We may be compensated if you purchase through links on our website. Our Reviews Team is committed to delivering honest, objective, and independent reviews on home products and services. More
New window replacement installed in a home

Best Window Replacement Companies in Portland, ME

Get matched with a top local pro
Join the 6,755 people who have received a free, no-obligation quote in the last 30 days
  1. Home
  2. Local Pros
  3. Window Replacement
  4. ME
  5. Portland
Written By Max Peterson|Last Updated: April 18, 2024

Replacement windows can defend your home from drafts and moisture problems, enhance its energy efficiency, and provide it with extra charm. A skilled window replacement company can help you get the most value from your new windows, so you can increase their lifespan.

Top Pick
4.7
  • Full-service installation
  • Large window selection
  • Nearly 30 years of experience
Best Financing
4.4
  • Full-service installation
  • In-house, U.S.-made products
  • More than 70 years of experience
Most Customizable
4.3
  • Full-service remodeling
  • 96% satisfaction rate
  • More than 30 years of experience

Top 10 Portland Window Installation Companies

By choosing one of these renowned companies for window replacement in Portland, you'll enjoy your new windows in no time.

Portland residents can trust the This Old House Reviews Team to provide relevant and up-to-date window replacement company recommendations in their area. To determine which installers are the best, we focus on these five criteria:

  • Product quality
  • Customer reviews and recommendations
  • Energy-efficiency guarantees
  • Professional experience and licensure
  • Services and warranties
Window World of Southern Maine Logo

Window World of Southern Maine

GET QUOTE
4.4/5
Based on 87 customer reviews.

Services Offered

Double-HungGlass DoorsWindow Replacement/installationBay Windows

Highlights

  • Free assessment
  • Timely service
  • Price transparency
2 Karen Dr Unit 5, Westbrook, ME 207-747-5117 windowworldofmaine.com
Pella Windows & Doors of Scarborough Logo

Pella Windows & Doors of Scarborough

4.5/5
Based on 177 customer reviews.

Services Offered

Double-HungWindow Replacement/installationGlass DoorsBay Windows

Highlights

  • Educational website
  • Free assessment
  • Price transparency
400 Expedition Dr Suite B, Scarborough, ME 207-253-1856 pellabranch.com
A-BEST Window Logo

A-BEST Window

4.3/5
Based on 49 customer reviews.

Services Offered

Window Replacement/installationEnergy-Efficient Options

Highlights

  • Price transparency
  • Good customer service
  • Free assessment
1199 Broadway, South Portland, ME 207-799-6771 abestwindow.com
Paradigm Windows Logo

Paradigm Windows

4.1/5
Based on 53 customer reviews.

Services Offered

Bay WindowsGlass DoorsVinyl FramesDouble-HungWindow Replacement/installation

Highlights

  • Free assessment
  • Educational website
  • Price transparency
Portland, ME, ME 877-994-6369 paradigmwindows.com
Midcoast Glass & Windows Logo

Midcoast Glass & Windows

4.6/5
Based on 34 customer reviews.

Services Offered

Bay WindowsVinyl FramesGlass ShowersGlass RepairWindow Replacement/installationStorm/impact WindowsGlass DoorsEnergy-Efficient Options

Highlights

  • Good customer service
  • Free assessment
  • Price transparency
9 Monument Pl #1, Topsham, ME 207-725-2264 midcoastglassmaine.com
Jr's Glass & Windows Logo

Jr's Glass & Windows

4.5/5
Based on 24 customer reviews.

Services Offered

Window Replacement/installationGlass ShowersCustom Glass

Highlights

  • Good customer service
  • Free assessment
969 Lisbon St, Lewiston, ME 207-504-4082 jrsglassandwindows.com
Glass Unlimited Logo

Glass Unlimited

4.2/5
Based on 15 customer reviews.

Services Offered

Energy-Efficient OptionsMirrorsWood FramesWindow Replacement/installationGlass DoorsGlass ShowersCustom Glass

Highlights

  • Price transparency
  • Free assessment
  • Good customer service
1213 Post Rd, Wells, ME 207-646-8268 glassunlimitedme.com
Broken Glass Company Logo

Broken Glass Company

4.4/5
Based on 43 customer reviews.

Services Offered

Glass ShowersGlass DoorsCustom GlassWindow Replacement/installationSkylightsGlass Repair

Highlights

  • Educational website
  • Good customer service
223 Post Rd, Wells, ME 207-216-9931 brokenglassco.com
Great Bay Roofing & Exteriors Logo

Great Bay Roofing & Exteriors

4.7/5
Based on 20 customer reviews.

