Have been taking my computers to Jack for over 20 years, I trust no one else. He has consistently…read morebeen able to quickly diagnose a problem, fix it quicker and less expensive than anyone else I have tried. Having referred dozens of people to Jack and his company all have called to express their thanks and to rave about what an professional Jack is. Truly an exceptional computer expert repair specialist and an amazing custom build and graphics technician. His work with builds and graphics computer technology is unsurpassed by larger much more expensive firms. This is the computer shop you should go to first, always!!

I had an excellent experience with JL computer service. The customer service was truly high…read morequality--friendly, professional, and patient in explaining everything clearly. I really appreciated how responsive and honest they were throughout the process. Jack (the owner) went ABOVE and BEYOND. He came in when the office was CLOSED to work on my laptop in order to meet my timetable. I wouldn't hesitate to recommend them to anyone looking for reliable, top-notch computer repair.

Adrian was professional and knowledgeable about computer services. He explained every issue in…read moredetail, was very transparent, and fixed my laptop quickly. I recommend AZ Computer Services in Gaithersburg to everyone

I shorted my laptop when I was changing my battery. Then I asked this company for a diagnostics and…read morerepair. On the call he made a verbal promise that the job would only cost $50. Once there, he made me sign a document without notifying that the diagnostics fee has jumped from $50 to $250. I did not caught on this immediately since he requested credit card information during the call before coming and so he charge the card once the "agreement" is signed. He defended the charge by stating that the agreement is signed by me and is recorded on the CCTV. However, not notifying the customers that the fee has increased by $200 only after they sign the form is extremely scummy and dishonest.

David Altar is an excellent tech support person. We've had him update firmware, replace batteries,…read moreand even purchase a new laptop for us when our old one died. He's prompt, very reasonably priced, and very knowledgeable.

Wow. 5 stars plus. I emailed him on a Friday night. I told him what the problem seemed to be…read more He knew the cause. He ordered the part and came to my home in Gaithersburg and replaced the part on Monday afternoon. Very reasonable cost. David - MoCo Tech Support will get all my local referrals in the future!

I am not one to often write a review, but I am so impressed not only with the timely, quality…read morework, but also, with the quality of the man. Mr. Elman, is as kind and fair, as he is courteous and professional. He went above and beyond just reparing my PC and I will be forever greatful.

Elman came through for me again, and he went the extra mile to do the work in a way that will…read moreprevent future problems. One of my 20' XLR microphone cables failed while I was doing a remote recording session...scratches and crackling from a short circuit. I brought the cable to Elman for repair. He found the problem and fixed it. The "extra mile" was his applying heat shrink to the soldered leads which has two benefits: - stabilizes the leads against strain, and, should they get pulled again, prevents them from touching and should prevent electrical short circuiting. This attention to detail is all too unusual in today's marketplace. Kudos to Elman.

Ari was exactly who i needed from my small business. He set up my new laptops, installed software…read moreand anti virus. He was very efficient, he came to my office ready to work. His price was very competitive. He also has provided remote service reducing his travel time and my company's downtime. Ari is a very valuable resource and i will continue to hire him as my IT set up expands. Highly recommended. Do call him!

I brought my laptop in to have the battery changed and to check for any viruses. The response was…read moregood. Two months later my laptop was hacked and Ari said he couldn't help me because I lived too far away. My bank account has been hacked so this is a serious matter that needs to be resolved.

I dropped my iPhone 7 while at work, I then picked it up to find it cracked even when it was in a…read morecase. I hate walking around with a cracked phone, so i googled iphone repair shops and called several shops to tell me it will cost $500 to fix it. I was furious!! Ubreakifix quoted me $520, U-Mobile said $459, Apple wanted a $200 deductible plus price to fix the screen. I went on craigslist to find this business ad for phone repair. I am skeptical to use craigslist as it is a lot of scammers on there. The person who picked up sounded professional, and quoted me a price I couldn't believe o_0 $295. Hell That sounds amazing to hear $100 cheaper than the competition. I support small businesses that aren't after the buck.. I went to the shop, it was clean and bright. I dropped it off and it was ready in 2 hours. They also offered free screen protector because I mentioned a code that the person told me when I called the 746 number. Screen is flawless, and phone still looks good 2 weeks later. Thanks for your service and I'm glad I found you amongst all the sharks in the sea lol.

Found these guys on craigslist after a computer I bought online had an internal fan going haywire…read more They were very friendly, picked up and dropped off the machine to me at my house after repairing it, and the price was less than what Best Buy's Geek Squad wanted to charge me. It took a little while to get the machine back but I think it was mostly due to a delay on parts. I'd use them again if my computer's on the fritz.

Potomac Computer was our first choice, based upon Yelp reviews, to fix our old HP desktop which…read morerefused to start. We needed it back ASAP to process our spreadsheets, but were crestfallen when we were told, "Our shop is backed up for a month." What kind of computer repair shop maintains those kinds of delays? The owner was kind enough to recommend another nearby shop, which we had previously used and did not care for. So we went elsewhere.

Potomac Computer Services has been my go-to service for 20+ years. Stewart has extraordinary…read moreknowledge/skills, a strong work ethic, and the kind patience to deal with clients with minimal tech savvy - like me. In addition, he is completely trustworthy with the sensitive material in computer files. The mark of a true professional, Stewart clearly cares about helping you succeed in solving your issues and meeting your needs. He is also a pleasure to work with. The best!

I can't say too many amazing things about this business. Alex is a godsend and saved me from losing…read moremy phone number. Xfinity Mobile screwed me over for a month with assorted shenanigans and incompetence. So much incompetence that they accidentally canceled my phone number which they told me could not be recovered. I had this phone number since college and wasn't interested in giving it up. Came over to Xfinity from AT&T and experienced nothing but horrible service. I didn't ask to be put on a prepaid service (called NOW MOBILE) and they signed me up on one over the phone on January 15th and told me they couldn't get me off for SIX MONTHS. All I got were apologies and ineffective attempts to correct the situation. Apparently NOW MOBILE doesn't support something called an "MDM feature function" was allows them to retrieve a phone number after it was canceled. THEY suggested I cancel it from NOW MOBILE to reboard it onto Xfinity's mainline service. I guess the rep that signed me up the night of 1/15 was looking for an incentive pat on the back from management or maybe didn't know what he was doing exactly - who knows, but he set the wheels in motion the ultimately led to tons of wasted time and a canceled phone number. NOW MOBILE doesn't offer live phone support, so you end up on virtual text communication with people overseas.... China, India Pakistan, Philippines, etc. Extremely slow, repetitive, communication challenges. They should call the service "NO MOBILE" because it was awful. Anyway.... I was completely despondent/lost Thursday and had given up hope until my brother suggested that I go see Alex. He's super skilled and super knowledgeable and most importantly super enthusiastic. We were successful in porting an otherwise dead phone number over from Xfinity to SIMPLE Mobile (a service he sells) and I'm back online. The prices were even less expensive - which was the reason why I stuck with Xfinity and continued to take the poor service I was getting from them. The service didn't port over immediately and I was so worn out by all of this that I told Alex to just get me a new phone number. The status was stuck in "in process" which I thought was because my old phone number really technically was no longer available (according to Xfinity). Alex encouraged me to stay positive since it could happen anywhere from 10 minutes to 24 hours. Lo and behold - 7 hours later I got the good news. The order was completed!!!!! I could restart my phone. He made my day! I can't recommend this guy enough.

Once again, tech is a new and used tech shop that can service or repair your phone, computer tablet…read moreor device while also providing used and new phones for a lower cost and you can find anywhere else on the market. The owner is Amazing and very helpful!