I had used this company previously to replace a sling glass window and decided to have them upgrade all the windows in the house. The salesman that came to give the estimate was very polite, professional and prompt! The ordering process was simple and I even got a rebate back from my purchase, so that was a plus! The installation went smooth and the difference is felt in the home in regard to temperature with the new look windows! Thank you! read more

Quality work very impressed. Thanks to Lisa for being an inspiration from the first call to completion. Dave, arrived introduced himself, shown window for replacement, took measurements, told I would receive estimate within an hour. Approved, of price follow protocol of company. I was given the time date for installation, answered all questions. Wow, the gentlemen were on time, professional,courteous, knowledgeable of job to be done and cleaned up on completion. Have more windows to change and will be calling Window Guys again. Highly recommend. Linda C. read more

Recently had 12+1 windows installed. The estimator was David who was very professional and responsive to our questions. We had work done by them before and were pleased with the work. We had two appointments because we forgot about a window in our garage. Day of installation arrived and the Crew of two showed up on time. Their names were Christopher and Mando and they were Fantastic! Incredible work ethic as well as being Courteous and Friendly. Answered all my questions and concerns and I was very pleased and cleaned everything up after job completed. Second window work, a week later, was completed by Cade and Marcos. They too were on time and had that one window installed in no time at all. Same as above they were Friendly, Professional and Courteous. It was a pleasure to do business with the Window Guys and as a 3-time repeat customer, I would not hesitate to recommend them to family and friends. I feel I received tremendous value for my money as the house is quieter and esthetically pleasing as well. Loving the view my new windows provide for the money. read more

We used the window guys to replace our front window in the living room that had broken and shifted the frame. They did an amazing job with our new window and were timely, affordable, and professional. When we are in need of windows we will definitely use them. read more

David Reyes told me that "There was nothing more he could do about my screens that don't fit on my Win~Dor. I would have to wait for them to contact me read more

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We requested to have four windows, one passage door and one set of French doors replaced. The Window Guys were competitively priced and provided quality service. Our overall experience with the installation was extremely good. I would recommend the windows guys to anyone who is planning on having their windows or doors replaced. read more

Excellent installation of 28 windows. The installers were on time. All very professional. The installation was done perfectly. Great quality windows and price. Highly recommend The Window Guys. read more

I was in the market looking for new windows. My parents had used Window Guys and I thought I would give them a try as well. Lisa and David in Rancho Cucamonga we're very friendly and knowledgeable. Their pricing was competitive. I went with them for the install and do not regret it. The day of the installation the crew masked and covered my window openings to minimize dust and debris. Install was quick and efficient. My new Milgard windows are looking great Johnny read more

The Window Guys Rock!! Their professionalism and care to our home was Remarkable! The Windows Guys-cleaned up inside and out... Windows were washed, too!! David handled our quote, he's a rockstar! We had quotes for "Low E", "Dual Pane" energy efficient replacement windows. We love our new Trinsec windows! These guys got our job done in a day! We had 19 windows and 14 Large Windows! (Several windows 10 ft wide by 5 ft high) It was an incredible experience... Thank You 'The Window Guys' Super! CindyH-Chino read more

The Window Guys did a great job for us. We had 18 windows plus a sliding patio door installed. All phases of the project went very smoothly, from the initial visit/measuring through to the install, which was all completed in one day as promised. We are getting many compliments from our neighbors on our beautiful new windows. I highly recommend Window Guys. read more

We purchased 22 windows, 3 French doors and 1 sliding door that were were installed in November, 2022. We dealt with Lisa and David who were very courteous, professional and very helpful, and returned our calls throughout this process. But that's where the helpfulness working with the company ended. On installation day, there were numerous workers, from 8 am until after dark without a lunch or breaks. This job should have taken 2 days to install; however, we were assured it could be done in 1 day. Due to the workers wanting to get the job done as quickly as possible, in 1 day, we had numerous problems. Two of the French doors leaked so badly that there was major damage to the interior of the house. The other French door needed major adjustments so that it could close properly. One window needed repairing because it was inoperable. It has taken them until August 3, 2023 to correct the water leakage into our home from the French doors. It was always stated that it wasn't the Window Guys responsibility, that it was the manufacturer of the doors (WinDoor). Both companies would send representatives out and each would say it wasn't their problem that it was the other company's problem. So while they were arguing between themselves as to who was going to fix the problem, in the meantime the leakage into our home continued. After the initial installation, we had the exterior of the house painted prior to any rains or noticeable issues with the windows and doors. After the rain, and the doors were leaking so profusely, they had to jackhammer out two of the French doors, and restucco. Then one French door (which they had "repaired") continued to leak profusely and it had to be jackhammered out and restuccoed again. This left us with having to repaint the stucco, and unfortunately the repair is definitely noticeable. The restuccoing does not match the rest of the stucco of the house. If you're looking for a quick, fast, tract home installation with a company that does not care about the quality or customer satisfaction, then they are good. But if you're interested in quality and someone addressing installation repairs in a timely manner, forget The WindowGuys as they are horrendous. read more

