We recently replaced all our windows and patio door, and Bestoff Windows did an excellent job. The…read moreentire project was completed in under two days, and everything--from the initial assessment to installation--was smooth and well organized. Sergey, the owner, is great to work with--very straightforward, no sales pressure, and no upselling. His crew was professional, efficient, and paid attention to detail. They came highly recommended by our neighbors, and they absolutely delivered. Highly recommend!

Extremely pleased with the project done for my house in Walnut creek this summer by Bestoff Windows…read more. Everything looks great and I'm saving money on PG&E bills with my new dual pane energy efficient Anlin windows . The best out of it is the sliding door with a built into the glass pet door for my dog to go in and out without bothering me all day long )))). My wife likes the most that outswing French door for our guest bathroom with the contemporary nickel hardware . Highly recommend,extremely competitive local business. The crew leaded by Alex is well oiled team-fast,professional,detailed and efficient work. Five stars no doubt. Also looking forward to get the federal tax credit for my new energy efficient windows installed with my tax returns in 2026. Thank you,guys.

Amazing service and great pricing. I would recommend to everyone looking for replacing their…read morewindows. The entire transaction and installation process was perfect, and I have zero complaints. Michal was fantastic -- he even followed up afterward with an email containing the link to register my windows. You can tell he genuinely cares about his clients and his service. I have no doubt that if I have any questions or concerns, I can email him and get a response right away.

Super helpful in pointing me in the right direction. Great customer service, even if it meant…read morelosing a customer.

I can't say enough good things about this company. From start to finish, everything was handled…read moreprofessionally and exactly as promised. Their pricing was fair and transparent--no surprises, no upselling, just honest numbers that made sense. What really stood out was their timeline. They showed up when they said they would, stayed on schedule, and completed the project right on time. That alone is rare these days. The installers were top-notch--respectful, clean, and clearly took pride in their work. They treated our property like it was their own, which made the whole experience stress-free. If you're looking for a company that delivers on price, timing, and professionalism, this is it. Highly recommend!

Look no further than Cal Coast Window and Doors. This is…read morethe best company for product , workmanship, contractors to owner. We had then install, side garage door, 2 windows and 2 sliders. After 4 years one of our sliders had closing issues. Cal Coast owner sent a crew to fix it, which meant completely reinstalled the window and now works perfectly Thank you Team Cal Coast

We had some broken windows and additional replacements needed at our company. East County Glass was…read morevery responsive, on site to provide a fair and reasonable quote and kept us informed of the complete process. The installation was quick and done well. Hoping to not have to, but we would definitely use them again!

The men from East County Glass came in, very respectable and they were on time as far as the…read morearrival time was given. They came got to work taking out my old shower, (the door was coming off the hinge), removed all the old parts. They measured to make sure that what they brought was correct, then they began installing my new shower, to my surprise, because I thought I was going to get the same type of shower, but they put in all glass, which makes it look a lot nicer. I am very pleased with the results and workma

Lema Windows and Doors did a great job on our family home…read more They were very responsive. Leszek communicated everything about the project clearly, answered all of our questions with great detail, and provided the best advice. We originally contacted them about a patio slider and they provided the best quote, focusing on quality and what we wanted, and service. We asked them for additional help with another project that we were doing ourselves. They helped us resolve the issues we had with a different leaking window and door. They caught several problems with the advice and plans we'd been given, which saved us from long-term issues, so we ended up expanding the scope from just the patio to a door and window with them. We got the look we wanted, the safety we wanted, and it was all installed so quickly and professionally. The stucco work looks perfect and was also done very professionally. We will definitely use them for any future work on the house. Highly recommend.

I had Lema Windows pull out a window to replace it with a door. The door is great quality. The…read moreprice was very reasonable and the work done exceptionally well in one day. Communication throughout the process was very good and no surprises anywhere. Will definitely have them come back when I change out my slider.

These guys are great. Super responsive reasonably priced.The window was replaced with in a few…read morehours of my first call.

