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 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
Rated 5 out of 5 by from Quick to get quote, order came in early and quick installation Quick to get quote needed, great pricing when compared to other companies, time availability beats others which is why I chose The Window Guys. Windows came in earlier than expected, and installation was fast, completed within one day. However, after installation, they told us one of the screen was not wrapped properly. It took a total of 1 month to get replacement due to several excuses. They also charged us more on our cc since they did not notice the $1k deposit. Just a few missed disconnect but overall a really good experience and would still highly recommend or use them again.
Date published: 2017-08-27
Rated 3 out of 5 by from Great Product - Slow Response Sales personnel are friendly, knowledgeable and helpful. Installation crew is great to work with.
Date published: 2017-08-25
Rated 5 out of 5 by from Wonderful company The window guys has been a pleasure to work with. They are so professional from the estimator, yo the installers, and people in the office. I have had a LOT of work done to my house since then and you can't beat their company
Date published: 2017-08-23
Rated 5 out of 5 by from Separated from Crowded Field I had five very highly recommended companies quote our 26 window replacement project. There were nuances and challenges. We needed opinions, and recommendations. That included fit issues and "new construction " or nail ons versus retros. The Window Guys, and Bill Iverson in particular, stood out. He had answers that others did not. And ideas. And the execution (installation) was probably as good as it gets. These Window Guys are Really Good Guys.
Date published: 2017-08-22
Rated 5 out of 5 by from This dealer was great This dealer was very helpful and has great customer service and the installers had good customer service to
Date published: 2017-08-22
Rated 5 out of 5 by from Great experience! We had a window in a shower of a recently purchased home that needed to be replaced. Called several places for estimates The Window Guys were right in the middle price wise. But the gut feeling I had after the estimate made me go with them. Great guys, professional, on time, cleaned up after themselves, and left me with a beautifully installed window. I would recommend them for any window needs!
Date published: 2017-08-22
Rated 5 out of 5 by from These Guys Get The Job Done! I had 8 retrofit windows, 3 Sliding glass doors and 1 exterior door installed. About 6-7 guys showed up and 6 hours later all work was completed! I was very impressed. Every one got down to business right away. The installers were helpful and professional. I would highly recommend this company for your windows and doors project!
Date published: 2017-03-26
Rated 5 out of 5 by from Very happy Great team, cool people, great price, clean work. 4 hours ,7 windows, house is so much nicer. Well worth the money.
Date published: 2017-03-19
Rated 5 out of 5 by from Would definitely recommend them! Very professional company that answered my questions throughout the entire process. David knew his products well and helped me pick the right windows. Installers delivered ahead of schedule. Prices were better than competitors. Would definitely use them again!
Date published: 2017-03-18
Rated 4 out of 5 by from Sales Team & Intallers were awesome. Office staff is lacking. Bill who provided the consultation and quote was excellent. Installers did an awesome job. I really appreciate them taking extra time to hang my blinds after installation. I love my Milgard windows and will be contacting The Window Guys to do the other half of my home in the near future. The only area where they could use improvement is the office staff. The girl who scheduled the appointment and answered the phone when I called to make my down payment was rude and didn't seem well trained. When I called she couldn't even find my quote and by the time she emailed me the info to pay it was several days later and I had already gone in personally to give my deposit. Customer service & polite front office staff goes a long way so if The Window Guys improves in this area I would give 5 stars.
Date published: 2017-03-17
Rated 5 out of 5 by from Outstanding customer service. I had my entire house retrofitted with Millard windows. Windows not only look excellent they perform awesome! The Window guys did an outstanding job on installation.
Date published: 2017-03-16
Rated 2 out of 5 by from Window LEAKS ! ! ! ! Purchased 4 Milgard vinyl windows last month and one of the windows leaks around the top of the frame. Will contact the company to see what can be done to fix this.
