20 Best Window Companies in Knightdale, NC (2025 Reviews)

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

We analyzed all the top-rated window companies in Knightdale 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 January 24, 2025

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 environmentally friendly energy sources like wind and solar are important when it comes to decreasing your carbon footprint, improving your home’s energy efficiency can also have a large impact on home energy conservation. If your windows are outdated or damaged, you could be sending 25-30% of your house’s heat or cool air right out of them.

Installing upgraded, efficient windows on your property can help you save money each month on your electric bills — and you can help the environment, too.

So if you’re building a new home, renovating or updating your windows in Knightdale, this guide is the best place to get started.

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Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
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Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Save 35% + $100 off per window!
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Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
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Best Window Installation & Replacement Companies in Knightdale

The EcoWatch Reviews team examined dozens of window installation companies in Knightdale to find the best ones for our readers. The installers we’ve mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, price, customer service and beyond.

Window World logo
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 Knightdale. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This provider has 27 years of experience in the window installation industry, and it has established itself as one of the most reputable companies in Knightdale. Its reputation is backed by several positive reviews on customer 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 right provider 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’re interested in Energy Star windows when inquiring.

How much does Window World cost in Knightdale?

Though pricing information is not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to know for sure.

Renewal by Andersen logo
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 Knightdale. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This provider has 27 years of experience in the window installation industry, and it has established itself as one of the most reputable companies in Knightdale. Its reputation is backed by several positive reviews on customer 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 right provider 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’re interested in Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Knightdale?

Though pricing information 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. Requesting a free quote on its website is the best way to know for sure.

Aeroseal Windows logo
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 Knightdale. 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 provider has 23 years of experience in the window installation industry, and it has established itself as one of the most reputable companies in Knightdale. Its reputation is backed by several 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, Aeroseal may be the right provider 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’re interested in Energy Star windows when inquiring.

How much does Aeroseal Windows cost in Knightdale?

Though pricing information is not readily available on Aeroseal’s website, it provides high-quality windows at a competitive price point. Requesting a free quote on its website is the best way to know for sure.

Window Nation logo
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 Knightdale. It's 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 window installation industry, and it has established itself as one of the most reputable companies in Knightdale. Its reputation is backed by several positive reviews on customer review websites.

If you’re looking for a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms, Window Nation may be the right provider for you.

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 be sure to mention that you’re interested in Energy Star windows when inquiring.

How much does Window Nation cost in Knightdale?

Though pricing information is not readily 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. Requesting a free quote on its website is the best way to know for sure.

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

More Window Companies in Knightdale

Renewal by Andersen

Garner, NC
4.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

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

Website: https://renewalnc.com/
Address: 105 Sigma Dr, Garner, NC 27529
Phone: (919) 701-4082

Champion Replacement Windows of Raleigh

Durham, NC
4.5
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.championwindow.com/Raleigh/
Address: 4018 Patriot Dr Suite 120, Durham, NC 27703
Phone: (919) 439-4475

Window Nation

Raleigh, NC
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

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

Website: https://www.windownation.com/raleigh-durham-window-replacement/
Address: 9121 Anson Way, Raleigh, NC 27615
Phone: (919) 727-4140

Goliath Roofing Inc

Knightdale, NC
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation

Website: http://callgoliathroofing.com/
Address: 7417 Knightdale Blvd STE 102, Knightdale, NC 27545
Phone: (919) 600-9279

Early Bird Glass inc

Raleigh, NC
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Custom Glass
  • Service icon Mirrors
  • Service icon Glass Showers
  • Service icon Glass Doors

Website: https://earlybirdglass.com/
Address: 4809-125 Hargrove Rd, Raleigh, NC 27616
Phone: (984) 789-7017

Window Depot USA of Raleigh NC

Raleigh, NC
5.0
★★★★★
  • 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/Installation
  • Service icon Triple Pane Glass
  • Service icon Bay Windows
  • Service icon Vinyl Frames
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung
  • Service icon Glass Doors

Website: https://windowdepotraleigh.com/
Address: 148 Annaron Ct #160, Raleigh, NC 27603
Phone: (919) 801-2506

Raleigh Windows and Siding, LLC

Raleigh, NC
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Showers

Website: http://www.raleighwindowsandsiding.com/
Address: 6003 Chapel Hill Rd #113, Raleigh, NC 27607
Phone: (855) 725-9463

AJT Construction, Inc.

Raleigh, NC
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

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

Website: http://ajtraleigh.com/
Address: 9220 Fairbanks Dr #230, Raleigh, NC 27613
Phone: (919) 848-3159

Oak City Roofing

Cary, NC
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Skylights

Website: https://www.oakcityroofing.com/
Address: 113 Felspar Way, Cary, NC 27518
Phone: (919) 535-4278

Kelly Window and Door, Inc.

Cary, NC
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.kellywindowanddoor.com/
Address: 111 Woodwinds Industrial Ct, Cary, NC 27511
Phone: (919) 461-0010

Snover Contracting

Benson, NC
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

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

Website: http://snover-contracting.com/
Address: 7288 Benson Hardee Rd, Benson, NC 27504
Phone: (919) 437-9451

West Shore Home

Raleigh, NC
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

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

Website: https://westshorehome.com/locations/raleigh-nc/
Address: 1203 N New Hope Rd, Raleigh, NC 27610
Phone: (919) 296-3876

NC Siding and Windows, Inc.

