When we hired The Window Factory in October 2024 to install a custom French door with sidelites, we expected a premium product backed by professional workmanship and warranty support. Instead, we experienced nearly a year of delays, shifting explanations, broken promises, and unresolved warranty issues. The installation was originally promised for January 2025. It didn't occur until June 3, 2025--nearly five months late. Unfortunately, the door arrived with multiple defects that we documented immediately, including a dented frame, paint defects, improperly finished grids, damaged weatherstripping, and screen frames whose paint began peeling during normal wiping and cleaning. To be fair, the subcontractors who performed the structural opening modification were professional and did quality work. Our concerns have never been with them. Our concerns have always been with the condition of the product itself and how The Window Factory handled the problems afterward. We reported every issue on the day of installation. We were assured a technician would be out within a week. That never happened. Consultant James later confirmed the repair items had been approved under warranty. We believed the company would stand behind its product. Instead, weeks became months. Timelines repeatedly changed. We were told repairs were delayed because the company was "waiting on parts." Eventually, after months of waiting, technicians finally returned in November 2025. Despite all of the prior explanations about waiting for parts, no major replacement parts were installed. The visit consisted primarily of cleaning drain/weep holes, replacing some weatherstripping, adjusting one interior lock, and using the same bottle of touch-up paint that had already been left at our home months earlier. The dent remains. The paint and finish defects remain. The screen frames continue peeling during normal cleaning. During that visit, one technician acknowledged the ongoing screen issue and said the office would follow up regarding replacement screens with the factory-applied baked finish we had originally been told they would have. No one ever contacted us. The previously discussed refund was never honored. Our follow-up emails went unanswered. More than six months have now passed since that November visit without any meaningful follow-up. What has disappointed us most is not simply that a product had defects. Manufacturing problems can happen. What matters is how a company responds when they do. Throughout this process we tried repeatedly to resolve the matter privately. We accepted compromises. We continued giving additional opportunities to correct the issues. We remained patient through months of delays. Unfortunately, the communication became increasingly inconsistent, commitments were not fulfilled, and the matter was ultimately left unresolved. We paid more than $10,000 for what was represented as a premium custom installation with warranty support. Instead, we were left with a damaged product, unfinished repairs, unresolved warranty issues, and a company that ultimately stopped following through. Our hope is that sharing our experience helps future homeowners make a fully informed decision before signing a contract. read more

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Buyer beware. The sales folks are amazingly kind and good. As you can see from other reviews. But as soon as there is a problem, the company is pretty cut throat. You have a long warranty so you need to be able to know that the company can be trusted. I was hoping that they would approve a change order. But instead it looks like I will have to cancel the contract altogether because they are unwilling to do so. My experience is such that the general manager lied about the late cancellation fee and was looking for me to pay more than the contracted amount. Of course I'm willing to follow the contract required payment. But, it appears he is trying to scam me to pay more. Either way, very unethical dealings. I may have to go to small claims court to end this relationship with this company. Glad I found out now before I committed $20k to the project. read more

I very much regret choosing The Window Factory for my relatively-simple window changeout. The Window Factory (TWF) finally completed work for a 12-week contract signed Jan 17 on Oct 29 -- 40+ weeks, 34 of which were due to TWF's mistakes that they "take full responsibility for". Eyal's false claim in his response to this review that "we fixed it" is based on TWF's claim that the discount provided at the time of contract signing to induce me to sign means they can take any amount of time to complete the job. Therefore, completing the 12-week job after 40 weeks while providing zero compensation for the delay is "fixing it". Presumably TWF believes they are entitled to take any amount of time to complete your work if they give you a discount as well, even if they "take full responsibility" for the delay. Communication with TWF was abysmal, including (but very much not limited to) 4 ignored emails and 2 ignored phone calls leading up to my original review. Eyal finally responded only after I posted my review and offered me $250 if I would remove that review, though TWF offered nothing in compensation for being 34 weeks late if I would not remove the review. I suspect that may be a good indication of TWF's priorities. James (sales person) was knowledgeable, friendly, and helpful, and that demeanor in the sales meeting was a substantial deciding factor in choosing TWF over a competitor with an offer very similar to the discounted offer I was provided by TWF. He continued being helpful up until recently, addressing communications and operations roadblocks surely outside the main responsibilities of a sales role. Unfortunately, James does not manufacture nor install the windows (of course), and I found those aspects of TWF to be unacceptable. Remember that your full experience with TWF will not be solely with James. read more

