20 Best Window Companies in St. Marys, GA (2025 Reviews)
Thinking about replacing your windows? We’ve got you covered in this guide to the top 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 review of the best window replacement companies in St. Marys may not seem like the most captivating article on EcoWatch, but trust us, windows have a more direct impact on your life than you might think. During the hot summer months, the last thing you want is your cool air to leak out of your drafty windows.
That’s bad for your wallet and the environment, but one of the top window installation companies can help you with that.
Because windows are so important for your home, choosing the best company for you is a big choice to make. That’s why the EcoWatch team has curated this list of the top window installation companies, so you can make an informed decision more easily.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
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 Window Installation & Replacement Companies in St. Marys
The EcoWatch Reviews team examined dozens of installers across the country to find the best window installation companies for our readers. The companies mentioned in this article scored best in our review categories, which include energy-efficient offerings, local expertise, availability, customer service, price 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. Window World has around 27 years of experience in the window replacement sector.
If you’re looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, Window World may be the perfect company for you.
Energy Efficiency of Window World WindowsWindow World’s commitment to sustainability shows 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 St. Marys?Prices aren’t available on Window World’s 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. Andersen has around 27 years of experience in the window replacement sector.
If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, Andersen may be the perfect company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen’s commitment to sustainability shows 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 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. For more detailed information on pricing, you can ask for a quote from the company.

Aeroseal Windows
Many years of experience
Great industry reputation
Low number of customer complaints
Manufactures products in-house
Custom Designs
No lifetime warranty
Not ideal for residential installations
Aeroseal Windows is an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. Aeroseal has around 23 years of experience in the window replacement sector.
If you’re looking for a company that installs windows and doors at businesses across the Eastern U.S, Aeroseal may be the perfect company for you.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows’s commitment to sustainability shows in its energy-efficient window offerings. The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more.
How much does Aeroseal Windows cost in St. Marys?Prices aren’t available on Aeroseal’s website, but it provides high-quality windows at a competitive price point. For more detailed information on pricing, you can ask for a quote from the company.
We strive to be unbiased and transparent by including pros and cons for every provider. Additionally, any partnerships do not influence our rankings.
More Window Companies in St. Marys
Renewal by Andersen of Jacksonville
Jacksonville, FLEducational Website
Free assessment
Good Customer Service
Services Offered
Custom Window Designs
Window Replacement/Installation
Glass Doors
Double-Hung
Bay Windows
Metal Frames
Atlantic Total Solutions
Yulee, FLEducational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Lee & Cates Glass
Jacksonville, FLWide selection of glass products
Educational Website
Energy-efficient glass
Price Transparency
Surface CPR treatments
Services Offered
Glass Repair
Glass Showers
Window Repair
Glass Doors
Window Replacement/Installation
Ace Door & Window
Jacksonville, FLPrice Transparency
Windows and doors built for Florida's climate
Educational Website
Free assessment
100% in-house
Good Customer Service
Financing options available
Services Offered
Storm/Impact Windows
Window Replacement/Installation
Wood Frames
Triple Pane Glass
Glass Doors
Vinyl Frames
Energy-Efficient Options
Preferred Upgrades
Jacksonville, FLExterior solutions made for the Southern climate
Free assessment
Educational Website
Veteran-owned
Insulated windows
Good Customer Service
Price Transparency
Services Offered
Vinyl Frames
Double-Hung
Storm/Impact Windows
Glass Doors
Window Replacement/Installation
Glass Specialists Inc.
Atlantic Beach, FLPrice Transparency
Educational Website
Services Offered
Window Replacement/Installation
Glass Repair
Custom Glass
Glass Doors
Energy-Efficient Options
Mirrors
Glass Showers
Screen Repair
Glass Doctor of Jacksonville
Jacksonville, FLPrice Transparency
Educational Website
Good Customer Service
Services Offered
Glass Showers
Window Replacement/Installation
Energy-Efficient Options
Window Repair
Custom Glass
Mirrors
Glass Repair
Jacksonville Doors and Windows
Jacksonville, FLEducational Website
Free assessment
Good Customer Service
Timely Service
Price Transparency
Services Offered
Double-Hung
Vinyl Frames
Window Replacement/Installation
Glass Doors
Dream Doors & Windows
Jacksonville, FLEducational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Double-Hung
Glass Doors
Energy-Efficient Options
Koehler Home Improvement
Jacksonville, FLPrice Transparency
Strict guidelines for installation process
Timely Service
Windows, doors, and siding services
Educational Website
Offers top Florida window manufacturers
Free assessment
Good Customer Service
Services Offered
Double-Hung
Glass Doors
Window Replacement/Installation
Metal Frames
Triple Pane Glass
Energy-Efficient Options
Performance Windows Jacksonville
Jacksonville, FLPrice Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Window World of Northeast Florida
Jacksonville, FLGood Customer Service
Price Transparency
Energy-efficient replacement glass
Free assessment
Financing options available
Awarded the ENERGY STAR® and Good Housekeeping Seal
Educational Website
Services Offered
Bay Windows
Window Replacement/Installation
Double-Hung
Glass Doors
FHIA Remodeling
Jacksonville, FLEducational Website
Good Customer Service
Hurricane-tough doors and windows
Warranties available
Price Transparency
Free assessment
Voted #1 remodeling company in Florida
Services Offered
Window Replacement/Installation
Bay Windows
Glass Doors
Storm/Impact Windows
Energy-Efficient Options
Glass Showers
Advanced Glass Inc
Jacksonville, FLFree assessment
Good Customer Service
Price Transparency
Services Offered
Glass Showers
Glass Repair
Window Replacement/Installation
Energy-Efficient Options
Preservation Home Specialists, Inc.
