20 Best Window Companies in South Portland, ME (2024 Reviews)

Thinking about upgrading your windows? We’ve got you covered in this guide to the top window installation companies.

We analyzed all the top-rated window companies in South Portland and selected the best 20 based on:

  • Customer reviews
  • Window installation expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated May 20, 2024

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

Although eco-friendly energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your house’s energy efficiency can also have a large impact on home energy conservation. Poor windows can decrease your home’s energy efficiency by up to 30%, according to the Department of Energy. In South Portland, that’s around $396 a year that you could save on your electric bills after making the switch.

That’s bad for your wallet and the environment, but one of the best window installation companies can help with that.

Unlike other sites, EcoWatch ranks window installation companies based on energy efficiency while also factoring in cost, customer satisfaction and service area.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house
Buy One Window, Get One 40% OFF
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Window Veteran

Window World

★★★★★
4.5
  • EnergyStar Partner
  • Wide variety of products and services
  • Lifetime Warranty

Best Window Installation & Replacement Companies in South Portland

The EcoWatch Reviews team evaluated dozens of providers that serve the South Portland area to find the best window installation companies by our standards. The providers in this article scored the best in our review categories, which include energy-efficient offerings, customer service, price, availability, local expertise and more.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon 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 industry for about 27 years. Many positive reviews on customer review websites back the provider's reputation.

Window World may be the company for you if you want 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 Windows

There are a wide variety 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 South Portland?

Prices are not available on Window World’s website because the cost of window installment varies greatly depending 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. The best way to know for sure is to ask for a free quote from the company.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon 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 industry for about 27 years. Many positive reviews on customer review websites back the provider's reputation.

Andersen may be the company for you if you want 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 Windows

There are a wide variety 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 South Portland?

Prices are not available on Andersen’s website because the cost of window installment varies greatly depending 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. The best way to know for sure is to ask for a free quote from the company.

We have tried to stay unbiased and transparent by listing pros and cons for every installer. Additionally, any partnerships do not influence our reviews.

More Window Companies in South Portland

Renewal by Andersen Window Replacement

Saco, ME
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Metal Frames
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Custom Window Designs
  • Service icon Bay Windows

Website: https://windowsdoorsportland.com/
Address: 66 Industrial Park Rd, Saco, ME 04072
Phone: (207) 358-6094

Window World of Southern Maine

Westbrook, ME
4.2
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Doors
  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Window Replacement/Installation

Website: https://www.windowworldofmaine.com/
Address: 2 Karen Dr Unit 5, Westbrook, ME 04092
Phone: (207) 747-5117

Pella Windows & Doors of Scarborough

Scarborough, ME
4.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors

Website: https://www.pellabranch.com/new-england/showrooms/scarborough/
Address: 400 Expedition Dr Suite B, Scarborough, ME 04074
Phone: (207) 253-1856

A-BEST Window

South Portland, ME
4.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

Website: http://www.abestwindow.com/
Address: 1199 Broadway, South Portland, ME 04106
Phone: (207) 799-6771

Paradigm Windows

ME, ME
3.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Bay Windows
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Double-Hung
  • Service icon Window Replacement/Installation

Website: https://paradigmwindows.com/
Address: Portland, ME
Phone: (877) 994-6369

Quinn's Installation Contractor

Scarborough, ME
2.8
★★★★★
  • Pros icon Free assessment

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: http://www.quinnscontractors.com/
Address: 162 Gorham Rd, Scarborough, ME 04074
Phone: (207) 883-6086

Maine Windows and Doors

Portland, ME
2.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Screen Repair
  • Service icon Double-Hung
  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation

Website: http://www.mainewindowsanddoors.com/
Address: 306 Warren Ave Suite 2A, Portland, ME 04103
Phone: (207) 712-0133

Marvin Design Gallery by Eldredge

Portland, ME
2.7
★★★★★

    Services Offered

    • Service icon Glass Showers
    • Service icon Skylights
    • Service icon Window Replacement/Installation

    Website: http://www.marvinbyeldredge.com/
    Address: 317 Marginal Way, Portland, ME 04101
    Phone: (207) 772-2003

    Midcoast Glass & Windows

    Topsham, ME
    4.9
    ★★★★★
    • Pros icon Price Transparency
    • Pros icon Free assessment
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Glass Showers
    • Service icon Window Replacement/Installation
    • Service icon Bay Windows
    • Service icon Vinyl Frames
    • Service icon Glass Repair
    • Service icon Storm/Impact Windows
    • Service icon Glass Doors
    • Service icon Energy-Efficient Options

    Website: http://www.midcoastglassmaine.com/
    Address: 9 Monument Pl #1, Topsham, ME 04086
    Phone: (207) 725-2264

    Broken Glass Company

    Wells, ME
    4.5
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Educational Website

