24 Best Window Replacement Companies in Mendon, MA (Jan 2023)
Window Companies Near Me

If you're looking to upgrade to new windows, our list of the top window installation companies can help.

We analyzed all the top window installers in Mendon and selected the top 24 based on:

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

By EcoWatch Local Advisors

Updated January 12, 2023

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.

A review of the best window installation companies in Mendon may not seem like the most compelling article on EcoWatch, but trust us, windows have more of an impact on your life than you might realize. Drafty windows can cost you in electric bills. In fact, the Department of Energy estimates that about 30% of your home's heat or cool air could be lost through your windows.

That's also bad news for the environment because the additional energy used by damaged windows increases your carbon footprint.

Unlike other review sites, EcoWatch ranks window installation companies based on energy efficiency while also taking into consideration cost, customer satisfaction and service area.

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • EnergyStar Partner
  • Low prices relative to competitors
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Member of US Green Building Council
  • Award-winning company
  • Great industry reputation
  • No lifetime warranty

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Low number of customer complaints
  • Many years of experience
  • Manufactures products in-house
  • No lifetime warranty

Best Window Replacement Companies in Mendon

The EcoWatch team researched dozens of installers in Mendon to find the best window replacement companies for our readers. The installers mentioned in this article scored best in our categories: energy-efficient offerings, availability, price, customer service 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 Large serice area
  • Pros icon EnergyStar Partner
  • Pros icon Low prices relative to competitors
Cons:
  • Pros icon Quality of service will depend on your area

Window World offers windows expertise in Mendon. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This window installation company has been operating since 1995 and currently services 200 locations nationwide. Its reputation is backed by several positive reviews from customers online.

It 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 Mendon?

Prices aren't listed on Window World's website, but it's known for offering some of the most affordable window installations around. You can ask for a free quote on its website for more information about pricing.

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 Member of US Green Building Council
  • Pros icon Award-winning company
  • Pros icon Great industry reputation
Cons:
  • Pros icon No lifetime warranty

Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has been operating since 1995 and currently provides services to nearly every state except Mississippi and West Virginia.

It 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 is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company's windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.

How much does Renewal by Andersen cost in Mendon?

Pricing details are not available on Andersen's website, as the cost of window replacement differs based 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. If you'd like to know for sure, you can request a quote on the company's website.

Aeroseal Windows logo
FAST QUOTE
as little as 30 seconds
Best for Businesses

Aeroseal Windows

★★★★★
BBB Rating: A+
Locations: Regional
Founded: 1999
Pros:
  • Pros icon Low number of customer complaints
  • Pros icon Many years of experience
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty

Aeroseal Windows has the best window installation for businesses in Mendon. Aeroseal has been in the window business for about 23 years. The company has hundreds of positive reviews from customers on online review websites.

It installs windows and doors at businesses across the Eastern U.S.

Energy Efficiency of Aeroseal Windows Windows

Aeroseal Windows is an Energy Star partner and has a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company's windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Aeroseal representative when inquiring about services.

How much does Aeroseal Windows cost in Mendon?

Prices aren't available on Aeroseal's website, but it provides high-quality windows at a competitive price point. You can request a free quote on its website for more information about the cost.

Window Nation logo
FAST QUOTE
as little as 30 seconds
Best for Residential Windows

Window Nation

★★★★★
BBB Rating: A
Locations: Regional
Founded: 2006
Pros:
  • Pros icon Award-winning company
  • Pros icon Manufactures products in-house
  • Pros icon Custom designs
  • Pros icon Wide variety of products and services
Cons:
  • Pros icon Installation not covered by warranty
  • Pros icon Limited service area

Window Nation offers the best residential windows in Mendon. This window installation company has been operating since 2006 and currently serves residents within 75 miles of its showrooms, which are in 13 states. The company has a lot of positive reviews from customers online.

It has established itself as a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.

Energy Efficiency of Window Nation Windows

Window Nation appeals to eco-conscious consumers by providing energy-efficient window offerings. Each 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.

