29 Best Window Replacement Companies in Williamstown, VT (2023 Reviews)
Window Companies Near Me

Thinking of improving your home's appearance? The top window replacement companies can help.

We analyzed all the top window installers in Williamstown and selected the top 29 based on:

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

By EcoWatch Local Advisors

Updated May 04, 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.

The EcoWatch team is all about finding solutions for eco-conscious homeowners in Williamstown. Damaged or outdated windows could lead to having higher energy bills during the winter or summer months.

Installing upgraded, efficient windows on your home can help you save money each month on your electricity bills — and you can help the environment as well.

So if you're constructing a new home, renovating or replacing your windows in Williamstown, this guide is the best place to get started.

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • Lifetime warranty
  • Great industry reputation
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Manufactures products in-house
  • Award-winning company
  • More expensive than competition

Best Window Replacement Companies in Williamstown

The EcoWatch Reviews team researched dozens of companies that service the Williamstown area to find the best window installation companies by our standards. The installers in this article passed our review standards for energy-efficient offerings as well as customer service, price, local expertise and beyond.

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 Lifetime warranty
  • Pros icon Great industry reputation
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 provider has 27 years of experience in the windows business, and it has established itself as one of the most respected companies in Williamstown. The company has many glowing reviews from customers on online review websites.

You may want to consider opting for 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

Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World's offerings are Energy Star certified, so make sure you mention that you're interested in Energy Star windows when inquiring.

How much does Window World cost in Williamstown?

Prices aren't displayed on Window World's website, but it's known for offering some of the most affordable window installations around. You can request 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 Great industry reputation
  • Pros icon Manufactures products in-house
  • Pros icon Award-winning company
Cons:
  • Pros icon More expensive than competition

Renewal by Andersen offers the best availability in Williamstown. Andersen has about 27 years of experience in the window installation business.

If you're looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, this may be the company for you.

Energy Efficiency of Renewal by Andersen Windows

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. Not all of Andersen's offerings are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Williamstown?

Prices are not available on Andersen's website because 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. Receiving a free quote on its website is the best way to get more accurate pricing information.

We try to be unbiased and transparent by mentioning pros and cons for each company we review. Additionally, our rankings are not affected by any partnerships.

More Window Replacement Companies in Williamstown

Pella Windows & Doors

Plattsburgh, NY
4.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Award-Winning
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.pella.com/
Address: 79 Hammond Ln #03, Plattsburgh, NY 12901
Phone: (518) 563-8536

EcoSmart Shades

Williston, VT
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Double-Hung

Website: http://ecosmartshades.com/
Address: 8 Leroy Rd, Williston, VT 05495
Phone: (877) 338-9392

Gordon's Window Decor

Williston, VT
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: http://gordonswindowdecor.com/
Address: 8 Leroy Rd, Williston, VT 05495
Phone: (802) 655-7777

Portland Glass of South Burlington

South Burlington, VT
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.portlandglass.com/south-burlington/
Address: 45 Green Mountain Dr, South Burlington, VT 05403
Phone: (802) 449-0106

Pella Windows & Doors of South Burlington

South Burlington, VT
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.pellabranch.com/vermont/showrooms/south-burlington/
Address: 340 Dorset St, South Burlington, VT 05403
Phone: (802) 864-5435

Home Services at The Home Depot

West Lebanon, NH
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.homedepot.com/l/W-Lebanon/NH/West-Lebanon/03784/3406/services
Address: 296 N Plainfield Rd, West Lebanon, NH 03784
Phone: (844) 608-0613

Home Services at The Home Depot

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

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Fast Delivery
  • Service icon Commercial Windows

Website: https://www.homedepot.com/l/Littleton-NH/NH/Littleton/03561/8539/services
Address: 895 Meadow St, Littleton, NH 03561
Phone: (855) 399-4159

Home Services at The Home Depot

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

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Fast Delivery
  • Service icon Commercial Windows

Website: https://www.homedepot.com/l/Claremont/NH/Claremont/03743/3408/services
Address: 451 Washington St, Claremont, NH 03743
Phone: (844) 642-5037