    Services Offered

    • Service icon Custom Glass
    • Service icon Glass Doors
    • Service icon Glass Showers
    • Service icon Glass Repair
    • Service icon Skylights
    • Service icon Window Replacement/Installation

    Website: https://brokenglassco.com/
    Address: 223 Post Rd, Wells, ME 04090
    Phone: (207) 216-9931

    Portland Glass of Dover

    Dover, NH
    4.8
    ★★★★★
    • Pros icon Educational Website
    • Pros icon Good Customer Service
    • Pros icon Price Transparency
    • Pros icon Free assessment

    Services Offered

    • Service icon Glass Repair
    • Service icon Window Replacement/Installation
    • Service icon Energy-Efficient Options

    Website: https://www.portlandglass.com/dover/
    Address: 119 New Rochester Rd, Dover, NH 03820
    Phone: (603) 716-9167

    Jr's Glass & Windows

    Lewiston, ME
    3.4
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Glass Showers
    • Service icon Custom Glass
    • Service icon Window Replacement/Installation

    Website: https://www.jrsglassandwindows.com/
    Address: 969 Lisbon St, Lewiston, ME 04240
    Phone: (207) 504-4082

    Interstate Glass & Mirror Inc

    Somersworth, NH
    4.6
    ★★★★★
    • Pros icon Price Transparency

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Mirrors
    • Service icon Bay Windows
    • Service icon Screen Repair
    • Service icon Glass Doors
    • Service icon Glass Showers

    Website: http://interstateglass.com/
    Address: 228 NH-108, Somersworth, NH 03878
    Phone: (603) 742-0600

    Glass Routes Co

    Madbury, NH
    4.9
    ★★★★★
    • Pros icon Educational Website
    • Pros icon Free assessment
    • Pros icon Good Customer Service
    • Pros icon Price Transparency

    Services Offered

    • Service icon Mirrors
    • Service icon Glass Showers
    • Service icon Vinyl Frames
    • Service icon Window Replacement/Installation
    • Service icon Custom Glass

    Website: http://www.glassroutes.net/
    Address: 181 Littleworth Rd, Madbury, NH 03823
    Phone: (603) 742-2600

    Pella Windows & Doors of Newington

    Newington, NH
    4.8
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Free assessment
    • Pros icon Price Transparency
    • Pros icon Educational Website

    Services Offered

    • Service icon Double-Hung
    • Service icon Bay Windows
    • Service icon Vinyl Frames
    • Service icon Window Replacement/Installation
    • Service icon Glass Doors
    • Service icon Wood Frames

    Website: https://www.pellabranch.com/new-england/showrooms/newington/
    Address: 25 Fox Run Rd Suite 2, Newington, NH 03801
    Phone: (603) 725-4690

    Glass Unlimited

    Wells, ME
    2.9
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Timely Service
    • Pros icon Good Customer Service
    • Pros icon Price Transparency

    Services Offered

    • Service icon Custom Glass
    • Service icon Energy-Efficient Options
    • Service icon Mirrors
    • Service icon Wood Frames
    • Service icon Window Replacement/Installation
    • Service icon Glass Showers
    • Service icon Glass Doors

    Website: https://www.glassunlimitedme.com/
    Address: 1213 Post Rd, Wells, ME 04090
    Phone: (207) 646-8268

    Clearview Sunroom & Window LLC

    Barrington, NH
    4.7
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Free assessment
    • Pros icon Educational Website

    Services Offered

    • Service icon Window Replacement/Installation

    Website: http://www.clearviewsunroom.com/
    Address: 1037 Calef Hwy, Barrington, NH 03825
    Phone: (603) 750-7577

    Portland Glass of Portsmouth

    Portsmouth, NH
    4.6
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Price Transparency
    • Pros icon Educational Website
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Glass Repair
    • Service icon Glass Showers

    Website: https://www.portlandglass.com/portsmouth/
    Address: 70 Heritage Ave, Portsmouth, NH 03801
    Phone: (603) 945-2324

    Southers Construction

    Dover, NH
    4.2
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Price Transparency
    • Pros icon Timely Service
    • Pros icon Educational Website
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Bay Windows
    • Service icon Window Replacement/Installation
    • Service icon Double-Hung

    Website: http://southersconstruction.com/
    Address: 12 Crosby Rd, Dover, NH 03820
    Phone: (603) 734-4572

    Lighthouse Contracting Group, LLC

    Gilford, NH
    5
    ★★★★★
    • Pros icon Educational Website
    • Pros icon Price Transparency
    • Pros icon Free assessment
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Window Replacement/Installation

    Website: https://lighthousecontractinggroup.com/
    Address: 104 Lily Pond Rd Unit A, Gilford, NH 03249
    Phone: (603) 567-4172
    South Portland Window Cost Calculator

    Calculate how much you can expect to pay for window installation and replacement in South Portland, ME using our customized window cost calculator.