How much does Window Nation cost in Mendon?

Prices aren't available on Window Nation's website, but 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. If you'd like more accurate pricing information, you can ask for a quote on the company's website.

We aim to stay unbiased and transparent by mentioning pros and cons for each company. Additionally, any partnerships do not influence our rankings.

More Window Replacement Companies in Mendon

Renewal by Andersen of Boston

Northborough, MA
4.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Award-Winning

Services Offered

  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Stained Glass
  • Service icon Sliding Glass
  • Service icon Bay Windows

Website: https://www.renewalbyandersen.com/window-company/096-boston-ma/about-us
Address: 30 Forbes Rd, Northborough, MA 01532
Phone: (508) 351-2236

Beantown Home Improvements, Inc.

Middleborough, MA
4.4
★★★★★
  • Pros icon Arrives on Time
  • Pros icon Educational Website
  • Pros icon Excellent Customer Service
  • Pros icon Supports Charities

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung

Website: https://www.beantownhi.com/
Address: 53 Plain St, Middleborough, MA 02346
Phone: (781) 293-1417

Northeast Home & Energy

North Grafton, MA
4.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Dependable Service
  • Pros icon Free Quotes
  • Pros icon Arrives on Time

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.northeast-home.com/
Address: 21 N Main St, North Grafton, MA 01536
Phone: (508) 839-7001

Mass Window & Door Inc.

Bridgewater, MA
4.2
★★★★★
  • Pros icon Free Quotes
  • Pros icon Price Transparency
  • Pros icon Reliable Service
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Stained Glass
  • Service icon Sliding Glass

Website: http://masswindowanddoor.com/
Address: 120 Grange Park, Bridgewater, MA 02324
Phone: (781) 957-8675

United Better Homes

Central Falls, RI
4.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free Quotes
  • Pros icon Reliable Service

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://www.unitedbetterhomes.com/
Address: 535 Pine St, Central Falls, RI 02863
Phone: (401) 274-0111

NEWPRO

Wrentham, MA
4.1
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.newpro.com/contact-us/wrentham/
Address: 475 Washington St, Wrentham, MA 02093
Phone: (781) 897-0850

Shine Construction Inc

Uxbridge, MA
4.1
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon Free Quotes
  • Pros icon Helps Educate Customers
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.shineconstructioninc.com/
Address: 301 N Main St, Uxbridge, MA 01569
Phone: (508) 278-3300

Shine Construction Inc

Uxbridge, MA
4.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Arrives on Time
  • Pros icon Good Customer Service
  • Pros icon Award-Winning

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.shineconstructioninc.com/
Address: 301 N Main St, Uxbridge, MA 01569
Phone: 301 N Main St

Krystal Glass & Door Co

Smithfield, RI
4.1
★★★★★
  • Pros icon Free Quotes
  • Pros icon Price Transparency
  • Pros icon Dependable Service
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://krystalglassri.com/
Address: 9 Rocky Hill Rd Unit B, Smithfield, RI 02917
Phone: (401) 231-1600

The Window Source RI

Smithfield, RI
4.0
★★★★★
  • Pros icon Free Quotes
  • Pros icon Reliable Service
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Architectural Glass
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.windowsourceri.com/
Address: 127 Dean Ave, Smithfield, RI 02917
Phone: (401) 270-0160

Mastercraft Roofing Siding Windows

Hingham, MA
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.mastercraftroofingsidingwindows.com/
Address: 49 Whiting St, Hingham, MA 02043
Phone: (781) 829-2222

Guaranteed Building Maintenance

Sturbridge, MA
4.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Award-Winning
  • Pros icon Reliable Service
  • Pros icon Reliable Appointment Windows

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://gbmaintco.com/
Address: 20 Ponton St, Sturbridge, MA 01566
Phone: (508) 450-7472