SymphonyShades.com

Williston, VT
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Double-Hung

Website: https://tinyurl.com/SymEco
Address: 8 Leroy Rd, Williston, VT 05495
Phone: (877) 887-4239

Top Notch Custom Glass

Littleton, NH
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Tempered Glass
  • Service icon Commercial Windows

Website: http://topnotchcustomglass.com/
Address: 399 Union St, Littleton, NH 03561
Phone: (603) 575-5301

Sun Stoppers Williston

Williston, VT
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Commercial Windows
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Fast Delivery

Website: https://sunstoppers.com/
Address: 200 Boyer Cir, Williston, VT 05495
Phone: (802) 688-1193

Portland Glass of Littleton

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

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.portlandglass.com/littleton/
Address: 678 Meadow St, Littleton, NH 03561
Phone: (603) 945-2892

Budget Blinds of Colchester

Colchester, VT
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

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

Website: https://www.budgetblinds.com/Colchester/
Address: 85 Prim Rd STE 204, Colchester, VT 05446
Phone: (802) 651-9366

Portland Glass of Barre

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

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.portlandglass.com/barre/
Address: 1041 US-302, Barre, VT 05641
Phone: (802) 432-9162

Portland Glass of West Lebanon

West Lebanon, NH
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.portlandglass.com/west-lebanon/
Address: 18 Bridge St, West Lebanon, NH 03784
Phone: (603) 716-9218

Portland Glass of Rutland

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

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.portlandglass.com/rutland/
Address: 228 US-7, Rutland, VT 05701
Phone: (802) 397-9131

Portland Glass of St. Albans

St Albans City, VT
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.portlandglass.com/st-albans/
Address: 36 Sheldon Rd, St Albans City, VT 05478
Phone: (802) 392-0107

Portland Glass of Newport

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

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.portlandglass.com/newport/
Address: 32 Community Dr, Newport, VT 05855
Phone: (802) 768-9781

Window World of the Green Mountains

South Burlington, VT
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.windowworldvermont.com/
Address: 82 Ethan Allen Dr Unit 5, South Burlington, VT 05403
Phone: (802) 846-7622

Pella Windows & Doors of New London

New London, NH
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Bay Windows
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Fast Delivery
  • Service icon Double-Hung

Website: https://www.pellabranch.com/new-england/showrooms/new-london/
Address: 406 Main St, New London, NH 03257
Phone: (603) 725-4700

Pella Windows & Doors of Meredith

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

Services Offered

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

Website: https://www.pellabranch.com/new-england/showrooms/meredith/
Address: 71 NH-25, Meredith, NH 03253
Phone: (603) 725-4660

Home Services at The Home Depot

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

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows

Website: https://www.homedepot.com/l/Rutland/VT/Rutland/05701/4502/services
Address: 299 US-4 East, Rutland, VT 05701
Phone: (802) 239-1772

Vermont Renovation and Remodeling

Colchester, VT
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Double-Hung

Website: https://vermontrenovationandremodeling.com/
Address: 2789 Middle Rd, Colchester, VT 05446
Phone: (518) 466-9625

Clark's Glass

Rutland, VT
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://clarksglassvt.com/
Address: 137 N Main St, Rutland, VT 05701
Phone: (802) 772-4552

Claremont GlassWorks

Claremont, NH
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: http://www.claremontglassworks.com/
Address: 125 North St, Claremont, NH 03743
Phone: (603) 542-3100

Limoge & Sons Garage Doors

Williston, VT
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: http://www.limogegaragedoors.com/
Address: 136 James Brown Dr, Williston, VT 05495
Phone: (802) 878-4338

Snow Country Roofing

Shelburne, VT
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.snowcountryroofing.com/
Address: 145 Pine Haven Shores, Shelburne, VT 05482
Phone: (802) 266-2434

Able Paint Glass & Flooring

Burlington, VT
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

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

Website: http://www.ablevt.com/
Address: 683 Pine St, Burlington, VT 05401
Phone: (802) 860-2253

