We hired Sergey and Bestoff Windows to replace every single window in our home and couldn't be…read morehappier with how it went. They were noticeably more affordable than the other bids we got and there were no surprise charges along the way, which seems rare with home improvement projects. Everything was transparent and laid out up front. They showed up exactly when they said they would, and communication was excellent the entire time. Every question we had got a quick, clear answer, and we always knew what to expect next. Didn't have to call multiple times or send a bunch of emails. The new windows look fantastic the crew cleaned everything up after the install. No dust in the house or materials in the yard. We have recommended Bestoff to a few friends already. If you're looking for a window installer who's fairly priced, dependable, and respectful of your home, we'd recommend them without hesitation.

I highly recommend Bestoff Windows! From my very first consultation with Sergey, the owner, I felt…read morecompletely at ease. I had already met with quite a few window companies, and what stood out about Sergey was that he never gave me a sales pitch. He was knowledgeable, honest, and focused on providing useful information so I could make the right decision for my home. We even walked around my complex together to look at other windows, which I really appreciated. On installation day, the team was professional, courteous, and did a great job. I am very happy with my new windows and the finished result. What has impressed me most is the customer service and follow-through. When I recently noticed a minor issue with the caulking on one of the windows, I texted Sergey and he came by right away to take care of it. That kind of responsiveness is so appreciated and really speaks to how much he stands behind his work. The entire experience has been easy and stress-free, from consultation through installation and follow-up. I would absolutely recommend Bestoff Windows to anyone looking for quality windows and a contractor they can trust!

We used Royal Window and Door for our home closet door renovation in December 2023. We met the…read moreowner, Andrew, at their Concord showroom and explained the door design we were interested in. We ultimately chose Royal Window & Door because not only do they supply the doors, they'll paint, install, and dump your old doors. On install day, the crew was very friendly and completed install within a couple hours. I would recommend Royal Window & Door for your future project!

Our entire experience with Royal Window and door was fantastic. From the moment I walked in to…read moretalk to David about a last-minute project, to completion with excellent work done by Jamie... hands down 10/10. With David and Jamie's help we were able to make a lot of last-minute decisions and they installed three beautiful skylights for us. What stood out from the experience was the amount of detail and time David took to explain the options to me and they were able to expedite everything. We will use them for doors in the future. Great business!

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 did a great and prompt job installing our broken tempered glass. Super easy to work with and…read moreprovided a fair price, far better than most quotes I received.

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.

Great job. Michal was very responsible and professional. He even came twice to do the accurate…read moremeasurement before placing the order just in case any accident. The installation was also efficient and clean, nothing around got damaged. Finish was perfect. Everything was moving on as schedule, no back and forth, free of mind.

After a frustrating experience ordering a sliding door from Home Depot, I found Dolan's Lumber,…read moreWindows and Doors. From the start, their customer service was outstanding. They responded quickly to my inquiry and every follow up email I sent. Brian went above and beyond to help me, and even shared my situation with Milgard. He was also very knowledgeable and recommended upgrading the screen door for the slider since the standard one can feel a bit cheap, and suggested upgrading the glass to help with temperature regulation. He also gave me a quote for the exact door I originally ordered from Home Depot, in case I didn't want to upgrade anything. I really appreciated the time he spent helping me, especially since it was just one slider door. Excellent customer service. They definitely have my business going forward. Highly recommend!

We visited Dolan's at both the Walnut Creek and Concord locations on two separate occasions while…read moreshopping for doors and windows. In both instances, there were multiple employees working at the front desk area on their computers. While they may have been busy, no one acknowledged or greeted us when we walked in. Even a simple "Hi, we'll be with you shortly" would have gone a long way. My wife spent about 10 minutes browsing the showroom during one visit and we still were not approached. We ultimately left both times without speaking to anyone. We understand that some showrooms operate by appointment, and if that is the standard protocol, that is perfectly fine. However, a quick greeting, asking whether we had an appointment, or offering to schedule one would have created a very different experience. We did not have this issue at Golden State Lumber or Ashby Lumber, where we were promptly acknowledged and assisted. Unfortunately, based on our experience, we will be moving forward elsewhere.

Highly recommend Windows4U. I got bids from 2-3 different places and these folks were both the…read morefastest to the respond and the best price. They installed 3 new windows and a set of patio doors for my house. They were super responsive in every stage of the process. Emails were usually returned within an hour and always within the day. Their lead time estimate in getting the windows made was spot on. The quality of the windows feels good so far. I have a 100+ year old house with big old solid wood windows and I'll admit the new vinyl ones don't have the charm or look/feel of original wooden ones. But Windows4U also convinced me that replicating this old look would cost 4x as much. And its not their fault I chose the vinyl ones. They installed all the windows and door in one day and the team that was onsite worked HARD. Shout out to Mikhail and Vladimir who did a great job. They cleaned up everything so well it was hard to tell they were ever here.

I hired Windows4U to change my sliding patio door. They did a wonderful job, we're super happy with…read morethe results! The team did the whole thing in one day and were super nice. Price was great. Highly recommend!

West Coast Windows from start to finish, were excellent in every way! The initial estimate, the…read moreproducts, options, pricing, installation, hard working professional crew, cleanup, and communication, were ALL top notch! We love our new windows, and highly recommend them!

Fabulous! The entire crew, from owner, to office to installers were…read moreoutstanding. I would definitely recommend them to others and use them again in the future.

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.

JP and the rest of the team were very helpful in making the whole process easy for me. Just what I…read moreneeded. I had them install two sliding glass patio doors for me at different times during the last two years and each time I received the same great customer service. If you need new doors or windows, this is who you want to call!