20 Best Window Companies in Sparta, NJ (2025 Reviews)
Are you looking to upgrade your windows? Our list of the best window installation companies can help you narrow down which one to choose.
We analyzed all the top-rated window companies in Sparta and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
Please enter a valid 5-digit zip code!
Why you can trust EcoWatch
The EcoWatch team is all about finding solutions for eco-conscious homeowners in Sparta. The Department of Energy estimates that heat or cool air lost through old or damaged windows could be responsible for about 30% of residential energy climate use. In Sparta, where the power bills are an average of $23 per month, that’s almost $$83 per year wasted.
Replacement windows improve your home’s insulation, not only making you more comfortable during the summer and winter, but also saving you some money and helping the environment.
We’ve compiled this guide on the best installation companies to help you in your research, so you can not only benefit from brand-new windows, but also save money on your energy bills.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Window Installation & Replacement Companies in Sparta
The EcoWatch Reviews team examined dozens of companies that serve the Sparta area to find the top window installation companies that fit our standards. The providers in this article scored best in our categories, which include energy-efficient offerings, price, availability, customer service and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World provides windows expertise in Sparta. Window World has been in the window business for about 27 years.
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 WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World’s offerings are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.
How much does Window World cost in Sparta?Prices are not available on Window World’s website because the cost of window replacement varies greatly 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. For more detailed information on the cost, you can ask for a quote from the company.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen provides the best availability in Sparta. Andersen has been in the window business for about 27 years.
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 WindowsA handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019. Not all of Andersen’s offerings are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Sparta?Prices are not available on Andersen’s website because the cost of window replacement varies greatly 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. For more detailed information on the cost, you can ask for a quote from the company.

Aeroseal Windows
Many years of experience
Great industry reputation
Low number of customer complaints
Manufactures products in-house
Custom Designs
No lifetime warranty
Not ideal for residential installations
Aeroseal Windows provides the best window installation for businesses in Sparta. Aeroseal has been in the window business for about 23 years.
It installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThe company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more. Not all of Aeroseal’s offerings are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.
How much does Aeroseal Windows cost in Sparta?Prices are not available on Aeroseal’s website because the cost of window replacement varies greatly based on how many and what type(s) of windows you need. However, it provides high-quality windows at a competitive price point. For more detailed information on the cost, you can ask for a quote from the company.
We strive to be unbiased and transparent by mentioning pros and cons for every provider. Additionally, any partnerships do not influence our rankings.
More Window Companies in Sparta
Renewal by Andersen of Eastern NY
Middletown, NYFree assessment
Good Customer Service
Educational Website
Services Offered
Energy-Efficient Options
Custom Window Designs
Glass Doors
Bay Windows
Skylights
Double-Hung
Window Replacement/Installation
Winstar Windows
Essex Fells, NJSecond-generation-family-owned and operated
Free assessment
Good Customer Service
Educational Website
Second-generation family-owned and -operated
Wide variety of windows
One-day window installation
Price Transparency
Services Offered
Window Replacement/Installation
Glass Doors
Frank Conforti Contracting
North Haledon, NJPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Window Repair
Skylights
Energy-Efficient Options
Window Replacement/Installation
Northern Windows Siding, Roofing and Insulation
Goshen, NYPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Bloomfield Window and Door Company
Bloomfield, NJFree assessment
Services Offered
Screen Repair
Window Replacement/Installation
Zeus Siding & Windows LLC
Irvington, NJEducational Website
Free assessment
Siding, roofing, and windows
Price Transparency
Satisfaction-guaranteed warranties
Weekend availability
Good Customer Service
Services Offered
Window Replacement/Installation
HDL Construction LLC — Windows replacement, Roofing, Roof service, Siding replacement, Chimney, Deck, Masonry
Hasbrouck Heights, NJ24-hour emergency service
Free assessment
Price Transparency
Educational Website
Free in-home consultation
Saturday and Sunday availability
Good Customer Service
Services Offered
Window Replacement/Installation
F5 Remodeling
Rutherford, NJEducational Website
Good Customer Service
Price Transparency
Full-service installation
Free assessment
Minority-owned and operated
Family-owned and operated
Services Offered
Window Replacement/Installation
Aspen Home Remodeling, LLC.
Oradell, NJGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Skylights
Window Replacement/Installation
Energy-Efficient Options
Kepo Siding & Windows
Hillsborough Township, NJGood Customer Service
Timely Service
Free assessment
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
Cityproof Soundproof Windows
Long Island City, NYTrademark soundproof Citiwindows
No-construction services available
Free assessment
Over 50,000 installations completed
Good Customer Service
Price Transparency
Timely Service
Educational Website
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Custom Window Designs
M & R Windows
Bronx, NYPrice Transparency
Timely Service
Services Offered
Window Replacement/Installation
Ben Window & Glass
Brooklyn, NYPrice Transparency
Weekend availability
Foggy window repair
Educational Website
Free assessment
Wide selection
Services Offered
Window Repair
Window Replacement/Installation
Putnam Windows Inc.
Cold Spring, NYEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Glass Doors
Vinyl Frames
Wood Frames
Window Replacement/Installation
United Windows And Glass Repair LLC
Brooklyn, NYGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Bay Windows
Energy-Efficient Options
Window Replacement/Installation
Glass Repair
Double-Hung
Window Repair
Tempered Glass
CKG Contractors Inc. Roofing-Siding-Window Experts.