I have to downgrade my original three stars. Just as I predicted, within a month there are gaps and holes in the caulking they put around my windows where the slope sill adaptor would be. This is a big problem. With all of the recent rains and the ones to come, I will have water piled up behind and beneath my windows where it shouldn't be. I just think of all of the people who don't know any better and wouldn't notice until they had serious water damage. I really wanted my review to be better. read more

Overdue review here. I'm so pleased with my new windows and sliding door. The estimate was in line with other companies and their staff was always professional and easy to deal with. It took a couple of months between the estimate and installation due to back up at the factory, which I do not blame them for at all. The installers they came out took great care to make sure we knew every step of the process and were very quick with what they did, even noting that there were defects in two panes that were sent and reported it for warranty before they even left. I highly recommend getting the extra thickness to the windows, I never hear the freeway now. A++ all around read more

I had two french doors installed 12/21/22 which were VERY expensive. I waited months for the delivery and installation. With the rain, both french doors have water on the tracks inside the house!!David tried to tell me that this is normal 'it will dissipate' and water causes no damage which is absurd. I have owned multiple homes and any water leaking into the house or sitting somewhere will cause damage. I had cheap sliders before and never had any water on the inside track. So far, no resolution and now they are saying it may be a manufacturer issue! Very frustrating to wait this long for expensive doors that are crap. Will update if issue gets resolved. read more

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Had all windows and 2 patio sliding doors replaced with new vinyl units. A crew of 4 guys arrived on time and got right down to business. Professional. Knowledgeable. Experienced. Everything was done without problems or challenges. I'm a happy satisfied customer so I've been telling everyone who asks me. They deserve more business because they proved themselves. I'm happy. Ron Stader read more

Excellent work and process from start to finish. We waited a few months to install due to the busy season. Great people everyone was very pleasant and the windows are fabulous. The outside noise was reduced, our home stays much cooler throughout the days - everything I was hoping for they delivered. read more

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The Window Guys did an excellent job for me. I had two sliding doors and nine windows installed on what turned out to be the hottest day of the year, to date. They sent two teams of installers to my home and were completed within four hours. The installers, estimator, and office staff were very courteous and responsive to all of my questions and concerns. I was concerned about the window caulking cracking and not being able to handle the high desert temperatures. They provided the name and brand and assured me that they would come back and correct any problems that arose in the future. The new Milgard windows are great. They operate well and look very modern. Would highly recommend. read more

The window guys installed all new windows in our house . They were so professional and nice. I had no idea how hard of a job it is carrying windows up the latter onto the roof. They cleaned all the windows after the installation and vacuumed everything. They did it all in one day. We couldn't be happier with our new windows. read more

They did a great job. I was surprised at how well they cleaned after and they were very reasonable. I highly recommend them.

Wow! Wow! Wow! Exceeded my expectations from start to finish. From my initial inquiry, from the pleasant Estimator (I think David?), quick turnaround, responsiveness and a fantastic install job today by Christian and his partner - I honestly cannot say enough good things about this company. I had to replace several builder windows in my home out of necessity. I needed to create a better barrier to keep dust and sand out of my home & went with Milgard. Now I wish I would have done more windows. They were so reasonably priced. Less than half the price of what Home Depot was charging me for the same windows. So happy I went direct! The quality is spectacular and really appreciated the attention to detail on the install. It was quite a job (I honestly didn't realize how big of a job this was going to be) but after working 7 hours in 100 degree weather - Christian and his partner, vacuumed, swept, polished windows inside and out. I mean - wow! Just blown away and so happy I did this. If you are on the fence - stop reading and make the call now, you won't regret it! read more

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This has been a lontime coming review I'm sorry it took so long. This company was great. I found them as I was searching for another company that installed our windows years ago Windor a family owned business that no longer sells to the public; only to other retailers. I learned that the size type of window I needed for my bathrooms-those small narrow ones weren't available from Windor and Lisa stated Milgard is the company they use for other installs. The price was lower than I expected and I was able to schedule an estimate/measure right away and get it installed immediately. Compared to other shops I called that either didn't answer their phones or charged way too much for such small windows including the contractor that remodeled my bathrooms for 1 small dual pane sliding window was about $1000. and I was able to get both windows done right away for much less and didn't have to wait months. As I was told there was a glass shortage at the time and delivery/installs were delayed. I'm glad I found this place will definitely recommend. read more

We had a great experience with The Window Guys. Good price, installation went smooth and the installers were very professional and friendly. The windows look amazing. Happy customer here. read more

We had new windows installed on 4/6 and the screen door for the slider was missing. Apparently the screen door came in a week later but the company has not been able to schedule someone to deliver/install it. We ordered the windows in January and are extremely frustrated that we cannot leave our slider open since there's no screen!! The installers were great but don't understand why it's taking a month to have someone bring the darn screen. read more