Jacksonville, FLFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Vinyl Frames
Storm/Impact Windows
Martin Home Exteriors
Jacksonville, FLTimely Service
Free assessment
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Lifetime Enclosures
Jacksonville, FLPrice Transparency
Educational Website
Free assessment
Insulated glass
Financing options available
Good Customer Service
Builds indoor and outdoor enclosures
Services Offered
Vinyl Frames
Window Replacement/Installation
Morgan Exteriors of Jacksonville
Jacksonville, FLFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Storm/Impact Windows
Bay Windows
Double-Hung
Window Replacement/Installation
Glass Doors
Better Home Improvement
Orange Park, FLGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Home Performance Alliance Inc.
Jacksonville, FLPrice Transparency
Free assessment
Timely Service
Good Customer Service
Educational Website
Services Offered
Bay Windows
Glass Showers
Vinyl Frames
Window Replacement/Installation
Storm/Impact Windows
Calculate how much you can expect to pay for window installation and replacement in St. Marys, GA 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
By upgrading to energy-efficient windows, you and your family can take advantage of several benefits, such as:
- Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% after you install Energy Star certified windows. In St. Marys, that’s about 476 pounds per year on average.
- Protect your investment: Upgrading your windows is an important part of maintaining your property and its value, particularly if your home is on the older side.
- Save on energy bills: The Department of Energy estimates that heat gained or lost via windows accounts for around 25-30% of residential energy use. Upgrading to energy-efficient windows can help lower that number, which helps you save $356 a year on your bills.
- Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out damaging UV rays.
Estimated Cost of Window Replacement in St. Marys
When considering window installation, each company offers different services and costs. Let’s go over some typical costs and services.
How Much Do New Windows Cost?
The national average cost to install one window is about $600 but can range anywhere from $200 to $1,200. These figures vary based on specific characteristics of your installation, such as material, the location of your home, type, size, number of windows and more.
Whether or not you want energy-efficient windows is another factor that will determine the cost. These will usually cost more than other windows, but on the other hand, you can save about $356 a year on your energy bills in St. Marys.
We recommend requesting free quotes from multiple window companies to find the one that works best for you.
What Services do Window Installers Offer?
In regard to window installations, there are typically two types that your provider will have: full-frame and pocket installations.
Full-frame installations require 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 significant deterioration. Full-frame installations are more comprehensive and will increase overall costs. Pocket installations are on the simpler end and won’t cost as much because they involve simply replacing the window within its existing frame. But if the frame has any damage or deterioration, you may have to get a full-frame installation instead.
If you’re still trying to decide which type of installation to get, you can consult with your installer and get their recommendation. The choice mostly depends on the age of your window frames and if there’s any damage.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
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
How We Choose the Best Window Installers in St. Marys
EcoWatch reviews are different from most reviews, as we examine these companies through a sustainability lens. Along with energy efficiency, we evaluated several window installers in St. Marys and ranked them using the following methodology:
Service Area
This one is pretty self-explanatory, but we’ve chosen to highlight window installation companies that serve St. Marys so you can find the best window installation company near you.
Work Quality
When picking new windows, the quality and breadth of services can often play just as important of a role in insulation and performance as the brand of window you choose. We do give window installers higher marks if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Another self-explanatory yet very important review factor is customer feedback. If most customers don’t have positive feedback about their service from a certain window installation company, it won’t be featured on EcoWatch.
Cost
This one is a give-and-take: similar to other services, cheap window installers won’t always provide the highest quality service. Still, we want to ensure we’re highlighting companies that offer 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 with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to St. Marys’s climate, homeowners will want to mitigate low efficiency, water damage and rot. We factored in local experience to reflect the ability of St. Marys window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
St. Marys, GA Window Replacement FAQs
What is the average cost to install windows?
The typical cost to replace a window can range between $450 and $650. There are several factors that affect how much it costs, which include local labor costs, styles and sizes of windows, how energy-efficient the windows are, the number of windows, your property’s location and the materials used in designing the windows.
Which kind of window should I get?
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.
What services do window installation companies offer?
Window installation professionals travel to your property to remove your old windows and replace them with new ones. Some providers install products distributed by other companies, whereas others install their own windows. The installer will also clean up after the installation.
Should I replace all my windows at the same time?
If you want to get more efficient windows and save money on your energy bills, replacing all the windows at the same time is the only way to gain that benefit. On the other hand, if you have only one or two windows that are broken or drafty, you can replace just those.