Calvin was great! Very honest and knowledgable. Don't waste your time with office depot, staples or geek squad; just bring your computer to Calvin! He was able to restore all of my photos, documents, and music from an external hard drive onto my computer for a very reasonable price. Calvin is now my go to guy for anything computer related. read more

based on reviews from Yelp and Nextdoor I went to see Calvin. very straight forward, honest and easy to work with. highly recommended. fixed a power problems and reformatted a hard drive on my ASUS compact laptops and did a great job at fair prices. calling now to see if he can fix my Motorola cell phone screen. read more

Brought in 2 desktops to upgrade video cards. Customer service and technical advice was excellent. Service was done on time. Competitively priced. Would use their services again. read more

I was visiting a friend in San Mateo who sent me to see Calvin with the highest recommendations when my computer acted out. It turned out that I had pushed a wrong button...and rather than needing new hardware or a new keyboard, Calvin was kind enough to advise me that it was simply a technical mishap with no service required. He is both knowledgeable as well as a gracious gentleman...and will certainly have my business and enthusiastic referrals. Like everyone else who has commented here, I am inspired to find another tech with impeccable integrity. Run, don't walk to C & C Computer Systems! read more

I had brought in my 8 year old Sony Vaio desktop for some debugging and tuning and they did a great work! They cleaned up all my viruses and got it running back to normal speed. I also bought a wireless network upgrade which helped my computer download faster and it really shows. Thanks Calvin and Kevin. I will be heading here for all my computer issues from now on! A+++++ read more

I took my wife's laptop here. they checked it out and determined it would cost more to fix it then it was worth. Not only did they not try to get me to waste my money, I practically had to convince them to accept payment for diagnostics. read more

Calvin runs a terrific business! He has worked on computers belonging to my husband and me. He built my current PC and worked quickly, efficiently and with expert knowledge. He charged a most reasonable price and ensures the quality of his work. He greets me by name with a friendly smile and manner, a truly great asset. It is a pleasure to do business with C & C Computer Systems. You won't be disappointed here! read more

calvin and his assistant andy were great help. renovated a 2004 PC system unit for greater speed and virus protection ... and .... the same for an HP laptop with all sorts of crud and obstruction inside. on time, fair prices, great results. read more

Terrible Service absolutely incredible! I brought my laptop in because my computer had issues booting up. 05/07/11 When I brought in my laptop I met a guy who quickly diagnosed the problem as being a hard drive failure. He then told me he would take a look at the laptop TODAY and CALL ME BACK for the estimated cost. No call... (saturday) The first time is forgivable. I gave them a few days then called them back on Wednesday to check up on the status of my computer. The guy who answered the phone said he'd take a look at the computer TODAY (wed) and CALL ME BACK on estimated cost. (Hey I'm just looking for an estimate guys) No call... (wednesday) I called them back on Thursday and again got the same response "We'll call you back" No call... (thursday) Being fed up at this point I decided to take my laptop back on Friday so I showed up and took my laptop.. I don't believe it should take this long just to come up with an estimate for a hard drive failure and data recovery pricing. So I showed up and took my laptop on Friday but here's the KICKER... they said they looked at my computer and could not retrieve my data back. Saturday I decided to do some research on retrieving data from a dead hard drive. I was able within 15 - 20 minutes of googling use a system recovery disk, go to the command prompt and copy *all* my data on my dead hard drive to a back up hard disk. (And I know NOTHING about fixing computers until now) What I plan to do now is buy a new hard drive and install windows 7 and fix everything myself. At this point I figure I can probably get things done faster and a lot more cheaper than these "professionals" can. It's not the fact that they took soooo long that bothered me. If they were upfront and honest that they were really busy and it might take a week or two to get back to me that is *totally fine*. What IRKS me the most is that these guys told me explicitly they would: 1. Start looking at the computer TODAY 2. Call me back (which they never did in any of the three attempts when I called them) 3. Tell me that they could not retrieve data from my hard drive when (I being a newbie was able to do this very easily) So why is this important and what does this mean for you as a customer. 1. They are dishonest and do not care about their customers. Just imagine going out on a date with your favorite celebrity. Would you tell them you'd call them back and never do? If that's the way they treat you as a customer do you think they are going to give as much care and quality in fixing your computer? I wonder how many customers got overcharged for something that maybe takes about 10 - 20 minutes to fix? 2. If I wasn't totally suspicious about them already due my conclusion I made above I would have thought that my hard drive and all my precious pictures and data on it were completely lost and would have to pay $$$$ to retrieve them from a professional data recovery services company. Either that or I would have wallowed in hopelessness and tossed my hard drive away losing many years of pictures. Well it looks like the "experts" were wrong and I was able to back up *all* my data from my bad hard drive easily and for FREE. read more

I took my computer in when it wouldn't start. As expected it was a bad power supply. They fixed it in a couple hours and charged me $85 which I think is pretty reasonable. The only reason I'm not giving them 5 stars is because I asked the person to tell me what hard drive I needed to replace one of the drives in my raid 1 array. He forgot to take a look so I wasn't able to buy the drive. read more