The Window Factory did an excellent job replacing my two sliding glass doors and one kitchen window. James, their salesman, came to my house and walked me through the process and my choices for window and sliding glass door replacements. James even met me at the warehouse to look at samples. I was replacing "French style" sliders and a window with a more open concept "prairie design." The windows looked remarkably high quality. And James was very professional, detailed, and gave good explanations of the process and timeframe. A sales rep. from another window company came out to give me a competing bid and he fell short of James' caliber. Later Francisco came out to do a detailed measurement, and he was the lead man in charge of the installation. He was friendly, informative, punctual, and answered all our questions. At the arranged time, Francisco's team came out, each with their area of expertise. We watched the process which took about ¾ of a day from start to finish. They took out our old doors/window and installed the new ones. Then the detail guy did a fantastic job of professionally finishing each door and window, so they are very aesthetically pleasing. Then the crew cleaned up the area well before leaving. All of them were genuinely nice and respectful of our property. The windows and doors look wonderful. They open and close freely. The kitchen window slides both ways. And my home looks more open and modern. It's like the backyard is part of our home now. I definitely recommend the Window Factory. The renovations made a huge difference in my home and were a very good investment. read more

The Window Factory - Completed 2nd sliding glass door - Windows Installation Near Me - Simi Valley, California

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Decided to go with this company because their prices were more reasonable compared to other local competitors. In our case, their manufacturing and installation timeline was shorter, which made the decision even easier. Also i believe since it's small business, the overall experience felt more personal and attentive. Happy with results at the end so would highly recommend. read more

This review is just for Francisco, Allen and their team of installers. We had 26 windows and a sliding glass door replaced and they were the best people I've ever met. They were here for 3 days. They communicated everything, were always on time and left everything just as they had found it or better. They were so knowledgeable and professional and everything looks so great. It looks like a new house. I just can't say enough about these guys. read more

Great experience with this window installation company. They were very honest during the whole process and provided clear explanations without pushing unnecessary upgrades. Customer service was friendly, responsive, and very easy to work with. Their prices were reasonable, especially considering the quality of work. read more

I had a hard time finding reliable local businesses for window installation, especially after unpleasant experiences with other contractors. After several appointments with other companies, Window Factory sales guy James stood out as the most genuine and straightforward, without aggressively pushing unnecessary services. I really appreciated his honest recommendations and transparent communication. Since we had quite a few windows and a door to install, we asked for a discount and they were reasonable and accommodating. Overall, it was a very good experience working with this team. read more

Alv took the time to speak with me and addressed all our concerns with patience and care. He was incredibly helpful, as was Hailey. Both provided outstanding customer service! read more

I have decided to lower my review to a single star since the manager decided to reply with more lies. I never had an installation canceled or was ever told that my project was being delayed due to weather or distance. I have all the emails and conversations. Excuses about time off for the holidays, fires (a valid reason for a day or two, but that was about building my unit, not installing it), and forgetfulness were on the list. Promises to write back, call me, and schedule were next. Now, the manager was to claim that I live too far. That was not an issue when they took my money. Maybe the manager should have reached out to me with the truth and worked with me rather than waiting till he gets a bad review? Be careful, folks. It's sad that a company with such a great product can be so deceitful to some of its customers. read more

Got my windows installed here and honestly couldn't be happier. Super friendly staff, fast service, and the work came out perfect. You can tell they really care about what they do. read more

Began window project in Nov 2024 Had windows measured and gave deposit The another person needed to measure and wanted to do at 0630 I said no 2 weeks later person came at 0800 and I gave more money . Fast forward to 12 weeks later Excuse after excuse after excuse This went on to 17 week mark ! I requested refund , needless to say owner was unprofessional ! However I did receive refund after 4 months ! Think about your project ! 4 months 17 weeks Buyer beware Please message for more details Owner ! Or Biz manager ! And I have all screen shots stalked and posted incredible unprofessional messages ! read more

Quality of windows is excellent but this company lacks in customer service. Communication is mainly by text. Our windows were almost 5 weeks later than promised date. No reason why, we were just left stranded. Installer was personable and knew his job well. read more

Be very careful ! My aunt hired this company to replace windows at her house everything was fine the job went well at the end they try to jack up the price for additional work that was completed which is not acceptable. I had a talk with one of the guys and told him that there's no way we're paying extra whatever it was discussed and completed should be honored now they're supposedly going to take us to court I will see what happens. read more

Great quality, value and exlecent customer service! These are a few pictures our new French door slider professional installed and the rest of the windows installed in 2 days by the window factory. It completely changed the look of our home! Al's team did a fantastic job. They showed up on time and were very professional and clean. They paid attention to detail, and they kept us in the loop on everything they were doing. In total, they replaced 22 windows and 3 French sliders. They also did a cut down in our dining, adding the 3 French sliders, which completely changed our dining room! My family and I are very grateful and thankful for every owner, Al, James, and the installers! I would highly recommend the window factory if you're in the market for new windows and doors! Regards, Jorge Torres read more

