James and Trent were very professional and very detailed and patient explaining and giving me…read moreoptions! Even found a little defect the next day on glass and no hassle came back and replaced glass! Prices very fair! Thank you guys!

A lone mighty pine cone broke through my kitchen garden window during the recent winter storm right…read moreafter Christmas where so many businesses were closed. I've contacted a few companies to see if they were available. Some of them contacted me but they never followed up. All except for James from South City Shower Door & Window. Not only James contacted me but offered to give me an estimate right away. Very professional and courteous. I hope to always contact James again for my projects again.

I remodeled my house in 2009 and had Marvin Windows installed at the back of the house, however I…read moredid not replace the windows in the front of the house as they were newer. In 2025, we decided to replace all the windows and the front door in the front of the house and wanted Marvin windows to match the front of the house. There are many window replacement companies out there that will build and install windows for you. However, we specifically wanted Marvin windows and we wanted to upgrade to the higher end Marvin windows as we had installed them in the back. Mark (the estimator) was very responsive and came out to measure and give us an estimate. We signed the contract and he said that we could expect installation in 3 months. Well, 3 months came and went and it seems our custom made windows from Marvin had some manufacturing issue and were delayed. Ok, so instead of a September installation, we were now we are expecting a December installation. It wasn't a big deal except that I had to restore my living room for Thanksgiving. This delay wasn't Window replacement Center issue, it was an issue with the Marvin manufacturing process. So, why am I giving a 5 star review. The installation was great. Oleg (sp?) was the lead installer and he did a wonderful job. My husband (a real DYI person and a perfectionist) even said that the workmanship was perfect. See attached pictures. They were here multiple days and left the rooms cleaner than when they started. Not a speck of dirt or dust was left. So, they only do new window replacement/installation. Meaning if you want a window where a wall exist, they don't do that. They don't fix existing windows (broken glass, old hardware). Mark did walk my husband through how to get a replacement part on another window were the hardware was rusted. They also don't do painting. You need to either paint it yourself on the inside or hire a painter to do this. Also, most of the installers speak very little English. We didn't find that to be an issue. If I had a question that they couldn't answer, they called Mark right away and we were able to work it out. The installers all came on time and there was even a day that I said they had to be done by 5 as we had a dinner engagement and they left when I wanted. Overall, this was a really good experience and I would hire them again to install any windows.

Great price, fast service. They took the time to make sure our new windows were up to fire code.read more

We recently had eight windows and a sliding door installed by Cal Coast Window and Door, and the…read moreentire experience was outstanding from start to finish. Chris did an excellent job guiding the project and making sure everything went smoothly throughout the process. The installation crew (Manny and Omar) were absolutely amazing, professional, efficient, detail-oriented, and incredibly clean. They worked hard, respected our home, and left everything spotless when the job was complete. If you're looking for a company that provides great communication, quality workmanship, and exceptional customer service, I highly recommend Cal Coast Window and Door.

We wanted to replace all our original 1960s-era single-pane windows with double-pane windows. We…read morealso wanted a storm door for our front door. We got an estimate from Andersen (less the storm door). Their products and installation method were top-notch, but so was their estimated price! So we wanted something more economical. After some research we heard Milgard windows using an "retrofit" installation would be more in our price range. We also wanted a window/door-installation company that gave us a good price estimate (1/3 the cost of Andersen), was in our locale (Tri-Valley) , and had 5-star rating already. So we were happy to find Cal Coast that met those criteria. The initial estimate process was straightforward. Our estimator was friendly and efficient. The format of the estimate came in digital PDF format. It was easy to print, and the details and layout were very helpful with diagrams of what the windows and door would look like with dimensions. One measurement for one window was slightly off. I mentioned that to my estimator. He assured me that was not a problem because if I accepted their estimate, then the next step was for another technician would come out to the house to re-measure the windows more accurately and in more detail. We did accept the estimate, and indeed another technician came out to do detailed measurements. Then we received a revised and more detailed contract in that same great layout! The estimator kindly set our expectations that our windows and door were going to take 5-6 weeks to custom manufacture and about 1 to 2 days to install. Those timings were right on target, which helped us in planning other events in our life. Installation only took 1 day! The crew was great - courteous, hard working, and efficient. They put foam insulation in the space between our window frames and the new windows. The caulking work was professional. I was pleased. And the crew cleaned up after themselves perfectly. Another thing I was pleased with was Cal Coast's production manager helped me apply and get my city building permit for the new windows. The day of installation, the foreman handed me a nice folder with the printed permit with other instructions. I really appreciated that. Also after installation she worked with my city building department to schedule a final inspection by a city inspector. When the inspector came out, because the product and installation were superb, it passed with no problem. Of course, I paid a little more to have this permit processing service, but it was well worth it. Finally, as you can tell from this rather long review, I'm very pleased with our experience with Cal Coast and the Milgard products. I add my 5-star review to others that have gone before me for Cal Coast!

