I had 9 windows installed last week and the CWM crews did excellent jobs from start to finish. From initial call to measurement and pricing and installation extra sealing in and out sides of the windows. Also protecting the work area with work cloth helps minimize vacuum later. Jacek did excellent jobs on giving me 3 different brands windows to choose from and his employees, Arnasto, Roberto, and Armando are great on their work! read more

I called Ca Window Masters for an estimate and the staff who answered the phone was polite, efficient, and very helpful. She made every effort to accommodate my appointment on the day and time I requested. Jacek Pasternak the rep or supervisor came on time. He was very quick, knowledgeable, and professional. The quote from Jacek for windows and door (retrofit as well as new construction for the different manufacturers and models) was received that very same evening, as promised. I also note that the quotes I received from them were very reasonable, much lower than the quotes I received from other companies for the exact same manufacturer and model. I would highly recommend Jacek Pasternak and California Window Masters in San Ramon, CA. I believe they serve the entire Bay Area. Give them a call. Dominic Macapinlac Benicia, CA read more

Excellent service, we had a very complex project where other companies couldnt complete project. California Window Masters met all of our needs, they where professional and thoughtful throughout process. Erick and Frank the installers were terrific, well done job and cleaned site after work was completed. I would definitley recommend there service to anyone. read more

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A year ago, California Window Masters installed dual pane windows throughout my house. What a difference! My home has stayed surprisingly cool all summer! The entire process from sales to installation was very smooth and easy. read more

I would highly recommend California Window Masters! From ordering the correct windows, to planning the installation to the final product, Radek, Jacek and the installers were awesome to work with and will definitely work with them again for my next window project. read more

this is revised after they come back to install the missing screen door Just a feedback: The job started smoothly and the team did it really quick. When they replace new window and patio, they broke all the old one. My family member have told me that their contractor did not do that. I'm not sure if this is necessary or it make the job faster. For sure they did the clean up, but we spent extra time to swept every corner to clear up glass shards left behind. Also, when replacing glass windows, you need to be at home, pay attention to safety, and watch all the details; otherwise, it will take e while to contact them afterward. read more

California Window Masters did an excellent job on my rental property and I would highly recommend this company for any and all window/door installation! read more

California Window Masters is efficient and produce high quality windows and service. The value is much better and cheaper than other quote. The service requested went through very well and I highly recommend California Window Masters! read more

Just replaced 4 bedroom windows, 1 bathroom window and two patio sliding doors on my 40 years old condo. The whole process from quoting to finish installing took about 6 weeks, not counting the week I waited for my HOA to approved the job. Communication was great. The crew that did the install was efficient and cleaned up the place really nice afterwards. They showed up at 8:20 AM and finished before 2:00PM. The price was competitive compared with few other companies. I would recommend this company. read more

California Window Masters - Patio Sliding Door with new moldings - Windows Installation Near Me - San Jose, California

This is the first time I've ever written a review for any service or product, but I had to comment about my positive experience with California Window Masters. I emailed three window companies about replacements for my very old windows. Justyna from California Window Masters responded the same day. Since I was contacting several companies, I asked Justyna if all correspondence could be via email so I could organize separate files for each quote. She was more than happy to do so. I sent her the measurements for 15 windows and Jacek respond with three very reasonable quotes within the week. I realized I didn't specify the type of windows I preferred, so I inquired what the cost difference would be if I changed all window type to double hung with three windows having textured glass. Jacek had no problem sending me new quotes. I had several (and I mean several!) questions about the brands, warranties and installation and Jacek patiently answered each of my question. I decided to add a glass French door to the quotes and Jacek reworked the quotes to include the door. When I finally received the quotes from the other companies, I chose California Window Masters because they had the best prices for quality window brands. Once contracted, Radek came out to do the final measurements. He arrived on time, was professional, meticulous with each measurement, and also answered several questions. Four weeks later, Ernesto, Armando, Roberto and Fernando arrived on schedule to install the windows. They were professional, friendly, fast and efficient, and did great work. They did all windows in approximately four hours, including clean up! Due to manufacturers delivery date, Ernesto and Roberto returned to install my door at a later date. Again, they were on time, professional, very cordial and efficient. It took them approximately 1.5 hours to install to new door. I chose California Window Masters because they were professional, quick to respond, patiently answered all my questions and concerns, had the best prices, quality workmanship, and their customer service was superb. They were all great to work with and I will definitely use them again if I have any future projects. I love my new windows and door and I highly recommend them! read more