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Had my parents' windows and sliders replaced and I'm very impressed with the quality of each. They were fast, efficient and respectful of their home. The price is well-worth it. I strongly recommend! read more

Very happy with the staff at the window factory. Al, Hayley, Eddie and the installers were very professional and did an outstanding job. The work was done and completed in a very neat and clean manner. The window openings were carefully covered so not one fly got in my home!! They look beautiful inside and out. read more

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I recently had my windows installed by this company, and I'm happy with their service. They offered a great price and were on time. James was informative and professional, adding to the positive experience. Their pricing was fair, and they delivered exactly what they promised. The installation team was skilled and efficient, ensuring flawless results. They completed the project within the estimated time, causing minimal disruption. I have also asked my construction friend to check the work after completion and he also confirmed that the installation and product was a good quality which only confirmed that this company not one of this shady construction companies which trying to rip you off. read more

Sir, I always knew what I wanted, and most communication was by text. You and the sales rep need to have better communication. The extra cost I referred to is for someone to fix the backwards blinds and to replace the clasps, which would have been at no extra cost through your company. Your goal appears to be to make me out to be a ditzy lady who has erroneously defamed your company. Please do not continue to reply, or I will report it as harassment. read more

From beginning to end, our experience with The Window Factory was fantastic. James came to give us an estimate for a new sliding door and spoke with us at length about the process and answered all of our questions. We were satisfied with the estimate given and they even worked with us to finance. The installation was scheduled 3 months out and they were able to get it installed a month early! On the day of the installation, they were running a little late (life happens!) and they ended up sending another installer to make up for the time which was very kind. The installation was quick and painless, and we are IN LOVE with our new sliding door. They followed up after to make sure we were satisfied. TWF was responsive, courteous, and professional. Wonderful experience! read more

Being very happy with previous work, I called them again to complete the back of my home. I was provided an estimate on replacing 7 windows. They showed up on time, examined and gave design recommendations that I'm glad I went with. Being the second time I have used them, they have showed clarity and professionalism from the beginning. I didn't leave a review the first time I'm embarrassed not to, these guys have been great 5 stars all around. I'm unfortunately out of windows and doors to replace now! read more

Simi Valley - Professionally handled from day 1. Had a few issues during process and it was handled promptly and professionally. French doors,sliding door and 4 windows replaced. Completely happy and for a change...window factory a pleasure to work with. read more

I only had two windows that needed to be replaced, and these guys were one of the only ones willing to give me a quote. A lot of the other companies out there had a minimum of four windows. Installation was done really quick and came out very nice. James was very helpful and informative throughout the whole process. Overall experience was great. Will definitely use these guys again for future installs. read more

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We are so grateful for The Window Factory! We recently bought a home and after awhile noticed our windows were not sealed correctly, very clunky and also deteriorating from the outside. We were pleased with what The Window Factory had to offer and their promise behind their workmanship. Ordering our windows was easy and booking our installation, when our windows came in, was fast and convenient for us. The Installation team that came to our home was very prompt, professional and courteous with our home clean up afterwards. They had to cut into our drywall/stucco to make room for a larger window but they fixed that right up so it was hardly noticeable. We definitely recommend this company to anyone looking for new windows! We definitely plan to go back to when it's time to replace our slider. Thank you, The Window Factory! read more

Save yourself from trouble by going with The Window Factory from the start. Eyal is easy to work with, responds right away, and is very professional. We did 2 windows and a door, which is a small job, but this company will still take care of you as if you are their best customer. The best part of it is the installers. They are really thorough and they keep it clean. I was very happy with Eddie's work. It was not an easy job, but he spent a long time to get it just right. read more

Be very careful with The Window Factory. They sold me the wrong French doors, did a poor installation job and put cheap door handles on expensive doors in a high end home. This place is terrible. We dealt with James and he doesn't know what he's doing and is now ignoring our complaints and taking the position it's not his problem that he sold us the wrong doors, did crummy installation, etc. He claims to be knowledgeable but is really just trying to get sales without any concern for getting things done correctly. read more

We had to replace some of our windows and door; Al helped us with a down to earth approach for the selection; his installation team followed up with fast and clean work; we are grateful for our new windows the the way they were installed . read more

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Thank you, the window factory was an absolutely incredible experience, we used them for 34 units. Very complicated project. We were concerned, but they were able to surprise us with quality work early within our timelines. Everything was done very professionally from A-to-Z, including the installation. Beyond our expectation. Definitely using them again and recommending them. read more

Overall, we are extremely satisfied with the process, pricing, and product that we received from the window factory. The salesman was very knowledgeable and ensured everything was thoroughly explained to. The windows really uplifted our place and feels like im walking in to a brand new home. I did have to change the size of the dog door and ultimately remove it, and they did so as requested and provided me with a new quote. Installation guys did their part and cleaned up everything necessary. The only recommendation for the company that I would recommend, is a possible follow up email every couple weeks with the status of the project! Salesperson did inform me that there would be a period of which we have no contact, but that is about the only thing I would recommend to the local window shop in Simi. Other than that, we have recommended several people to use them and even more so now after install. 13 windows and a sliding door was no small project and they knocked it out the park! read more

