8 Best Window Companies in St. Marys, KS (2023 Reviews)
Are you thinking about replacing your windows? Our guide to the top window installation companies can help you choose the right one for you.
We analyzed all the top-rated window companies in St. Marys and selected the best 8 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
Whether you're updating for style or have damaged windows, windows play a vital role in conserving your home's electricity. Potential leaks or drafts from your windows can make your home uncomfortable in the summer or winter.
Installing upgraded, efficient windows on your house can help you save money every month on your electric bills — and you can help the environment as well.
As windows are so important for your home, picking the right company for you is a big decision to make. That's why the EcoWatch team has created this list of the best window installation companies, so you can more easily make an informed decision.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in St. Marys
The EcoWatch team researched dozens of installers across the country to find the top window companies for our readers. The installers mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, customer service, price and beyond.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World provides windows expertise in St. Marys. This provider has 27 years of experience in the windows business, and it has become one of the most reputable companies in St. Marys. Many positive reviews from customers online back the provider's reputation.
It 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 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 be sure to mention that you want energy-efficient windows to your Window World representative when inquiring about services.
How much does Window World cost in St. Marys?Window World doesn’t have any prices listed on its website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate pricing information is to get a free quote from the company.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window installation business for about 27 years.
It 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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want high-quality Energy Star windows when inquiring. 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 St. Marys?Prices aren’t available 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. The best way to get more accurate pricing information is to ask for a free quote from the company.

Window Nation
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Award-winning company
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Manufactures products in-house
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Custom designs
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Wide variety of products and services
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Installation not covered by warranty
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Limited service area
Window Nation has the best residential windows in St. Marys. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has over 16 years of experience in the industry, and it currently serves residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by all the positive reviews on customer review websites.
If you’re looking for a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms, Window Nation may be the perfect provider for you.
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 St. Marys?Prices aren’t available 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. If you’d like more accurate pricing information, you can inquire about a quote on the company’s website.
We have tried to stay unbiased and transparent by describing pros and cons for every installer. Additionally, any partnerships do not affect our reviews.
More Window Companies in St. Marys
Renewal by Andersen
Topeka, KS-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Commercial Windows
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Window Replacement
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Stained Glass
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Residential Windows
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Glass Showers
KanView Glass
Topeka, KS-
Free assessment
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Price Transparency
Services Offered
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Residential Windows
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Full-Service Installations
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Custom Window Designs
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Window Replacement
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Commercial Windows
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Glass Showers
Home Improvement Gallery
Topeka, KS-
Good Customer Service
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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Window Replacement
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Custom Window Designs
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Sliding Glass
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Glass Showers
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Residential Windows
Midland Exteriors Inc
Topeka, KS-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Residential Windows
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Window Replacement
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Custom Window Designs
Pella Windows & Doors of Manhattan
Manhattan, KS-
Free assessment
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Double-Hung
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Window Replacement
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Residential Windows
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Bay Windows
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Sliding Glass
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Fast Delivery
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Custom Window Designs
Home Services at The Home Depot
605 Seth Child Rd, KS-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Fast Delivery
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Glass Showers
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Stained Glass
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Window Replacement
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Residential Windows
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Commercial Windows
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Custom Window Designs
Pella Windows & Doors of Topeka
Lawrence, KS-
Educational Website
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Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Residential Windows
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Bay Windows
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Fast Delivery
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Window Replacement
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Sliding Glass
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Custom Window Designs
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Double-Hung
Home Services at The Home Depot
Lawrence, KS-
Good Customer Service
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Price Transparency
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Educational Website
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Free assessment
Services Offered
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Residential Windows
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Fast Delivery
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Custom Window Designs
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Glass Showers
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Stained Glass
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Window Replacement
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Commercial Windows
Calculate how much you can expect to pay for window installation and replacement in St. Marys, KS 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 St. Marys Saves You Money
When you upgrade to energy-efficient windows, you may see a few perks, including:
- More efficient energy use in your home: Because the winters can get very cold in St. Marys, homeowners usually depend on their heater a lot. Energy-efficient windows reduce how much heat is lost through your windows, which makes it easier to keep your home warm.
- Reduce your carbon footprint: Because energy-efficient windows improve the insulation in your house, you can reduce your carbon footprint by about 12%, according to Energy Star.
- Protect your investment: Upgrading your windows is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
- More efficient energy use in your home: In St. Marys where the summers can get quite hot, energy-efficient windows cut back on how much cool air is lost through your windows, which makes it easier to keep your home cool.
Estimated Cost of Window Replacement in St. Marys
Windows come in various styles, purposes and shapes, so costs and services will vary remarkably depending on several factors. Below, we describe the average cost and services that you can get from window installers.
How Much Do New Windows Cost?
Although the national average to install one window is about $600, it can range from $200 to $1,200. These numbers are based on specific characteristics of your installation, like material, type, size, number of windows, the location of your home and more.
Keep in mind that energy-efficient windows may cost more, but Energy Star predicts the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 per year when you install double-pane, clear glass windows. Your savings will vary depending on your local climate, energy rates and individual home characteristics.
Another factor that influences the total cost is the material of the frame you pick. Aluminum frames are usually the least expensive and are sturdy and relatively maintenance-free, but they provide poor insulation. On the other hand, wood frames cost the most, as they are aesthetically pleasing and provide decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.
What Services do Window Installers Offer?
There are typically two types of window replacement services: full-frame and pocket installations.
Full-frame installations are usually recommended when you want to change the style of your windows or your window has a lot of rot. With this service, your installers will replace the full window, including the sill, trim and frame. A pocket installation involves installing a new window without replacing the frame. This means instead of removing the whole unit and rebuilding it, the contractor will just slide the replacement window (also called a retrofit or insert window) into the frame.
Your window installation company can advise you on the best type for your project. In St. Marys, the choice will mostly be based on the efficiency of your home and the age of your existing frames.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in St. Marys
In our hunt to find the most reliable, eco-friendly window installers in St. Marys, EcoWatch evaluated many companies before deciding on these. Along with energy efficiency, we reviewed window companies all across the state and assigned rankings using the following methodology:
Service Area
Since this is a guide for St. Marys, we paid more attention to companies that provide services to the city. There are other reputable providers that didn't make the cut because they wouldn't be able to serve homeowners in St. Marys.
Work Quality
We're certain that you're looking for professionals who do a great job installing windows. We've vetted each company included on this list to make sure its contractors are well-qualified and that the company has received a lot of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another very important review factor. If the majority of customers don't have positive things to say about their experience with a certain company, you won't see it featured on EcoWatch.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers would like to keep costs as low as possible. When analyzing the prices of providers, we awarded higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important to many homeowners. That's why window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) 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 installers that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
St. Marys, KS Window Replacement FAQs
What is the average cost to install new windows in a home?
The national average cost to install one window is about $600 but can range from $200 to $1,200, based on several factors. The price is typically 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 hundreds of dollars a year in energy bills.
What type of window is the most energy-efficient?
Generally, double-pane windows will be more efficient than single-pane windows and windows that don't open are more efficient than windows that do. If you want to be sure you'll have the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — they're certified energy-efficient by the U.S. Department of Energy.
What services do window installation companies do?
Window installers visit your house to remove your old windows and replace them with new ones. Some companies install products manufactured by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation is complete.
How often do you need to replace windows?
Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, they probably need to be replaced. Apart from that, if your windows have any damage on them, or they have become difficult to operate, they may be in need of replacement.