I had 3 Milgard windows and a patio slider installed. CWM was easy to deal with and their price was very competitive. Installation was smooth and I'm very happy with the windows and their work. The only issue I had (reason for 4 stars instead of 5) was that they cleaned off stucco in my gutter and left a bunch of white powder. However, when I brought it their attention, then sent someone back out to take care of it. (Thanks Jacek!) So I would recommend them! read more

I've waited to leave this review to see the outcome of the manufacturer warranty. I met with Jacek before my house closed escrow in December 2023 or January 2024 because I knew the first thing that needed to be done was to upgrade the windows (and there were a lot) that were original to my 1990 home. He was one of six quotes I received. What I liked about him: He didn't come across too "salesy." He didn't employ gimmicks like some of the other salespeople. He didn't try to sell me on unnecessary upgrades. He was in and out and provided the estimates the same day. He gave me the impression that he had a ton of experience and that employing sales tactics was simply not something he needed to do. He's straightforward. I appreciated that. His quote was on par with one other company, while the others were significantly higher. I received several estimates from him as I was weighing the option of white-framed windows versus black-framed windows. I was also considering whether I wanted to go with Milgard or Simonton. The black-framed windows were double the cost of the white-framed for both manufacturers. I, ultimately, decided to go with the black-framed Simonton because the frames were slimmer, and I knew they would look great with my interior white walls. Installers arrived on the exact dates that Jacek provided. We had a bit of a situation with the French doors being installed far too high off the ground which created a tripping hazard. After a bit of an escalation to Jacek and his son, the installers eventually fixed this issue, and it was ultimately resolved. The windows, however, were a disappointment, to say the least. Many of the single hung windows were installed with cosmetic defects. What I received: Windows with chipped corners. Windows where the coating wasn't evenly applied and revealed the white window underneath. If you're like me and expect your brand-new, black-framed windows to arrive in pristine condition, do not buy Simonton. I paid almost double the amount of what it would cost for white-framed windows to have the aesthetic of the black-framed windows in my new home. Once the windows were installed, I noticed blemish after blemish. There is no QA process prior to install. See pictures. I raised this to Jacek at which point he quickly opened a case and passed me onto Simonton. 5 months later, the technician arrives, runs his finger along where one of the issues is, continues to chip more of the black coating off (essentially making it worse) and then tells me there is nothing that can be done. He tells me this is the quality of the windows that Simonton produces, and if he orders a replacement, it will arrive in the same condition or worse. So, if you spend tens of thousands of dollars on black-framed windows, do not buy Simonton. I would almost recommend going with the white windows or, if you buy the black-framed windows, consider spending more for a quality brand. 1 star for ease of doing business before install 1 star for adhering to the install timeline that was agreed upon 1 star for being willing to correct the install of the French doors 0 stars for installing cosmetically defective windows 0 stars for recommending a manufacturer that does not care about the quality of their product read more

California Window Masters - Windows Installation Near Me - San Jose, California

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Ernesto and Roberto installed the whole house windows for us, 17 windows + 1 sliding door, they did very good job. Especially the garden window, which cannot be done by retrofit, has to be done by new construction. They spent almost 6 hours just for the garden window installation for us today. we are very satisfied with this installation. read more

California Window Masters provided the best window installation experience. Everything started with the best value for the most suitable window model. They knew exactly which brand and model fit my needs for noise reduction and my uniquely sized window. (My window is huge and arched, and only real professionals like California Window Masters know how to handle it. Salespeople from other companies either quoted absurd prices or suggested modifying the structure, which would have added significant cost.) On the installation day, the team arrived with floor covers, worked quickly and quietly, and cleaned up thoroughly before leaving. Many thanks to these real professionals! read more

We got all the windows replaced by California window. The team that came out for done a great job. Only reason for three star is they did scratch my brand new wood floor at three different spots and did not point it out I didn't notice it until they were gone also broke a roof tile in the front of the house where they were taking the windows up I have extra roof tiles All they had to do was just tell me and be honest about it It would be appreciated if somebody just wish that out for me read more

