20 Best Window Companies in Dover, NJ (2025 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 Dover 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.

A review of the top window replacement companies in Dover may not seem like the most captivating article on EcoWatch, but trust us, windows have more of an impact on your life than you might realize. During the winter months, the last thing you want is your heat to leak out of your outdated, drafty windows.

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

We’ve made a guide on the best installation companies to help you in your search, so you can not only benefit from brand-new windows, but also save money on your power bills.

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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

Power Home

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

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

Best Window Installation & Replacement Companies in Dover

The EcoWatch team researched dozens of installers that serve the Dover area to find the best window installation companies by our standards. The companies in this article passed our review standards for energy-efficient offerings as well as price, customer service, local expertise 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 is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has around 27 years of industry experience, and it currently serves 200 locations nationwide. The company has a lot of positive reviews from customers online.

Window World may be the company for you if you want one 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

Window World has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. 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 Dover?

Prices are not available on Window World’s website because the cost of window installment varies greatly depending on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. You can request a free quote on its website for more information about the cost.

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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of industry experience, and it currently serves nearly every state except Mississippi and West Virginia. The company has a lot of positive reviews from customers online.

Andersen may be the company for you if you want one 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

Renewal by Andersen has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. 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 Dover?

Prices are not available on Andersen’s website because the cost of window installment varies greatly depending on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can request a free quote on its website for more information about the cost.

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 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. Aeroseal has around 23 years of industry experience, and it currently serves 13 states and Washington D.C. The company has a lot of positive reviews from customers online.

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 has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you 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 Dover?

Prices are not available on Aeroseal’s website because the cost of window installment varies greatly depending on how many and what type(s) of windows you need. However, it provides high-quality windows at a competitive price point. You can request a free quote on its website for more information about the cost.

We’ve recommended providers with good reputations, but bear in mind that these are national companies, so the quality of service may differ depending on your local crew. We have tried to be unbiased and transparent by listing pros and cons for every company we reviewed.

More Window Companies in Dover

Renewal by Andersen of NJ/NY Metro

Cranford, NJ
4.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • 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/535-nj-ny-metro/retailer
Address: 70 Jackson Dr Suite A, Cranford, NJ 07016
Phone: (908) 497-1020

Winstar Windows

Essex Fells, NJ
5.0
★★★★★
  • Pros icon Second-generation-family-owned and operated
  • Pros icon Wide variety of windows
  • Pros icon Good Customer Service
  • Pros icon One-day window installation
  • Pros icon Second-generation family-owned and -operated
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

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

Website: https://www.winstarwindows.com/
Address: 219 Roseland Ave, Essex Fells, NJ 07021
Phone: (973) 576-5512

Bloomfield Window and Door Company

Bloomfield, NJ
5.0
★★★★★
  • Pros icon Free assessment

Services Offered

  • Service icon Screen Repair
  • Service icon Window Replacement/Installation

Website: http://www.bloomfieldwindowanddoor.com/
Address: 452 Broad St, Bloomfield, NJ 07003
Phone: (201) 889-5864

Zeus Siding & Windows LLC

Irvington, NJ
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Weekend availability
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Satisfaction-guaranteed warranties
  • Pros icon Siding, roofing, and windows

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.zeussiding.com/
Address: 27 Orange Ave, Irvington, NJ 07111
Phone: (908) 316-2728

Frank Conforti Contracting

North Haledon, NJ
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

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

Website: https://confortiroofingnj.com/
Address: 84 Walray Ave, North Haledon, NJ 07508
Phone: (973) 519-2126

F5 Remodeling

Rutherford, NJ
5.0
★★★★★
  • Pros icon Minority-owned and operated
  • Pros icon Free assessment
  • Pros icon Family-owned and operated
  • Pros icon Price Transparency
  • Pros icon Full-service installation
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation

Website: https://f5remodeling.com/
Address: 8 Station Square #2, Rutherford, NJ 07070
Phone: (551) 271-0650

