20 Best Window Companies in Mountainside, NJ (2023 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 Mountainside 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.

The EcoWatch Reviews team is all about helping Mountainside homeowners find eco-conscious solutions for their homes. When it's the middle of winter, your outdated and drafty windows could be making your home harder to heat and costing you more in power bills.

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

Efficient windows are especially important in Mountainside, 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 $290 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 Mountainside

The EcoWatch Reviews team researched dozens of installers across the country to find the top window installation companies for our readers. The installers in this article scored best in our review categories, such as energy-efficient offerings, price, availability, customer service, local expertise 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 offers windows expertise in Mountainside. It's 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. The company has many glowing reviews from customers online.

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, this may be the provider for you.

Energy Efficiency of Window World Windows

Window World appeals to eco-conscious consumers by providing 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 Mountainside?

Even though pricing is not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. You can request a free quote on its website for more information about the cost.

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

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

Energy Efficiency of Renewal by Andersen Windows

Renewal by Andersen appeals to eco-conscious consumers by providing energy-efficient window offerings. 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 Mountainside?

Even though pricing is not readily 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 request 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 has the best window installation for businesses in Mountainside. 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. Aeroseal has been in the window installation industry for around 23 years.

Aeroseal may be the company for you if you want one that installs windows and doors at businesses across the Eastern U.S.

Energy Efficiency of Aeroseal Windows Windows

Aeroseal Windows carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want Energy Star windows when inquiring. 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.

How much does Aeroseal Windows cost in Mountainside?

Prices aren’t listed on Aeroseal’s website, but it provides high-quality windows at a competitive price point. The best way to get more accurate information is to ask for 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 offers the best warranty in Mountainside. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This company has been in business since 2002 and currently provides services to 27 states nationwide. The company has many glowing reviews from customers online.

If you’re looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, this may be the provider for you.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct appeals to eco-conscious consumers by providing energy-efficient window offerings. 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 Mountainside?

Even though pricing is not readily 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 request a free quote on its website for more information about the cost.

One thing to note is that the following companies are national, which means the quality of customer service may depend on your local team. We have tried to be unbiased and transparent by including both pros and cons for each company.

More Window Companies in Mountainside

Renewal by Andersen of NJ/NY Metro

Cranford, NJ
4.4
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.renewalbyandersen.com/window-company/535-nj-ny-metro/retailer
Address: 70 Jackson Dr Suite A, Cranford, NJ 07016
Phone: (908) 497-1020

Window World of Jersey Coast

Edison, NJ
4.3
★★★★★
  • 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 Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Residential Windows
  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Window Replacement

Website: https://www.jerseycoastwindows.com/
Address: 27 Northfield Ave, Edison, NJ 08837
Phone: (732) 417-5700

Windows & Doors By The Men With Tools

Summit, NJ
4.5
★★★★★
  • 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 Double-Hung
  • Service icon Fast Delivery
  • Service icon Glass Showers
  • Service icon Commercial Windows
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Residential Windows
  • Service icon Window Replacement

Website: https://www.themenwithtools.com/
Address: 444 Springfield Ave, Summit, NJ 07901
Phone: (908) 224-7997

New View Windows and Doors

East Hanover, NJ
4.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

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

Website: http://www.newviewnj.com/
Address: 8 Great Meadow Ln, East Hanover, NJ 07936
Phone: (973) 585-6700

Essex Replacement Doors-Windows

Scotch Plains, NJ
4.3
★★★★★
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: https://essexdoorandwindow.com/
Address: 346 Park Ave A, Scotch Plains, NJ 07076
Phone: (973) 743-8603

NJ Pro Roofing and Painting LLC

Union, NJ
4.3
★★★★★
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

Website: https://njproroofingllc.com/
Address: 985 Roosevelt Ave, Union, NJ 07083
Phone: (908) 477-7667

Royal Prime Windows

Kenilworth, NJ
4.3
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.royalprime.com/
Address: 742 Fairfield Ave, Kenilworth, NJ 07033
Phone: (800) 354-0076

ARDMOR Windows & Doors

Edison, NJ
4.3
★★★★★
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.ardmorwindows.com/
Address: 22 Meridian Rd UNIT 18, Edison, NJ 08820
Phone: (347) 443-8786

Nunez Home Improvement, LLC

Elizabeth, NJ
4.3
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Window Replacement
  • Service icon Double-Hung

Website: https://www.nunezhomepro.com/
Address: 344 Vine St, Elizabeth, NJ 07202
Phone: (973) 518-0612

Window King Of New Jersey / Window Replacement And Installation

Springfield, NJ
4.3
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Timely Service

Services Offered

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

Website: http://windowking.biz/
Address: 500 Morris Ave Unit 116, Springfield, NJ 07081
Phone: (609) 534-7736

Universal Windows Direct of New Jersey

Fords, NJ
4.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.universalwindowsnj.com/
Address: 556 New Brunswick Ave, Fords, NJ 08863
Phone: (732) 738-1500

National Home Improvements

Kenilworth, NJ
4.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

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

Website: http://www.nhi-contractors-nj.com/
Address: 534 Kenilworth Blvd, Kenilworth, NJ 07033
Phone: (908) 307-1031

R and G Roofing - Carpentry and Siding

City of Orange, NJ
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Timely Service

Services Offered

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

Website: https://rghomeimprovement.business.site/
Address: 625 Beach St, City of Orange, NJ 07050
Phone: (973) 324-9461