We needed a sliding glass door replaced. The custom order took a bit of time but when installation day came, the installers were on time, very friendly and efficient and cleaned up after themselves. And they completed their work in less time than expected. The door looks great! We are very pleased. read more

I had 33 different window sizes and shapes to be replaced. The windows guys came with a six men crew with each team member performing different task. First they provided cover to protect my floors, a crew to remove windows, a crew to install secure windows and a crew to seal windows from inside and outside. Very efficient and professional and completed the work in one day. The end product and final result are windows much better than existing. We choose Milgard windows and they came out aesthetically and much better than we anticipated. Thanks to the Window Guys read more

They were wearing mask and were very friendly when they arrived. They did a quick and very clean job. I honestly have no complaints and would recommend these guys to anyone who wishes to get a window. read more

Quote was higher than Home Depot and they quoted on a cheapest Milgard window. No thanks. read more

From estimate to install this was a great experience. I would highly recommend Bill and his team. They install of 2 sliders, 1 garden window, and 8 windows was done in one day. They showed up on time, cleaned up after themselves, wore masks when needed. The windows are beautiful. read more

Our windows were replaced in the last week of November 2019 and the installers did a good job of being careful and completing the work within a day. I would recommend them to other people in the future. Thanks Window Guys! read more

Bill, the office staff and the installation crew were very professional and efficient. The windows and sliding door are very high quality and customized to meet my needs. I would highly recommend TWG for windows. read more

The team was professional from beginning to end and did an outstanding job. They went above and beyond and I would absolutely use them again in the future. These guys are pros and Linda was very helpful as well. The end result for our French door sliders was above and beyond what we expected. Great Job! read more

Our windows were replaced in the last week of November 2019 and the crew that arrived were very professional and efficient. They did a great job with the installation and cleaned up thoroughly after they completed the work. We will be happy to work with them again since they replace doors as well. The estimation was completed by David and the window crew was Aurelio, Sergio, and Chris. Linda helped us as well over the phone and was great. Thanks for everything! read more

This company is amazing. Explained everything in detail, staff delivered on everything said. Punctual and follow through. I'm already recommending this company to family and friends. read more

Recently replaced some old windows in my house. Found the window guys on yelp and was really happy with their customer service. They were really helpful with understanding our needs and communicated in a timely manner for our install. Day of installation went great, the employees were quick, kind and efficient. Really happy i went with this company. Best quote i received and great quality product. read more

First of all, I was very pleased with the overall experience and end results. I was recommended to the Window Guys by another satisfied customer and close friend. When I called to schedule an estimate, everyone from that first call was professional, informative and courteous. David came over and informed and set my mind at ease as we discussed the installation process. I didn't really know much about window replacement and he gave me simple insight to that. He did say most likely they could finish the job in one day and I was surprised to hear that as I have 15 windows and 2 sliders. We scheduled an installation day, we had to push it out a few days, to the weekend, but their crew came on Saturday and they were respectful of the house, courteous to me and family and they finished in one day, just like they said they would. You could see the care and craftsmanship that all the workers took as they installed and finished the moldings and sealed all the windows. They took time to clean the windows and the area after they were done. I was very pleased with the results and the whole experience gave me more appreciation of my house as the windows made such a difference in the appearance and function in sound deafening and weather insulation. I would highly recommend this company for your window replacement as the whole process was better than anything I expected and the final result was so pleasing. read more

Window Guys replaced all the windows in my house along with two French doors. They were very competitively priced and answered all my questions. They were friendly, knowledgeable, and professional. On window installation day their installers arrived on time and got right to work. They didn't waste any time, had a system which worked well and finished in a reasonable amount of time, including clean up. I chose Milgard's Tuscany windows which I am thrilled with. I have gone through this winter season with the new windows and couldn't be happier. No leaks, the windows don't rattle in the heaviest winds, in fact you don't even realize it's windy outside.....amazing!! I couldn't be happier with the process. I would not hesitate to recommend Window Guys to anyone needing new doors or windows. They did a terrific job, are thorough, knowledgeable and a pleasure to work with. read more

A true pleasure to work with this company! They make the process of selection, ordering and install seamless. Because of the cost we are doing our project in 3 phases and I am so thrilled with phase 1. Thanks Bill and Linda! read more

After a bad experience with another company I contacted them for an estimate. Mark came out and measured and gave me a competitive estimate right away. The customer service was excellent. My French doors are very high quality and look beautiful. I would highly recommend this company for doors and windows. My parents also used them and are just as happy with the results. read more

They installed 2 sliding doors for us. Did a great job in a timely manner. I would use them again.

If you want to save time to compare the market price and save your money, this company is your best choice. Bill came on time and provided the unbeatable quotation next day. Their customer service is great, Linda always replied my email and pick up the phone quickly, she is a nice and hardworking lady. Their installation team came as scheduled, replaced my windows professionally, they left area clean, windows spotless. Thank you. read more