It's expensive to replace windows and I had reasons not to go back to three companies that I used…read morein the past 40 years. So I Yelped and requested quotes from four companies. Alexander was one of them which my neighbor recently hired to replace her windows. I met four window estimators and Alex from Alexander came across as honest, direct and trustworthy. No sales gimmicks, no rebates, and no pressure. And it turned out Alex gave me the best price. I also liked the fact that they came back without charge and fixed a frame problem that my neighbor was having with her new windows. Four months later, Rosy called to schedule an installation date for my new windows. Two days later, Jose, Carlos and two other crew showed up in two trucks on time to start the installation. The installation team worked seamlessly as a team, they first carefully covered the floor and surrounding to protect my floor and furniture. Then they went to work. From demolition, installation, to clean up, it took less than a day for six windows. They were friendly, efficient, skillful, knowledgeable and professional. Today, I look at my new Marvin windows and I couldn't be happier! Thank you, Alexander company and the entire team that work on this project! I appreciated it!

We've executed three separate projects with Alexander Company over the past year--including a…read morecomplex multi-window setup requiring scaffolding and a sliding glass door installation--and the work has been consistently solid. Trust me, I've had a lot of contractors go through our home in the past year for all sorts of other projects, and these guys were by far the easiest to work with. I hate micromanaging projects because I genuinely don't want to do it, but when service sucks--which happens from time to time--you're forced into it. That was definitely not the case with Alexander. On-site execution is completely turnkey, with permits, heavy installations, and site logistics handled with zero friction. In fact, their turnaround time for handling things like emergency permits was completely on point, which turned out to be quite a funny story when all was said and done. The entire team is straightforward and professional across every touchpoint. Props to Walter on the initial scoping and estimates, Rosie and Maryanne on coordination and scheduling, and Jared's crew on the actual install work and fine attention to detail. Their pricing is competitive without any performance trade-offs. We still have a remaining set of older windows to update down the road, and Alexander Company will easily be our go-to when we're ready to clear those out. Highly recommend if you want the project done right without having to step in.

I worked with Armando during the quoting process and he was awesome! He went above and beyond by…read morecleaning up the broken glass and ensuring that the measurements taken were accurate. He answered any questions I had and made sure we were all set before the installation. Would definitely recommend J's and Armando to others!

The team did an incredible job replacing the glass of my vending machine quickly and at a…read morereasonable cost. They were also very flexible getting it done within my availability and the mall's available hours. I would absolutely recommend for any glass needs.

Called Golden State because of all the good reviews and am I ever glad I did…read more When I called, Gary picked up the phone and was at my house to have a look at the window I needed replaced that afternoon! Measurements were taken and it seemed like no time at all before we had a new gorgeous window. Gary called us with updates while the window was being custom made and with info on the installers and the installation was a breeze. I will definitely use Golden State again in the future!

Gary was a pleasure to work with. Extremely educated in the industry and put me at ease with all my…read morequestions and concerns. Absolutely love the quality of both the Marvin and Anlin windows. Thank you again Gary!!

I like fixing things in my house myself when I can, but when two of my original Victorian…read moredouble-hung windows from 1900 broke, I watched exactly one YouTube video and knew I needed a professional to resolve the issue for fear of making mistakes. Their rate was very reasonable and they were able to come quickly (a godsend with the various heatwaves we've had recently) and fixed the sash ropes so the windows now work well and you wouldn't even know they were once broken. Eventually I may want to install new windows (that match the previous style) in my bedroom due to noise disturbances from outside, and I won't hesitate to reach out to Gilberto Arellano Windows to assist with that project as well.

Professional. Craftsmen. Ethical. Efficient. Dedicated. Responsive…read more Gilberto Arellano Windows are all this and more. We needed to replace failed double-pane bay windows in our 1911 Edwardian and after 3 disappointing bids (confusing, un-professional, late) I called Gilberto Arellano. Best call ever! Gilberto came to our house, measured, presented a bid on the same day, and met every possible hope and expectation. He was helpful negotiating our vision of colored glass, tempered glass and design elements. On the day of installation, three professional craftsmen arrived and six hours later, after focused shaving and fitting, our three double-hung windows work to perfection. Gilberto Arellano and his team of craftsmen know precisely the art of wood windows in San Francisco. Dream project!

Gary was so helpful and thorough from the beginning to the end. We love our windows. Good quality…read moreand great service and I would definitely recommend them.

5: Customer service 5: Pricing, amazing value…read more5: speed, very prompt, the windows even showed up sooner than estimated We were looking for new double pane windows and we ended up with the Catalina series . It took 6 weeks for the manufacturer to build (but came a week and half early). Installation was one day Gary our sales rep always answers his phone and texts at almost any hour! We couldn't be happier with the end product. a++++