20 Best Window Companies in South Riding, VA (2024 Reviews)

Looking to replace your windows? We’ve got all the information you need in this list of the best window installation companies.

We analyzed all the top-rated window companies in South Riding 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 February 01, 2024

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 top window installation companies in South Riding may not seem like the most interesting article on EcoWatch, but trust us, windows have a more direct impact on your life than you might think. During the summer months, the last thing you want is your cool air to leak out of your outdated, drafty windows.

Thankfully, helping you save money with upgraded windows also helps our goals of conserving energy and the resources it takes to generate it.

Efficient windows are especially important in South Riding, where the temperature varies throughout the year. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $353 a year.

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 South Riding

The EcoWatch Reviews team examined several window providers in South Riding to find the best ones for our readers. The providers in this article passed our review standards for energy-efficient offerings as well as local expertise, price, customer service and beyond.

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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This provider has 27 years of experience in the windows industry, and it has become one of the most reputable companies in the business. Its reputation is backed by several positive reviews from customers online.

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

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 South Riding?

Even though prices are not available on Andersen’s website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can ask for a free quote on its website for more information about the cost.

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 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 industry, and it has become one of the most reputable companies in the business. Its reputation is backed by several positive reviews from customers online.

You may want to consider going with 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

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 want Energy Star windows when inquiring.

How much does Window World cost in South Riding?

Even though prices are not available on Window World’s website, 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 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 is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This provider has 16 years of experience in the windows industry, and it has become one of the most reputable companies in the business. Its reputation is backed by several positive reviews from customers online.

You may want to consider going with Window Nation if you're interested in 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 offerings are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.

How much does Window Nation cost in South Riding?

Even though prices are not available on Window Nation’s website, 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. You can ask for a free quote on its website for more information about the cost.

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 is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This provider has 20 years of experience in the windows industry, and it has become one of the most reputable companies in the business. Its reputation is backed by several 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

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

How much does Universal Windows Direct cost in South Riding?

Even though prices are not available on Universal’s website, 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. You can ask for a free quote on its website for more information about the cost.

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 provider has 23 years of experience in the windows industry, and it has become one of the most reputable companies in the business. Its reputation is backed by several positive reviews from customers online.

You may want to consider going with Aeroseal if you're interested in a company that installs windows and doors at businesses across the Eastern U.S.

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 make sure you mention that you want Energy Star windows when inquiring.

How much does Aeroseal Windows cost in South Riding?

Even though prices are not available on Aeroseal’s website, it provides high-quality windows at a competitive price point. You can ask for a free quote on its website for more information about the cost.

We have tried to remain unbiased and transparent by including pros and cons for every company. Additionally, any partnerships do not influence our reviews.

More Window Companies in South Riding

Renewal by Andersen of Capital Region - Sterling

Sterling, VA
4.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Sliding Glass Doors
  • Service icon Window Install & Replacement
  • Service icon Andersen
  • Service icon Commercial Windows
  • Service icon Bay Windows
  • Service icon Skylights

Website: https://www.renewalbyandersen.com/window-company/085-capital-region/retailer
Address: 45449 E Severn Way #149, Sterling, VA 20166
Phone: (703) 204-4595

Window World of Washington DC

Chantilly, VA
4.1
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Double-Hung
  • Service icon Window Install & Replacement
  • Service icon Storm Doors
  • Service icon Sliding Glass Doors
  • Service icon Bay Windows

Website: https://www.windowworlddc.com/
Address: 4116 Walney Rd Suite J, Chantilly, VA 20151
Phone: (703) 378-7999

Champion Replacement Windows of Baltimore

Rosedale, MD
3.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Window Repair
  • Service icon Storm Doors
  • Service icon Sliding Glass Doors

Website: https://www.championwindow.com/Baltimore/
Address: 23 Fontana Ln, Rosedale, MD 21237
Phone: (410) 202-8636

Window Nation

Lorton, VA
4.4
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Window Install & Replacement
  • Service icon Sliding Glass Doors
  • Service icon Bay Windows

Website: https://www.windownation.com/northern-va-showroom
Address: 8198 Terminal Rd #105, Lorton, VA 22079
Phone: (703) 372-4540