I always have an amazing experience with Jimenez Glass! From start to finish, their service was…read moretop-notch. They responded quickly, showed up on time, and handled my window repair with professionalism and care. The quality of the work was excellent! You can tell they really take pride in what they do. What stood out most was their honesty and fair pricing. No hidden fees, no upselling just straightforward, reliable service. They also made sure everything was cleaned up perfectly before leaving, which I really appreciated. If you're looking for someone dependable, skilled, and efficient for window repairs, I highly recommend Jimenez Glass. I'll definitely be using them again in the future!

Outstanding experience! Requested a quote since several windows required replacement glass due to…read morebeing foggy/cloudy/seals failing. They were the second company I wanted a quote from. The first one never responded. In one week Concord Glass went from quote and on-site measurements to full replacement. Windows look outstanding! Took them less than an hour and you wouldn't have known they were here. Great communication and very easy to work with. Any glass needs going forward I will 100% use them. Thank you very much!

Julio did an amazing job adding shelved and mirror to our new home. Definitely would recommend for…read moreany glass needs. He is very courteous and experienced

We had all our windows replaced with Anlin Delmar dual pane windows from Custom Exteriors 14 years…read more(2012) ago. Never knew about life time warranty until last month, one of the window cracked. We didn't have any receipt or anything, just an email we did 14 years ago. We just contacted the company on their website and amazingly, they have the record by the address. The service department was so helpful, they contacted us and contacted the manufacturer to set up appointment with the case number to get it replaced. The windows were replaced 14 years ago in one day and we had many custom sized windows. The amazing thing is they know exactly which window that cracked by us describing the location of the window. Anlin Delmar (Milgard) called us and setup the appointment. They came and replaced the windows in a few hours. It was amazing and we're extremely happy. Now we know, go with the best and reputable company like Custom Exteriors and a good manufacturer like Anlin Delmar to have after service years after the work is done. Would we recommend Custom Exteriors and Anlin Delmar? The answer is obvious, YES.

ONE CORRECTION THE QUOTE TO INSTALL THE INDOOR TRIMS WAS 3 THOUSAND NOT 5 THOUSAND. For the rest…read morepictures do not lie. Kevin did call to follow up. He did offer to send someone to fix the mess his company left behind. Unfortunately, his crew left stained finger prints in the wood in addition to staining the windows in a totally different stain shade than the one I requested. As I have no confidence in his company's abilities, he offered to cover the cost. I DECLINED HIS OFFER. This company knew all along what was happening in my home. I sent pictures, I begged for a REASONABLE detailed quote, I was willing to pay extra for something that should have been included in my quote. NO RESPONSE NO RESOLUTION. Until this review this company did not care. I keep the 1 star review and my integrity as I cannot reconcile all the 5 stars with the horrific work and customer service I received.

Justin, first I want to say thank you for being so efficient and kind…read more I was very happy with your service fixing one of my broken shower doors and you are very reasonable in pricing compared to other post Covid pricing that was outrageous. I definitely recommend. Hands down. Thank you again.

Justin installed a custom glass shower door for my bathroom remodel. I had some concerns about the…read morewaterproofing the primary contractor had done on the shower curb, and Justin was able to figure out how to avoid drilling through the curb in the wettest area. The glass looked amazing, I'm glad we went with the Starfire clear glass. Most importantly - about a year after the install I noticed a little bit of water getting past some of the glass near the showerhead. Justin came back out and touched-up the silicone for no charge, and also replaced the wiper at the bottom which had a bit of friction. I highly recommend this company!

Great experience from the start to finish, I met with Alex and Leon, great price roughly $3k less…read morethen any other contractors I spoke with, they respond to my emails and phone calls/ text in a timely manner, I found Vladimir and his crew ( the installer) very efficient and really caring about my property. Thank you, 100% recommended.

This window subcontractor hired by Green Empire builders installed our windows incorrectly and…read morewe've had ongoing issues since installation. Workmanship was poor, communication was difficult, and the problems were not properly resolved. Based on our experience, I would not recommend this subcontractor.