HDL Construction LLC — Windows replacement, Roofing, Roof service, Siding replacement, Chimney, Deck, Masonry

Hasbrouck Heights, NJ
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free in-home consultation
  • Pros icon Free assessment
  • Pros icon Saturday and Sunday availability
  • Pros icon Price Transparency
  • Pros icon 24-hour emergency service

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.hdlconstructionnj.com/
Address: 184 Boulevard Apt A, Hasbrouck Heights, NJ 07604
Phone: (201) 375-5437

Kepo Siding & Windows

Hillsborough Township, NJ
5.0
★★★★★
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.keposidingwindows.com/
Address: 15 Ilene Ct building 12 unit 15, Hillsborough Township, NJ 08844
Phone: (908) 553-5850

Aspen Home Remodeling, LLC.

Oradell, NJ
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.aspenhomeremodelingllc.com/
Address: 700 Kinderkamack Rd #101, Oradell, NJ 07649
Phone: (201) 994-5354

Ben Window & Glass

Brooklyn, NY
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Weekend availability
  • Pros icon Wide selection
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Foggy window repair

Services Offered

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

Website: https://benwindowglass.com/
Address: 431 Bay Ridge Pkwy, Brooklyn, NY 11209
Phone: (347) 799-0912

Cityproof Soundproof Windows

Long Island City, NY
5.0
★★★★★
  • Pros icon Timely Service
  • Pros icon Over 50,000 installations completed
  • Pros icon No-construction services available
  • Pros icon Educational Website
  • Pros icon Trademark soundproof Citiwindows
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

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

Website: https://www.cityproof.com/
Address: 10-11 43rd Ave, Long Island City, NY 11101
Phone: (718) 786-1600

United Windows And Glass Repair LLC

Brooklyn, NY
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Repair
  • Service icon Glass Repair
  • Service icon Bay Windows
  • Service icon Tempered Glass
  • Service icon Double-Hung
  • Service icon Window Replacement/Installation

Website: https://www.unitedwindowsandglassrepair.com/
Address: 8714 21st Ave, Brooklyn, NY 11214
Phone: (929) 969-0867

M & R Windows

Bronx, NY
5.0
★★★★★
  • Pros icon Timely Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation

Website: http://mandrwindows.com/
Address: 4510 Bullard Ave, Bronx, NY 10470
Phone: (718) 652-1300

Northern Windows Siding, Roofing and Insulation

Goshen, NY
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

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

Website: http://northernwindows.com/
Address: 2537 US Hwy, 6 NY-17M, Goshen, NY 10924
Phone: (845) 294-4444

Prown's Windows & Doors

Middletown Township, NJ
5.0
★★★★★
  • Pros icon Free assessment

Services Offered

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

Website: http://www.prowns.com/
Address: 669 NJ-35, Middletown Township, NJ 07748
Phone: (732) 741-7500

CKG Contractors Inc. Roofing-Siding-Window Experts.

Parsippany-Troy Hills, NJ
4.9
★★★★★
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

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

Website: https://ckgcontractors.com/
Address: 177 Parsippany Rd, Parsippany-Troy Hills, NJ 07054
Phone: (973) 620-2055

One Call Construction

Fairfield, NJ
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

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

Website: http://www.onecallhrg.com/
Address: 1275 Bloomfield Ave, Fairfield, NJ 07004
Phone: (973) 747-5112

RWC Windows, Doors, Kitchens, & Baths

West Caldwell, NJ
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Educational Website

Services Offered

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

Website: https://www.rwcnj.com/
Address: 686 Passaic Ave, West Caldwell, NJ 07006
Phone: (973) 227-7123

PJ Fitzpatrick

Fairfield, NJ
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Vinyl Frames
  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Window Repair
  • Service icon Double-Hung
  • Service icon Skylights
  • Service icon Glass Doors