Raleigh, NC
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

Website: http://www.ncsidingandwindows.com/
Address: 3035 Barrow Dr, Raleigh, NC 27616
Phone: (919) 872-6262

Glass Solutions

Garner, NC
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Repair
  • Service icon Window Repair
  • Service icon Window Replacement/Installation
  • Service icon Custom Glass
  • Service icon Glass Showers

Website: https://www.glasssolutionsnc.com/
Address: 5255 Raynor Rd, Garner, NC 27529
Phone: (919) 772-1007

Glass Doctor of Raleigh

Raleigh, NC
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

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

Website: https://glassdoctor.com/raleigh
Address: 5912 Triangle Dr, Raleigh, NC 27617
Phone: (919) 571-3350

City Mirror & Glass, Inc.

Cary, NC
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Window Repair
  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Window Replacement/Installation
  • Service icon Glass Repair
  • Service icon Custom Glass

Website: http://www.citymirrorandglass.com/
Address: 100 Woodwinds Industrial Ct suite c, Cary, NC 27511
Phone: (919) 377-8463

My Guys Remodeling

Apex, NC
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.myguysremodeling.com/
Address: 1109 Classic Rd, Apex, NC 27539
Phone: (919) 679-9758

Glass Doctor of Central Carolina

Dunn, NC
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

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

Website: https://glassdoctor.com/dunn
Address: 1209 N Ellis Ave, Dunn, NC 28334
Phone: (910) 892-0441

Rice's Glass Company

Carrboro, NC
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://ricesglasscompany.com/
Address: 107 Lloyd St, Carrboro, NC 27510
Phone: (919) 967-9214

Window World of Fayetteville

Spring Lake, NC
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://www.windowworldfayetteville.com/
Address: 515 N Bragg Blvd, Spring Lake, NC 28390
Phone: (910) 436-2966
Knightdale Window Cost Calculator

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

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

  • Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Upgrading your windows can make your home more comfortable and also help raise the value of your house if you decide to sell.
  • Decrease your carbon footprint: By using less energy once switching to Energy Star certified windows, you’ll also be decreasing your indirect greenhouse gas emissions by about 12%, according to Energy Star.
  • Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
  • Save on electricity bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of household energy use. Upgrading to energy-efficient models can help lower how much energy is used in your home, therefore saving you about 12% more on your bills.

Estimated Cost of Window Replacement in Knightdale

Let’s take a look at the cost of installing new windows and the kinds of services you may need for your home.

How Much Do New Windows Cost?

Typically, homeowners in Knightdale can anticipate that most replacement window installations will range from $250 to $1,200, with the average cost at around $600. These estimates vary depending on specific characteristics of your installation, including number of windows, the location of your home, type, size, material and more.

Whether or not you want to install energy-efficient windows is another factor that will affect the cost. These will almost always cost more than other windows, but on the other hand, you can save about $360 a year on your energy bills in Knightdale.

How much your window installation costs will also vary depending on the kind of window material you choose for the frames. Wood windows are generally the most expensive, though it depends on whether they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are more efficient.

What Services do Window Installers Offer?

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

Full-frame installations entail replacing the complete window, including the trim, frame and sill. Full-frame installations are necessary when you want a new style or your window has noticeable damage. These installations are more involved and will increase the total cost. Pocket installations are simpler and won’t cost as much, as they involve merely replacing the window within its existing frame. But if the frame has any damage or deterioration, you should opt for a full-frame installation instead.

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

Advertisement

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Save 35% + $100 off per window!
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 Knightdale

EcoWatch reviews differ from other reviews since we evaluate these companies through a sustainability lens. We have reviewed the best window installers in Knightdale mostly based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. Energy-efficient windows can 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 Knightdale, we paid more attention to companies that serve the city. There are certainly reputable providers that didn’t make our list because of the low odds that they would serve the average homeowner in Knightdale.

Work Quality

When picking new windows, the quality and breadth of services often plays just as important of a role in overall efficiency and performance as the brand you opt for. 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

We analyzed patterns in recent customer feedback to determine the companies with the most consistent customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across nearly every category, including warranty, professionalism, quality of installation, quality of parts, cost and more.

Cost

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

Warranty

Protecting your investment in new windows is important. That’s why window installation companies that have 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 proven track record in the industry. Window installers that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.

Knightdale, NC Window Replacement FAQs

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

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

What are the types of windows?

There are several different kinds of windows you can get for your house, including picture windows, transom windows, awning windows, slider windows, casement windows, double-hung and single-hung windows and bay windows.

Do you really have to use a window installation company?

You should use a window installation professional whenever you need to replace your windows. Installing windows is a complicated process that can be difficult to do on your own, so it’s best left to the professionals.

What time of year is a good time to replace my windows?

Even though you can install windows any time of year, warmer weather is generally better for installing replacement windows. Additionally, it shouldn’t be raining, since rain can make the installation more difficult.