20 Best Window Companies in Sanford, ME (2025 Reviews)

Thinking about upgrading your windows? We’ve got you covered in this list of the best window installation companies.

We analyzed all the top-rated window companies in Sanford 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 January 24, 2025

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.

Whether you're doing renovations or have windows that need repairs, windows play an important role in conserving electricity in your home. According to the Department of Energy, heat or cool air lost through old or damaged windows could account for 25-30% of residential energy climate control costs.

That’s also bad news for the environment, as the additional energy used by drafty windows increases your carbon footprint.

As windows are so important for your home, selecting the best company for you is a big decision to make. That’s why the EcoWatch team has put together this list of the top window replacement companies, so you can more easily make an informed decision.

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Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Power Home

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

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

Best Window Installation & Replacement Companies in Sanford

The EcoWatch Reviews team assessed dozens of installers across the country to find the best window companies for our readers. The companies reviewed in this article scored best in our categories, which include energy-efficient offerings, price, availability, customer service and more.

Window World logo
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. This company has 27 years of experience in the windows industry, and it has established itself as one of the most reputable companies in the business. The company has many positive reviews from customers on online review websites.

You may want to consider going with Window World if you're interested in a installer 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

Window World carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality Energy Star windows when inquiring. 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 Sanford?

Window World doesn’t have any pricing information displayed on its website, but it's known for offering some of the most affordable window installations around. The best way to know for sure is to request a free quote from the company.

Renewal by Andersen logo
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. This company has 27 years of experience in the windows industry, and it has established itself as one of the most reputable companies in the business. The company has many positive reviews from customers on online review websites.

You may want to consider going with Andersen if you're interested in a installer 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

Renewal by Andersen carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality Energy Star windows when inquiring. 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 Sanford?

Andersen doesn’t have any pricing information displayed on its website, but 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 request a free quote from the company.

We’ve recommended providers with shining reputations, but note that these are national companies, so your service may differ depending on your local crew. We have tried to be unbiased and transparent by mentioning pros and cons for each company reviewed.

More Window Companies in Sanford

Renewal by Andersen Window Replacement

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

Services Offered

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

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

DaBella

Salem, NH
4.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

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

Website: https://dabella.us/location/salem/
Address: 13 Red Roof Ln Suite 201, Salem, NH 03079
Phone: (603) 691-2339

Great Bay Roofing & Exteriors

Rochester, NH
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Skylights

Website: https://www.greatbayroofing.com/
Address: 12 N Main St, Rochester, NH 03867
Phone: (603) 748-7254

Lighthouse Contracting Group, LLC

Gilford, NH
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

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

Affordable Vinyl Windows & Siding Inc

Auburn, NH
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation

Website: http://www.affordwindow.com/
Address: 320 Rockingham Rd STE 5, Auburn, NH 03032
Phone: (603) 647-7474

Pro Entry Installs LLC

Salem, NH
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Good Customer Service

Services Offered

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

Website: https://proentry.com/
Address: 7 Cassidy Ave #2863, Salem, NH 03079
Phone: (603) 765-1312

Manny's Roofing

Pelham, NH
5.0
★★★★★
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Roof Windows
  • Service icon Skylights

Website: http://www.mannysroofing.com/
Address: 1197 Bridge St, Pelham, NH 03076
Phone: (603) 800-7663

First Choice Construction, LLC

Beverly, MA
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation

Website: http://firstchoiceconstruction.com/
Address: 88 Elliott St, Beverly, MA 01915
Phone: (978) 922-3949

Glass Routes Co

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

Services Offered

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

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

Dover Roofing LLC

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

Services Offered

  • Service icon Skylights
  • Service icon Window Replacement/Installation

Website: https://doverroofingcontractors.com/
Address: 120 Durham Rd, Dover, NH 03820
Phone: (603) 498-5741

Dependable J M R Siding

Manchester, NH
4.9
★★★★★
  • Pros icon Free assessment

Services Offered

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

Website: https://jmrsiding.com/
Address: 65 Pine Island Rd, Manchester, NH 03103
Phone: (603) 669-5020

Midcoast Glass & Windows

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

Services Offered

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

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

Dracut Window & Door

Dracut, MA
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: http://dracutwindowanddoor.com/
Address: 16 Holbrook Ave, Dracut, MA 01826
Phone: (978) 751-3667

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

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

Pella Windows & Doors of Scarborough

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

Services Offered

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

Pella Windows & Doors of Newington

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

Services Offered

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

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

Rite Window

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

Services Offered

  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors

Website: https://www.ritewindow.com/
Address: 41 Industrial Dr #9, Exeter, NH 03833
Phone: (603) 945-7126