Home Services at The Home Depot

Williston, VT
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows

Website: https://www.homedepot.com/l/Williston/VT/Williston/05495/4501/services
Address: 759 Harvest Ln, Williston, VT 05495
Phone: (802) 239-1766

How Installing Energy-Efficient Windows in Williamstown Saves You Money

Energy-efficient windows can benefit you in more than one way. Here are a few reasons you may want to think about making the switch:

  • Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.
  • Save on energy bills: The Department of Energy estimates that heat gained or lost through windows makes up about 25-30% of household energy use. Installing energy-efficient windows can help decrease that amount, which helps you save $680 a year on your bills.
  • Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its value, especially if you have an older home.
  • Decrease your carbon footprint: By using less energy once switching to Energy Star certified windows, you'll also be cutting your carbon dioxide emissions by about 12%, according to Energy Star.

Estimated Cost of Window Replacement in Williamstown

When researching window installation, each company provides varying services and prices. Let's look at some typical costs and services.

How Much Do New Windows Cost?

The average cost to install one window is about $600 but can range from $200 to $1,200. This is because the cost of window installations are based on a variety of factors specific to your home, such as the size, material and number of windows you need to replace, as well as the location of your property.

It's also worth keeping in mind that energy-efficient windows will almost always cost more initially, but Energy Star estimates that switching out the windows on your Williamstown home translates to an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 each year for double-pane windows. The amount of money you'll save by installing energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.

Costs will also vary depending on the material of your frame. Aluminum frames cost the least. They're sturdy, light and maintenance-free, but provide poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made with 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?

The first step of a window installation is to figure out whether you want a full-frame or pocket installation.

A full-frame installation replaces the entire window, such as the windowsill, frame, trim and the window panes. Because this kind of installation requires more time, it will be more expensive than a pocket installation. A pocket installation means replacing a window without removing the entire frame, which is usually cheaper than a full-frame installation.

If you're still trying to decide which kind of installation you need, you can consult with your provider and get their advice. The decision mostly depends on how old the frames are and if there's any damage present.

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • Lifetime warranty
  • Great industry reputation
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Manufactures products in-house
  • Award-winning company
  • More expensive than competition

How We Choose the Best Window Installers in Williamstown

In our search to find the most reliable, eco-friendly window installers in Williamstown, EcoWatch evaluated many companies before settling on these. We have assessed the best window installers in Williamstown primarily based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified 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 installers that serve the Williamstown area so you can find the right window installation company near you.

Work Quality

When selecting new windows, the quality and breadth of services can often play just as important of a role in overall efficiency and performance as the brand 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

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

Cost

This one is a give-and-take: similar to most services, cheap window installers won't always provide the most quality service. Still, we want to ensure we're highlighting companies that provide a spectrum of price and financing options so they're accessible to most homeowners.

Warranty

Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that offer lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Lastly, we like to see companies that have been in the industry for a while. Window installation companies that have more years of experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.

Williamstown, VT Window Replacement FAQs

What is the typical cost to install new windows?

The national average cost to replace one window is around $600 but can range between $200 and $1,200, based on a few different factors. The price is often influenced by the size of the window, the type and material of the window and the location of your property. Also, remember that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.

What type of window is the best for energy efficiency?

A window's energy efficiency is influenced by several factors, including the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are often the most energy-efficient and are certified by the U.S. Department of Energy.

What do window installers do?

Window installation professionals visit your house to remove your old windows and replace them with new ones. Some providers install products manufactured by other companies, whereas others install their own windows. The installer will also clean up after the installation is finished.

What time of year should I replace my windows?

Replacement windows can be installed during any season, but warmer weather is typically better. No matter when you install them, the contractors will take steps to make sure that too much hot or cold air doesn't get into the house, so the temperature outside isn't necessarily a big factor. What's more important than the temperature is that the weather should be dry.

Should I replace all my windows at once?

If your windows are greater than 20 years old, it's probably time to replace all of them. By that point, they are usually 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.

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