20 Best Window Companies in St. Marys, OH (2025 Reviews)
Looking to replace your home's windows? We’ve got you covered in this list of the best window installation companies.
We analyzed all the top-rated window companies in St. Marys 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
A guide on the best window replacement companies in St. Marys may not seem like the most interesting article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might think. During the winter months, the last thing you want is your heat to leak out of your outdated windows.
That’s also bad for the environment, as the extra energy used by damaged windows increases your carbon footprint.
We’ve made this guide on the top installation companies to help you in your search, so you can not only take advantage of brand-new windows, but also save money on your power bills.
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 St. Marys
The EcoWatch Reviews team assessed several window providers across St. Marys to narrow our list down to the best ones. The companies reviewed in this article scored best in our categories, which include energy-efficient offerings, availability, price, customer service and more.

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 is the largest window replacement company in the country, known for its vinyl windows and affordability. This company has 27 years of experience in the window installation industry, and it has proved to be one of the most respected companies in the business.
You may want to consider going with Window World if you're looking for 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for Energy Star windows when inquiring. 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 St. Marys?Window World does not list prices on its website, but it's known for offering some of the most affordable window installations around. For more detailed information on pricing, 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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the window installation industry, and it has proved to be one of the most respected companies in the business.
You may want to consider going with Andersen if you're looking for 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for 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?Andersen does not list 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. For more detailed information on pricing, 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 is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This company has 16 years of experience in the window installation industry, and it has proved to be one of the most respected companies in the business.
You may want to consider going with Window Nation if you're looking for 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for Energy Star windows when inquiring. 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 St. Marys?Window Nation does not list 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. For more detailed information on pricing, you can ask for a quote from the company.
We strive to remain unbiased and transparent by including pros and cons for every company we review. Additionally, our rankings are not affected by any partnerships.
More Window Companies in St. Marys
Champion Replacement Windows of Dayton
Huber Heights, OHFree assessment
Good Customer Service
Price Transparency
Services Offered
Double-Hung
Bay Windows
Glass Doors
Window Replacement/Installation
Champion Replacement Windows of Ft. Wayne
Fort Wayne, INPrice Transparency
Good Customer Service
Free assessment
Services Offered
Double-Hung
Glass Doors
Window Replacement/Installation
Bay Windows
Screenmobile of East-Central Indiana
New Castle, INFree assessment
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Glass Doors
Screen Repair
Custom Window Designs
Buschurs Home Improvement Center
Dayton, OHPrice Transparency
Free assessment
Services Offered
Window Replacement/Installation
Double-Hung
Vinyl Frames
Glass Doors
Simply Windows & Doors
Dayton, OHTimely Service
Good Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Custom Window Designs
Double-Hung
Bay Windows
Energy-Efficient Options
Glass Doors
Window Depot USA of Dayton, OH
Dayton, OHGood Customer Service
Price Transparency
Timely Service
Free assessment
Educational Website
Services Offered
Energy-Efficient Options
Glass Doors
Vinyl Frames
Custom Window Designs
Double-Hung
Triple Pane Glass
Window Replacement/Installation
Window Depot
Dayton, OHFree assessment
Educational Website
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
Bay Windows
Triple Pane Glass
Double-Hung
The Brain Lumber Co
Springfield, OHGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Allied Exteriors
Fort Wayne, INEducational Website
Free assessment
Price Transparency
Services Offered
Vinyl Frames
Window Replacement/Installation
Bushey's Windows & Doors
Fort Wayne, INEducational Website
Good Customer Service
Services Offered
Fiberglass Frames
Window Replacement/Installation
Glass Doors
Energy-Efficient Options
Centurion Exteriors
Fort Wayne, INEducational Website
Free assessment
Good Customer Service
Timely Service
Services Offered
Window Replacement/Installation
Glass Doors
Vinyl Frames
Bay Windows
Skylights
L.J. Stone, Inc. - Baths, Showers, Windows, Doors and Patio Covers
Muncie, INPrice Transparency
Timely Service
Good Customer Service
Educational Website
Free assessment
Services Offered
Glass Showers
Bay Windows
Glass Doors
Window Replacement/Installation
Double-Hung
Budget Blinds of Muncie and Noblesville
Muncie, INTimely Service
Good Customer Service
Free assessment
Educational Website
Services Offered
Custom Window Designs
Window Replacement/Installation
Energy-Efficient Options
Stronghold Glass
Bluffton, INEducational Website
Free assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Glass Repair
Vinyl Frames
Mirrors
Glass Showers
ImproveIt Home Remodeling
Dayton, OHEducational Website
Good Customer Service
Free assessment
Price Transparency
Timely Service
Services Offered
Glass Showers
Double-Hung
Window Replacement/Installation
Bay Windows
Seigman's Siding & Window Specialists
Defiance, OHPrice Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Window World of Muncie
Muncie, INPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Glass Doors
Bay Windows
Window Replacement/Installation
Double-Hung
True Crew Windows and Doors
Muncie, INEducational Website
Price Transparency
Free assessment
Services Offered
Glass Doors
Custom Window Designs
Window Replacement/Installation
Energy-Efficient Options
Pella Windows & Doors of Fort Wayne
Fort Wayne, INGood Customer Service
Free assessment
Educational Website
Services Offered
Wood Frames
Double-Hung
Window Replacement/Installation
Bay Windows
Glass Doors
Universal Windows Direct of Fort Wayne
Fort Wayne, INFree assessment
Educational Website
Services Offered
Glass Doors
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in St. Marys, OH 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
Energy-efficient windows can offer benefits in several ways. Here are some reasons you may want to think about making the switch:
- 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 because of their ability to filter out damaging UV rays.