The Window Source NH

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

Services Offered

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

Website: https://www.windowsourcenh.com/
Address: 779 Lafayette Rd Suite 1, Seabrook, NH 03874
Phone: (603) 764-7212

Morgan Exteriors

Hooksett, NH
4.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation

Website: http://morganexteriorswindows.com/
Address: 78 Londonderry Turnpike UNIT E1, Hooksett, NH 03106
Phone: (603) 895-2092

Universal Windows Direct

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

Services Offered

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

Website: https://www.universalwindowsmanchester.com/
Address: 880 Candia Rd #8, Manchester, NH 03109
Phone: (603) 218-3756
Sanford Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Sanford, 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 Sanford Saves You Money

Energy-efficient windows can provide benefits in several ways. Here are a few reasons you may want to think about making the switch:

  • Reduce your carbon footprint: In Sanford, you can lower your indirect greenhouse gas emissions by about 163 pounds per year when you switch to energy-efficient windows.
  • Protect your investment: If your home is on the older side, your windows are most likely outdated. Upgrading your windows can improve the insulation in your home and also help raise the value of your home if you decide to sell.
  • Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out damaging UV rays.
  • Save money on electricity bills: After you switch to energy-efficient windows, you can see a reduction in your bills by about 12% because you’ll require less energy to heat or cool your home.

Estimated Cost of Window Replacement in Sanford

Let’s take a look at the cost of installing new windows and the kinds of services offered by installers.

How Much Do New Windows Cost?

The typical cost to install one window is about $600 but can range from $200 to $1,200. This is due to the fact that the cost of window installations depend on several factors specific to your home, such as the size, material and number of windows you need to install, as well as the location of your property.

It’s important to bear in mind that windows with higher efficiency may cost more upfront but can save you hundreds of dollars via returns on your energy bills. Investing in certified energy-efficient windows can save Sanford homeowners $383+ a year when replacing single-pane windows.

Costs will also vary depending on the material you pick for your window frames. Aluminum frames cost the least. They’re sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made using wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They’re also aesthetically pleasing and provide decent insulation for your home.

What Services do Window Installers Offer?

There are generally two kinds of window replacement services: full-frame and pocket installations.

Full-frame installations are usually recommended when you want a new style or your window has a lot of rot. With this service, your installers will replace the complete window, including the frame, trim and sill. Pocket installations (or retrofits) entail installing a new window within its existing frame, which makes pocket installations less labor-intensive and costly. But, if the frame has any rot or deterioration, you should opt for a full-frame installation instead.

Your window installation company can help you figure out which type of installation you should get.

Advertisement

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Power Home

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

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

How We Choose the Best Window Installers in Sanford

The EcoWatch Reviews team differs from other reviewers since we’re examining these companies through a sustainability lens. We have reviewed the best window installers in Sanford mainly based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. Energy-efficient windows have been shown to reduce your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

Since this is a guide for Sanford, we gave more points to companies that provide services to the city. There are other reputable providers that didn’t make the cut because of the low odds that they would serve the average homeowner in Sanford.

Work Quality

When picking new windows, the quality and range 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 most customers don’t have nice things to say about their experience with a certain installer, you won’t see it featured on EcoWatch.

Cost

This one is a give-and-take: similar to other services, cheap window installation companies are not going to provide the most quality service. Still, we want to ensure we’re highlighting companies that provide a variety of price and financing options so they’re accessible to most homeowners.

Warranty

As discussed, windows are a serious investment, so you’ll want to be certain that investment is protected. Window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

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

Sanford, ME Window Replacement FAQs

What is the typical cost to install new windows?

The typical cost of replacing a single window can range from $450 to $650. There are several factors that influence how much it costs, such as styles and sizes of windows, how energy-efficient the windows are, the materials used in designing the windows, your property’s location, local labor costs and the number of windows.

What kind of window is the best for energy efficiency?

Generally, double-pane windows are more efficient than single-pane windows and windows that don’t open are more efficient than windows that do. If you want to be sure you’re getting the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — that means they’re certified energy-efficient by the U.S. Department of Energy.

What do window installation companies do?

Window installers cover the entire process — from replacing your old windows with new ones to cleaning up after the installation. Additionally, some companies offer window manufacturing, customization and repairs.

Should I replace all my windows at once?

If you want to get more efficient windows and save money on energy costs, replacing all of your windows together is the only way to see a noticeable difference. On the other hand, if you have just a few windows that are damaged or drafty, you can replace just those.