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Best Window Replacement Companies in Fitchburg, MA

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Written By Max Peterson|Last Updated: February 05, 2024

Replacement windows can defend your home from leaks and drafts, increase its energy efficiency, and give it some extra charm. If your windows are deteriorating or damaged, it's probably time to replace them. Hiring a professional window company will help you get a top-quality outcome and help you prevent costly mistakes from attempting to complete the job yourself.

Top Pick
  • Full-service installation
  • Large window selection
  • Nearly 30 years of experience
Best Financing
  • Full-service installation
  • In-house, U.S.-made products
  • More than 70 years of experience
Most Customizable
  • Full-service remodeling
  • 96% satisfaction rate
  • More than 30 years of experience

Top 10 Fitchburg Window Installation Companies

The contractors on this collection will make window replacement in Fitchburg as painless as possible.

The This Old House Reviews Team evaluated scores of window installers in and around Fitchburg. We used the following metrics to determine the best window replacement providers:

  • Professional experience and licensure
  • Energy-efficiency guarantees
  • Services and warranties
  • Product quality
  • Customer reviews and recommendations
Power Home Remodeling Logo

Power Home Remodeling

Based on 38 customer reviews.

Services Offered

Energy-Efficient OptionsWindow Replacement/installation


  • Good customer service
362 Elm St, Marlborough, MA 508-460-1943 powerhrg.com
Window World of Boston Logo

Window World of Boston

Based on 243 customer reviews.

Services Offered

Energy-Efficient OptionsGlass DoorsDouble-HungWindow Replacement/installationBay Windows


  • Price transparency
  • Good customer service
  • Free assessment
1000 Boston Turnpike, Shrewsbury, MA 508-217-9934 windowworldofboston.com
DaBella Logo


Based on 233 customer reviews.

Services Offered

Vinyl FramesGlass DoorsWindow Replacement/installationDouble-Hung


  • Good customer service
  • Timely service
110 Turnpike Rd Suite 108, Westborough, MA 508-594-3633 dabella.us
Solid State Construction Logo

Solid State Construction

Based on 87 customer reviews.

Services Offered

Energy-Efficient OptionsWindow Replacement/installation


  • Free assessment
  • Good customer service
  • Educational website
2 Shaker Rd D203, Shirley, MA 508-715-3615 solidstateconstruction.com
Pella Windows & Doors of Boylston Logo

Pella Windows & Doors of Boylston

Based on 51 customer reviews.

Services Offered

Double-HungWindow Replacement/installationWood FramesGlass Doors


  • Price transparency
  • Good customer service
  • Educational website
280 Shrewsbury St, Boylston, MA 508-842-1112 pellabranch.com
Country Glass Logo

Country Glass

Based on 53 customer reviews.

Services Offered

MirrorsGlass ShowersCustom GlassEnergy-Efficient OptionsWindow Replacement/installation


  • Price transparency
  • Free assessment
78 Cherry St, Hudson, MA 978-562-2332 countryglass.com
12 Penny Exteriors, Inc. Logo

12 Penny Exteriors

Based on 16 customer reviews.

Services Offered

Glass DoorsWindow Replacement/installationVinyl FramesEnergy-Efficient OptionsFiberglass Frames


  • Price transparency
  • Educational website
301 Littleton Rd #989, Westford, MA 978-654-0275 12penny.com
CORE Remodeling Services, Inc. Logo

CORE Remodeling Services

Based on 50 customer reviews.

Services Offered

Window Replacement/installation


  • Educational website
  • Good customer service
  • Price transparency
41 Boylston St, Worcester, MA 888-959-2673 coreremodelingservices.com
Worcester Glass Co. Logo

Worcester Glass Co.

Based on 42 customer reviews.

Services Offered

Glass ShowersMirrorsWindow RepairWindow Replacement/installationCustom Glass


  • Good customer service
  • Educational website
  • Free assessment
376 W Boylston St, Worcester, MA 508-853-6337 worcesterglass.com

