
Window Repair
Glass Repair
Glass Doors
Energy-Efficient Options
Window Replacement/Installation
Mirrors
Glass Showers
Jones Home Improvements
Cottleville, MOPrice Transparency
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in Shiloh Valley, 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 Shiloh Valley Saves You Money
There are several perks of switching to energy-efficient windows. A few reasons you may want to consider making the switch are the following:
- Reduce your carbon footprint: In Shiloh Valley, you can cut your indirect greenhouse gas emissions by about 642 pounds per year when you switch to energy-efficient windows.
- Protect your investment: When your home is on the older side, your windows could also be outdated or damaged. Upgrading and repairing your windows is an important part of maintaining your property and its value.
- Save money on power bills: After you install energy-efficient windows, you can expect a reduction in your bills by about 12% because you’ll use less energy to heat or cool your home.
- Protect your valuables from fading: When you switch to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out harmful UV rays.
Estimated Cost of Window Replacement in Shiloh Valley
When looking into window installation, each company provides different services and prices. Let’s take a look at some typical costs and services.
How Much Do New Windows Cost?
Even though the national average cost of replacing one window is about $600, it can range from $200 to $1,200. This is because the cost of window installations depend on several factors specific to your home, such as the size, material and number of windows you need to install, as well as where your property is located.
With windows, efficiency is the most important factor for many homeowners. Efficient windows may cost more upfront, but by increasing the efficiency of your home — particularly during the summer and winter — they can provide decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save Shiloh Valley homeowners $316+ a year after replacing single-pane windows.
The cost of your window installation will also vary based on the kind of material you choose for the frames. Wood windows are typically the most expensive, but it depends on whether they are completely wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are more efficient.
What Services do Window Installers Offer?
In general, there are two types of window installation services you can get: full-frame and pocket installations.
Full-frame installations involve replacing the whole window — the sill, frame, trim and all. These are most common when you want to change the style of your window or when it has a great amount of deterioration. Full-frame installations are more comprehensive and will increase overall costs. A pocket installation involves replacing a window without removing the entire frame, which is generally cheaper than a full-frame installation.
If you’re unsure which window installation service you need, your installer can advise you. Generally, the decision is influenced by factors like the age and condition of the home, the type of building material, budget and time restrictions.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- 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
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
How We Choose the Best Window Installers in Shiloh Valley
EcoWatch is different from most reviewers since we’re examining these companies through a sustainability lens. Along with energy efficiency, we analyzed several window installers in Shiloh Valley and assigned rankings using the following methodology:
Service Area
Since this is a guide for Shiloh Valley, we paid more attention to companies that serve the city. There are other reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in Shiloh Valley.
Work Quality
When picking new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the brand of window you choose. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
Customer feedback is another very important review factor. If the majority of customers don’t have nice 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 companies may not provide the most quality service. On the other hand, we want to ensure 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 well protected. Window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have a proven track record in the industry. Window installers 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.
Shiloh Valley, IL Window Replacement FAQs
What is the typical cost to replace windows in a home?
The typical cost of replacing a single window ranges between $450 and $650. There are many factors that affect how much it costs, which include local labor costs, how energy-efficient the windows are, the number of windows, styles and sizes of windows, the materials used in designing the windows and your property’s location.
What are the most common types of replacement windows?
There are various kinds of windows you can get for your home, such as slider windows, bay windows, casement windows, awning windows, double-hung and single-hung windows, picture windows and transom windows.
When should I use a window installation company?
Unless you’re handy and have all the necessary tools to replace your own windows, we recommend hiring a professional installer. The process of installing windows is complex and can take anywhere from four to six hours for a single window. Although it’s tempting to try to do it yourself to save money, hiring a professional is a faster, more efficient and much safer alternative.
Should I replace my windows all at the same time?
If you want to get more efficient windows and save money on your energy bills, replacing all of your windows together is the only way to see a noticeable difference. However, if you have just one or two windows that are broken or drafty, you can replace just those.