Welcome to 21st Century Doors & Windows
Serving All of Orange County, CA

Full Service, Made-To-Order Door & Window Replacement

We carry a wide variety of products to fit most every budget!

We Specialize in Custom Doors, Windows and Entries
for Both Replacement and New Construction
  • Traditional, historical wood or custom designed doors & windows
  • Any Size, Shape, or Color 
  • Exterior Clad with paint grade and stain grade interiors
  • We carry many lines of wood, clad, fiberglass and vinyl products to fit most any budget

We Design Full Lines of Wood, Clad, Fiberglass and
Vinyl Doors & Windows

  • Entry Doors & Dutch Doors
  • French Doors, complete with our tented threshold
  • Sliding Patio Doors
  • Wood or Fiberglass Bi-fold Doors
  • Bay Windows, Bow Windows, & Garden Windows
  • Interior Doors & Interior Barn Doors
  • Fixed, Sliding, Casement, & Awning Windows
  • Radius & Eclipse Windows
  • Very Custom Doors & Windows
21st Century Doors & Windows Request for
Free Design Consultation or Questions


Irvine Spectrum Showroom

10005 Muirlands Blvd., Suite A
Irvine, CA 92618
Corner of Bake & Muirlands
Mon-Fri: 9-6  Sat: 9-5  Sun: 11-3
Evenings by Appointment

The cost of replacement windows can be the most effective way to increase the value of your home. Replacement windows in Orange County should be looked at as an investment, and one where you can reasonably expect your home's value to increase. The cost of replacement windows, whether you choose Vinyl, Wood, Fiberglass or Clad can vary greatly depending on the quality and options that you choose. Visit our Product page for more information on the costs of replacement windows, and the pros and cons of the different types of windows available.

Your Home...
 It's a Reflection of Who You Are

21st Century Doors & Windows has been selected by many homeowners like you to transform their homes from ordinary to the truly beautiful. The reason is simple: our superior classic craftsmanship combined with our complete, remodeling services consistently create homes of extraordinary beauty that bring pride and satisfaction to our customers.

From our expert design consultants and talented craftsman to our experienced installation crews and customer service representatives, every member of the 21st Century Doors & Windows family appreciates how important your home is to you. That’s why we’re dedicated to making your experience one that you’ll treasure... and one that will make your home truly beautiful.

The 21st Century Experience...Captivating designs...The finest materials...Friendly customer service from start to finish!


Our installers are part of a select group of certified window and door “InstallationMasters™” installers for new construction and remodeling projects.

No matter how much you spend on top notch windows, the windows won’t perform properly if they’re not installed correctly. Poor installation techniques can defeat the advantages of the product and result in air or water leaks, wasted energy, or improper operation.

HERO is the Fastest-Growing Residential Energy Efficiency

Financing Solution in the Country.

        Milgard Windows          Marvin Windows

Remodeling and Home Design