- Save money on power bills: Once you upgrade to energy-efficient windows, you can expect a reduction in your bills by about 12% since you’ll require less energy to heat or cool your house.
- Protect your investment: When you have an older home, your windows could also be outdated or drafty. Upgrading and repairing your windows is an important part of maintaining your property and its real estate value.
- Decrease your carbon footprint: In St. Marys, you can lower your indirect greenhouse gas emissions by about 525 pounds per year once you switch to energy-efficient windows.
Estimated Cost of Window Replacement in St. Marys
Let’s take a look at the cost of replacing your windows and the types of services you may need for your home.
How Much Do New Windows Cost?
On average, St. Marys homeowners can expect their window installations to range from $250 to $1,200. The average cost sits at around $600. Costs will vary significantly depending on the quality of your products, the current condition of your home, your location and the number of windows you need. A lot of window companies also offer door installations and other add-ons like baths, shutters, coating and more. Additional services will increase your overall project costs.
It’s important to bear in mind that windows with higher efficiency may cost more initially but can save you hundreds of dollars by lowering your energy bills. Investing in Energy Star certified windows can save St. Marys homeowners $303+ a year when replacing single-pane windows.
Another factor that influences the total cost is the material of the frame you select. Aluminum frames are generally the least expensive and are sturdy and relatively maintenance-free, but they offer poor insulation. On the other hand, wood frames cost the most because they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.
What Services do Window Installers Offer?
The first question to ask yourself when planning a window installation is: Should you get a full-frame installation or a pocket installation?
Full-frame installations are usually done when you want a new style or your window has a lot of deterioration. With this service, your professionals will replace the complete window, including the frame, sill and trim. A pocket installation entails installing a new window within the frame that’s already there. So, instead of taking out the whole unit and rebuilding it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.
Your window installation company will be able to help you figure out what’s best for your needs. In St. Marys, the decision will mostly be based on how old your windows are and if there’s any damage. Wood can decay if not maintained properly over the years, so it’s a good idea to have a professional examine your frames and window sills.
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 St. Marys
In our hunt to make your home improvements easier and more eco-friendly in St. Marys, the EcoWatch Reviews team chose the above companies as the top window installation companies in the city. We’ve reviewed the top window replacement companies in St. Marys mainly based on their energy efficient offerings, as it’s what’s best for the environment and for you as a homeowner. Energy-efficient windows can lower electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Because this is a guide for St. Marys, we paid more attention to companies that provide services to the city. There are certainly other reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in St. Marys.
Work Quality
We’re willing to bet that you’re looking for professionals who do a great job installing windows. We’ve vetted each company included on this list to ensure its contractors are well-qualified and that the company has gotten tons of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent customer feedback to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the factor we place the most value on, as it reflects the quality of services across most other categories, including warranty, quality of parts, professionalism, cost, quality of installation and more.
Cost
This one is a give-and-take: as with most services, cheap window installation companies won’t always provide the highest quality service. Still, we want to ensure we’re highlighting companies that offer a wide range of price and financing options so they’re accessible to most homeowners.
Warranty
As discussed, windows are a serious investment, so you’ll want to be certain that investment is protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to St. Marys’s climate, homeowners need to be wary of rot, water damage and low efficiency. We factored in local experience to reflect the ability of St. Marys window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
St. Marys, OH Window Replacement FAQs
What is the typical cost to install new windows in a home?
The average cost of installing a single window ranges between $450 and $650. There are a variety of factors that influence how much it costs, which include local labor costs, styles and sizes of windows, the materials used in designing the windows, how energy-efficient the windows are, your property’s location and the number of windows.
What kind of window is the best for energy efficiency?
A window’s energy efficiency is affected by a number of factors, such as the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are usually the most energy-efficient and are certified by the U.S. Department of Energy.
Can you install your own windows?
If you’re handy and have experience with similar home improvement projects, it’s possible to install your own windows. But if you don’t have the time or skills, we recommend hiring a professional.
What time of year is a good time to replace my windows?
Though you can install windows any time of year, warmer weather is generally better for installing replacement windows. Additionally, the weather should be dry, as rain can make the installation harder.
Should I replace all my windows at once?
If your windows are greater than 20 years old, it’s most likely time to replace all of them. At that point, they are usually less efficient, leakier and/or more damaged than new windows. Doing your windows all at the same time will involve less paperwork and less time.