I should of gone here years ago! It would take me 15 min. to turn on my old computer. Then the DVD drive burned out. Finally my Youtube would not play. I found this place with Yelp. Calvin told me to keep it and he can repair it. Wow, it's like new again. Why did I not do this years ago I don't know. read more

DO NOT PATRON THIS PLACE. CALVIN IS HIGHLY UNETHICAL. HE CHARGED ME 65.00 for a SURGE ERROR FIX BUT WHEN I CHECKED HE NEVER FIXED ANYTHING AS PROMISED. HE HAD DISABLED THE ERROR VIA THE BACKEND. UPON DISCOVERING THIS I WENT BACK AND HE WAS BUSTED AND HAD THE NERVE TO ASK CAN HE NOW FIX IT FOR A FEW MORE DAYS. Fxxx OFF CALVIN! YOU SHOULD BE REPORTED TO THE CONSUMER BUREAU. I GOT MY 65.00 dollars back from him and that IS UNDERHANDED AND STEALING!!!!! GO TO Clickaway.com downtown san mateo. They are Ethical! read more

I cannot say enough positive things about this place. I cracked my MacBook Air screen and knew it was going to be a hefty price tag to fix. I went around San Mateo and Millbrae area to obtain estimates and these guys were great with their customer service and responsiveness. While other places were complaining how "complicated" the labor could be and that it would take long to ship the replacement, C&C was so efficient with their process. They took down my Mac's serial number and within 15 minutes, they called me back with their very reasonable estimate (others were providing me an estimate of well over $500 dollars). Not only that, C&C mentioned they can complete the replacement within 24-48 hours of me dropping it off. Talk about amazing and speedy service! When I inspected my laptop, it looked completely brand new. C&C takes care of their customers and I would recommend this place for any of your computer needs. read more

I received the most excellent honest service from Calvin. I want him back ! A certain letter was spacing when printing. He fixed right away and cleaned up my picassa. read more

I never write reviews but felt compelled to write given how great it was working with Calvin. Calvin accepted my broken office computer at the very end of the day on Friday and spent untold hours working to get it running. He did so and not only fixed what I had broken but also did it in record time AND charged me an EXTREMELY reasonable fee for all his work. Do not believe any of the negative reviews on this site. Clearly they are written by people who are out to only cause harm and do not have any intention of leaving a real and accurate review. Calvin is great and my company will use him for all our computer hardware issues in the future. Thank you very much Calvin. read more

Once again, Calvin to the rescue and once again, the price was more than fair! Aside from really knowing his stuff, he's got to be the most reliable, honest, and reasonably priced computer repair professional in the Peninsula! My laptop went on the blink again, this time it was not charging. I got a hold of him right away, brought the laptop in, and it took him less than an hour to figure out what was wrong. His new place is a little hard to find so you may want to call ahead for directions. Thanks, Calvin! read more

Update: I went in there yesterday because my other laptop stopped connecting to the Internet through WiFi and through the Ethernet cable. I have been on chat and phone support with the computer manufacturer for two days prior. They couldn't do anything. I brought it back to Calvin. He was able to connect to the Internet, no problem. I haven't had a problem since. Thanks again, Calvin! read more

Calvin at C & C Computer Systems is fantastic. I'm so glad that I found him (through Yelp!). Service is superior, very timely and super professional. I highly recommend his services ... he knows his stuff. Easy access with easy parking. Super fantastic! I am so happy! read more

Our desktop had died and we called Calvin after finding this place on Yelp. We called at closing time but he told me to come by anyway. Calvin was able to troubleshoot the problem on the spot (power supply issue) and then stayed after to not only fix the problem but also to answer additional questions I had. I wanted to also buy some extra RAM for my desktop (which would have been more business for him) but he took a look at my computer and said that the extra RAM would not have helped me given that my PC was already maxed out given the specs of my PC and the OS I was running. Honest guy. I had a great experience and would go back in a heartbeat! read more

Needed to have the LCD replaced on a Lenovo laptop, which is pretty much the one part I would not try to replace on my own. Dropped it at the store and it was ready within a couple of hours, for a very reasonable price. Great service and highly recommended. read more

We've been going to Calvin for our computer service needs for several years now. If you read the review earlier, I have since changed it, as I learned from Calvin that he's been very busy working visiting customers on sight. So, with that in mind, I would just advise setting expectations about the urgency of the service/repair needs. I will certainly consider calling on him before seeking any other computer IT service company. read more

Calvin is a true find!! I called him early in the morning as I was having a software issue and he diagnosed the problem and had my laptop done in 4 hours! His customer service is great and he offered lots of good tips. He is honest and professional. I will definately use his services again for sure! read more

Calvin is knowledgeable and friendly. Service is exceptional, timely, and personal. Two service encounters, both five start experiences. Came to him with a fried hard drive, he saved our data and restored the machine at minimal cost. Highly recommended. read more

Calvin is amazing! My hard drive crashed much to my dismay. C&C recovered all of my old files (from the damaged drive) and restored my system (files and programs) all within 1 working day. And for an extremely reasonable fee. Now I'm back up and running and the world is a much better place. Thanks C&C! read more

