The Window Guys


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.

Areas Served

We cover a large service area which includes Los Angeles County, Orange County, Riverside County, San Bernardino County and San Diego County.

Consumer Experience Rating

To earn the Exceptional Consumer Satisfaction Diamond, the dealer must have 15 or more reviews within the last two years on and maintain an average of 4.5 stars or higher.
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



Monday 9:00am - 5:00pm
Tuesday 9:00am - 5:00pm
Wednesday 9:00am - 5:00pm
Thursday 9:00am - 5:00pm
Friday 9:00am - 5:00pm
Saturday 9:00am - 2:00pm
Sunday Closed


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

The information shown on this page is provided by your local Milgard Certified Dealer which is responsible for the content of and views expressed on this page. Milgard is not responsible for the accuracy of such content, and any views expressed do not necessarily represent the views of Milgard Windows & Doors.

For full dealer information and product availability, please contact your local Milgard Certified Dealer.

The Window Guys is rated 4.8 out of 5 by 45.
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 Best Value for the Money The Window Guys provide an excellent window for the money. Don't waste your time on radio advertisements. The Window Guys provide a quality product at a very competitive price.
Date published: 2017-10-21
Rated 5 out of 5 by from Loyal customer I have personally used this company six times, they have basically replaced every single window and sliding glass door in my house as I needed to upgrade for energy savings. Everything that they install has worked perfectly have not had issues, the one time that they had to come back and fix something was because they didn’t bring enough spare parts but I had no problem with it he was back within the time period specified and he did the work. Beyond that all of their staff are friendly helpful and encouraging and for that reason we will not use anybody else
Date published: 2017-10-19
Rated 5 out of 5 by from My niece recommnded The Window Guys and I'm so glad she did! Love my windows, loved the price, loved the quick response and now with a minor repair I love the timeliness Milguard responded to correct. I recommended to my friend and they have gotten new windows too! My other neighbor is now contacting you as well for installation.
Date published: 2017-10-19
Rated 5 out of 5 by from Great Install Showed up on time! Pleasant attitude! Quality installation!
Date published: 2017-10-19
Rated 5 out of 5 by from These guys are awesome! The Window guys provides fast, friendly customer services. Windows are measured, options are discussed and pricing in right on point. I have already recommended The Window Guys to several people and they continue to impress.
Date published: 2017-10-19
Rated 5 out of 5 by from I had an excellent installation of 8 windows with a great crew. I had the best price, installation, and customer service. I could not be happier with the installation expertise and the personal service of the crew in my home. They were very respectful and knew what to do regarding taking out my old wooden windows and installing the new Milgard windows. I highly recommend this company.
Date published: 2017-09-10
Rated 5 out of 5 by from Best company for Milgard windows I have done multiple properties window projects with the Window Guys installing Milgard's window and sliding doors and I have every single time been so thrilled with my decision I highly recommend them, I have given them numerous referral because I think they do an outstanding job. Milgards commitment to customer service is unmatched, my first Milgard installation was in my Diamond Bar House 15 years ago and when I had an issue after 10 years with one of the windows they came out and took care of it at no cost to me. I would never do any other brand, Milgard is the Best because they back up their product!
Date published: 2017-08-29
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