20 Best Window Companies in McNair, VA (2024 Reviews)

If you’re looking to get new windows, our guide to the best window installation companies can help.

We analyzed all the top-rated window companies in McNair 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.

The EcoWatch Reviews team is all about finding solutions for eco-conscious homeowners in McNair. When it’s the middle of summer, your old and leaky windows could be making your home harder to cool and more uncomfortable for you.

That’s not great for either your bank account or the environment, but one of the best window installation companies can help with that.

Because windows are so important for your home, selecting the right company for you is a big choice to make. That’s why the EcoWatch team has put together this list of the best window replacement companies, so you can make an informed decision more easily.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house
Buy One Window, Get One 40% OFF
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Buy 2 Windows, Get 2 Free
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best Window Installation & Replacement Companies in McNair

The EcoWatch Reviews team examined dozens of window providers in McNair to find the best ones for our readers. The providers in this article scored best in our review categories, such as 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 provides windows expertise in McNair. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This window installation company has been in business since 1995 and currently services 200 locations nationwide. The provider has many glowing reviews from customers online.

It is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.

Energy Efficiency of Window World Windows

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 windows are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.

How much does Window World cost in McNair?

Prices are not available on Window World’s website because 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. Getting a free quote on its website is the best way to get more accurate pricing information.

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 provides the best availability in McNair. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This window installation company has been in business since 1995 and currently services nearly every state except Mississippi and West Virginia. The provider has many glowing reviews from customers online.

It uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.

Energy Efficiency of Renewal by Andersen Windows

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 windows 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 McNair?

Prices are not available on Andersen’s website because the cost of window installment 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. Getting a free quote on its website is the best way to get more accurate pricing information.

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 provides the best window installation for businesses in McNair. It's 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 window installation company has been in business since 1999 and currently services 13 states and Washington D.C. The provider has many glowing reviews from customers online.

It 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 windows are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.

How much does Aeroseal Windows cost in McNair?

Prices are not available on Aeroseal’s website because the cost of window installment differs based on how many and what type(s) of windows you need. However, 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.

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 provides the best warranty in McNair. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This window installation company has been in business since 2002 and currently services 27 states nationwide. The provider has many glowing reviews from customers online.

It 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 windows 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 McNair?

Prices are not available on Universal’s website because the cost of window installment differs based on how many and what type(s) of windows you need. However, 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. Getting a free quote on its website is the best way to get more accurate pricing information.

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 provides the best residential windows in McNair. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This window installation company has been in business since 2006 and currently services residents within 75 miles of its showrooms, which are in 13 states. The provider has many glowing reviews from customers online.

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

How much does Window Nation cost in McNair?

Prices are not available on Window Nation’s website because the cost of window installment differs based on how many and what type(s) of windows you need. However, 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. Getting a free quote on its website is the best way to get more accurate pricing information.

We have tried to remain unbiased and transparent by listing pros and cons for each installer. Additionally, any partnerships do not influence our reviews.

More Window Companies in McNair

Renewal by Andersen of Capital Region - Sterling

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

Services Offered

  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Skylights
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

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

Champion Replacement Windows of Baltimore

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

Services Offered

  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

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

Window World of Washington DC

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

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Vinyl Frames
  • Service icon Bay Windows

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

Window Nation

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

Services Offered

  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Energy-Efficient Options

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 Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Fiberglass Frames
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Mirrors
  • Service icon Skylights
  • Service icon Vinyl Frames
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Storm/Impact Windows
  • Service icon Window Repair
  • Service icon Glass Showers
  • Service icon Glass Repair
  • Service icon Double-Hung
  • Service icon Wood Frames

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

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 Custom Window Designs
  • Service icon Bay Windows
  • Service icon Skylights
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Glass Doors

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

Windows On Washington

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

Services Offered

  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung
  • Service icon Bay Windows

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

Pella Windows & Doors of Tysons Corner

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

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Wood Frames
  • Service icon Double-Hung
  • Service icon Vinyl 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

Liberty Home Remodeling

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

Services Offered

  • Service icon Window Replacement/Installation

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 Free assessment
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

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 Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

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 Custom Glass
  • Service icon Glass Repair
  • Service icon Glass Doors
  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Tempered Glass

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

The Window Man

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

Services Offered

  • Service icon Storm/Impact Windows
  • Service icon Window Replacement/Installation

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

C2 Operations

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

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Double-Hung

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

Modern Remodeling Inc

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

Services Offered

  • Service icon Window Replacement/Installation

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

Bright Side Exteriors

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

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Window Repair

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

Safety Window Glass Repair LLC

Bethesda, MD
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Skylights
  • Service icon Glass Repair
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Window Repair
  • Service icon Triple Pane Glass
  • Service icon Energy-Efficient Options
  • Service icon Custom Glass
  • Service icon Mirrors
  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung

