Expert Reaction Computer Services

I must say, it was worth the drive. I have an 8+ year old laptop. I know that I had some kinda virus on my computer… but have been living with it for about a year now. I know I need to upgrade my laptop, but quite frankly didn’t have the time or the funds. El Nino changed my time frame. The last storm happened to create a small leak my home office. Of course, the leak happened to be right over my opened laptop! So, once I discovered what happened… I did what you are not supposed to do… I turned on my computer! Well, as luck would have it, my computer turned on! BUT, the keyboard did not work. I let it dry out a week hoping things would miraculously fix themselves, but no such luck. Since the cost of replacing the keyboard was more than the laptop was worth, the wonderful and patient computer guru at Expert Reaction was able to save my data and put it on a thumb drive at a reasonable cost.

Took my computer in and found out the hard drive had crashed. Everything went well. They recovered my files and the turn around to get my computer back was fast

I brought my computer in since it would not start. Marcus was great, started it up and had it fixed rather quickly. I was very impressed that all mr data were saved, and with the quality of the work. Highly recommend this place, which was half the price of Staples.

My family opened our business about a year ago and we needed a lot of work done to set up a network and all our computers. Sam did a great job with all that. There might be places that charge less, but one of the most important things we’ve learned is that you really do get what you pay for. If you want quality work and reliable service, Sam is your guy.

We brought our laptop in recently for repair, we were very impressed with how accommodating they were to our limited schedule, how responsive they were to phone calls and task at hand. the entire experience was delightful and charges were very reasonable as well. Marcus, you rock!

Fuck this over priced company, they wanted to charge me a fortune to fix my laptop and down the street I found some to help me out cheap down the street!

We opened a business over a year ago, and I went through countless reviews for different computer and IT service companies, and I decided on Expert Reaction. I have not regretted that decision at all! From day one of opening up, Sam and Marcus have been beyond helpful and they’ve truly been lifesavers. They helped with networking all our computers, setting up the server, and allowing us to run our management software on our workstations. But they help explain things in a very clear way and make sure you know what you are investing in. Even this morning, an hour before opening our doors, we had a slight issue (something that my husband installed was not meshing well with all the computers and the server). Sam to the rescue! He came before our doors opened and got us up and running within minutes. Who else in the area can do this? The service is so personalized and both Sam and Marcus are super friendly, trustworthy, knowledgeable, efficient, and all around amazing people. I work with vendors and different companies to make our own business run. But these are definitely some of my favorite people to work with. They are amazing at diagnosing and solving problems and I feel like they can handle any type of computer problem or IT challenge. If you want your life to be easier and don’t understand computers/​IT, then these are the people who are going to help you do just that. Thanks guys!

This was a great experience. I knew there had to be something in Covina to help me. I found this location on Unilocal and gave it a try. The gentleman called me back when he said he would and charged me a great price. Took the time to answer my questions and demonstrated he was knowledgeable with my problem.

Excellent Service!!! Recommend, Recommend, Recommend!!! I have a 2009 iMac that had started getting slower and slower. The spinning beachball was killing me! I dreaded the idea of taking my machine to an Apple store. I’m sure they would have told me it was time for a new machine -$Cha-​Ching$. Unilocal to the rescue! Yesterday I brought my machine in, Marcus was able to do a quick diagnostic (more memory, better hard drive). Today I picked it up and its back to being fast. The prices were reasonable too. Since there are only 2 guys in the shop and sometimes they are out with other clients you have to call to make an appointment when bringing in your machine and picking it up. I will be a return client if and when the time comes.

We just had Marcus from Expert Reaction come out to fix many varies computer problems we had at our medical clinic. He was AWESOME! He was very nice and took the time to explain everything to us. We will definitely be using him again!!! :)

Sam was so good to me, he did exactly what I asked, (transferring pictures from old broken computer to hard drive) and could answer every question I threw him. He was very helpful, fast, and professional. THANK YOU

Awesome place highly recommend!!! they have the best service!!! had laptop running slow, having alot of problems not opening files gave it to them had it back with in the next day. I would recommend them to anyone! they take your device but you would have to take it early in the morning but it’s usually by appointment
talk to marcus!

I rarely give reviews but damn this place deserves it. I wanted to transfer all my hardware from one tower to a new tower and have all the cables to be nice and neat (cable management they call it). Well I went to geek squad first and they wanted $ 50 PER PART. move the graphics card $ 50, move the ram $ 50. etc… they were insane. Then I went to another cpu place in West Covina, they wanted $ 200. After that I called the place where I got my CPU (IBuypower in El Monte) and they wanted $ 250… FINALLY I called expert reaction $ 89! and they were Extremely Helpful! I dropped both towers off. they were done 4 hours later. the inside of my CPU LOOKS BEAUTIFUL! and runs wonderful!
Thank you again Sam!

Hands down the best PC service, They know their stuff. I use these guys to help out remote Customers of mine. Dependable and very affordable.

Took in my older PC and was able to sell it for a profit due to it being fixed.
Bought a new high end pc and they were able to build it at a reasonable price.
Will go back to them in a heart beat.

Marcus identified the problem (video card) and repaired it on the same day at a reasonable price. I am very pleased with the expert service I received and will definitely return, along with the five star recommendations I make to friends and family.

Clumsy me, somehow managed to break the screen on my Samsung laptop :(I shopped around for a new laptop, and realized that wasn’t an option. Figured Best Buy could fix the screen, but for the quoted price, I might as well buy a new laptop.
Finally came across this Gem on Unilocal– glad I did. They quoted me a MUCH lower and reasonable price than Best Buy, took my laptop in on Monday and it was ready for pick up on Friday. Laptop works great, screen looks new (well it is new ha).
The guys are definitely friendly, honest, and worked magic on my laptop-​Highly recommend this place!

I was having a problem with the charger on my laptop. I thought it was the connector on the charger and bought a new one. Turns out it was the jack in the laptop. After checking Unilocal!I decided to call Expert Reaction. I made an appointment to drop off my computer. Easy to find location on Grand with lots of parking. Marcus was friendly and took a look at the problem and verified that it was the power jack, The next afternoon he called and said it was ready. When I picked it up the bill was exactly what he said it would be.
When I got home I couldn’t log on. My password didn’t work. I called him and asked if he did anything and he hadn’t. I brought it back in and he started looking at it and ran some diagnostics. He said it might take a couple of hours. I left and about an hour later he called and said it was ready. This was now after six at night. When I got there he powered it up to show me it was working. I asked how much I owed him for fixing it and he said nothing. I was willing to pay him but he refused.
Great customer service. Quick and friendly. I highly recommend them.

Great resource for computer repair. Professional, quick and easy access.
They ran a diagnosis on my desktop and I was pleasantly surprised at how quickly they were able to do it. Marcus and Sam are very professional and are experts and very trustworthy. I will not hesitate to bring in any of my computers here for repair because i know it will be in good hands. Please do not ask the geek squad for your computer repair needs, Expert Reaction Computer Services is the place you want to go for your computer repair needs.

Needed my internal hard drive backed up, and they did it with no fuss or muss. Just called, made a same-​day appointment, and got it back the next day. Their quote was pretty competitive as well.
A++ will do business with again!