20 Best Window Companies in Sky Lake, FL (2023 Reviews)

Are you looking to upgrade your windows? Our list of the best window installation companies can help you choose the right one for you.

We analyzed all the top-rated window companies in Sky Lake 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 September 15, 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.

Although eco-friendly energy sources like wind and solar are important when it comes to decreasing your carbon footprint, improving your house's energy efficiency can also have a big impact on home energy conservation. Potential leaks or drafts from your windows can make your AC or heater work extra hard in the summer or winter.

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

Unlike other sites, EcoWatch ranks window replacement companies on energy efficiency while also balancing cost, customer satisfaction and service area.

Best Availability

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house

Best Energy-Efficient Features

Champion

★★★★★
4.5

  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty

Window Veteran

Window World

★★★★★
4.5

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

Best Window Installation & Replacement Companies in Sky Lake

The EcoWatch team researched several window installation companies in Sky Lake to find the top ones for our readers. The companies in this article scored best in our review categories, which include energy-efficient offerings, customer service, availability, local expertise, price and more.

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

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World has windows expertise in Sky Lake. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window business for around 27 years. The company has many positive reviews from customers on online review websites.

If you’re looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, Window World may be the company for you.

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 be sure to mention that you’d like Energy Star windows when inquiring.

How much does Window World cost in Sky Lake?

Pricing information is not available on Window World’s website because the cost of window replacement varies greatly depending on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. For more accurate information on the cost, you can get a quote from the company.

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

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen has the best availability in Sky Lake. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window business for around 27 years. The company has many positive reviews from customers on online review websites.

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, Andersen 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 be sure to mention that you’d like Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Sky Lake?

Pricing information is not available on Andersen’s website because the cost of window replacement varies greatly depending on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more accurate information on the cost, you can get a quote from the company.

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 Many years of experience
  • Pros icon Great industry reputation
  • Pros icon Low number of customer complaints
  • Pros icon Manufactures products in-house
  • Pros icon Custom Designs
Cons:
  • Pros icon No lifetime warranty
  • Pros icon Not ideal for residential installations

Aeroseal Windows is an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. This company has 23 years of experience in the window installation business, and it has established itself as one of the best companies in Sky Lake. Its reputation is backed by all the positive reviews on customer review websites.

If you’re looking for a company that installs windows and doors at businesses across the Eastern U.S, this may be the perfect company for you.

Energy Efficiency of Aeroseal Windows Windows

The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more. Not all of Aeroseal’s offerings are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.

How much does Aeroseal Windows cost in Sky Lake?

Aeroseal doesn’t have any pricing information listed on its website, but it provides high-quality windows at a competitive price point. Getting a free quote on its website is the best way to get more accurate pricing information.

We've recommended installers with shining reputations, but keep in mind these are national companies, so the quality of service may differ depending on your local crew. We have tried to remain unbiased and transparent by describing pros and cons for each company reviewed.

More Window Companies in Sky Lake

Window World of Orlando

Sanford, FL
4.4
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Bay Windows
  • Service icon Window Repair
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Commercial Windows
  • Service icon Window Replacement
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Glass Showers

Website: https://www.windowworldorlando.com/
Address: 2290 W Airport Blvd, Sanford, FL 32771
Phone: (407) 389-1400

The Glass Guru

Orlando, FL
4.4
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Full-Service Installations
  • Service icon Glass Showers
  • Service icon Window Repair
  • Service icon Window Replacement
  • Service icon Stained Glass
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Commercial Windows
  • Service icon Residential Windows

Website: https://theglassguru.com/locations/southeast-orlando-fl/
Address: 6663 Narcoossee Rd #130, Orlando, FL 32822
Phone: (407) 378-1987

RBA of Central Florida

Winter Park, FL
4.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

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

Website: https://www.renewalbyandersen.com/window-company/990-orlando-fl/retailer
Address: 1660 Lee Rd, Winter Park, FL 32789
Phone: (407) 803-4722

ARMORVUE Window & Door

Orlando, FL
4.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs

Website: https://www.armorvue.com/locations/orlando-fl/
Address: 8249 Parkline Blvd suite 400/500, Orlando, FL 32809
Phone: (407) 839-7655