Window World of Boston

Shrewsbury, MA
3.9
★★★★★
  • Pros icon Timely Service
  • Pros icon Helps Educate Customers
  • Pros icon Reliable Service
  • Pros icon Good Customer Service

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Windows
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: https://www.windowworldofboston.com/
Address: Shrewsbury, MA
Phone: (508) 217-9934

UBrothers Construction

Framingham, MA
3.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Award-Winning
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Double-Hung
  • Service icon Bay Windows

Website: https://ubrothersconstruction.com/
Address: 6 Temple St, Framingham, MA 01702
Phone: (800) 984-2667

Mr. Handyman of Central - Eastern Norfolk County & S.Shore

Walpole, MA
3.9
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon Award-Winning
  • Pros icon No-fee Quotes
  • Pros icon Reliable Appointment Windows

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Double-Hung

Website: https://www.mrhandyman.com/central-eastern-norfolk-county-south-shore/
Address: 940 East St, Walpole, MA 02081
Phone: (508) 465-2092

REI Roofing

Holbrook, MA
3.9
★★★★★
  • Pros icon Reliable Appointment Windows
  • Pros icon No-fee Quotes
  • Pros icon Price Transparency
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Residential Windows
  • Service icon Full-Service Installations
  • Service icon Custom Window Designs

Website: http://reiroofing.com/
Address: 670 S Franklin St, Holbrook, MA 02343
Phone: (781) 848-1999

Bruin Corp. of Framingham

Ashland, MA
3.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://www.bruincorp.net/
Address: 208 Pond St, Ashland, MA 01721
Phone: (508) 881-8200

King Shade & Window Co.

West Roxbury, MA
3.7
★★★★★
  • Pros icon Free Quotes
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Energy-Efficient Options
  • Service icon Architectural Glass

Website: https://www.kingshadeandwindow.com/
Address: 1764 Centre St, West Roxbury, MA 02132
Phone: (617) 323-0600

Pella Windows & Doors of Boylston

Boylston, MA
3.7
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.pellabranch.com/western-massachusetts/showrooms/boylston/
Address: 280 Shrewsbury St, Boylston, MA 01505
Phone: (508) 842-1112

Boston Glass Group

Chestnut Hill, MA
3.6
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service
  • Pros icon Consistent Workmanship
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Tempered Glass
  • Service icon Doors
  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.bostonglassgroup.com/
Address: 801 Boylston St, Chestnut Hill, MA 02467
Phone: (617) 505-6091

Guaranty Glass and Mirror

Spencer, MA
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Reliable Service
  • Pros icon No-Hassle Pricing
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.google.com/aclk
Address: Spencer, MA
Phone: (508) 834-6991

Window World of Rhode Island

Warwick, RI
3.6
★★★★★
  • Pros icon Reliable Service
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Charitable Giving

Services Offered

  • Service icon Custom Windows
  • Service icon Architectural Glass
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://www.windowworldri.com/
Address: 380 Jefferson Blvd, Warwick, RI 02886
Phone: (401) 336-6815

Boston Glass & Boarding Service Inc.

Dorchester, MA
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Reliable Service
  • Pros icon Price Transparency
  • Pros icon Reliable Appointment Windows

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: http://www.bostonglassinc.com/
Address: 1068 Dorchester Ave, Dorchester, MA 02125
Phone: (617) 298-5755

Pella Windows & Doors of Hingham

Hingham, MA
3.6
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Award-Winning
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Window Designs
  • Service icon Architectural Glass
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://www.pellabranch.com/boston/showrooms/hingham/
Address: 5 Pond Park Rd, Hingham, MA 02043
Phone: (781) 826-8005

How Installing Energy-Efficient Windows in Mendon Saves You Money

By switching to energy-efficient windows, you and your family can enjoy several benefits, such as:

  • Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
  • Reduce your carbon footprint: In Mendon, you can lower your indirect greenhouse gas emissions by about 139 pounds per year after you upgrade to energy-efficient windows.
  • Protect your investment: When you have an older home, your windows could also be outdated or drafty. Upgrading and repairing your windows is an important part of maintaining your property and its real estate value.
  • Save on power bills: According to the Department of Energy, heat gained or lost through windows makes up around 25-30% of residential energy use. Replacing your windows with energy-efficient models can help decrease how much energy is used in your home, therefore saving you about 12% more on your bills.

