20 Best Window Companies in Griswold, CT (2025 Reviews)
Thinking about upgrading 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 Griswold 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 home’s efficiency can also have a considerable impact on home energy conservation. During the winter months, the last thing you want is your heat to leak out of your outdated windows.
Fortunately, saving you money with efficient windows also aligns with our goals of conserving energy and the resources it takes to make it.
Because windows have such a great impact on your home, selecting the right company for you is a big choice to make. That’s why the EcoWatch team has made 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 Griswold
The EcoWatch Reviews team evaluated many window providers in Griswold to find the best ones for our readers. We assessed the companies on their energy-efficient offerings, coverage area, price, local experience, 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. Window World has been in the window business for around 27 years.
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 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 ask your Window World representative when inquiring about services.
How much does Window World cost in Griswold?Pricing details are not available on Window World’s website because the cost of window installment differs based on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. If you’d like more accurate pricing information, you can request a quote on the company’s website.

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 been in the window business for around 27 years.
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 WindowsRenewal by Andersen 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 ask your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Griswold?Pricing details are not available on Andersen’s website because the cost of window installment differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. If you’d like more accurate pricing information, you can request a quote on the company’s website.

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 been in the window business for around 23 years.
Aeroseal may be the company for you if you're looking for one that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows 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 ask your Aeroseal representative when inquiring about services.
How much does Aeroseal Windows cost in Griswold?Pricing details are not available on Aeroseal’s website because the cost of window installment differs based on how many and what type(s) of windows you need. However, it provides high-quality windows at a competitive price point. If you’d like more accurate pricing information, you can request a quote on the company’s website.