My home needed new windows after 30 plus years, so my friend highly suggested California Window Masters. The process from start to finish was efficient and stress free. Jacek provided us with 3 different quotes for 13 windows and 1 patio door. He also provided brochures and answered my questions of the differences in windows promptly. The prices were affordable and reasonable. We choose the Simonton Windows. The day of installation went smoothly. The installation team were very professional and worked efficiently as a team. They were also approachable and answered questions we had. They treated our home with respect and cleaned up throughly. They finished in a day. We are sooo happy with our new windows and can already feel a difference. I will definitely recommend this company to anyone who needs new windows. read more

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Great Service. We got 11 windows and a Patio door replaced from CWM. Jacek helped us with entire process in Milpitas area. He is very professional to work with. He visited the location and provided us with 3 quotes for different windows manufacturers. Based on our research, we found the prices to be very reasonable. We chose a date for windows installation which was a month from our very first appointment. Installation took one full day and 3 hours the next day. On the day of installation, his team arrived on time and did a very good job in installing all the windows and a Patio door. They replaced the windows and took care of all the trash. Payment was made via check which was mailed directly to CWM. During the entire process, Jacek helped us with all the queries. He was very easily reachable. He is very knowledgable and professional. I strongly recommend him for the windows replacement projects. Thanks for the great experience. read more

California Window Masters - Windows Installation Near Me - San Jose, California

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Radek was very easy to work with. Emails were extremely helpful and supplied all options available, in addition to pamphlets and window types. They did such a great job on my one rental in San Lorenzo, that we hired them again for another rental and will continue to recommend to friends and family. Prices are very competitive and even lower than most if you go with the lower-end, but still guaranteed windows. We prefer Milgard, and the windows were installed in ONE DAY! I was so surprised. The before and after pics will be taken as soon and posted. Only disappointment was that I wasn't able to pay quickly with Zelle or Venmo, which meant that I had to either write and send a check by US Mail or pay thru my bank, which would take 3-5 working days to get to them before they ordered the windows, so I had to drive to rental at leave a check there for them to pick up. read more

So we had a window contractor lined up to do our installation. I came across Radek & California Window Masters and decided to get one more estimate. Being nervous and skeptical about new black windows, Radek assured us that it would compliment our little home with a few mountain/hill views in South San Jose. Boy were we blown awag with the clarity of the glass and outside views. Not to mention the crew that came to install. They neatly covered our furniture with plastic & covered floors with cloth tarps. In few hrs they had most our windows up with ease. They made it look like a DIY effortless install . They cleaned up and packed up as if we had a maid with no debri/garbage left behind. Once again I wanted thank Radek & the crew for a phenomenal professional job and definitely recommended to my neighbors and family. read more

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I got my patio door screen installed yesterday. I am satisfied with the new screen door. I am raising to 4 stars withholding the last one for the delay. The installation was efficient and they clean up good after. read more

California Window Masters presently install new windows and door for my property in Brentwood. Jacek had gone through with good advises during the process. I totally satisfied with his job. I definitely work with him again this year for my new project. read more

I had been putting off doing a whole house window replacement. I should have done this years ago. Cal window masters, came out. Gave a fair quote with several options to choose from. When I accepted they sent a final measure person out. Window came in on time and install took less than 2 full days. looks like new and I will be recommending to friends. Redek was fair, honest and always followed up with texts and email on status. Rich M. Los Gatos. read more

California Window Masters - Windows Installation Near Me - San Jose, California

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We went with California Window Masters to retrofit our windows. They were extremely prompt to respond, took measurements and gave informative brochures. They also responded quickly to emails/any questions that we had and gave us a competitive quote. The installation date got pushed back by a week but they communicated that quickly as well. Installation was efficient and done in 4ish hours. Special thanks to Radek, Fernando, Roberto and Ernesto for their help and work! Looking forward to replacing the rest of our windows with them soon! read more

Great company with fast and responsive service. Jacek got a quote to me within 1 day. He was flexible with issues that arose in the middle of the process. Quoting process was transparent and clearly showed the costs so there were no surprises and a good decision can be made. On the day of installation, the window installation work was done within a few hours including removal of old windows/patio door and installation of new ones in a somewhat complex situation. All installers were highly experienced and answered questions very well. I was amazed at how efficient they were. They cleaned up as well. read more

