22 Best Window Replacement Companies in East Alton, IL (Jan 2023)
Window Companies Near Me

Are you thinking about upgrading your windows? Our guide to the top window installation companies can help you narrow down which one to pick.

We analyzed all the top window installers in East Alton and selected the top 22 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.

The EcoWatch Reviews team is all about helping East Alton homeowners find eco-conscious solutions for their homes. During the summer months, the last thing you want is your cool air to leak out of your drafty windows.

Replacement windows improve the insulation in your home, not only making you and your family more comfortable during the summer and winter, but also saving you some money and helping the environment.

We've made this list of the top installation companies to help you in your research, so you can not only take advantage of brand new windows, but also save money on your energy bills.

Best Overall

Renewal by Andersen

★★★★★
4.5

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

Best Affordability

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Lifetime warranty
  • Large serice area
  • Quality of service will depend on your area

Best for Residential Windows

Window Nation

★★★★★
4

  • Custom designs
  • Award-winning company
  • Wide variety of products and services
  • Installation not covered by warranty

Best Window Replacement Companies in East Alton

The EcoWatch team researched dozens of installers across the country to find the top window replacement companies for our readers. The providers reviewed in this article scored best in our categories, including energy-efficient offerings, price, availability, customer service and more.

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
Cons:
  • Pros icon No lifetime warranty

Renewal by Andersen offers the best availability in East Alton. Andersen has been in the window installation industry for about 27 years. Many positive reviews from customers online back the provider's reputation.

It has established itself as a company 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 ask for 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 East Alton?

Andersen does not detail prices 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. If you'd like more accurate information, you can receive a quote on the company's website.

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 Lifetime warranty
  • Pros icon Large serice area
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 been in business since 1995 and currently provides services to 200 locations nationwide. Hundreds of positive reviews on customer review websites back the provider's reputation.

You may want to consider opting for Window World if you're interested in a company 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's commitment to sustainability shows in its energy-efficient window offerings. 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 East Alton?

Pricing information is not available on Window World's website, as the cost of window installment differs based 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. If you'd like more accurate information, you can ask for a quote on the company's website.

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 Custom designs
  • Pros icon Award-winning company
  • Pros icon Wide variety of products and services
Cons:
  • Pros icon Installation not covered by warranty

Window Nation is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has about 16 years of industry experience, and it currently provides services to residents within 75 miles of its showrooms, which are in 13 states. Hundreds of positive reviews from customers online back the company's reputation.

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

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. Not all of Window Nation's windows are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.

How much does Window Nation cost in East Alton?

Prices aren't mentioned 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. The best way to get more accurate information is to request a free quote from the company.

Universal Windows Direct logo
FAST QUOTE
as little as 30 seconds
Best Warranty

Universal Windows Direct

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 2002
Pros:
  • Pros icon Makes charitable contributions
  • Pros icon Manufactures products in-house
  • Pros icon Wide variety of products and services
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Limited service area
  • Pros icon Some installations carried out by third-party contractors
  • Pros icon Quality of service will depend on your area

Universal Windows Direct has the best warranty in East Alton. Universal has been in the window installation industry for about 20 years. Its reputation is backed by all the positive reviews from customers online.

You may want to consider going with Universal if you're interested in a company that has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

There are a wide range of window types available from Universal Windows Direct, some of which are Energy Star products. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.

How much does Universal Windows Direct cost in East Alton?

Prices aren't displayed on Universal's website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. Requesting a free quote on its website is the best way to get more accurate pricing information.

Please note that the companies in this section are national, which means the quality of customer service may depend on your local crew. We have tried to stay unbiased and transparent by describing pros and cons for each company.

More Window Replacement Companies in East Alton

Wildwood Roofing & Construction

Ellisville, MO
4.8
★★★★★
  • Pros icon Free Quotes
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing

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://www.wildwoodroof.com/
Address: 437 Old State Rd, Ellisville, MO 63021
Phone: (636) 400-1011

Window World of St. Louis

Bridgeton, MO
4.0
★★★★★
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Educational Website

Services Offered

  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.windowworldstlouis.com/
Address: 13892 St Charles Rock Rd, Bridgeton, MO 63044
Phone: (314) 993-1800

Chaney Windows And Doors

Maryland Heights, MO
3.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers
  • Pros icon Award-Winning

Services Offered

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

Website: http://chaneywindowsanddoors.com/
Address: 80 Weldon Pkwy, Maryland Heights, MO 63043
Phone: (636) 699-6353

Mr. Handyman of Metro East

Collinsville, IL
3.9
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Helps Educate Customers
  • Pros icon Free Quotes
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.mrhandyman.com/metro-east/
Address: 1309 Vandalia St, Collinsville, IL 62234
Phone: (618) 319-7256

Renewal by Andersen of St. Louis

Maryland Heights, MO
3.8
★★★★★
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

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

Website: http://www.rbastl.com/
Address: 2446 Schuetz Rd, Maryland Heights, MO 63043
Phone: (314) 983-9977

Lowe's Home Improvement

Belleville, IL
3.8
★★★★★
  • Pros icon Timely Service
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers
  • Pros icon Dependable Service

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.google.com/aclk
Address: Belleville, IL
Phone: (618) 239-3908

Empire Supply Co

St. Louis, MO
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon No-Hassle Pricing
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://empiresupplystl.com/
Address: 7286 Manchester Rd, St. Louis, MO 63143
Phone: (314) 645-2633

Glass & More Inc. Low price glass repair!