More Local Window Companies

Franca Services - Painting & Siding, Decks & Roofing, Windows & Doors

User Reviews: 4.3/5 

44 Bearfoot Rd Suite 100
Northborough, MA 01532

AG Home Improvement Inc

User Reviews: 4.5/5 

93 Boylston Cir
Shrewsbury, MA 01545

Nashua Glass

User Reviews: 4.5/5 

110 Chestnut St
Nashua, NH 03060

H & J Homes Solutions LLC

User Reviews: 4.7/5 

516 Boston Turnpike
Shrewsbury, MA 01545

Tri-State Construction Co

User Reviews: 4.6/5 

5 Brussels St BLDG B
Worcester, MA 01610

O'Sullivan Installs

User Reviews: 4.7/5 

25 Sullivan Rd Unit 5
North Billerica, MA 01862

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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Facts about Fitchburg
Annual Energy Efficient Windows Savings:$482
Average Max Temp:55°F
Average Min Temp:40°F
Average Daily Sunlight:52%
Average Annual Snowfall:65.5"
Average Monthly Precipitation:4.00"

Expert Tips By

This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

How To Choose a Window Company in Fitchburg

Trustworthiness is key when it comes to choosing a window company. However, your chosen company should also match your needs and understand your vision. Think about the following factors during your company search:

Window Cost by Type

When it comes to upgrading your windows, cost-effectiveness is paramount. Each window you buy should provide top-notch durability at a reasonable price point. Choosing cheap windows could actually raise your overall cost, due to their reduced lifespan and more intensive maintenance needs. The style, material, and size of your new windows are the most significant factors in your final cost. Transom windows are inexpensive with their simple size and straightforward form factor, while new skylights cost more to prepare for and install. It's recommended to consult a reliable installer to determine your most suitable options.

To help you form a rough estimate, this table shows the typical cost of the most common residential window types.

Window TypesAverage Cost
Glass Block$44-$568

Window Material Cost

Materials also help determine a window's cost. You might select a material based on your energy efficiency goals, the local climate, and your desired look. For example, wood windows can give your home an organic design without breaking the bank, but you'll have to invest more toward maintenance. Aluminum and composite windows cost more up-front, but they're incredibly durable against the elements, so you'll spend far less on maintenance.

Window TypesAverage Cost

Other Window Replacement Costs

Ask each company you're evaluating about warranty fees, labor costs, and permit fees. This will help you gain a complete understanding of the total costs involved in the project.

Experience and Training

The longer a window installer has been operating, the better its workmanship will likely be. Call a company representative to learn more about its experience, public and private credentials, and guarantees. Company websites often have photo galleries where you can see previous work technicians have done.

Licensing and Credentials

Massachusetts window contractors are considered general contractors and require a Construction Supervisor License (CSL) with a window specialization. CSL applicants must pass an open-book exam and show 36 months of work experience. Once a company has a CSL, it must also register with the Office of Consumer Affairs and Business Regulation as a "home improvement contractor."

Types of Windows Offered

There are a variety of replacement window types you can choose from, and it's crucial to find a company that has expertise with the ones you want. Search a company's website and reviews for any of these types:

  • Awning
  • Bay
  • Bow
  • Casement
  • Crank-out
  • Custom
  • Double- or single-hung
  • Egress
  • Garden
  • Jalousie
  • Picture
  • Sliding
  • Skylight
  • Specialty
  • Storm
  • Transom
  • Vent
Also, check the style of window framing materials a company works with. Each material has varying price points, life spans, and energy performance capabilities. Common materials include vinyl, fiberglass, aluminum, composite and wood.

Customer Feedback

One of the simplest ways to screen a company is to see what other customers have said about their experiences. You can find customer reviews on websites like Trustpilot, Google, the BBB, and Yelp. Ask people you know who have used the company you'd like to hire, and ask a representative for professional references.

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Frequently Asked Questions About Window Replacement in Fitchburg

How much energy and money will I save by upgrading my windows?

In Fitchburg specifically, most homeowners using efficient windows lower their carbon emissions by 140 pounds per year. That amounts to $480 of annual savings.

The U.S. Department of Energy states that 25%–30% of a home's heating and cooling capacity is used to compensate for heat gain and heat loss through windows. By investing in new, more efficient windows, you can enhance your home's energy efficiency and reduce your electricity bills.

What time of year should I replace my windows?

With Fitchburg's freezing and snowy winters, it's best to schedule your window replacement for the spring or summer. You might also choose to replace your windows in the autumn, when costs may be lower.

How important are guarantees and extended support packages?

We strongly recommend choosing a window company that backs their work with a guarantee for your protection. These plans usually cover workmanship errors, manufacturer defects, and material flaws that appear after installation. Verify the warranty details with a window company before signing a contract.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

More Window Resources

National Windows Company Ranking Methodology


Energy Star