Window Replacement

Complete window replacement services with a wide variety of styles and materials. We help you choose the perfect windows for your home.

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Full window replacement for New Jersey homes

Sometimes a repair isn’t enough, especially when your old windows are beyond saving or simply can’t keep up with New Jersey’s shifting seasons. At WindowServ, we provide full-service window replacement that upgrades your home’s look and performance in one go. We don’t just swap out units; we make sure your new windows are perfectly integrated into your home to stop leaks, kill noise, and slash your energy bills.

Modern windows built for the NJ climate

We install high-quality, energy-efficient windows designed to handle everything from coastal humidity to freezing winter winds:

Energy Star certified units. Upgrade to modern double or triple-pane glass with Low-E coatings. These windows reflect heat in the summer and trap it in the winter, keeping your HVAC system from working overtime.
Vinyl, wood, and composite frames. Whether you want the classic look of real wood for a historic home or the zero-maintenance durability of high-grade vinyl, we help you choose the right material for your lifestyle and budget.

Precision installation that lasts

The best window in the world will fail if it’s installed poorly. We take the time to do it right:

Full-frame replacement. We don’t just slide a new window into a rotting old frame. We inspect the opening, replace any damaged structural wood, and ensure the new unit is shimmed, insulated, and flashed correctly.
Airtight sealing and insulation. We use professional-grade foams and high-end caulking to eliminate the gaps that cause drafts. Our goal is a seamless fit that looks like it’s always been part of your house.
Custom styles for every room. From expansive bay windows and sleek sliders to traditional double-hung and casement windows, we offer a wide range of designs to boost your home’s curb appeal.

The WindowServ promise

Replacing your windows is a big investment, and we treat it that way. We keep our workspace clean, stay on schedule, and walk you through the operation of your new windows before we consider the job done. With WindowServ, you’re not just getting new glass—you’re getting a quieter, more secure, and significantly more efficient home.

How We Fix Your Problems

Comprehensive solutions that actually work—no upsells, no surprises.

Professional Assessment

We evaluate your situation honestly and provide clear recommendations.

Quality Workmanship

Every job meets our quality standards. We use quality materials and professional techniques.

Energy Efficiency Focus

Our work reduces your energy bills. We measure success by how much money we save you long-term.

Service Options

Choose the service option that best fits your needs

Double-Hung Windows

Classic double-hung windows that tilt in for easy cleaning. Perfect for traditional and modern homes with excellent ventilation control.

Sliding Windows

Smooth-operating sliding windows ideal for modern homes. Great for areas where you want unobstructed views and easy operation.

Casement & Awning Windows

Casement and awning windows that crank outward for maximum ventilation. Perfect for hard-to-reach areas and contemporary designs.

Picture Windows

Large fixed picture windows that maximize natural light and provide stunning views. Ideal for showcasing beautiful outdoor scenery.

Basement Hopper Windows

Compact hopper windows perfect for basements and below-grade installations. Provide ventilation while maintaining security.

Bay & Bow Windows

Elegant bay and bow windows that extend outward, creating additional interior space and dramatic architectural appeal.

Garden Windows

Charming garden windows that create a perfect space for plants and herbs. Add natural light and a touch of nature to your kitchen.

Single-Hung Windows

Traditional single-hung windows with the bottom sash that opens upward. Classic design with reliable operation and easy maintenance.

Are These Problems Costing You Money?

If you recognize these issues, you're not alone—and we can help.

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Energy Loss

Your home is losing energy, and your bills are skyrocketing.

High Energy Bills

Your HVAC system works overtime because things aren't working properly.

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Things Don't Work Right

Every day is a struggle with things that should just work.

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Security Concerns

Your home and family deserve proper protection.

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Comfort Issues

Rooms are too cold in winter, too hot in summer.

Fear of Being Overcharged

You need someone honest who won't try to sell you what you don't need.

Why Choose WindowServ?