Window Replacement DC - Reston

Reston, VA
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Vinyl Frames
  • Service icon Mirrors
  • Service icon Window Install & Replacement
  • Service icon Glass Repair
  • Service icon Glass Showers
  • Service icon Storm Windows
  • Service icon Window Repair
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung
  • Service icon Wood Frames
  • Service icon Custom Window Designs
  • Service icon Glass Doors
  • Service icon Andersen
  • Service icon Skylights
  • Service icon Sliding Glass Doors
  • Service icon Aluminum Frames
  • Service icon Fiberglass Frames
  • Service icon Bay Windows
  • Service icon Commercial Windows

Website: https://window-replacement-dc.com/reston/
Address: 1890 Preston White Dr #383, Reston, VA 20191
Phone: (702) 703-3190

Windows On Washington

Sterling, VA
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Timely Service

Services Offered

  • Service icon Double-Hung
  • Service icon Window Install & Replacement
  • Service icon OKNA
  • Service icon Sliding Glass Doors
  • Service icon Vinyl Frames
  • Service icon Energy-Efficient Options
  • Service icon Bay Windows

Website: http://www.windowsonwashington.net/
Address: 23465 Rock Haven Way #120, Sterling, VA 20166
Phone: (703) 378-1190

Modern Remodeling Inc

Manassas, VA
4.8
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Window Install & Replacement
  • Service icon Commercial Windows

Website: https://www.modernremod.com/
Address: 10550 Associates Ct, Manassas, VA 20109
Phone: (703) 361-9944

Liberty Home Remodeling

Chantilly, VA
4.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Residential Windows

Website: https://www.libertyhomeremodeling.com/
Address: 14100 Sullyfield Cir Suite 500, Chantilly, VA 20151
Phone: (703) 481-8500

Beyond Exteriors

Chantilly, VA
4.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Window Install & Replacement
  • Service icon Commercial Windows

Website: https://www.beyondexteriors.com/
Address: 14524 Lee Rd, Chantilly, VA 20151
Phone: (703) 997-9175

Universal Windows Direct of Northern Virginia

Chantilly, VA
4.5
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Vinyl Frames
  • Service icon Window Install & Replacement
  • Service icon Fiberglass Frames
  • Service icon Glass Doors
  • Service icon Energy-Efficient Options

Website: https://www.universalwindowsdirect.com/northern-virginia
Address: 4005 Westfax Dr Suite A, Chantilly, VA 20151
Phone: (703) 705-4399

A-1 Glass Co Inc

Manassas, VA
4.4
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Doors
  • Service icon Tempered Glass
  • Service icon Window Repair
  • Service icon Mirrors
  • Service icon Commercial Windows
  • Service icon Window Install & Replacement
  • Service icon Glass Repair
  • Service icon Glass Showers
  • Service icon Custom Glass

Website: http://www.a1glasscompany.com/
Address: 7278 Centreville Rd, Manassas, VA 20111
Phone: (703) 368-4627

Tri County Windows and Siding

Vienna, VA
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Bay Windows
  • Service icon Sliding Glass Doors
  • Service icon Window Install & Replacement
  • Service icon Storm Doors

Website: http://www.tricountywindowsva.com/
Address: 200 Lawyers Rd NW #1629, Vienna, VA 22183
Phone: (703) 472-6330

C2 Operations

Leesburg, VA
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Window Install & Replacement

Website: https://c2operations.com/
Address: 18 Sycolin Rd SE, Leesburg, VA 20175
Phone: (703) 651-6677

Bright Side Exteriors

Centreville, VA
3.3
★★★★★
  • Pros icon Free assessment

Services Offered

  • Service icon Window Repair
  • Service icon Fiberglass Frames
  • Service icon Glass Doors
  • Service icon Window Install & Replacement

Website: https://brightsidevirginia.com/
Address: 13953 Big Yankee Ln, Centreville, VA 20121
Phone: (703) 213-7461

Pella Windows & Doors of Tysons Corner

Vienna, VA
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Fiberglass Frames
  • Service icon Bay Windows
  • Service icon Sliding Glass Doors
  • Service icon Window Repair
  • Service icon Pella
  • Service icon Double-Hung
  • Service icon Vinyl Frames
  • Service icon Window Install & Replacement
  • Service icon Wood Frames
  • Service icon Glass Doors

Website: http://www.pellabranch.com/northern-virginia/showrooms/vienna/
Address: 8150 Leesburg Pike Suite 140, Vienna, VA 22182
Phone: (301) 354-3689

Prime Exteriors

Ashburn, VA
3.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Residential Windows

Website: https://www.primexteriors.com/
Address: 20130 Lakeview Center Plaza Ste. 400, Ashburn, VA 20147
Phone: (703) 286-9498

Home Exteriors LLC.