Belleville, IL
3.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Free Quotes
  • Pros icon Good Customer Service
  • Pros icon Reliable Service

Services Offered

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

Website: http://www.jimsglassandmore.com/
Address: 5400 N Belt W, Belleville, IL 62226
Phone: (618) 222-1197

Energy View Windows - Home Improvements

Hazelwood, MO
3.7
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Energy-Efficient Options
  • Service icon Architectural Glass

Website: http://www.energyviewhomeimprovements.com/
Address: 7220 N Lindbergh Blvd #350, Hazelwood, MO 63042
Phone: (314) 656-1437

Spectrum Glass & Tinting

O'Fallon, MO
3.6
★★★★★
  • Pros icon Dependable Service
  • Pros icon Free Quotes
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.glassandwindows-mo.com/
Address: 955 W Terra Ln, O'Fallon, MO 63366
Phone: (636) 238-4315

All About Glass

Arnold, MO
3.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Dependable Service
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Heavy Glass
  • Service icon Doors
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.allaboutglassstl.com/
Address: 1339 Jeffco Blvd, Arnold, MO 63010
Phone: (636) 461-2900

Masonry & Glass Systems Inc

St. Louis, MO
3.6
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon No-fee Quotes
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service

Services Offered

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

Website: https://www.masonryglass.com/
Address: 1503 S Kingshighway Blvd, St. Louis, MO 63110
Phone: (314) 535-6515

Window Nation

Overland, MO
3.6
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Award-Winning
  • Pros icon Excellent Customer Service
  • Pros icon Dependable Service

Services Offered

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

Website: https://www.windownation.com/stlouis-showroom/
Address: 1913 Belt Way Dr, Overland, MO 63114
Phone: (314) 279-8249

Sears Window Replacement

Bridgeton, MO
3.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Consistent Workmanship
  • Pros icon No-fee Quotes

Services Offered

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

Website: https://www.searshomeservices.com/locations/hi/window-replacement/mo/bridgeton
Address: 12930 Hollenberg Dr, Bridgeton, MO 63044
Phone: (314) 325-8649

STL Windows and Doors

St. Louis, MO
3.6
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Consistent Workmanship
  • Pros icon No-fee Quotes
  • Pros icon Reliable Appointment Windows

Services Offered

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

Website: https://stlwindowsanddoors.com/
Address: 12150 Lackland Rd, St. Louis, MO 63146
Phone: (314) 277-5952

Building Envelope Experts

Fenton, MO
3.6
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon Free Quotes
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers

Services Offered

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

Website: https://www.buildingenv.com/
Address: 1576 Fencorp Dr Suite E, Fenton, MO 63026
Phone: (314) 310-7878

Missouri Glass Company

St. Louis, MO
3.4
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Dependable Service

Services Offered

  • Service icon Residential Windows
  • Service icon Heavy Glass
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Commercial Windows

Website: http://www.missouriglass.com/
Address: 1717 Ohio Ave, St. Louis, MO 63104
Phone: (314) 664-5100

Clear Window Technology

Ballwin, MO
3.4
★★★★★
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Consistent Workmanship
  • Pros icon Price Transparency

Services Offered

  • Service icon Architectural Glass
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Double-Hung
  • Service icon Bay Windows

Website: http://www.clearwindowtech.com/
Address: 15009 Manchester Rd #267, Ballwin, MO 63011
Phone: (314) 966-2666

Glass America

New Baden, IL
3.4
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Good Customer Service
  • Pros icon Free Quotes
  • Pros icon Dependable Service

Services Offered

  • Service icon Custom Windows
  • Service icon Commercial Windows

Website: https://glassusa.com/
Address: 302 S Railway St, New Baden, IL 62265
Phone: (618) 588-2023

Lakeside Renovation & Design

Chesterfield, MO
3.4
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Arrives on Time
  • Pros icon Reliable Service
  • Pros icon Locally Recognized for Quality

Services Offered

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

Website: https://lakesiderenovationanddesign.com/
Address: 139 Chesterfield Industrial Blvd, Chesterfield, MO 63005
Phone: (636) 978-5000

Alenco Inc.