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. Window Nation has been in the window business for around 16 years.
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 WindowsWindow Nation 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 ask your Window Nation representative when inquiring about services.
How much does Window Nation cost in Griswold?Pricing details are not available on Window Nation’s website because the cost of window installment differs based on how many and what type(s) of windows you need. However, 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 request a quote on the company’s website.
We’ve recommended providers with good reputations, but note that some national companies have independently owned locations in Griswold, so the quality of service may differ depending on your local crew. We have tried to remain unbiased and transparent by mentioning pros and cons for each company reviewed.
More Window Companies in Griswold
Renewal by Andersen Window Replacement
Smithfield, RIGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Vinyl Frames
Window Replacement/Installation
Double-Hung
Custom Window Designs
Energy-Efficient Options
Bay Windows
Glass Doors
Champion Replacement Windows of Boston
East Taunton, MAFree assessment
Good Customer Service
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Bay Windows
Double-Hung
Power Home Remodeling
Marlborough, MAGood Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Window Nation
Wallingford, CTPrice Transparency
Educational Website
Free assessment
Services Offered
Double-Hung
Bay Windows
Custom Window Designs
Energy-Efficient Options
Glass Doors
Window Replacement/Installation
DaBella
Westborough, MATransferable warranties
Timely Service
Good Customer Service
family_owned
Alside® vinyl windows
Services Offered
Double-Hung
Vinyl Frames
Window Replacement/Installation
Glass Doors
Calvary Remodeling
Mystic, CTPrice Transparency
Good Customer Service
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Couto Construction
Warwick, RIEducational Website
Timely Service
Price Transparency
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Window Repair
Energy-Efficient Options
Big Dawg Home Improvements
South Windsor, CTPrice Transparency
Free assessment
Timely Service
Good Customer Service
Services Offered
Window Replacement/Installation
Skylights
Window Repair
Energy-Efficient Options
Budget Blinds of Enfield and Hartford
Somers, CTFree assessment
Price Transparency
Educational Website
Good Customer Service
Services Offered
Custom Window Designs
Window Replacement/Installation
N.E. Building & Restoration LLC
Attleboro, MAPrice Transparency
Free assessment
Good Customer Service
Services Offered
Vinyl Frames
Window Replacement/Installation
Paramount Gallery
West Hartford, CTGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
Custom Window Designs
Energy-Efficient Options
Closet & Storage Systems
Auburn, MAEducational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Glass Showers
Window Replacement/Installation
Mirrors
H & J Homes Solutions LLC
Shrewsbury, MAPrice Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Kubala Home Improvement
Ludlow, MAFree assessment
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Glass Doors
ZN Construction
Canton, CTFree assessment
Educational Website
Price Transparency
Good Customer Service
Timely Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Rogers Insulation Specialists
Framingham, MAFree assessment
Good Customer Service
Price Transparency
Timely Service
Services Offered
Triple Pane Glass
Energy-Efficient Options
Window Replacement/Installation
Mighty Dog Roofing Metro West Boston
Needham, MAGood Customer Service
Price Transparency
Free assessment
Timely Service
Services Offered
Window Repair
Skylights
Window Replacement/Installation
Venture Window LLC
Cranston, RIFree assessment
Services Offered
Glass Doors
Double-Hung
Vinyl Frames
Window Replacement/Installation
Skylights
Custom Window Designs
CARRIER ROOFING SIDING & WINDOWS
Webster, MAGood Customer Service
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
United Better Homes - Roofing, Solar & Windows
Central Falls, RIPrice Transparency
Educational Website
Free assessment
Good Customer Service
Timely Service
Services Offered
Window Replacement/Installation
Glass Doors
Storm/Impact Windows
Double-Hung
Vinyl Frames
Custom Window Designs
Bay Windows
Calculate how much you can expect to pay for window installation and replacement in Griswold, CT 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 Griswold Saves You Money
Energy-efficient windows can benefit you in several ways. Here are some reasons you may want to think about making the switch:
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out damaging UV rays, reducing fading of your furniture, carpet and other valuables.
- Protect your investment: When your home is on the older side, your windows could also be outdated or leaky. Upgrading your windows is an important part of maintaining your property and its real estate value.
- Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your home, you can cut your carbon footprint by about 12%, according to Energy Star.
- Save on energy bills: According to the Department of Energy, heat gained or lost through windows accounts for about 25-30% of residential energy use. Upgrading to energy-efficient models can help decrease how much energy is used in your home, therefore saving you about 12% more on your bills.
Estimated Cost of Window Replacement in Griswold
Windows come in different styles, shapes and purposes, so costs and services will differ considerably depending on your project. Below, we go over the typical cost and services that you’ll find from window replacement companies.
How Much Do New Windows Cost?
Even though the average cost to install one window is about $600, it can range from $200 to $1,200. Costs will differ significantly based on your location, the quality of your products, the number of windows you need and the current condition of your home. Many window companies also offer replacement door installations and other add-ons like baths, coating, shutters and more. Additional services will increase overall project costs.
With windows, efficiency is one of the most important factors for most homeowners. Windows with higher efficiency may cost more off the bat, but by increasing the efficiency of your home — especially during the summer and winter — they can give you decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Griswold homeowners $424+ each year after replacing single-pane windows.
We recommend getting free quotes from multiple window installation companies to find the right windows and the company that works best for your budget.
What Services do Window Installers Offer?
When considering window replacements, in general there are two kinds that your provider will have: full-frame and pocket installations.
Full-frame installations entail replacing the full window, including the trim, frame and sill. You most likely need a full-frame installation when you want a new style or your window has significant rot. Because these installations are more involved, they will raise the total cost. Pocket installations (also known as retrofits) are when you replace a window without replacing the frame. Pocket installations are on the simpler end and won’t cost as much, but you can’t do this type of installment if you have any pre-existing rot or water damage.
If you’re hiring a reputable window installation company, your company can advise you on the best type for your project. In Griswold, the decision will mostly depend on how much damage there is currently and how old your existing frames are.
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 Griswold
EcoWatch reviews differ from most reviews since we’re examining these companies through a sustainability lens. We have assessed the top window replacement companies in Griswold mostly 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 cut your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
This one is self-explanatory, but we’ve chosen to highlight window installers that serve a wide variety of states and cities so you can find the right window installation company near you.
Work Quality
When it comes to new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the brand you opt for. 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 super important review factor. If the majority of customers don’t have positive feedback about their experience with a certain window installation company, you won’t see it featured on EcoWatch.
Cost
This one is a give-and-take: similar to other 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 variety of price and financing options so they’re accessible to most homeowners.
Warranty
As discussed, windows are a sizable investment, so you’ll want to make sure that investment is well protected. Window installation companies that have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of Griswold’s climate, homeowners will want to mitigate water damage, low efficiency and rot. We factored in local experience to reflect the ability of Griswold window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Griswold, CT Window Replacement FAQs
What is the typical cost to install windows in a home?
The average cost of replacing a single window can range from $450 to $650. There are several factors that affect the price, which include how energy-efficient the windows are, your property’s location, the number of windows, styles and sizes of windows, local labor costs and the materials used in designing the windows.
What are the most common kinds of replacement windows?
There are several different types of windows you can get for your house, including casement windows, slider windows, bay windows, transom windows, awning windows, double-hung and single-hung windows and picture windows.
What do window installers do?
Window installers cover the entire process — from replacing old windows with new ones to cleaning up after the installation. In addition, a lot of companies offer window manufacturing, customization and repairs.
Should I replace all my windows at the same time?
If your windows are greater than 20 years old, you most likely need to replace all of them. At that point, they are typically less efficient, leakier and/or more damaged than new windows. Replacing your windows all at once will involve less paperwork and less stress.