Parsippany-Troy Hills, NJGood Customer Service
Timely Service
Price Transparency
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Skylights
Energy-Efficient Options
One Call Construction
Fairfield, NJGood Customer Service
Educational Website
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Energy-Efficient Options
PJ Fitzpatrick
Fairfield, NJPrice Transparency
Free assessment
Educational Website
Timely Service
Good Customer Service
Services Offered
Bay Windows
Window Replacement/Installation
Skylights
Vinyl Frames
Energy-Efficient Options
Double-Hung
Glass Doors
Glass Showers
Window Repair
RWC Windows, Doors, Kitchens, & Baths
West Caldwell, NJGood Customer Service
Educational Website
Timely Service
Free assessment
Services Offered
Window Replacement/Installation
Glass Showers
Glass Doors
Glass Doctor of Ramsey
Ramsey, NJPrice Transparency
Good Customer Service
Educational Website
Services Offered
Glass Doors
Glass Showers
Energy-Efficient Options
Glass Repair
Mirrors
Window Repair
Window Replacement/Installation
Custom Glass
Calculate how much you can expect to pay for window installation and replacement in Sparta, NJ using our customized window cost calculator.
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 Sparta Saves You Money
When you upgrade to energy-efficient windows, you may see a few benefits, such as:
- Decrease your carbon footprint: Reducing the amount of energy you use also lowers your carbon emissions. You could reduce it by 206 pounds per year on average.
- Protect your investment: Upgrading your windows is an important part of maintaining your property and its value, particularly if you have an older home.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
- Save money on energy bills: Upgrading to energy-efficient windows reduces your energy bills by about 12% because you need less energy.
Estimated Cost of Window Replacement in Sparta
Windows come in different styles, purposes and shapes, so costs and services will differ remarkably based on your project. Below, we describe the typical cost and services that you can get from window installation companies.
How Much Do New Windows Cost?
Although the national average cost of replacing one window is about $600, it can range from $200 to $1,200. These numbers are based on specific characteristics of your installation, such as number of windows, the location of your home, material, size, type and more.
Keep in mind that energy-efficient windows may have a higher price, 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 replace double-pane, clear glass windows. These savings vary based on your local climate, energy rates and individual home characteristics.
The cost of your window installation will also vary based on the type of material you choose for the frames. Wood windows are generally the most expensive, although it depends on whether they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are shown to be more efficient.
What Services do Window Installers Offer?
The first step of an installation is to figure out whether you want a full-frame or pocket installation.
Full-frame installations are usually done when you want to change the style of your windows or your window has significant rot. With this service, your installers will replace the full window, including the frame, sill and trim. A pocket installation entails installing a new window within the old frame. So, instead of removing the whole unit and rebuilding it, the contractor will just slide the replacement window (also called a retrofit or insert window) into the frame.
If you’re still trying to decide which type of installation you should get, you can ask your provider and get their recommendation. The decision mostly depends on how old the frames are and if there’s any damage present.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
How We Choose the Best Window Installers in Sparta
In our hunt to find the most reliable, eco-friendly window installers in Sparta, the EcoWatch Reviews team examined many companies before landing on these. We’ve assessed the best window installation companies in Sparta primarily based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows can cut your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
This one is pretty self-explanatory, but we’ve chosen to highlight window installers that serve the Sparta area so you can find the right window installation company near you.
Work Quality
When it comes to new windows, the quality and variety of services can often play just as important of a role in overall efficiency and performance as the brand you opt for. We do give window installers higher marks 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 find the companies with the most consistent customer satisfaction. Customer satisfaction may be the most important factor, as it reflects the quality of services across nearly every category, including warranty, cost, quality of installation, professionalism, quality of parts and more.
Cost
This one is a give-and-take: similar to other services, cheap window companies are not going to provide the most quality service. On the other hand, we want to make sure we’re highlighting companies that provide a wide range of price and financing options so they’re accessible to most homeowners.
Warranty
As discussed, windows are a substantial investment, so you’ll want to be certain that investment is protected. Window installation companies that provide lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to Sparta’s climate, homeowners will want to mitigate low efficiency, rot and water damage. We factored in local experience to reflect the ability of Sparta window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Sparta, NJ Window Replacement FAQs
What is the typical cost to replace windows in a home?
The national average cost of replacing a window is around $600 but can range from $200 to $1,200, based on several factors. The price is typically influenced by the location of your property, the type and material of the window and the size of the window. 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 most common types of replacement windows?
There are several different types of windows you can get for your house, including picture windows, awning windows, bay windows, slider windows, double-hung and single-hung windows, casement windows and transom windows.
What services do window replacement companies provide?
Window installers cover the entire process — from replacing your old windows with new ones to cleaning up after the windows have been put in place. Additionally, some companies offer window manufacturing, customization and repairs.
Should I replace my windows all at once?
If your windows are greater than 20 years old, you most likely need to replace all of them. By that point, they are often less efficient, draftier and/or more damaged than new windows. Doing your windows all at once will involve less paperwork and less time.
How long does it usually take to install windows?
Because a window takes about 30 minutes to install, around 16 windows can be installed in an 8-hour work day.