Estimated Cost of Window Replacement in Mendon

When considering window installation, each company offers different services and prices. Let's go over some typical costs and services.

How Much Do New Windows Cost?

Although the typical to replace one window is about $600, it can range from $200 to $1,200. This is because the cost of window installations depend on several factors specific to your home, including the size, material and number of windows you need to install, as well as where your property is located.

With windows, efficiency is one of the most important factors for many homeowners. Windows with higher efficiency may cost more initially, but by increasing the efficiency of your home — especially during the winter — they can give you many years of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Mendon homeowners $440+ each year after replacing single-pane windows.

How much your window installation costs will also vary depending on the type of window material you choose for the frames. Wood windows are usually the most expensive, though it depends if they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are shown to be more efficient.

What Services do Window Installers Offer?

The first thing to ask yourself when planning on installing new windows is: Do you want a full-frame installation or a pocket installation?

Full-frame installations entail replacing the total window, including the sill, frame and trim. Full-frame installations are necessary when you want to change the style of your windows or your window has noticeable rot. Because full-frame installations are more involved, they will raise the overall cost. Pocket installations (also known as retrofits) are when you replace a window while leaving the old frame. Pocket installations are on the simpler end and will be less expensive, but you can't do this kind of installment if you have any pre-existing rot or water damage.

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

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • EnergyStar Partner
  • Low prices relative to competitors
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Member of US Green Building Council
  • Award-winning company
  • Great industry reputation
  • No lifetime warranty

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Low number of customer complaints
  • Many years of experience
  • Manufactures products in-house
  • No lifetime warranty

How We Choose the Best Window Installers in Mendon

EcoWatch reviews are different from most reviews, as we examine these companies through a sustainability lens. We have assessed the best window replacement companies in Mendon 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 is based on the following factors:

Service Area

This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve Mendon so you can find the right window installation company near you.

Work Quality

We're certain that you're not looking for a company to do a shoddy job installing windows. We've vetted each company featured on this list to make sure its technicians are well-qualified and that the company has gotten plenty of positive customer feedback to vouch for its service.

Customer Reviews

Another self-explanatory yet super important review factor is customer feedback. If most customers don't have good feedback about their experience with a certain window installation company, it won't be featured on EcoWatch.

Cost

Cheaper windows don't necessarily mean better windows, but we know many of our readers try to keep costs low when 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. For that reason, window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Last but not least, we like to see companies that have a proven track record in the industry. Window installation companies that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.

Mendon, MA Window Replacement FAQs

How much does window installation cost?

The average cost of replacing a window ranges from $450 to $650. There are many factors that affect the cost, such as styles and sizes of windows, your property's location, the materials used in designing the windows, the number of windows, how energy-efficient the windows are and local labor costs.

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 will be more efficient than windows that do. To be sure you're getting the most energy-efficient windows, look for models that have the blue Energy Star certification — they're certified energy-efficient by the U.S. Department of Energy.

When should I use a window installation company?

Unless you're handy and have all the tools you need to replace your own windows, we recommend hiring the pros. The process of installing windows is complicated and can take anywhere from four to six hours for one window. Although it's tempting to try to save money by doing it yourself, hiring a company is a faster, more efficient and much safer alternative.

What time of year is a good time to replace my windows?

While you can install windows any time of year, warmer weather is generally better for replacing windows. Additionally, the weather should be dry, since rain can make the installation more difficult.

Should I replace my windows all at once?

If you're upgrading your windows to get more efficient windows, replacing all your windows at once is the only way to gain that benefit. On the other hand, if you have just a few windows that are broken or drafty, you can replace just those.

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