Website: https://www.pjfitz.com/
Address: 323 Passaic Ave, Fairfield, NJ 07004
Phone: (866) 868-3501

Window25

Kenilworth, NJ
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Window Replacement/Installation

Website: http://www.window25.com/
Address: 326 N 14th St Unit A, Kenilworth, NJ 07033
Phone: (973) 817-9464
Dover Window Cost Calculator

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

There are quite a few benefits of upgrading to energy-efficient windows. Some reasons you may want to consider making the switch include the following:

  • Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
  • Reduce your carbon footprint: In Dover, you can cut your indirect greenhouse gas emissions by about 206 pounds per year when you upgrade to energy-efficient windows.
  • Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out harmful UV rays.
  • Save on electricity bills: Because energy-efficient windows reduce how much energy you need to heat or cool your home, the switch can help you save about $287 annually on your energy bills in Dover.

Estimated Cost of Window Replacement in Dover

Windows come in different purposes, styles and shapes, so costs and services will differ greatly based on your project. Below, we detail the average cost and services that you’ll find from window installation companies.

How Much Do New Windows Cost?

Though the national average cost of installing one window is around $600, it can range anywhere from $200 to $1,200. This is because window installations depend on several factors specific to your home, such as the size, material and number of windows you need to install, as well as the location of your property.

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

Costs will also vary depending on the material of your frame. Aluminum frames cost the least. They’re sturdy, light and maintenance-free, but offer poor insulation. Vinyl frames are somewhat expensive and provide good insulation. Composite frames made from wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They’re also aesthetically pleasing and provide decent insulation for your home.

What Services do Window Installers Offer?

When it comes to window installations, there are generally two kinds that your installer will have: full-frame and pocket installations.

A full-frame installation is a total window replacement. This service involves taking out the old window, the sill, and the exterior and interior trim. It can also involve extra materials, including insulation and drip edges, which raise the total cost of the project. It’s also worth noting that you may have to touch up the paint surrounding the window after a full-frame installation. A pocket installation involves installing a new window without replacing the frame. This means instead of taking out the whole window and reinstalling it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.

Your window replacement company should be able to help you understand what’s best for your needs. In Dover, the decision will mostly depend on how old your home is and if there’s any damage. Wood can decay if it’s not maintained properly over the years, so it’s good to have a professional check on your frames and window sills.

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

Power Home

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

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

How We Choose the Best Window Installers in Dover

EcoWatch reviews are different from other reviews since we examine these companies through a sustainability lens. Along with energy efficiency, we assessed window companies all across the state and assigned rankings using the following methodology:

Service Area

This one is pretty self-explanatory, but we’ve chosen to highlight window installers that serve a wide variety of states and cities so you can find a quality window installation company near you.

Work Quality

When installing new windows, the quality and variety of services can often play just as important of a role in insulation and performance as the brand 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

We analyzed trends in recent customer feedback to find the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it indicates the quality of services across nearly every category, including quality of installation, cost, professionalism, warranty, quality of parts and more.

Cost

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

Warranty

As discussed, windows are a considerable investment, so you’ll want to make sure that investment is well protected. Window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Lastly, we like to see companies that have a proven track record in the industry. Window installation companies that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.

Dover, NJ Window Replacement FAQs

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

The national average cost of installing one window is about $600 but can range between $200 and $1,200, depending on several factors. The price is typically dependent on the size of the window, the type and material of the window and the location of your property. Also, remember that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.

What are the types of windows?

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

Do I really need to use a window installation company?

Unless you have experience with home improvement projects and have the time to replace your own windows, we recommend hiring a professional. The window installation process is complex and can take anywhere from four to six hours for one window. Although it’s tempting to try to do it yourself to save money, hiring a professional is a faster, more efficient and much safer option.

Should I replace my windows all at the same time?

If you’re upgrading your windows because of energy-efficiency, replacing all of the windows at the same time is the only way to see a noticeable difference. However, if you have only a few windows that are damaged or leaky, you can replace just those.