As is often said, "I wish I had done this sooner!" After hemming and hawing for years, I finally shopped around and settled on the helpful folks at the Window Factory, replacing six windows from the 1960s in one go. From contract to install did take a couple of months but the end result is fabulous. The service rep came over to help me decide what style to go for and the installers--Francisco and his son Allen--showed up on time and did an amazing job. They had to cut out the old metal and patch around old wood and dents, and remove blinds and such, but they did so expeditiously and quietly. Amazingly little mess and very little dust. They worked tirelessly and with no interruptions to my day or routines. I guess the main positive is that I'm calling them back to do the one remaining job--replacing the sliding patio doors for when I can get the dough together! read more

Wouldn't buy windows through them again. The whole process has been a nightmare. First off it took several more weeks than the original estimated time. When it came to installation they didn't cover a single surface. You can only imagine the debris and dust that was on every surface inside . Upon completion of the project they left saw blades and metal debris all through the my yard and planters. read more

Windows are expensive. This was a case of you get what you pay for. The Window Factory is a complete solution. From initial estimate, to follow up measurements, to in-house custom manufacturing, to install...it's a one stop shop! Accurate estimate, follow up email and texts from James to an earlier install date...all very professional. The install crew were on time, polite, and professional. No surprises on the install and it went very smoothly, one hour total time. If you are looking for a reputable, professional, window solution The Window Factory is your answ read more

The Window Factory - Install this morning by The Window Factory. - Windows Installation Near Me - Simi Valley, California

We had a great initial consultation with James. He was professional, timely, and courteous. The whole process was great, from the initial consultation, all the way through installation. The window installers were on time, professional, and left the areas clean that they worked in. read more

Save your time and call The Window Factory. We had the pleasure of working with James and his team and not only were they incredibly kind, professional, and attentive to what was important to our family; they took the hassle out of the window quoting game and were able to meet and exceed our needs. If I could give them more stars I would. They were honest and upfront about lead times and installed within the time frame they stated when the contract was executed (electronically!!). Asking questions along the way was easy as James always made himself available via text or phone and even offered to work with our HOA to get approvals completed. They provide a quality product that is made right here in California. James makes it a point to check in regularly to ensure we are still loving our windows and truly we love that service; we appreciate that he cares enough to have quality control even after the job has been completed. We had a user error with our screen door that they fixed within a few days. Lastly, the wind here in Simi Valley is no joke and truthfully these windows are amazing. We have not felt the cold or wind with the weather we have been having and we also rarely hear noise from outside (we live a stone's throw from the 118 freeway). Five-star service along with a five-star product. Thank you Window Factory for making our home more comfortable and so much cooler in the hot months and now warmer in the cold months. read more

Extremely happy and very satisfied with The Window Factory! Special thanks to James and the installation crew! We had an emergency situation where our sliding glass door just shattered out of the blue. Found them on yelp and they were able to send James came out to us same day to check out our situation. He broke down the pricings and timeline for us and seemed to be very informed. He was able to get a crew out to remove the shattered door, clear out all the broken glass, and board up the open space. Because of our situation, he managed to expedite the production for our order, which I am very grateful for. It was very hot that day, but the crew showed up early morning, on time, and worked hard to complete the installation despite the hot weather. James was very professional, prompt, going above and beyond to help us out. Kept me up to date along the way, and made sure to accommodate us and ease our stress as much as possible. Thank you to all at The Window Factory! read more

Great company to work with! Efficient and timely from start to finish! I would highly recommend them to work with you on your projects.

We recently had multiple windows broken in our home during construction ( 19 windows can you believe that ) and not only did they respond super quick , but we were helped by James who was beyond helpful!! He gave us an AMAZING quote for our home during such a troubling time . And now we're on the road to getting all the windows replaced so we can move on with our remodel . I couldn't be happier with how great and professional his customers service was. Would highly recommend this to anyone in need of new windows ! read more

We had a pleasant experience with the door we ordered. The price was higher than we wanted to spend, but the door is definitely worth the value. Our Salesperson was considerate and patient; and the installers were professional and attentive to our particular needs. They left us with a brand new gorgeous patio door and no mess to clean up after them. read more

Very polite and responsive reps. Windows were installed on time with no issues and surprises as some contracts tend to have. Good quality for good price read more

I honestly didn't shop around at all so I can't make any fair comparison, but these folks definitely took pride in their work and were always very attentive and transparent with explanations and suggestions. read more