TLDR: Best price (by miles and miles), great communication, quality work. If you're looking to upgrade windows reach out to these guys. Went out for 3 other quotes and CWM came in cheaper by a significant amount. Honestly, I was a bit skeptical but the reviews pushed me over the edge. Got connected to Radek, he came out, gave me the sales spiel, and had quotes the same day. Went with Milgard Trinsic based on Radek's recommendation. Once the contract was signed, Radek came out to do a full measurement. He was always prompt, communicative, and efficient. One of the windows was too large and only supported in the more expensive Tuscany trim. CWM honored the original contract price (so basically got a Tuscany window for the lower price!) Once new windows were in a crew of 2 came and knocked out 8 windows in about 5 hours. The entire process took about 7 weeks. I highly recommend CWM. The team is great to work with and their prices (as far as I can tell) will be very hard to beat. I'm enjoying the new windows + fresh air circulating through my home! read more

Superb service. Jacek and his team were wonderful to work with from start to end. I had collected 12 bids for window replacement before making my decision to proceed with CWM. The decision was driven by quality and cost. Jacek is very knowledgeable and responsive. We met a couple of times prior to placing the order as I had a few options to consider for my project, replacing 13 windows and 1 door. It took about 5 weeks to wait for the installation date from contract signing date. The team of 3 arrived at 8:30 am and were done by 5:30 pm. They were very respectful of my house. Cleaned everything after themselves inside the house and on my driveway. read more

Please save yourself the hassle of obtaining quotes for your windows from other providers. Contact Radek at California Window Masters at (925) 980-7778. Radek was prompt, efficient, and responsive to any questions I may have. Radek also provided the best pricing out of all of the vendors I contacted. read more

We had our windows installed today by California Window Masters. Radek, came out to give us the estimate. He was prompt, courteous, extremely knowledgeable just a pleasure to deal with. Today's installation went flawlessly. Ernesto and his crew worked like a well-oiled machine. Tarped the floors vacuumed up when they were complete. Left things just the way they found them. And the final product looks incredible. Both my wife and I are very pleased and impressed. We will absolutely recommend CWM to our friends and family. Thank you, CWM!!! read more

I am writing this review on behalf of my landlord Mike- California Window Masters did a fantastic job on the window retrofit for my condominium. They were extremely pleasant and knowledgeable with getting the job done. They arrived on time, and did the job quickly, efficiently, and were very clean and professional throughout the entire process. Ernesto was the lead on the job and was phenomenal with landlord, tenant, and crew. I strongly recommend California Window Masters and would give 10 stars if possible. Thanks again for the great work and experience. read more

Jacek and his team did a great job in our windows and sliding doors installation. Jacek is very knowledgeable and answered all my questions and concerns in a timely manner. There was a glitch in getting all of my order (3 sliding doors and 5 windows) for the initially planned install date, but because of that delay, Jacek had a large crew work on the following Saturday (9 days later). The installers did a great job and cleaned up afterward. Overall, the price, communication, and installation was exceptional; I highly recommend CA Window Masters! read more

Had a great experience with California window masters, I love my new windows! Big shout out to Radek, he is very knowledagable and patient, he helped mananaged my window replacement project from begining till the end. He helped me find the best option that fits my family need and stayed within budget. The windown installation was very efficient too, the team used 2 days to retrofit a dozen of windows and sliding doors. read more

Jacek and team did a phenomenal job! Team was on time, courteous, tidy work, cleaned after! All in all, we are very happy. read more

Estimate: 3/5 Final Measurement: 5/5 Communication: 3/5 Cleanliness: 4/5 Installation: 5/5 Post Install Cleanup: 5/5 These ratings represent: - a discrepancy with the estimate/invoice but I appreciate the reconciliation/compromise/suitable agreement - plaster/stucco work for 14 windows is a big mess but they left the job site clean enough considering - overall communication could have been better - in the end, I was happy with the cost, window quality, craftsmanship/installation and final result read more

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On time, responsive, good prices, even cleaned up after installation. Highly recommended.