Fenton, MO
3.3
★★★★★
  • Pros icon Arrives on Time
  • Pros icon Consistent Workmanship
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Windows
  • Service icon Glass Showers
  • Service icon Sliding Glass

Website: https://www.alenconline.com/remodelers-st-louis/
Address: 5 Cassens Ct, Fenton, MO 63026
Phone: (314) 480-6264

Banner Construction

St. Louis, MO
3.3
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon No-fee Quotes
  • Pros icon Reliable Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Double-Hung

Website: https://bannerconstruction.com/
Address: 1177 N Price Rd, St. Louis, MO 63132
Phone: (314) 310-1133

How Installing Energy-Efficient Windows in East Alton Saves You Money

Energy-efficient windows can benefit you in several ways. Here are a few reasons you may want to take the plunge and make the switch:

  • Save money on power bills: Since energy-efficient windows lower how much energy you need to heat or cool your home, the switch can help you save around $283 annually on your energy bills in East Alton.
  • Reduce your carbon footprint: By using less energy once switching to energy-efficient windows, you'll also be decreasing your indirect greenhouse gas emissions by about 12%, according to Energy Star.
  • Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out damaging UV rays, reducing fading of your furniture, carpet and other valuables.
  • Protect your investment: Upgrading your windows is an important part of maintaining your property and its real estate value, especially if you have an older home.

Estimated Cost of Window Replacement in East Alton

Windows come in various styles, purposes and shapes, so costs and services will vary greatly depending on several factors. Below, we detail the average cost and services that you can get from window installers.

How Much Do New Windows Cost?

Typically, East Alton homeowners can anticipate their window replacements to range from $250 to $1,200. The most common installations sit at around $600. This is because the cost of window installations depend on several factors specific to your home, like the size, material and number of windows you need to install, as well as the location of your property.

Bear in mind that energy-efficient windows may have a higher price, but Energy Star predicts the upgrade will save you between $101 and $583 a year when installing single-pane windows and between $27 and $197 a year when installing double-pane, clear glass windows. Your exact savings will vary depending on your local climate, energy rates and individual home characteristics.

Costs will also vary based on the material you want for your window frames. Aluminum frames have the lowest price. They're sturdy, light and maintenance-free, but offer poor insulation. Vinyl frames are somewhat expensive and offer good insulation. Composite frames made from wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They're also aesthetically pleasing and offer decent insulation for your home.

What Services do Window Installers Offer?

The first step when planning a window replacement is to think about whether you should get a full-frame or pocket installation.

Full-frame installations involve replacing the full window, including the frame, trim and sill. You most likely need a full-frame installation when you want a new style or your window has considerable deterioration. Because full-frame installations are more involved, they will increase the total cost. Pocket installations (also known as retrofits) are when you replace a window while leaving the existing frame. Pocket installations are on the simpler end and won't cost as much, but you can't do this type of installment if you have any pre-existing rot or water damage.

If you're unsure which type of window installation service you should get, your installer can help you out. Typically, the choice is based on factors such as the age and condition of the home, the type of building material, budget and time restrictions.

Best Overall

Renewal by Andersen

★★★★★
4.5

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

Best Affordability

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Lifetime warranty
  • Large serice area
  • Quality of service will depend on your area

Best for Residential Windows

Window Nation

★★★★★
4

  • Custom designs
  • Award-winning company
  • Wide variety of products and services
  • Installation not covered by warranty

How We Choose the Best Window Installers in East Alton

In our search to find the most reliable, eco-friendly window installers in East Alton, EcoWatch chose the above companies as the best window installation companies in the city. Along with energy efficiency, we assessed window companies all across the state and assigned rankings based on the following methodology:

Service Area

Since this is a guide for East Alton, we paid more attention to companies that serve the city. There are certainly reputable providers that didn't make the cut because of the low odds that they would serve the average homeowner in East Alton.

Work Quality

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

Customer Reviews

We analyzed trends in recent online reviews to find the companies with the most consistent customer satisfaction. Customer satisfaction might be the most important factor, as it reflects the quality of services across most other categories, including quality of installation, professionalism, warranty, cost, quality of parts and more.

Cost

This one is a give-and-take: as with other services, cheap window installers may not provide the highest quality service. Still, we want to ensure we're highlighting companies that offer a variety of price and financing options so they're accessible to most homeowners.

Warranty

As discussed, windows are a hefty investment, so you'll want to be certain that investment is protected. Window installation companies that give you 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 been in the industry for quite some time. Window installation companies that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.

East Alton, IL Window Replacement FAQs

What is the average cost to install windows in a home?

The national average cost to replace a single window is around $600 but can range from $200 to $1,200, depending on several factors. The price is usually influenced by the size of the window, the type and material of the window and the location of your property. Also, bear in mind that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.

Which kind of window is the best?

Generally, double-pane windows will be more efficient than single-pane windows and windows that don't open are more efficient than windows that do. To be sure you'll have 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.

What services do window replacement companies do?

Window installation professionals visit your property to remove your old windows and replace them with new ones. Some providers install products sold by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation.

How often should you replace your windows?

Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, they probably need to be replaced. Other than that, if your windows have damage anywhere on them, or they have become difficult to open or close, they may be in need of replacement.

Should I replace my windows all at once?

If your windows are greater than 20 years old, you probably need to replace all of them. At that point, they are typically 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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