Manassas, VA
3.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Sliding Glass Doors
  • Service icon Window Repair
  • Service icon Commercial Windows
  • Service icon Window Install & Replacement
  • Service icon Dormer Windows

Website: http://www.homexteriorsllc.com/
Address: 8702 Jackson Ave, Manassas, VA 20110
Phone: (703) 349-2213

The Window Man

Fairfax, VA
4.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Marvin
  • Service icon Fiberglass Frames
  • Service icon Window Install & Replacement
  • Service icon Storm Windows

Website: http://www.thewindowman.com/
Address: 3853-A Pickett Road, Fairfax, VA 22031
Phone: (703) 978-9888

Great American Glass Co

Sterling, VA
3.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Screen Repair
  • Service icon Window Install & Replacement
  • Service icon Glass Doors
  • Service icon Glass Repair
  • Service icon Mirrors
  • Service icon Commercial Windows
  • Service icon Glass Showers
  • Service icon Window Repair

Website: http://www.greatamericanglass.com/
Address: 106 Oakgrove Rd, Sterling, VA 20166
Phone: (703) 481-0500

Trusty Glass and Door

Ashburn, VA
3.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Sliding Glass Doors
  • Service icon Glass Showers
  • Service icon Custom Glass
  • Service icon Window Install & Replacement
  • Service icon Glass Doors
  • Service icon Commercial Windows
  • Service icon Window Repair
  • Service icon Glass Repair
  • Service icon Mirrors

Website: https://trustyglassandoor.com/
Address: 44075 Pipeline Plaza, Ashburn, VA 20147
Phone: (571) 749-8115
South Riding Window Cost Calculator

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

There are quite a few perks of switching to energy-efficient windows. A few reasons you may want to consider making the change are the following:

  • Save on energy bills: The Department of Energy estimates that heat gained or lost via windows makes up about 25-30% of energy use in your home. Installing energy-efficient windows can help lower that number, which helps you save $353 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 your home is on the older side.
  • Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
  • Reduce your carbon footprint: Since energy-efficient windows improve the insulation in your house, you can cut your carbon footprint by about 12%, according to Energy Star.

Estimated Cost of Window Replacement in South Riding

Each window installation company offers varying services and has different costs depending on several factors.

How Much Do New Windows Cost?

Generally, homeowners in South Riding can expect that most window installations will range from $250 to $1,200, with the average cost at around $600. This is due to the fact that the cost of window installations depend on a variety of 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.

Whether or not you choose energy-efficient windows is another factor that will influence the cost. These will typically cost more than other windows, but on the other hand, you can save about $353 a year on your energy bills in South Riding.

We advise getting free quotes from several window companies to find the one that works best for you.

What Services do Window Installers Offer?

In general, there are two types of window installation services you can get: full-frame and pocket installations.

Full-frame installations entail replacing the complete window, including the trim, sill and frame. You most likely need a full-frame installation when you want a new style or your window has noticeable rot. These installations are more involved and will increase the total cost. A pocket installation involves replacing a window without replacing the frame. So, instead of removing the whole window and reinstalling it, the installer will just slide the replacement window (also called a retrofit or insert window) into the frame.

If you’re still trying to decide which type of installation to get, you can ask your installer and get their recommendation. The choice mostly depends on the age of your window frames and if there’s any damage.

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 South Riding

EcoWatch reviews are different from most reviews, as we’re examining these companies through a sustainability lens. We’ve decided to assess the top window replacement companies in South Riding mainly based on energy efficiency, as it’s the most sustainable option and the best one for homeowners. Energy-efficient windows can lower power bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve the South Riding area 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 in our guide 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

Customer feedback is another super important review factor. If most customers don’t have nice feedback about their service from a certain installer, it won’t be featured on EcoWatch.

Cost

This one is a give-and-take: as with other services, cheap window installation companies are not going to provide the most quality service. On the other hand, we want to ensure we’re highlighting companies that offer 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. That’s why window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

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

South Riding, VA Window Replacement FAQs

How much does window installation cost?

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

Which kind of window is the best?

A window’s energy efficiency is influenced by a variety of factors, including the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are usually the most energy-efficient and are certified by the U.S. Department of Energy.

Do you really have to use a window installation company?

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

How often should you replace your windows?

Windows generally last 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 determine if they need any repairs or replacements.

Should I replace my windows all at the same time?

If your windows are more than 20 years old, it’s most likely 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 once will involve less paperwork and less stress.

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