Date published: 2017-02-20
Rated 5 out of 5 by from Great People if you are thinking about buying from Home Depot don't even though the window prices are slightly higher and better quality they are pro's and have better labor rates overall its so much easier 1 stop shop I have had 3 doors and 8 windows done now more to follow
Date published: 2016-11-16
Rated 5 out of 5 by from Very Satisfied I requested several quotes from other dealers and contractors. I went to Anderson, and American Vision and their customer service wasn't as good as The Window Guys. Home Depot was very expensive and actually gave the most pressure on the presentation. The Window Guys let their price, service and professionalism do the talking and I decided on going with them. I was very glad I did. I have installed different windows before: Anderson, Pella and Milguard. I have always been very satisfied with all 3 and was glad that this company offered a window with known quality. I will go to The Window Guys again when I replace my doors and additional windows on my house.
Date published: 2016-11-16
Rated 5 out of 5 by from Outstanding Company and Quality Installation!! We just had 12 Milgard Tuscany Windows and a Milgard Tuscany Sliding Door installed by "The Window Guys" on July 25, 2016. Wow, are we ever are glad we used this company. The salesman who quoted us named Bill was very knowledgeable about quality Milgard products and about his company qualifications. He was not pushy either. Their prices are great and $75 installation per window is really unbelievable. We used the Hero Program and we are so pleased with our awesome new windows and patio sliding door. The three installers, Aurelio, Sergio and Chava, were the best team of installers we have ever had do work for us. My wife and I are in our 60's so we have had work done at our home many times. These three guys were so professional and skilled in what they did it was amazing to watch them. Top of the line for sure. I highly recommend this company and of course the quality and wonderful Milgard Tuscany product line! A Very Satisfied Customer!! Steve from Moreno Valley.
Date published: 2016-07-28
Rated 5 out of 5 by from very professional, very efficient I had all of my windows and sliding glass doors replaced. They showed up on time and got right to work. It was impressive to see how efficient and fast they were. They did a beautiful job installing everything. They left the house as clean as it was when they came. Watching them work I realized how important it is to hire a company that knows what they are doing. They did not need to hesitate to figure out what to do. It looked like it was second nature for them.
Date published: 2016-04-27
Rated 5 out of 5 by from PROFESSIONAL ESTABLISHMENT My husband and I are building our first home and The Window Guys supplied and installed our French Doors and Sliders (12' Slider) The entire experience from show room shopping, working on the order from our plans, delivery on time and installation was impeccable. Professional, honest and great customer service. THANK YOU John Myerly and y our entire team for taking the stress out of this part of our build. Paul and Kelly Primerano
Date published: 2016-04-09
Rated 5 out of 5 by from AAA Service all around Came when expected, fast professional couldn't believe then came in and just got the job down, thought it would take take days and they were in and out in less then a day. Loved dealing with John the owner.
Date published: 2014-10-28
Rated 5 out of 5 by from Excellent service The Window Guys were very professional and finished my job on time.
Date published: 2014-10-16
Rated 5 out of 5 by from Excellent work ethic, on time and very efficient The crew that was sent out was enough people to do the job in the time they said it would take. They just did not send out a couple of people and say this is what we have to work with.
Date published: 2014-10-03
Rated 4 out of 5 by from Great service and quick service Window Guys & Milgard installers were both professional, prompt & a pleasure to work with.
Date published: 2014-10-03
Rated 5 out of 5 by from We have used them twice now and they are fantastic. Will definitely refer people to them as we were a referral from a friend as well. Love the windows. Nancy
Date published: 2014-07-01
Rated 5 out of 5 by from This a professional window install From the minute the Window Guys started the job till the finished Job it was a unusual experience. The guys all had their job to do and everything was completed as they said it would. They worked neat and clean and it was as if they had never been here when they left.I have recently referred them to two of my friends. The Windows are very well made and look and operate as I was told. I couldn't be happier . Thanks to the Window Guys!!!!~
Date published: 2014-06-27
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