Lifetime Aluminum

East Hanover, NJ
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

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

Website: https://www.lifetimealuminum.com/
Address: 162 Mt Pleasant Ave, East Hanover, NJ 07936
Phone: (973) 887-1900

Nestify Home

Iselin, NJ
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

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

Website: http://nestifyhome.com/
Address: 33 S Wood Ave Suite 600, Iselin, NJ 08830
Phone: (800) 964-7065

Elite Roofing Solutions LLC

Woodbridge Township, NJ
4.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

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

Website: http://njtrustedroofers.com/
Address: 1015A Main St, Woodbridge Township, NJ 08863
Phone: (908) 338-0782

Madison Door

Madison, NJ
4.1
★★★★★
  • 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 Residential Windows
  • Service icon Sliding Glass
  • Service icon Window Replacement
  • Service icon Fast Delivery
  • Service icon Custom Window Designs

Website: https://www.madisondoor.com/
Address: 297 Main St, Madison, NJ 07940
Phone: (973) 822-1693

Levial USA LLC

Sherman Ave, NJ
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Aluminum Window Frames
  • Service icon Glass Showers
  • Service icon Sliding Glass
  • Service icon Fast Delivery
  • Service icon Double-Hung
  • Service icon Custom Window Designs
  • Service icon Window Replacement

Website: http://levialusa.llc/
Address: 956-E1, Sherman Ave, Elizabeth, NJ 07208
Phone: (908) 352-2484

Glass Doctor of West Orange

West Orange, NJ
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

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

Website: https://glassdoctor.com/west-orange/
Address: 211 Watchung Ave, West Orange, NJ 07052
Phone: (973) 928-8080

Home Services at The Home Depot

Newark, NJ
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.homedepot.com/l/Newark-NJ/NJ/Newark/07103/980/services
Address: 399-443 Springfield Ave, Newark, NJ 07103
Phone: (973) 453-5865
Mountainside Window Cost Calculator

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

When you upgrade to energy-efficient windows, you may see a few benefits, such as:

  • Save money on power bills: Once you switch to energy-efficient windows, you can see a reduction in your bills by about 12% because you'll need less energy to heat or cool your home.
  • Better temperature control in your home: Living in a very cold place like Mountainside can often mean needing your heater to keep your house cool. Energy-efficient windows can lower how much heat is lost through your windows when heating your home.
  • Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Upgrading your windows can improve the insulation in your home and also help increase the value of your property if you decide to sell.
  • Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only insulate your home better, but also filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.

Estimated Cost of Window Replacement in Mountainside

Windows come in different shapes, purposes and styles, so costs and services will vary considerably based on your project. Below, we describe the typical cost and services that you'll find from window replacement companies.

How Much Do New Windows Cost?

Though the typical to replace a single window is around $600, it can range from $200 to $1,200. These amounts vary depending on specific characteristics of your installation, including number of windows, size, material, the location of your home, type and more.

Bear in mind that energy-efficient windows may cost more upfront, but Energy Star estimates the upgrade will save you between $101 and $583 a year when you install single-pane windows and between $27 and $197 a year when you install double-pane, clear glass windows. Your savings will vary based on your local climate, energy rates and individual home characteristics.

We recommend getting free quotes from several window installation companies to find the right windows and the company that works best for you.

What Services do Window Installers Offer?

The first question to ask yourself when getting new windows is: Do you want a full-frame installation or a pocket installation?

A full-frame installation replaces the total window, such as the windowsill, frame, trim and the window panes. Because this type of installation is more involved, it will cost more than a pocket installation. Pocket installations (or retrofits) entail replacing a window within its existing frame, which makes pocket installations take less time and therefore cost less. However, if the frame has any rot or deterioration, you will most likely need a full-frame installation instead.

Your window installer can help you decide which type of installation you need.

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 Mountainside

In our search to make your home improvements easier and more eco-friendly in Mountainside, the EcoWatch Reviews team landed on the above companies as the best window installation companies in the city. We have evaluated the top window replacement companies in Mountainside mainly based on their energy efficient offerings, as it's the most sustainable option and the best one for homeowners. Energy-efficient windows have been shown to cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

Because this is a guide for Mountainside, we gave more points to companies that provide services to the city. There are other reputable providers that didn't make our list because of the low odds that they would serve the average homeowner in Mountainside.

Work Quality

When selecting new windows, the quality and variety of services often plays just as important of a role in overall efficiency and performance as the brand of window you choose. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

Another self-explanatory yet super important review factor is customer feedback. If most customers don't have good feedback about their experience with a certain company, you won't see it featured on EcoWatch.

Cost

This one is a give-and-take: as with other services, cheap window companies may not provide the most quality service. Still, we want to make sure we're highlighting companies that provide a variety 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 offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Because of Mountainside's climate, homeowners need to be wary of water damage, rot and low efficiency. We factored in local experience to reflect the ability of Mountainside window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.

Mountainside, NJ Window Replacement FAQs

How much does a window install cost?

The national average cost to replace one window is around $600 but can range from $200 to $1,200, based on several factors. The price is generally influenced by the type and material of the window, the size of the window and the location of your property. Also, bear 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 do not open are more efficient than windows that do. If you want to be sure you'll get the most energy-efficient windows, look for models with the blue Energy Star certification — this means they're certified energy-efficient by the U.S. Department of Energy.

Can you replace your own windows?

While it is possible to 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 won't have to spend the time and effort to do it yourself.

How long does it typically take to install windows?

Because the average installation time is 30 minutes per window, around 16 windows can be installed during an 8-hour work day.

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