Phenomenal job!! I can't say enough. Price was great. We were really happy with response time when we had a question. Everyone was knowledgeable & nice to talk/text/email with. They even answered us several times outside of business hours. We live in a townhouse complex, the exterior is stucco. I was apprehensive about the look of replacement windows over stucco but these professionals ROCKED IT! IMO my townhouse has the best installation result. We are really happy. I would recommend. Thank you CWM read more

Fast and reliable aren't just words. It was my reality. CA Window Masters came through for us during a supply chain meltdown. I highly recommend. -Chris read more

Estimate: 4/5 Final Measurement: 3/5 Communication: 2/5 Installation: 3/5 Post Install Cleanup:2/5 Note: We completed this work during COVID SIP. We installed a total of 10 Simonton Windows. Estimate: Jecek showed up about an hour before the scheduled time, which was no big deal since we were already home. He did a quick walk through from the outside of the house and took a couple of measurements. He's very knowledgeable and was able to answer my questions. We discussed window sliding directions during this time. He provided a quote to us within 24 hours and followed up with us to see if we had any questions. California Window Masters was the lowest quote we received. Quote/ Final measurements: Once we signed the contract, someone was sent out to complete final measurements of our windows prior to ordering. We had an appointment at 9:00AM , but he showed up at 7:30AM. That was a little rough since we were still asleep. He came inside to complete his final measurements. I wanted to confirm window sliding directions were consistent with what we discussed in the quote, but we ended up going over sliding directions again. Lead Time: 3 Weeks to get the windows. Communication Prior to installation: I wasn't very impressed with communication at this point in time. We were able to schedule an installation date, but I didn't feel like we were getting all our questions answered. Some questions we had to email a couple of times before getting a response. Other questions we continued to ask without getting any response. For example, since we weren't confident about the sliding directions, we asked for final layout or confirmation of what direction each window was going to slide open. Jacek didn't ever provide us a response for this or let us know that's not something they do. We emailed this question to him in several of emails. Installation: One of the three didn't have a mask on for most of the time he was working in the house. I was slightly concerned since COVID hasn't really been contained. A crew of 3 came to complete the installation. They completed the entire installation in about 5 hours. All the windows went in the direction we wanted them to be installed! This was much faster than I expected. Note, for this type of installation, installers don't put on booties over their shoes, so we lined the carpet with coverings. They do line the floors near the window with tarp. Since are windows were older, they chiseled and hammered the glass during demolition to remove the older windows. After installation of the windows, they sprayed down the windows and did a quick vacuum. They removed the glass and old window screens. We tipped them well since they finished the work quickly. Cleanup: After the crew left, we vacuumed the entire house 3 times, swept, swifered twice, and mopped. We found glass shards on everything. Over the next couple of weeks we continued to find a couple more pieces inside the house and some larger shards outside the house. There were also some areas where the spray foam was on the walls. Damage: We found a small chip in our bath tub, and on our floor. This wasn't a big deal since they were small and our finishes aren't new. We also found a puncture in our hose in the front yard. End Product: The end product was nice, but to this day not all the windows can lock without excessive force. We reached out to Jacek about this, but this now becomes a manufacturer warranty issue. read more

We hired California Window Masters to install replacement windows and a new patio door in our home. Initially the service was great. But for more than two months Jacek has failed to return and finish the job. On the day of the installation they showed up with screens missing and then during installation of a large kitchen window there were issues. They broke trim as well as left large gaps surrounding the window that were not sealed. He wanted to charge me $500 to come back and "fix" damage they created. I've been emailing and txting with Jacek for nearly two months. Truly disappointed. read more

California Window Masters - This is how they've left a window they installed for more than 2 months. Despite numerous texts & emails. - Windows Installation Near Me - San Jose, California

Before time delivery of high quality windows and installation at a very reasonable price.

If you are looking for high quality windows, great customer service, no pressure sales process, and quick installation, then look no further than California Window Masters! I recently purchased 21 Milgard windows and was very satisfied with my experience. Radek was a very knowledgeable down to earth salesman and was very responsive. I had gotten quotes for the exact same product from several other companies, and Cal Window Masters outbid all of them by thousands of dollars. Their installation crew clearly knew what they were doing and installed all of our windows in a day and a half. Great company! read more