20 Best Window Companies in German Flatts, NY (2025 Reviews)
When it’s time to replace your windows, our reviews of the top window installation companies can help you find the provider for you.
We analyzed all the top-rated window companies in German Flatts 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
Although renewable energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your house’s efficiency can also have a big impact on home energy conservation. Poor windows can make your AC or heater work extra hard in the summer or winter.
Replacement windows improve your home’s insulation, not only making you more comfortable during the summer and winter, but also saving you money and helping the environment.
So if you’re building a new home, renovating or changing out old windows in German Flatts, this is the best place to get started.
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 Energy-Efficient Features
DaBella
- Great warranty
- Friendly sales representatives
- Offers good financing options
Best Window Installation & Replacement Companies in German Flatts
The EcoWatch team assessed dozens of companies that serve the German Flatts area to find the top window installation companies that fit our standards. We assessed the installers on energy-efficient offerings, customer service, local experience, price, coverage area 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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has been in business since 1995 and currently services nearly every state except Mississippi and West Virginia.
It has established itself as a company 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 WindowsThere are a wide range of window types that Renewal by Andersen offers, some of which are Energy Star products. 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 German Flatts?Andersen does not detail 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. You can inquire about a free quote on its website for more information about the cost.

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 been in business since 1995 and currently services 200 locations nationwide.
It has established itself as a company 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 WindowsThere are a wide range of window types that Window World offers, some of which are Energy Star products. 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 German Flatts?Window World does not detail prices on its website, but it's known for offering some of the most affordable window installations around. You can inquire about a free quote on its website for more information about the cost.
We’ve recommended providers with shining reputations, but note that some national companies have independently owned locations in German Flatts, so your service may depend on your local crew. We have tried to be unbiased and transparent by including pros and cons for every company reviewed.
More Window Companies in German Flatts
Renewal by Andersen of Eastern NY
Schenectady, NY
Educational Website
Good Customer Service
Free assessment
Services Offered
Double-Hung
Window Replacement/Installation
Energy-Efficient Options
Custom Window Designs
Glass Doors
Bay Windows
Skylights
518Renovations
Gloversville, NY
Educational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Glass Doctor of Syracuse, NY
Syracuse, NY
Educational Website
Price Transparency
Services Offered
Window Repair
Mirrors
Custom Glass
Window Replacement/Installation
Glass Showers
Energy-Efficient Options
Glass Repair
Universal Windows Direct of Syracuse
Syracuse, NY
Free assessment
Good Customer Service
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Glass Doors
Double-Hung
Bay Windows
Energy-Efficient Options
Window King Of Saratoga
Saratoga Springs, NY
Good Customer Service
Educational Website
Free assessment
Timely Service
Price Transparency
Services Offered
Window Replacement/Installation
Glass Doors
Ace Glass Company
Oneonta, NY
Educational Website
Good Customer Service
Services Offered
Glass Repair
Window Replacement/Installation
Glass Doors
Madison Window & Door
Bainbridge, NY
Price Transparency
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Wood Frames
Vinyl Frames
Bay Windows
Double-Hung
Custom Window Designs
JK General Contracting
Syracuse, NY
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
John's Mobile Home Parts & Accessories
Oriskany Falls, NY
Educational Website
Services Offered
Glass Showers
Window Replacement/Installation
Energy Savers Inc.
East Syracuse, NY
Educational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Double-Hung
Glass Doors
Custom Window Designs
Window Replacement/Installation
Energy-Efficient Options
Sahl's Glass & Glazing Inc.