FAS Windows & Doors - Corporate Office

Orlando, FL
4.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

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

Website: http://www.faswd.com/
Address: 3020 Mercy Dr Suite F, Orlando, FL 32808
Phone: (407) 478-6658

Home Services at The Home Depot

Orlando, FL
4.1
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.homedepot.com/l/Millenia/FL/Orlando/32839/6367/services
Address: 4403 Millenia Plaza Way, Orlando, FL 32839
Phone: (407) 917-1634

FHIA Remodeling

Orlando, FL
4.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

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

Website: https://www.fhiaremodeling.com/orlando/
Address: 8034 Sunport Dr STE 401, Orlando, FL 32809
Phone: (321) 895-9158

LEI Home Enhancements

Orlando, FL
4.1
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

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

Website: https://leiflorida.com/
Address: 5401 S Kirkman Rd Suite 310, Orlando, FL 32819
Phone: (407) 641-2117

Glass Doctor of Orlando, FL

Winter Park, FL
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Commercial Windows
  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Double-Hung
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Window Repair
  • Service icon Window Replacement

Website: https://glassdoctor.com/orlando-fl/
Address: 2721 Forsyth Rd #165, Winter Park, FL 32792
Phone: (407) 775-5349

Faith Glass & Screen Repair

Orlando, FL
4.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

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

Website: https://glassrepairserviceorlando.com/
Address: 5005 Silver Star Rd Ste C, Orlando, FL 32808
Phone: (321) 635-4652

JK&R Construction | Home Addition Construction Contractors and Home Addition in Orlando, FL

Orlando, FL
3.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

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

Website: https://jkr-construction-roofing.business.site/
Address: 202 Palmetto St #111, Orlando, FL 32824
Phone: (407) 216-6515

Kissimmee Window Replacement

Kissimmee, FL
4.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

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

Website: https://kissimmeewindowreplacement.com/
Address: 314 E Vine St, Kissimmee, FL 34744
Phone: (407) 992-8862

Morgan Exteriors of Orlando

Orlando, FL
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

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

Website: https://www.morganexteriorsinc.com/locations/orlando-fl/
Address: 1255 La Quinta Dr Suite 100, Orlando, FL 32809
Phone: (407) 730-7443

Pella Window and Door Showroom of Orlando, FL

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

Services Offered

  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Fast Delivery
  • Service icon Aluminum Window Frames
  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Energy-Efficient Options
  • Service icon Stained Glass

Website: https://www.pella.com/locations/fl/orlando/
Address: 4306 Shader Rd Suite 100, Orlando, FL 32808
Phone: (407) 831-0600

Continental Windows and Glass Inc.

Orlando, FL
3.8
★★★★★

Services Offered

  • Service icon Window Replacement
  • Service icon Full-Service Installations
  • Service icon Glass Showers
  • Service icon Commercial Windows
  • Service icon Fast Delivery
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Window Repair
  • Service icon Sliding Glass
  • Service icon Tempered Glass

Website: http://www.continentalglass.com/
Address: 4653 L B McLeod Rd STE A, Orlando, FL 32811
Phone: (407) 422-9897

Celebration Window Replacement

Celebration, FL
4.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Bay Windows
  • Service icon Window Replacement
  • Service icon Residential Windows
  • Service icon Double-Hung
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Sliding Glass

Website: https://celebrationwindowsanddoors.com/
Address: 617 Celebration Ave Unit #9, Celebration, FL 34747
Phone: (689) 210-3950

WindowWall

Winter Garden, FL
4.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: http://windowwallfl.com/
Address: 650 Garden Commerce Pkwy, Winter Garden, FL 34787
Phone: (813) 649-8959

Patriot Glass Repair, LLC

Kissimmee, FL
4.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Showers
  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Sliding Glass
  • Service icon Window Repair
  • Service icon Commercial Windows

Website: http://www.patriotglassrepairllc.com/
Address: 2848 E Irlo Bronson Memorial Hwy, Kissimmee, FL 34744
Phone: (321) 443-8427

