The Best Idea Around Glass
Upgrade Your Home with
XO Window Systems!
Premium Windows & Doors For A More Beautiful, Energy-Efficient Home
Schedule a free consultation
CSLB LIC#1127613 C-17
What Sets Us Apart from Competitors
Trusted Excellence!
Quality Craftsmanship
Our windows are sourced from top manufacturers and installed with precision by skilled technicians.
Energy Efficiency Expertise
We adhere to California’s Title 24 Building Standards, ensuring your new windows help cut costs and save energy.
Exceptional Service
From the first consultation to post-installation follow-up, your satisfaction is our top priority.
Warranty and Support
We stand behind our work with robust warranties and responsive customer service.
Backed by industry-leading certifications and trusted by customers, our commitment to quality, efficiency, and reliability is second to none.
The Best Idea Around Glass
About XO Window Systems
At XO Window Systems, we’re more than just a window and door company—we’re a team of dedicated professionals passionate about transforming homes across California.
The Best Idea Around Glass
Why Choose XO Window Systems?
Upgrade to windows that enhance your home’s beauty, security, and efficiency—without breaking the bank!
Precision Craftsmanship
California Title 24 Compliant
Custom-Fit Solutions
Lifetime Warranty
Trusted & Certified for Quality
Services We Offer
The Best Idea Around Glass
New Construction Installation
Retrofit Installation
Energy Efficient and Title 24 Rated
Custom Solutions
Hear From Our Clients
Frequently Asked Questions
Find answers to commonly asked questions about our products and services
Do I need HOA approval?
Yes, if you live in an HOA community, you’ll likely need approval before replacing your windows. We can help guide you through the process.
Do I need city permits?
It depends on your city and the scope of work. Most cities in Southern California require permits, except for Irvine and Huntington Beach. We can assist with pulling permits or guide you on how to do it yourself.
How much deposit should I pay?
By law, contractors can only ask for 10% of the project cost or $1,000, whichever is less. Never pay more upfront.
Are all windows custom made?
Yes, every window is custom-made to fit your home’s unique measurements and needs.
Question 5: How long will it take to install my windows?
Typically, it takes 4-8 weeks from order to installation. Installation itself usually takes 1-2 days.
Why is insurance and licensing important?
Hiring an uninsured contractor could leave you financially responsible if a worker is injured. Always verify that your contractor has proper insurance and is licensed.
Is an installation warranty important?
Yes! The quality of installation is just as important as the windows themselves. We offer a lifetime installation warranty, giving you peace of mind that your home is protected.
Can I find cheaper windows elsewhere?
Be careful of “too good to be true” deals. Cheap windows often come with poor installation, low-quality materials, and minimal warranties. Always work with licensed, insured, and reputable companies.
Do you use subcontractors?
No. We use only factory-certified, trained installers to ensure top-quality service from start to finish.
What’s the process to get started?
Once you accept our quote, we’ll prepare a work order for you to sign electronically. Then, we’ll schedule a measurement appointment and place your order. After manufacturing, we’ll schedule the installation around the shipping date.
What if I have a problem later?
If you have any issues, just call us! We’ll handle all warranty claims and fix any installation-related problems because of our lifetime installation warranty.
Can you create new window openings?
We don’t do major construction like creating new window openings. You’d need a general contractor for that.
Do you have a referral program?
Yes! You can earn $100-$500 for referring friends or family who make a purchase. Ask us for more details.
Are you really family-owned and local?
Yes! XO Window Systems is a family-owned business founded by a window industry expert with over 20 years of experience. We focus on providing homeowners with the best window systems for their needs—no high-pressure sales, just honest advice.
Copyright © 2025 XO Window Systems
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