Window Replacement & Installation
Energy Efficient. Beautiful. Built to Last.
- Serving the Southern California since 1989
- Free, no pressure estimates
- Expert Installers you can trust
Get New Windows & Upgrade the Way You Live
Old windows cost you comfort, money, and peace of mind. Let’s fix that.
At J.R. Door & Window, we make window replacement simple for homeowners across the Inland Empire, San Gabriel Valley, and Southern California. Our high-quality windows are designed to look great, perform efficiently, and fit your home’s unique needs. Whether you’re focused on energy savings, modern style, or long-lasting durability, our expert team guides you to the right choice and handles every step of the window installation with care and precision.
Call (909) 949-9902 Today to Schedule Your Free Estimate!
& Don't Forget to Ask About Our Financing Options
Why Replace Your Windows?
Energy-efficient glass and insulated frames help keep your home comfortable year-round, without overworking your HVAC system.
Better insulation also helps block outside noise, especially helpful on busy streets or in urban neighborhoods.
Modern locking systems and impact-resistant glass add an extra layer of protection for your home.
New windows improve curb appeal and are a smart, high-return investment if you’re planning to sell.
Today’s materials are built to hold up in the Upland climate without fading, warping, or peeling.
Choose From a Range of Window Styles
No matter the size or style of your home, we offer window types that fit:
- Single-Hung & Double-Hung – Classic design, easy operation, and great airflow
- Sliding Windows – Clean lines, smooth gliding, perfect for wider wall spaces
- Casement – Opens outward for maximum ventilation and clear views
- Awning – Hinged at the top, great for small spaces or rainy-day airflow
- Picture Windows – Stationary and expansive, ideal for bringing in natural light
- Bay & Bow Windows – Add space, sunlight, and architectural interest
Not sure what you need? We'll help you choose the right fit during your free consultation.
Why Homeowners Choose J. R. Door & Window
Local. Trusted. No Gimmicks. Just Great Service.
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35+ Years of Local Experience
We’ve helped thousands of Inland Empire homeowners improve their homes since 1989.
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No High-Pressure Sales
We don’t talk over you, upsell what you don’t need, or leave you guessing. Ever.
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Top Window Products
We only install windows we know will stand up to years of use and perform in Southern California's climate.
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Clean, Professional Installation
Our crew respects your time, your home, and your schedule. We show up on time and clean up completely.
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Highly Rated by Homeowners
We’re proud of our reputation. Our reviews reflect how much we care about every customer.
Take The First Step Toward New Windows
Call or click below to schedule your free in-home estimate.
or Call Us Today!
(909) 949-9902Frequently Asked Questions
How do I know if I need new windows?
Drafts, noise, condensation between panes, and frames that are hard to open or close are all signs your windows might need to be replaced.
How long does it take to install windows?
Most projects are done in one to two days. Larger homes or complex installs may take slightly longer, but we’ll give you a clear timeline in advance.
Do you charge for quotes?
No — our in-home estimates are 100% free. No pressure, no obligation.
What areas do you serve?
We proudly install windows throughout Upland, Rancho Cucamonga, Claremont, Ontario, and other nearby communities.