Castle Windows - North Jersey offers premium replacement windows and doors, expert installation, and a true lifetime warranty.
Cedar Grove Window & Door Installers
Trusted Since 1977
For nearly 50 years, Castle Windows has been the trusted source for window and door installation in Cedar Grove. Not only do we manufacture our own windows and doors, but we also provide top-quality installation and replacement services throughout North Jersey. We are exacting in our standards and take pride on delivering products and services that stand apart from the rest.
Our Cedar Grove window and door installation experts are carefully selected for their high level of skill, experience, and dedication to complete customer satisfaction. We install all of our products, from window replacements in historic homes to high-security entry doors, with the utmost precision and attention to detail. When you choose Castle Windows, you can rest assured that you're choosing a home improvement company with credentials you can trust.
Please reach out to our team today to schedule your consultation or get a free estimate.
The Trusted Window & Door Provider
Choose The Window People

Built to Last, Backed by Trust
When it comes to window and door quality, we choose to work with Andersen because their products are designed with longevity in mind. At the core of their innovation is Fibrex®, a proprietary composite material that outperforms vinyl by a factor of two in strength while incorporating reclaimed wood fiber into its makeup. The result is a product that holds up over decades of use while keeping environmental impact in mind from the start, not as an afterthought.
This dedication to responsible manufacturing is part of why Andersen was named a 2024 ENERGY STAR® Partner of the Year with the Sustained Excellence distinction, recognizing sustained leadership in energy-efficient design year after year. Want to know more? We invite you to take a closer look at the certifications standing behind every window, door, and installation we bring to North Jersey homes.
Our Photo Gallery
A Closer Look At Our Work
Browse a selection of recent projects and see the quality and care behind every job.
More Ways to Love Your Home
Beyond windows and doors, we're your go-to for siding updates and roof installations and replacements. Across all our services, we strive to deliver real value for our customers. We do that by improving curb appeal, elevating energy efficiency, and providing long-lasting security.

How It Works
-
1Schedule Your Visit
-
2Get an Upfront Quote
-
3We Do the Work
Real Customer Testimonials
As a family-owned business, we treat our customers like they’re part of our family.
-
Installation and window quality
"We had 4 new doors installed and they are not only beautiful but function great."
MMarietta Dantonio-Madsen Verified Customer
Castle Windows Brings New Life to Your Home
Enhance your home's beauty and security with Castle Windows. Contact us for a consultation with our skilled specialists and start transforming your home into the castle you've always dreamed of. Experience the Castle difference today!
Answers to Common Questions
-
Are all-wood windows a good choice for an older or historic home?
They can be a good architectural fit where natural materials, traditional proportions, and existing trim are important. The project may also require attention to sash dimensions, decorative details, opening condition, and local preservation requirements. A consultation can help determine whether repair, an insert window, or full-frame replacement better fits the home and project goals.
-
Is installation work available year-round?
Yes. Our installation crews work year-round. Ask about shifts, employment classifications, and seasonal workloads for a specific position.
-
How do awning windows compare with casement windows?
Both styles open outward, but awning windows are hinged at the top while casement windows are hinged at the side. The better fit depends on the opening, preferred ventilation direction, privacy needs, exterior clearance, and how you want to operate the window.
-
Are Castle Windows locations independently operated?
We can’t confirm from the available information whether individual locations are independently operated or managed through one corporate structure. Contact us directly if the operating structure or responsibility for service in your area affects your project or warranty request.
-
Does Raynor provide a residential garage door warranty?
Raynor warranty coverage varies by product, component, purchaser, property type, and installation circumstances. Review the manufacturer’s written warranty for the exact product selected. Also confirm whether the installer provides separate coverage for labor or installation-related concerns, since manufacturer and installer responsibilities aren’t necessarily the same.
-
What is the difference between double-hung and single-hung windows?
Both styles have vertically arranged sashes. A double-hung window allows both the upper and lower sashes to move, while a single-hung window typically has only one movable sash. The appropriate choice depends on ventilation preferences, cleaning access, design, budget, and the existing opening.