We're not just another contractor. We're your trusted home service partner.

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Transparent Pricing

Clear estimates with no hidden fees.

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Honest Assessment

We tell you what actually needs fixing—not what we can sell you.

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Energy Efficiency Focus

Our work reduces your energy bills.

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One-Stop Service

We handle it all. No need to coordinate multiple contractors.

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Professional Standards

Every job meets our quality standards.

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No Hassle

One call, we handle everything.

How It Works

Simple, straightforward process—no surprises

Request Service

Call us or fill out a form. Tell us about your needs.

We Assess

Our expert comes to your home, evaluates the situation, and provides a clear estimate.

We Fix It

Professional work done to our standards. You approve, we complete.

Get a Quote

Our Work

Real projects, real results for homeowners like you

Sliding Window Installation

Residential Window Restoration

Wood Casement Window Restoration

View More Projects

Hundreds of Satisfied Customers

Recent Google reviews from homeowners we serve in New Jersey.

         Posted on Google  
   
   Cari Ollo 
 
 
 
 Trustindex verifies that the original source of the review is Google. Fast,  did a great job! Very happy! Thank you!
  
 
      Posted on Google  
   
   Maria Yiannitsarakos 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service.  We had a crack in our Pella window and did not want to replace the whole window.  They specialize in Pella
Windows. They measured and order the glass  pane and within 2 weeks expertly installed it .  Also great communication
  
 
      Posted on Google  
   
   Yelena N 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very happy with the service, helped me to save a lot of money, instead of replacing the whole window they changed the foggi glass and replaced operator for my casment windows, highly recommend! Very professional.
  
 
      Posted on Google  
   
   Pushkar Bedekar 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had an amazing experience with Sergei and the crew. Our Pella window broke and Pella gave us a very expensive quote with 8 week turnaround. Sergei was able to recreate the window in a fraction of the time and cost. Work quality was impeccable and they did the job in record time.  Highly recommend for all kinds of door and window related issues.
  
 
      Posted on Google  
   
   Purvis 
 
 
 
 Trustindex verifies that the original source of the review is Google. I called multiple contractors and companies. Serge provided a quote and confirmed they could repair within a week. They were the only ones who said they could fix my broken Pella casement window from the 1990s! Everyone else including Pella recommended to change the entire three window set. They did a great job in less than half a day! Not the cheapest but I avoided changing 3 windows to fix the one broken sash and glass and didn’t have to wait for 6 weeks! Highly recommend!
  
 
      Posted on Google  
   
   caroline boutros 
 
 
 
 Trustindex verifies that the original source of the review is Google. Serg and Sasha at WindowServ were easy to communicate with, prompt and matched the glass window perfectly.  They helped to clean up all the shards of glass and made it look like nothing ever happened to my window in the first place! Would definitely recommend for your window needs!
  
 
      Posted on Google  
   
   Stephen Lloyd 
 
 
 
 Trustindex verifies that the original source of the review is Google. Did a great job. Quick and easy.
  
 
      Posted on Google  
   
   Keith Fitschen 
 
 
 
 Trustindex verifies that the original source of the review is Google. Sergey and WindowServ NJ did a great job replacing our patio slider door Glass, as well as the mesh in our Screen slider.  He was prompt, professional and very reasonable on pricing.  We will likely be using him and his company for a future front door replacement project as well.
  
 
      Posted on Google  
   
   Feiruz Gabibov 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thanks! Great guys they gave me a consultation, and instead of replacing the entire window, I only replaced the glass. Thank you!!!
  
 
      Posted on Google  
   
   Sharon Reed 
 
 
 
 Trustindex verifies that the original source of the review is Google. Have had a great experience with WindowServ!  Replaced one broken window and two with broken seals as well as several with broken mechanisms. Very professional, reasonable prices and timely. Serge and Sasha were great to work with. Everything went so smoothly and they are really experts !
  
 
  
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