The Window Guys

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.


251 Dupont Street
Suite 107
Corona, CA 92879
United States

Store Hours

Monday9:00am - 5:00pm
Tuesday9:00am - 5:00pm
Wednesday9:00am - 5:00pm
Thursday9:00am - 5:00pm
Friday9:00am - 5:00pm
Saturday9:00am - 2:00pm

Services Offered

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

About Us

Welcome to The Window Guys Inc. your home for all your window and door needs. Whether it's for replacement of old windows or if you are building your dream home we have it all.

We are a full service sales and installation company. If you are uncertain of what you are looking for or what is available to you, we will walk you through the process from start to finish. Without any middle man or contracted out labor. We have the best in retro-fit installation crews as well as installing for new construction. We do all our installs per AAMA recommendations and use only the highest quality products.

The Window Guys can replacement one window in your home or a complete new house package from blueprints up. There is no job too big or too small that we won't take on.

Awards Received

Areas Served

Los Alamitos, Cypress, Orange, Villa Park, Yorba Linda, Anaheim, Anaheim Hills, Chino, Chino Hills, Ontario, Fullerton, Brea, Diamond Bar, Fontana, Rancho Cucamonga, Alta Loma, Loma Linda, Redlands, Pomona, Upland, Placentia, Dana Point, San Clemente, Laguna Hills, Laguna Niguel, Oceanside, Carlsbad, Lecuadia, Kearny Mesa, Mira Mesa, Miramar, Irvine, Santa Ana, Fountain Valley, Hunnington Beach, Costa Mesa, Mission Viejo, Tustin, Corona, Norco, Menifee, Murrieta, Temecula, Eastvale, Lake Elsinore, Winchester, Moreno Valley, Yucaipa, Beaumont, Banning, Hemet, San Jacinto, Palm Springs, Cathedral City, Palm Desert, Bermuda Dunes, Indio, La Quinta, Rancho Mirage, Cherry Valley, Highland, Calimesa, Morongo, Rialto, El Cerriito, Jurupa Valley, Walnut, Hacienda Heights, La Habra, La Mirada, Buena Park, Norwalk, Downey, Long Beach, Seal Beach, Rancho Bernardo, Poway, Escondido, San Marcos, Vista, Hidden Meadows, Fallbrook, Bonsall, Carlsbad, Del Mar, Rancho Santa Fe, Fairbanks Ranch, 4S Ranch, Scripps Ranch, Carmel Mountain


The Window Guys

See All Reviews
The Window Guys is rated 4.8 out of 5 by 50.
Rated 5 out of 5 by from The WindowGuys were professional, timely and excellent in the installation of my windows and garden window, The WindowGuys were professional, timely and excellent in the installation of my windows and garden window. Their prices were competitive. I was very impressed with the workmanship and highly recommend them to others looking for Milgard Window installers.
Date published: 2014-07-09
Rated 5 out of 5 by from Great price and service for a window with installation I was looking for a company that can help me replace my window for weeks. I was frustrated because many of the big box stores charge quite a bit for installation. I went to The Window Guys (MIlgard Windows Dealer Corona CA) and my problem is solved. It was installed very professionally for a reasonable price. I highly recommend the Windowguys Inc. for any of your window needs.
Date published: 2018-03-30
Rated 5 out of 5 by from Great service. Windowguys provided me withe best service and price.
Date published: 2017-12-14
Rated 4 out of 5 by from great personnel inside and outside the office I'm happy that I found Window guys company they have a great experience and I don't need to worry about their job. thank you and like I said I can tell someone else this is a good company and they can trust.
Date published: 2017-11-29
Rated 4 out of 5 by from Good price; good service All is good with this company. No issues. Some of the white calk they used seemed to shrink after only a couple of weeks. I filled in the gaps and so far so good.
Date published: 2017-11-29
Rated 5 out of 5 by from Awesome service and product! Awesome service and product!!!!!!!!!!!!!!!!!!!!!!!
Date published: 2017-11-28
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