There are two kinds of IT people, the ones who leave you more confused than when you started, and…read morethe ones who quietly solve the problem and get you back to running your business. Working with Matt was exactly that. He was prompt, professional, and refreshingly easy to work with. No unnecessary jargon, no drama, just honest expertise and a genuine commitment to getting the job done right. As a small business owner, having someone reliable to call when technology gets in the way is invaluable. If you're looking for an IT professional who knows his craft, communicates well, and delivers on his promises, I highly recommend him. Good people are hard to find. Great IT people are even harder.

I can't say enough great things about Matt. He absolutely saved me this week…read more My Lenovo laptop completely failed to boot after a graphics driver cleanup utility corrupted the Windows boot configuration and recovery environment. The system was stuck in a recovery loop, BitLocker was triggered, and Windows wouldn't load or even reliably enter repair mode. Multiple shops I called said it would take several days just to diagnose the issue. Matt turned it around in essentially one day. He was able to manually access the system, unlock BitLocker, repair the corrupted boot configuration, rebuild the necessary Windows files, and get the machine fully operational again -- without wiping my data. That was critical, as I had local files that weren't backed up to the cloud. Beyond the technical expertise, what impressed me most was: * Clear communication * Fast turnaround * Extremely reasonable pricing * No upselling, no unnecessary "reinstall everything" approach He diagnosed the real issue quickly and fixed it correctly the first time. If you're an independent contractor who depends on your machine daily, or you run a small to mid-sized business and need reliable, competent IT support, Matt is exactly who you want on your side. Look no further. Highly, highly recommend.

I have reviewed John before, not sure why my two rave reviews are not showing…read more I don't live in Chicago any more and had a recent issue with my computer. Worried about having to find a new computer guy I called John and was glad to find out that he is able to log on to my computer remotely via the internet. As usual he was very effective in solving all my problems. Thanks, John!

I didnt actually bring my laptop to him, but he was so helpful otherwise! He talked to me about mt…read morecomputer even though I had brought it in somewhere else, he kept in contact to see if my computer was fixed properly. He was just so kind and nice and ill definitely go to him next time!

Great service and timely delivery. Will use this business again. I recommend Oleg highlyread more

We have worked with Oleg of The Valueline Computer Services since 2015. He is very knowledgeable…read moreand a fantastic problem solver. The technical skill and intuition are second to none, Highly recommend. Wouldn't trust my business hardware and software to anybody else.

Liars - paid for next day delivery package still has not arrived 5 days later and losing business…read morebecause its needed for work. Will never ever use CDW again. Don't waste your time or money with them.

It's a great office in a great location. There are many things around the office as far as food…read moreselections. The area around this office is up and coming and growing ever week.

My laptop was working (thankfully), but I noticed something that I questioned if something was…read morewrong. Called a store and they naturally said I had to bring it in to check, blah, blah, blah. I offered to send a video, but they said to bring in. Called Marc, sent him the video and he called back and answered free of charge!!! Will be my go-to if needed in the future.

One two three.... my network is back up and running, all over the phone. Marc was responsive and…read morecalm, neither of which I was; afterall, my computers were down. Great timely service. Five stars without a doubt.

We had Goran come to our business today to transfer all the data from one computer to another. The…read moretransfer was super smooth and painless. Goran made sure that everything was working just the way we wanted it before he left. He was on time and very professional. So happy that we/I have finally found a super knowledgeable and trustworthy IT guy for our small business!!! HIGHLY recommend him to everyone for their computer software issues.

This is a unique hybrid of 1) old fashion customer care provided when YOU need help, no waiting…read morethrough an emergency tech problem until they get back to you and 2) cutting edge tech solutions designed to meet any need. I have use this company for years. Before I started using them my computers would blue screen and have other technical issues that slowed down my business and caused countless issues of lost data. Since I switched to Safehaven none of that has ever happened again. No more blue screen no more lost data no more downtime. The personal care and attention combined with innovative tech savvy is a rare dynamic duo you see much of anymore.

Let me paint a picture for you all:…read more Friday morning, I sat down in my hotel room in Champaign with a bit of breakfast and my laptop balanced on the arm of the couch. The computer fell back, hitting the floor and popping the glass screen out of the shell (rendering the computer completely unusable). Four hours later, I made it back to Mundelein and brought my computer to the Computer Guys. Three hours after that, the Computer Guys called me to tell me my problem was fixable, how long it would take, and how much it would cost. The next morning, I received another call to tell me it was ready for pickup. I got to the shop, verified that my laptop was up and running, and I went on my merry way, fully-functioning computer in hand. In less than 24 hours, my computer went from functional to broken to functional again, and I couldn't have done it (and done it affordably) without the Mundelein Computer Guys. As long as I live in the area, I won't go anywhere else for my computer-related needs.

Worst experience ever. I took my PC in for them to troubleshoot. After waiting 3 days, I called…read morethem to get an update and the guy on the phone didn't know but said he'll text me back. I didn't hear anything for next 2 days. I finally tried calling back and couldn't get through with anyone but texted them asking for an update. There was no response. I then go in and the guy was extremely rude and pointed at my computer which was on display at the front. It looked like it wasn't even looked at. I took it back and the guy was just very rude and awful. Very unprofessional people who don't seem to know anything about computers.

We were baffled about what to do with our printer problem but Mark really helped us out. He was…read morepersistent til he fixed the problem and was patient and explained, in clear terms, what was going on Even offered additional services. We'll definitely be repeat customers if we ever need computer services again as Mark went above and beyond what we would've expected. Happy Lake County Geek customers here!!

I would recommend Had to get my screen replaced on my laptop…read morebecause i think I accidently stepped on it - I dont recommend doing that lol Was given a quote for service and was completed within time quoted very happy to have it back Mark is a very personable person very responsive was nice to meet him and will for sure think of him again the process was simple and smooth which it a great service/value Thanks Mark! Tom

I had went in there to get my phone fixed and specifically said I didn't wanted a screen repair…read morejust a battery fix. when I came back he still did a screen replacement and charged me for it even when I told him i didn't wanted that. i was supposed to pay $45 but I was stuck with a bill of $175. Do better

I booked online, got an appointment for that afternoon. My iPhone was fixed quickly and at a good…read moreprice.

Tom and his professional team are the best. Expert…read moreknowledge and always responsive when I have needed them. Their new location is very, very nice and easy to get to.

I took my computer to absolute computer systems and they were very honest with me and told me that…read moreI would be better off getting a new computer. There was no charge to look at my computer. I was also told they give free estimates. I would definitely recommend absolute computer systems.