Whitesboro, NY
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Glass Showers
C. Michael Exteriors, Inc.
Syracuse, NY
Price Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Glass Doors
Energy-Efficient Options
Window Replacement/Installation
Double-Hung
Glass Showers
Wood Frames
Bay Windows
Erie Materials
Albany, NY
Price Transparency
Services Offered
Skylights
Vinyl Frames
Glass Doors
Window Replacement/Installation
Mirrors
Trade-Mark Construction
Syracuse, NY
Good Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Pella Windows & Doors of Syracuse
Syracuse, NY
Good Customer Service
Free assessment
Educational Website
Services Offered
Bay Windows
Window Replacement/Installation
Double-Hung
Glass Doors
RM Pena
Burnt Hills, NY
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Wood Frames
Energy-Efficient Options
Vinyl Frames
Comfort Windows & Doors
Albany, NY
Free assessment
Good Customer Service
Educational Website
Services Offered
Vinyl Frames
Double-Hung
Glass Showers
Bay Windows
Glass Doors
Energy-Efficient Options
Wood Frames
Window Replacement/Installation
Custom Window Designs
Window Town of Utica
Utica, NY
Educational Website
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Glass Doors
Vinyl Frames
Energy-Efficient Options
Bay Windows
Double-Hung
Window Town of Capital District
Schenectady, NY
Free assessment
Educational Website
Services Offered
Glass Doors
Energy-Efficient Options
Double-Hung
Bay Windows
Window Replacement/Installation
Window World of the Capital District
Albany, NY
Good Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Glass Doors
Bay Windows
Window Replacement/Installation
Double-Hung
Calculate how much you can expect to pay for window installation and replacement in German Flatts, NY 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 German Flatts Saves You Money
By switching to energy-efficient windows, you can benefit in several ways, such as:
- Save money on power bills: Once you install 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 valuables: Many Energy Star certified windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
- Protect your investment: If your home is on the older side, your windows are most likely outdated. Updating your windows can make your home more comfortable and also help increase the value of your house if you decide to sell.
- Decrease your carbon footprint: Because energy-efficient windows improve the insulation in your home, you can reduce your indirect greenhouse gas emissions by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in German Flatts
When looking into window installation, each company offers different services and prices. Let’s go over some typical costs and services.
How Much Do New Windows Cost?
Generally, homeowners in German Flatts can expect that most window installations will range from $250 to $1,200, with the average cost at around $600. Costs will differ significantly based on the current condition of your home, your location, the number of windows you need and the quality of your products. A lot of window companies also offer door installations and other add-ons like baths, coating, shutters and more. These extra services will increase your overall project costs.
With windows, efficiency is the most important factor for most homeowners. Efficient windows may cost more off the bat, but by increasing the efficiency of your home — especially during the winter — they can give you many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save German Flatts homeowners $443+ per year after replacing single-pane windows.
Asking for free quotes from several installers is the best way to figure out which one will work best for your budget.
What Services do Window Installers Offer?
There are typically two kinds of window replacement services: full-frame and pocket installations.
A full-frame installation replaces the total window, including the windowsill, frame, trim and the window panes. Because this type of installation is more involved, it will cost more than a pocket installation. Pocket installations are simpler and won’t carry as large a bill, as they entail merely replacing the window within its existing frame. But if the frame has any damage, you may have to get a full-frame installation instead.
If you’re unsure which window installation service you need, your installer should be able to assist you. Typically, the choice is based on factors like the age and condition of the home, the type of building material, budget and time restrictions.
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 Energy-Efficient Features
DaBella
- Great warranty
- Friendly sales representatives
- Offers good financing options
How We Choose the Best Window Installers in German Flatts
EcoWatch reviews are different from other reviews since we look at these companies through a sustainability lens. We have assessed the best window installation companies in German Flatts primarily based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows have been shown to cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Since this is a guide for German Flatts, we gave more points to companies that provide services to the city. There are certainly reputable providers that didn’t make the cut because of the low odds that they would serve the average homeowner in German Flatts.
Work Quality
We’re certain that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each installer included in our guide to ensure its technicians are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent customer feedback to find the companies with the most consistent customer satisfaction. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across nearly every category, including professionalism, cost, quality of installation, quality of parts, warranty and more.
Cost
This one is a give-and-take: similar to most services, cheap window companies may not provide the highest quality service. On the other hand, we want to make sure we’re highlighting companies that offer a range of price and financing options so they’re accessible to most homeowners.
Warranty
As discussed, windows are a considerable investment, so you’ll want to be certain that investment is well protected. Window installation companies with 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 installers that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.
German Flatts, NY Window Replacement FAQs
What is the average cost to replace windows?
The national average cost to replace a single window is around $600 but can range from $200 to $1,200, based on several factors. The price is usually influenced by the location of your property, the type and material of the window and the size of the window. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
What are the most common types of replacement windows?
There are several different kinds of windows you can get for your house, such as picture windows, double-hung and single-hung windows, slider windows, bay windows, transom windows, awning windows and casement windows.
When do I have to use a window installation company?
You should hire a window installation company whenever you need new windows. Installing windows is a complicated process that can take a lot of time, so it’s best handled by the professionals.
What time of year should I replace my windows?
Replacement windows can be installed during any season, but autumn might be best. No matter when you install them, the contractors will take steps to make sure that too much hot or cold air doesn’t get into your home, so the temperature outside isn’t necessarily a big factor. Most importantly, the weather should be dry.



