20 Best Window Companies in Fitchburg, MA (2025 Reviews)
Are you thinking of replacing your windows? Our list of the best window installation companies can help you choose the right one for you.
We analyzed all the top-rated window companies in Fitchburg 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 installation companies in Fitchburg 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 realize. When it’s the middle of winter, your outdated and drafty windows could be making your home more difficult to heat and more uncomfortable for you.
Replacement windows improve the insulation in your home, not only making you more comfortable during extreme temperatures, but also saving you money and helping the environment.
So if you’re building a new home, renovating or changing out old windows in Fitchburg, you’ve found the best place to get started.
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 Fitchburg
The EcoWatch team evaluated many window providers across Fitchburg to narrow our list down to the top ones. The companies mentioned in this article scored the best in our review categories, such as energy-efficient offerings, availability, price, customer service, local expertise 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 provides windows expertise in Fitchburg. Window World has around 27 years of experience in the industry, and it currently provides services to 200 locations nationwide. Many positive reviews on customer review websites back the provider's reputation.
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 WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World’s offerings are Energy Star certified, so make sure you mention that you’re interested in Energy Star windows when inquiring.
How much does Window World cost in Fitchburg?Although pricing information is not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. For more accurate information on the cost, 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 provides the best availability in Fitchburg. Andersen has around 27 years of experience in the industry, and it currently provides services to nearly every state except Mississippi and West Virginia. Many positive reviews on customer review websites back the provider's reputation.
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 WindowsA 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. Not all of Andersen’s offerings are Energy Star certified, so make sure you mention that you’re interested in Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Fitchburg?Although pricing information is not readily available on Andersen’s website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more accurate information on the cost, 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 provides the best window installation for businesses in Fitchburg. Aeroseal has around 23 years of experience in the industry, and it currently provides services to 13 states and Washington D.C. Many positive reviews on customer review websites back the provider's reputation.
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 WindowsThe 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. Not all of Aeroseal’s offerings are Energy Star certified, so make sure you mention that you’re interested in Energy Star windows when inquiring.
How much does Aeroseal Windows cost in Fitchburg?Although pricing information is not readily available on Aeroseal’s website, it provides high-quality windows at a competitive price point. For more accurate information on the cost, 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 provides the best residential windows in Fitchburg. Window Nation has around 16 years of experience in the industry, and it currently provides services to residents within 75 miles of its showrooms, which are in 13 states. Many positive reviews on customer review websites back the provider's reputation.
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 company 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 offerings are Energy Star certified, so make sure you mention that you’re interested in Energy Star windows when inquiring.
How much does Window Nation cost in Fitchburg?Although pricing information is not readily available on Window Nation’s website, 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 accurate information on the cost, you can ask for a quote from the company.
We have tried to be unbiased and transparent by mentioning pros and cons for every installer. Additionally, any partnerships do not affect our reviews.
More Window Companies in Fitchburg
Renewal by Andersen Window Replacement
Smithfield, RIGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Vinyl Frames
Custom Window Designs
Glass Doors
Bay Windows
Energy-Efficient Options
Window Replacement/Installation
Double-Hung
Power Home Remodeling
Marlborough, MAGood Customer Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
DaBella
Salem, NHGood Customer Service
Timely Service
Services Offered
Double-Hung
Vinyl Frames
Glass Doors
Window Replacement/Installation
Window Nation
Norwood, MAPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Vinyl Frames
Glass Doors
Custom Window Designs
Energy-Efficient Options
Bay Windows
Double-Hung
H & J Homes Solutions LLC
Shrewsbury, MAGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Closet & Storage Systems
Auburn, MAGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Mirrors
Glass Showers
Rogers Insulation Specialists
Framingham, MAPrice Transparency
Good Customer Service
Timely Service
Free assessment
Services Offered
Triple Pane Glass
Window Replacement/Installation
Energy-Efficient Options
Manny's Roofing
Pelham, NHTimely Service
Good Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Skylights
Roof Windows
Pro Entry Installs LLC
Salem, NHTimely Service
Educational Website
Price Transparency
Good Customer Service
Services Offered
Bay Windows
Glass Doors
Window Replacement/Installation
Double-Hung
Mighty Dog Roofing Metro West Boston
Needham, MAFree assessment
Timely Service
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Window Repair
Skylights
Affordable Vinyl Windows & Siding Inc
Auburn, NHPrice Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Vinyl Frames
Geno the Handyman
Stoneham, MATimely Service
Free assessment
Services Offered
Window Repair
Window Replacement/Installation
Energy-Efficient Options
Kubala Home Improvement
Ludlow, MAEducational Website
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Glass Doors
First Choice Construction, LLC
Beverly, MAGood Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
N.E. Building & Restoration LLC
Attleboro, MAPrice Transparency
Good Customer Service
Free assessment
Services Offered
Vinyl Frames
Window Replacement/Installation
Budget Blinds of Enfield and Hartford
Somers, CTEducational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Custom Window Designs
Window Replacement/Installation
Couto Construction
Warwick, RIGood Customer Service
Free assessment
Timely Service
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Window Repair
Country Glass
Hudson, MAFree assessment
Price Transparency
Services Offered
Custom Glass
Mirrors
Window Replacement/Installation
Glass Showers
Energy-Efficient Options
CORE Remodeling Services, Inc.