    Estimated Window Cost:
    161 homeowners have requested a free estimate in the last 3 days.

    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 South Portland Saves You Money

    Upgrading to energy-efficient windows can improve the comfort of your home and help you save on electricity bills. Here's more information on how switching out your windows could benefit you:

    • Protect your investment: When you have an older home, your windows could also be outdated or damaged. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
    • Protect your valuables: Many energy-efficient 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.
    • Decrease your carbon footprint: Decreasing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by about 163 pounds.
    • Save on power bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of household energy use. Switching to energy-efficient models can help reduce how much you have to pay, therefore saving you about 12% more on your bills.

    Estimated Cost of Window Replacement in South Portland

    Windows come in varying shapes, styles and purposes, so costs and services will differ greatly depending on your project. Below, we describe the typical cost and services that you’ll find from window installers.

    How Much Do New Windows Cost?

    Though the typical cost of installing one window is about $600, it can range anywhere from $200 to $1,200. How much it will cost varies based on several factors, including type, material, size, the location of your home, number of windows and more.

    It’s also worth noting that energy-efficient windows will typically cost more initially, but Energy Star estimates that upgrading the windows on your South Portland home can mean an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 per year for double-pane windows. The amount of money you’ll save by installing energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.

    The cost of your window installation will also vary depending on the type of window material you choose for the frames. Wood windows are typically the most expensive, though it depends on whether they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are shown to be more efficient.

    What Services do Window Installers Offer?

    When it comes to window replacements, there are generally two types that your provider will offer: full-frame and pocket installations.

    Full-frame installations involve replacing the complete window, including the frame, sill and trim. You most likely need a full-frame installation when you want a new style or your window has significant rot or deterioration. These installations are more involved and will increase overall costs. Pocket installations (or retrofits) involve replacing a window within its existing frame, which makes pocket installations less labor-intensive and costly. However, if the frame has any damage or rot, you will most likely need a full-frame installation instead.

    If you’re unsure which window installation service you need, your installer should be able to help you out. Generally, the decision is based on factors like the age and condition of the home, the type of building material, budget and time restrictions.

    Best Availability

    Renewal by Andersen

    ★★★★★
    4.5
    • Great industry reputation
    • Member of US Green Building Council
    • Manufactures products in-house
    Buy One Window, Get One 40% OFF
    Get Estimate

    Power Home

    ★★★★★
    4.5
    • Uses eco-friendly materials
    • Well-trained, certified installers
    • Lifetime or lengthy warranty
    Next-Day Appointments Available
    Get Estimate

    Window Veteran

    Window World

    ★★★★★
    4.5
    • EnergyStar Partner
    • Wide variety of products and services
    • Lifetime Warranty

    How We Choose the Best Window Installers in South Portland

    EcoWatch reviews differ from other reviews, as we assess these companies through a sustainability lens. Along with energy efficiency, we reviewed each installer and assigned rankings based on the following methodology:

    Service Area

    This one is pretty self-explanatory, but we’ve chosen to highlight window installers that serve the South Portland area so you can find the right window installation company near you.

    Work Quality

    We’re willing to bet that you’re looking for a company to do a great job installing windows. We’ve vetted each installer on this list to make sure its technicians are well-qualified and that the company has received a lot of positive customer feedback to vouch for its service.

    Customer Reviews

    We analyzed patterns in recent online reviews to find the companies with the highest rates of customer satisfaction. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across most other categories, including quality of installation, quality of parts, professionalism, warranty, cost and more.

    Cost

    This one is a give-and-take: as with other 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 provide a variety of price and financing options so they’re accessible to most homeowners.

    Warranty

    Protecting your investment in new windows is important. For that reason, window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

    Years of Experience

    Because of South Portland’s climate, homeowners will want to mitigate low efficiency, rot and water damage. We factored in local experience to reflect the ability of South Portland window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.

    South Portland, ME Window Replacement FAQs

    How much does a window install cost?

    The average cost of replacing one window can range between $450 and $650. There are many factors that affect how much it costs, such as your property’s location, how energy-efficient the windows are, local labor costs, the number of windows, styles and sizes of windows and the materials used in designing the windows.

    What are the types of windows?

    There are various types of windows you can get for your house, such as transom windows, casement windows, picture windows, awning windows, slider windows, bay windows and double-hung and single-hung windows.

    Can I install my own windows?

    Even though it is possible to install your own windows, doing so is time-consuming and requires a lot of experience with home improvement projects. Hiring a professional can help ensure that the job is done properly and that you won’t have to spend the time and effort to do it yourself.

    Should I replace my windows all at once?

    If your windows are more than 20 years old, you most likely need to replace all of them. At that point, they are often less efficient, draftier and/or more damaged than new windows. Replacing your windows all at the same time will involve less paperwork and less stress.