All Weather Windows

Orlando, FL
3.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

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

Website: https://allweatherwindows.business.site/
Address: 7831 Gilliam Rd, Orlando, FL 32818
Phone: (407) 494-5211

NewSouth Window Solutions

Altamonte Springs, FL
4.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

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

Website: http://newsouthwindow.com/location-orlando/
Address: 820 E Altamonte Dr, Altamonte Springs, FL 32701
Phone: (407) 261-2277
Sky Lake Window Cost Calculator

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

By upgrading to energy-efficient windows, you can take advantage of several benefits, such as:

  • Better temperature control in your home: When you reside in a city like Sky Lake where the summers can get very hot, you usually have to depend on your air conditioner to keep your home cool. Energy-efficient windows can reduce how hard your AC needs to work to cool your home.
  • Reduce your carbon footprint: Decreasing how much energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by 390 pounds per year on average.
  • More efficient energy usage in your household: Because the winters can get very chilly in Sky Lake, homeowners often rely on their heater a lot. Energy-efficient windows reduce how much heat is lost through your windows, which makes it easier to keep your house warm.
  • Protect your investment: If you have a relatively old home, your windows are most likely outdated. Updating your windows can improve the insulation in your home and also help raise the value of your home if you decide to sell.

Estimated Cost of Window Replacement in Sky Lake

Each window installation company provides varying services and has different price points based on a few factors.

How Much Do New Windows Cost?

Even though the national average of replacing one window is about $600, it can range from $200 to $1,200. But prices differ remarkably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also provide door installations and replacements, which have a higher price tag.

It's important to note that windows with the best efficiency may cost more initially but can save you hundreds of dollars by decreasing your energy bills. Investing in Energy Star certified windows can save Sky Lake homeowners $408+ a year when replacing single-pane windows.

Costs will also vary based on the material you choose 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?

The first thing to ask yourself when planning to replace your windows is: Do you need a full-frame installation or a pocket installation?

Full-frame installations are usually recommended when you want to change the style of your windows or your window has significant rot or deterioration. With this service, your installers will replace the complete window, including the sill, frame and trim. A pocket installation involves replacing a window within the existing frame. This means instead of taking out the whole unit and rebuilding it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.

If you're still debating which type of installation you need, you can ask your provider and get their advice. The decision mostly is influenced by how old the frames are and if there's any damage present.

Best Availability

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house

Best Energy-Efficient Features

Champion

★★★★★
4.5

  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty

Window Veteran

Window World

★★★★★
4.5

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

How We Choose the Best Window Installers in Sky Lake

In our search to make your home improvements easier and more eco-friendly in Sky Lake, EcoWatch examined dozens of companies before deciding on these. We've reviewed the best window installation companies in Sky Lake mostly based on their energy efficient offerings, as it's the most sustainable option and the best one for homeowners. Energy-efficient windows can reduce your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

This one is self-explanatory, but we've chosen to highlight window installation companies that serve the Sky Lake area so you can find the best window installation company near you.

Work Quality

When it comes to new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the brand you choose. We do give window installers more points if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

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

Cost

Cheaper windows certainly don't mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing providers' prices, we awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.

Warranty

As discussed, windows are a sizable investment, so you'll want to make sure 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 Sky Lake's climate, homeowners will want to mitigate low efficiency, rot and water damage. We factored in local experience to reflect the ability of Sky Lake window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.

Sky Lake, FL Window Replacement FAQs

How much does window installation cost?

The national average cost to install a single window is around $600 but can range from $200 to $1,200, depending on a few different factors. The price is usually influenced by the type and material of the window, the location of your property and the size of the window. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.

What type 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. If you want to be sure you'll have the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — that means they're certified energy-efficient by the U.S. Department of Energy.

Can you install your own windows?

Even though you can install your own windows, doing so is time-consuming and requires a lot of experience with home improvement projects. Hiring a professional can help ensure that the job is done properly and that you can avoid spending the time and effort of doing it yourself.

How often should you replace windows?

Windows usually last about 20 to 30 years, but anytime you notice damage on your windows, it's a good idea to have them looked at by an expert to see if they need any repairs or replacements.

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