Website: https://safetywindowglassrepair.com/
Address: 7529 Spring Lake Dr Unit C1, Bethesda, MD 20817
Phone: (202) 460-8860

Window and Door Showplace Inc

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

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Bay Windows

Website: http://www.wdshowplace.com/
Address: 6832 Old Dominion Dr Suite 103, McLean, VA 22101
Phone: (703) 506-3650

Main Street Home Improvement

Vienna, VA
3.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.mainstreet-home-improvement.com/
Address: 386 Maple Ave E #211, Vienna, VA 22180
Phone: (703) 587-7762

Prime Exteriors

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

Services Offered

  • Service icon Window Replacement/Installation

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

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

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

  • Protect your investment: The older your home is, the more likely it is that switching to energy-efficient windows will benefit you. Older homes tend to have windows that are outdated, drafty or maybe even damaged in some way. Upgrading your windows could help raise the value of your property if you decide to sell.
  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
  • Save on power bills: Since energy-efficient windows lower how much energy you need to heat or cool your home, they can help you save about $359 annually on your energy bills in McNair.
  • Decrease your carbon footprint: Because energy-efficient windows improve the insulation in your house, you can lower your carbon footprint by about 12%, according to Energy Star.

Estimated Cost of Window Replacement in McNair

Windows come in various shapes, styles and purposes, so costs and services will differ greatly based on several factors. Below, we detail the typical cost and services that you can get from window installation companies.

How Much Do New Windows Cost?

Though the typical cost to replace one window is around $600, it can range from $200 to $1,200. These numbers vary depending on the specifics of your installation, such as type, size, the location of your home, material, number of windows and more.

It’s also worth keeping in mind that energy-efficient windows will usually cost more upfront, but Energy Star predicts that upgrading the windows on your McNair home can mean an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 per 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.

Requesting free quotes from multiple companies is the best way to figure out which one is right for you.

What Services do Window Installers Offer?

In general, there are two kinds of window installation services companies provide: full-frame and pocket installations.

Full-frame installations are usually done when you want a new style or your window has significant rot. With this service, your professionals will replace the full window, including the sill, trim and frame. Pocket installations (also known as retrofits) are when you replace a window within its existing frame. Pocket installations are simpler and won’t cost as much, but you can’t do this kind of installment if you have any pre-existing rot or water damage.

If you’re not sure which kind of window installation service you should get, your installer should be able to help you out. Typically, the choice depends on factors such as the age and condition of the home, the type of building material, budget and time restrictions.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house
Buy One Window, Get One 40% OFF
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Buy 2 Windows, Get 2 Free
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

How We Choose the Best Window Installers in McNair

In our hunt to find the most reliable, eco-friendly window installers in McNair, the EcoWatch Reviews team landed on the above companies as the top window installation companies in the city. Along with energy efficiency, we reviewed several window installers in McNair and ranked them based on the following methodology:

Service Area

Because this is a guide for McNair, we only included companies that cover the city. There are other reputable providers that didn’t make the cut because they wouldn’t be able to serve homeowners in McNair.

Work Quality

We’re willing to bet that you’re looking for a company to do a great job installing windows. We’ve vetted each company included in our guide to ensure 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 patterns in recent online reviews to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it reflects the quality of services across most other categories, including professionalism, cost, quality of parts, quality of installation, warranty and more.

Cost

Cheaper windows certainly don’t mean better windows, but we know many of our readers try to keep costs as low as possible. When analyzing providers’ prices, we gave higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.

Warranty

Protecting your investment in new windows is important. For that reason, window installation companies that provide 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 a good track record in the industry. Window installation companies that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.

McNair, VA Window Replacement FAQs

How much does window installation cost?

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

What type of window is the best for energy efficiency?

Generally, double-pane windows will be more efficient than single-pane windows and windows that don’t open will be more efficient than windows that do. To be sure you’ll get the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — they’re certified energy-efficient by the U.S. Department of Energy.

When should I use a window installation company?

You should hire a window installation company whenever you want to replace your windows. Installing windows is a complicated process that can be difficult and time-consuming, so it’s best left to the professionals.

Should I replace all my windows at once?

If your windows are more than 20 years old, you probably need to replace all of them. At 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 time.

How long does window installation typically take?

Each window takes around 30 minutes to install based on the type of window. However, the window installation can be a two-day job — or more — if you have a lot of windows that must be installed.