XO Window Systems Project and Portfolio

See Our Work in Action

Explore XO Window Systems Portfolio to see how we’ve helped homeowners across Southern California transform their spaces — one project at a time. Crafted for Every Home. Designed for Every City.

Trabuco Canyon  exterior view of double pane french door

Trabuco Canyon

exterior view of double pane french door
Projects and portfolio Rancho Palos Verdes Brick mold frames

Rancho Palos Verdes

Brick mold frames
Projects and portfolio Mission Viejo Simonton Daylightmax casement window-retrofit installation

Mission Viejo

Simonton Daylightmax casement window-retrofit installation
Double Panel French door with side lights in Irvine CA

Irvine

Double Panel French door with side lights in Irvine CA
Coto De Caza Whole house, windows, and door

Coto De Caza

Whole house, windows, and door
Projects and portfolio Anaheim Bay Window

Anaheim

Bay Window

Lake forest

Dana point - XO Window Systems projects

Dana point

Trabuco Canyon whole house window installation

Trabuco Canyon

whole house window installation
Custom-made windows and doors Coto De Caza - XO Window Systems pr

Coto De Caza

Custom-made windows and doors
Aliso Viejo energy efficient double pane windows with argon gas

Aliso Viejo

energy efficient double pane windows with argon gas
Newport Beach Corona Del Mar- retrofit white vinyl energy star windows

Newport Beach

Corona Del Mar- retrofit white vinyl energy star windows
Laguna Niguel Upgrade windows

Laguna Niguel

Upgrade windows
Mission Viejo  kitchen remodeling project

Mission Viejo

kitchen remodeling project

At XO Window Systems, no two projects are the same — and that’s exactly how it should be. Every window and door replacement is a reflection of the home it belongs to, the neighborhood it stands in, and the people who live inside.

We don’t just replace windows and doors — we transform homes. Our process starts with understanding the foundation of each property, including the condition and style of the existing windows and doors. These become the base of our design approach, guiding us in choosing the right materials, colors, and architectural elements that enhance and elevate your space.

From modern aluminum frames to classic wood finishes, the materials we use are handpicked based on the unique needs of each home. Whether you’re looking for energy efficiency, durability, or a sleek contemporary look, we customize every detail to match the function and form your home requires.

Each city has its own set of rules, regulations, and permit requirements — and we know them well. From historical districts to modern neighborhoods, navigating local building codes is crucial. Our team works directly with city officials to ensure that your project is not only beautiful but 100% compliant. This saves you time, money, and the stress of managing permits yourself. We’re proud members of several local Chambers of Commerce, including:

Our involvement in local real estate and realtor networks also gives us deeper understanding of:

  • City qualifications and zoning regulations
  • Permit requirements
  • HOA guidelines and neighborhood-specific standards

These connections ensure we’re always up to date on the latest local policies and approval processes. Whether your home is in a historic district, a new development, or part of an HOA-regulated neighborhood, our team knows how to work with city officials and inspectors to keep your project moving efficiently and within code.

The weather, humidity, and environmental conditions of your city directly affect which products will perform best. Homes near the coast, for instance, require materials that withstand salt and moisture, while homes in arid or high-heat regions need UV-resistant solutions. Our deep knowledge of these factors helps us guide homeowners toward the best long-term choices.

We take a holistic approach to every project by considering:

  • The existing architecture of your home
  • The design aesthetic of your neighborhood
  • Your personal style and vision
  • The color palette and finishes that bring it all together

Your input is key, and our team is here to offer expert advice every step of the way.

Why Experience Matters

Understanding all these layers — from materials and city codes to weather conditions and homeowner vision — is what sets XO Window Systems apart. We don’t offer one-size-fits-all solutions. We deliver custom window and door systems tailored to your lifestyle, your home, and your city.

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