Worcester, MAEducational Website
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Window World of Boston
Shrewsbury, MAFree assessment
Price Transparency
Timely Service
Good Customer Service
Educational Website
Services Offered
Bay Windows
Energy-Efficient Options
Glass Doors
Double-Hung
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in Fitchburg, MA 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 Fitchburg Saves You Money
By upgrading to energy-efficient windows, you can enjoy several benefits, such as:
- Save on electricity bills: Because energy-efficient windows lower how much energy you need to heat or cool your home, the switch can help you save about $482 annually on your energy bills in Fitchburg.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
- Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes tend to have windows that are outdated, drafty or potentially even damaged in some way. Updating your windows could help raise the value of your property if you decide to sell.
- Decrease your carbon footprint: You can reduce your carbon footprint by about 12% once you install Energy Star certified windows. In Fitchburg, that’s about 139 pounds per year on average.
Estimated Cost of Window Replacement in Fitchburg
Each window replacement company offers varying services and has different costs based on a few factors.
How Much Do New Windows Cost?
Typically, Fitchburg homeowners can expect their window installations to range from $250 to $1,200. The average cost sits at approximately $600. But costs will vary significantly depending on your location, the quality of your products, the number of windows you need and the current condition of your home. A lot of window companies also offer replacement door installations and other add-ons like shutters, coating, baths and more. Additional services will increase overall project costs.
It’s important to remember that windows with the best efficiency may cost more upfront but can save you hundreds of dollars via returns on your energy bills. Investing in Energy Star certified windows can save Fitchburg homeowners $482+ a year when replacing single-pane windows.
Something else that affects the overall cost is the material of the frame you select. Aluminum frames are typically the least pricey and are sturdy and light, but they offer poor insulation. On the other hand, wood frames are the most expensive because 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?
When considering window replacements, there are typically two kinds that your provider will have: full-frame and pocket installations.
Full-frame installations entail replacing the complete window, including the frame, trim and sill. Full-frame installations are necessary when you want to change the style of your windows or your window has considerable damage or rot. These installations are more involved and will increase 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 kind of installment if you have any pre-existing rot or water damage.
Your window installer can help you choose which type of installation you need.
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 Fitchburg
The EcoWatch Reviews team differs from other reviewers because we evaluate these companies through a sustainability lens. Along with energy efficiency, we evaluated window companies all across the state and assigned rankings based on the following methodology:
Service Area
This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve a wide variety of states and cities so you can find a quality window installation company near you.
Work Quality
When selecting new windows, the quality and variety of services can often play just as important of a role in insulation and performance as the brand of window you opt for. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don’t have good feedback about their experience with a certain installer, 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 gave higher scores 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
Due to Fitchburg’s climate, homeowners need to be wary of low efficiency, water damage and rot. We factored in local experience to reflect the ability of Fitchburg window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Fitchburg, MA Window Replacement FAQs
What is the average cost to install windows?
The national average cost of replacing a single window is about $600 but can range from $200 to $1,200, based on several factors. The price is often dependent on the size of the window, the type and material of the window and the location of your property. Also, keep in mind that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.
What kind of window is the most energy-efficient?
Generally, double-pane windows are more efficient than single-pane windows and windows that do not 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 with the blue Energy Star certification — they’re certified energy-efficient by the U.S. Department of Energy.
What services do window replacement companies do?
Window installers visit your house to remove your old windows and replace them with new ones. Some companies install products sold by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation.
Should I replace my windows all at the same time?
If your windows are more than 20 years old, it’s most likely time to replace all of them. By that point, they are usually less efficient, leakier and/or more damaged than new windows. Replacing your windows all at once will involve less paperwork and less stress.