Services Offered

SkylightsBay WindowsWindow Replacement/installation

Highlights

  • Good customer service
  • Price transparency
  • Free assessment
12 N Main St, Rochester, NH 603-748-7254 greatbayroofing.com

More Local Window Companies

Portland Glass of Dover

User Reviews: 4.5/5 

119 New Rochester Rd
Dover, NH 03820

Interstate Glass & Mirror Inc

User Reviews: 4.4/5 

228 NH-108
Somersworth, NH 03878

Glass Routes Co

User Reviews: 4.6/5 

181 Littleworth Rd
Madbury, NH 03823

Southers Construction

User Reviews: 4.4/5 

12 Crosby Rd
Dover, NH 03820

Pella Windows & Doors of Newington

User Reviews: 4.5/5 

25 Fox Run Rd Suite 2
Newington, NH 03801

Clearview Sunroom & Window LLC

User Reviews: 4.4/5 

1037 Calef Hwy
Barrington, NH 03825

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

New window replacement installed in a home

Get Your Window Replacement Project Quote Today

Get matched with a top local pro

Please enter a valid 5-digit zip code!

Facts about Portland
Annual Energy Efficient Windows Savings:$396
Average Max Temp:52°F
Average Min Temp:39°F
Average Daily Sunlight:52%
Average Annual Snowfall:75.1"
Average Monthly Precipitation:4.01"

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 Portland

Each window provider has unique offerings and approaches. To ease the company search, keep these factors in mind:

Window Cost by Type

When it comes to upgrading your windows, value is king. Each window you purchase should offer maximum durability at an affordable price point. Choosing cheap windows could actually increase your overall cost, due to their reduced lifespan and more intensive maintenance needs. The material, size, and style of your replacement windows have the greatest impact on your final cost. Single-hung windows often cost less due to their straightforward style and simple mechanisms, while new skylights cost more to prepare for and install. It's wise to consult a trusted window installer to decide on 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
Arched$226-$1386
Awning$327-$910
Bay$753-$5588
Custom$335-$931
Casement$260-$1511
Double-hung$121-$786
Egress$223-$558
Glass Block$44-$565
Picture$196-$1448
Single-hung$88-$1490
Skylight$111-$1345
Sliding$256-$1304
Storm$52-$368
Transom$273-$571

Window Material Cost

You'll also need to select a window material. Homeowners usually choose a material based on aesthetic preferences, the local climate and energy efficiency objectives. Aluminum windows are perfect for sleek, modern designs, but they cost more up-front. Wood windows cost less up-front, but you'll need to invest in regular maintenance to prevent the frame from wear and warping. Vinyl is readily available and tends to cost less, but don't underestimate its strong durability and low maintenance needs.

Window TypesAverage Cost
Aluminum$52-$1490
Composite$538-$1208
Fiberglass$88-$753
Vinyl$181-$1676
Wood$269-$1511

Other Window Replacement Costs

Your contractor will factor the price for your windows and the value of their services into its total estimate. Make sure to factor in the cost of labor, warranties, and any other supplemental fees that your project may require.

Experience and Training

The longer a window company has been operating, the better its workmanship will likely be. Speak with a company representative to learn more about its guarantees, experience, and public and private credentials. Company websites often keep photo galleries demonstrating previous work technicians have done.

Licensing and Credentials

In Maine, it's up to cities to determine whether window installation companies need licenses. Even building codes are locally-managed to an extent.

Once you choose an installer, it must provide you a written contract to sign if the job costs over $3,000. This contract will include a clause prohibiting you from paying more than a third of the material costs upfront.

When choosing a company for your window needs, check what professional memberships and accreditations it has. Certificates from the American Window and Door Institute or Fenestration and Glazing Industry Alliance are among the most widely recognized in the industry. You should also ask for proof of insurance and multiple customer references.

Types of Windows Offered

No two window companies offer the same window types and materials. Find one that specializes in the type you want for your home.

Equally important to your desired windows' shape is their framing. Ask your window provider if it offers the frame material you want, such as fiberglass, aluminum, composite, vinyl, or wood.

Customer Feedback

Reading other customers' stories is an excellent way to screen different window companies. Trustworthy sources for customer reviews include Trustpilot, the BBB, and Yelp Referrals can also help you in your company search. Ask each company you're interested in for a list of references, and talk to family and friends about who they use for window installations.


Ready to Get a Quote on Your Window Project?

Get matched with a top local pro

Please enter a valid 5-digit zip code!

Frequently Asked Questions About Window Replacement in Portland

What are the benefits of hiring a window installer?

Replacing your windows is a big purchase that greatly impacts your home's livability and energy efficiency. Hiring a reputable window contractor to supervise your project ensures your windows will be the right size, perform optimally, and be well-sealed. Companies also typically include a guarantee that covers required maintenance and most needed fixes.

What should I do if a window is molding or has rot?

Rot tend to set in due to moisture issues or water damage. Fortunately, you might not need to replace your windows to solve this troublesome and unsightly issue. A professional can get rid of the rot or mold, restore the affected area, and reestablish the tight seal your windows need to function at their best.

Do window installers also work with blinds and coverings?

Whether a company can sell and install blinds ultimately depends on your state's licensing requirements and their own preferences. Many jurisdictions require window covering installers to get a unique license, and not every installer will carry one. If you'd like blinds with your new windows, ask a company representative if its crews can handle the measuring, cutting, and mounting. If a company doesn't work with blinds, they could recommend another company or subcontract the work.

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

Sources

Energy Star