I dropped off two laptops a couple of months ago and then fell out of contact with Calvin due to a personal emergency. Not only did he repair both computers perfectly, he gave me a great price and was really nice about my going AWOL for awhile. I wouldn't go anywhere else for computer repairs, Calvin is definitely worth the drive. read more

Went in with a laptop with a flakey power connection. He quoted it as replacing a bad plug, but after checking it out, found it was only a bad external power supply. Quick and easy fix, took a few extra days due to not having the right one in stock, but beats the high cost of the other problem. read more

I can't say enough great things about this place! I panicked yesterday morning when my 6 year-old Sony Vaio laptop would not boot, and I hadn't backed up any of my data in over a week. I immediately took it to Calvin who had done a great job repairing my husband's laptop a month ago after it got water damage. It turned out that my hard drive was kaput, but they were able to save all my data and offered me the option of putting a new hard drive in for a very reasonable price. I opted instead to purchase a new laptop since I was previously having all sorts of other problems with my Vaio, and wanted a faster processor, etc. From there I worked with Terence who transferred all of my data from my old laptop to the new one in a matter of a few hours! And, the price they charged was beyond reasonable. Best service I've ever had...and everyone was so knowledgeable and nice to work with. I HIGHLY recommend this place for any computer problems you may have. Thank you C & C for saving my data and making my day!!!!! read more

After reading the reviews I decided to bring in my 5 year old Dell Desktop that was taking a long time to boot up and internet surfing over the cable connection was extremely slow. Calvin cured the computer and now runs like a Ferrari versus me having to consider getting a new desktop. He also installed a free program that will keep my temporary files from slowing my computer down when I surf the internet. Great job and totally satisfied! Thanks. read more

These guys did a great job on my Mac Book Pro. I had to replace the super drive, front bezel, and back of LCD. When I dropped my laptop off it was a hoopty. Picked it up a short time later and it is like new again. The price was great as well. read more

Reasonable price, fast repair process and friendly customer service~ We are very satisfied with C&C.

I'm writing this review thanks to C&C, specifically Calvin. Yay, Calvin. Fixed 2 laptops, 2 printers in less than an hour (the best investment you will make). Quick, intelligent, quiet, knowledgeable. And fixed 2 laptops, 2 printers, in less than an hour. This gentleman is our new go-to for both PC and Mac read more

C&C Computer systems is an excellent choice in San Mateo for computer repair. I took my computer in on a Monday and had it back the next day. They knew right away what the problem was and were able to save my 2009 H-P computer. Calvin and his staff are courteous and smart. The price of repair was very reasonable. Highly recommend them read more

i think this guy knows nothing but changing motherboard (which will cost you $400). i took my laptop to this guy around 6 months ago for jack problem and he said we have to change motherboard but even tough he change the motherboard 3 time my computer was having the same problem.2 weeks ago i took computer to one guy in mountain view and he only repair the jack which only took 1 day ( by the way from calvin it took 1.5 months to give computer back) and $100 to fix my computer working extremely fine now and as per calvin i visited him this morning maybe he can pay me half of the money but he has been very nasty and told me he cannot do nothing as he did to my computer and charged $400 thank you calvin not fixing my computer and stealing my money read more

So happy I found C & C Computer Systems! Calvin was able to recover all my data after my hard drive crashed. He installed a new one and I was on my way a couple of days later. His repair service is so much more reasonsable too than some big chain, repair squad. read more

Calvin and C & C Computer Systems were a wonderful find. Thanks to all the great Yelp reviews, I confidently took my wife 's computer in for Calvin to fix. I normally handle all the computer-related problems in our house, but I was stumped and needed the help of a real pro. Calvin took care of the problem in just a few hours. The service I received was excellent and the cost was very reasonable. I would highly recommend Calvin and C & C to anyone needing computer service. read more

Calvin is great. We've been taking our computers to him for a few years and I would recommend him to anyone. He is very quick with the repairs and always charges a reasonable price. read more

I took my desktop system in to C & C on a Friday and got a call back within hours with a preliminary evaluation and estimate. They set my expectations realistically and I had little hope for recovering all of my data. To my surprise when they called me back they were able to recover all of my data. They replaced my hard drive and recovered all of my data. Great job and resonably priced. read more

We have used this business 3 times for peronal and work computer repairs. They are very polite and service is fairly fast. On the most recent repair issue, they let us know that the hard drive was under warranty, instead of just charging us for a new one. Nice people and they do a good job, highly recommended! read more

5 star rating for Calvin and C&C computer systems. I also found them from the Yelp reviews, and glad I did. Got a virus that would even let me boot up in safe mode. Dead in the water and praying my data could be saved. Of course happened Friday night. Brought my computer to Calvin Sat. morning. He even took it home with him over the weekend to work on it (!) and was ready Monday morning. All data saved and virus gone! No need to even reload everything on my computer. And he left me with a few apps to help clean it in the future. Hip hip hooray for C&C! read more

C & C computer does a great job on PC's that are not networked but, keep them away from your server!