Diamond Rating

To earn the Showroom Diamond, the dealer must have a showroom with a minimum number of Milgard products on display.
To earn the Web-Site Diamond, the dealer must have their own Web-site with information about the Milgard products and the services they sell.
To earn the AAMA Certified Diamond, the dealers must have at least one member from each of their installation crews complete the AAMA Installation Masters training and pass the AAMA Certified Install test.
To earn the Product Knowledge Diamond, all Dealer Sales Consultants must pass a series of standardized Milgard administered tests demonstrating Milgard product knowledge.


2633 E 28Th St. Ste 610
Signal Hill, CA 90755
United States

Store Hours

Monday8:00am - 4:30pm
Tuesday8:00am - 4:30pm
Wednesday8:00am - 4:30pm
Thursday8:00am - 4:30pm
Friday8:00am - 4:30pm

Services Offered

Consumer financing
Free estimates
Has Showroom
MGWS Dealer
New construction
Offers installation
Replacement Specialist

About Us

1stWindows.com has online pricing. We are the first online window dealer and started selling online in January 2000. We are also your traditional Milgard window & doors dealer with a showroom. We have the distinction of being one of the largest Milgard Certified Dealers and have online pricing. We are your online window super store with thousands of custom sized windows and doors available to be priced. Call or e-mail us today. We are a subsidiary of California Distribution Center, Inc.

Awards Received

  • Milgard Dealer of the Year 2017
  • Platinum Dealer of the Month November 2016
  • Platinum Dealer of the Month June 2016
  • Platinum Dealer of the Month October 2015
  • Certified Dealer 1997

Areas Served

Signal Hill, Long Beach, Anaheim, Buena Park, Cerritos, Cypress, Fountain Valley, Fullerton, Garden Grove, Huntington Beach, La Palm, Lakewood, Los Alamitos, Newport Beach, Seal Beach, Torrance, Westminster, Palos Verdes, Rancho Palos Verdes, Wilmington, San Pedro, Gardenia, Harbor City, Orange County, Costa Mesa, Laguna Niguel, Laguna Hills, Laguna Beach, Laguna Woods, Mission Viejo, Anaheim Hills, Irvine, Dana Point, Rancho Santa Margarita, Coto de Caza, Trabuco Canyon, San Clemente, San Juan Capistrano, Lake Forest, Orange, Foothill Ranch, Capo Beach, Capistrano Beach, Yorba Linda, Villa Park, Buena Park, Stanton, Sunset Beach, Aliso Viejo, Inland Empire, Los Alamitos, Rossmoor, Santiago Canyon, Santa Ana, Tustin, Brea, La Habra, Placentia, Downey, Ladera Ranch, Torrance, Redondo Beach, Hermosa Beach, Manhattan Beach, Hawthorne, Midway City, North Tustin, Mammoth Lakes, Denver, Lake Arrowhead, Portland, San Bernardino, Riverside, Tuscon, Fresno, Tempe, Prescott, Sacramento, San Francisco, San Diego, Las Vegas, Phoenix, Fresno, San Jose, Paso Robles, Bakersfield, Newport Beach

2633 E 28Th St. Ste 610, Signal Hill, California, United States 90755



See All Reviews
1STWINDOWS.COM is rated 5.0 out of 5 by 81.
Rated 5 out of 5 by from Fantastic experience I have used California Distribution Center to replace my old, creaky windows in two houses now and have found Doug Lopez's knowledge, professionalism and promptness to be first rate. Additionally, I have recommended his company to many friends and neighbors over the years and will continue to do so as I've not found even the slightest reason to shy away. The Milgard windows that were installed throughout the homes work flawlessly and look fantastic. The windows were custom fit and are obviously very high quality.
Date published: 2015-06-04
Rated 5 out of 5 by from Amazing customer service! I usually don't write reviews, but I had to give a big shout out to 1st Windows. The previous homeowner purchased Milgard windows and one of the locks had stopped working. I contacted several other authorized Milgard dealers and they refused to help because I did not purchase the windows from them. But 1st Window was willing and went out of their way in locating a spare lock to replace the broken one and provided it at a very reasonable price. I know I will be calling 1st Windows when I replace the rest of my windows. Highly recommended!
Date published: 2022-05-05
Rated 5 out of 5 by from A true craftsman The owner is able to articulate procedures to someone who isn’t familiar with the process. His attention to detail and his engagement with the changes in the industry shows in his finished work. Highly recommend!
Date published: 2021-11-10
Rated 5 out of 5 by from Top Notch and Great Customer Service We have used Doug and 1st Windows to replace all the windows in our home. His customer service has always been great and the quality of his work is always top notch. We have been very satisfied with Milgard windows and have recommended them to friends and family.
Date published: 2021-11-06
Rated 5 out of 5 by from Excellent Doug was Professional, timely, and did a quality job
Date published: 2021-11-05
Rated 5 out of 5 by from Great customer service. Their attention to detail and customer service, will keep me coming back for my future projects.
Date published: 2021-11-03
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