For more than 20 years Compute This Online has been providing computer support for small businesses and end users along the east coast of Florida.
If you’re having a computer crisis, you’ve come to the right place!
Call 888.752.9049 for a free consultation!
(Best time to call – Monday through Friday between the hours of 10:30 am and 5:00 pm.)
Or… Click SOS if you have a problem you need help with right now…
“We’re confident we can handle all of your IT/computer support needs.”
Our mission is to provide IT department levels of support to small businesses and home users for a fraction of the cost of staffing an IT department.


I have used Sean McCarthy’s Compute This Online IT support services for many years. And I have always been able to rely on him for my computer needs. I am a solo attorney running my own practice, and like most small businesses. I rely on my office computers to stay profitable. Recently, when my server went down with a virus. Sean jumped right in and was able to get all of my programs and data switched over to the new computer. And he was able to do it remotely! I would not hesitate to refer Compute This Online for any of your personal or business computer needs.
Sean McCarthy of Compute this online has been servicing & fixing my business computer for more than 10 years, Compute this online also services my mother’s computer, he has always been available when contacted to deal with any issue that comes up and Sean has been a pleasure to work with throughout these many years.
Just a note to tell how grateful I was to find Sean McCarthy, Computer Guru, and COMPUTE THIS ONLINE to repair my computer. I have been reading his articles for the past couple years and made the decision to call him instead of taking my computer to a shop. Inadvertently, after a power outage, I had pressed the F10 button on my keyboard and lost all my files, documents, pictures, folders, etc. I contacted Sean, who was friendly, patient, extremely knowledgeable and able to restore what I thought to be lost data. All the work was done on the phone, over the internet and in less than two hours, my computer was up and running with all my data back and in tact. He performed what he called “a data transplant” and I must say it was “painless.” I have already recommended Sean to several of my friends and once you have called him, you will realize what a great decision it was. Thank you, Sean!
Having had to call on Sean twice in the past two years to free my computer of viruses, I was pleased that he was not only able to clean the viruses from my computer but also to restore operational speed. One in home visit, took 3 hours of his time and the other was at least two hours. I gladly paid for his time. So, when he mentioned the Compute This Online maintenance club with monthly tune ups between his and my computer directly, I was very interested. When he told me what the cost per month would be, I quickly deducted that his cost to me per year for this monthly service would be much less than the service call I had needed before. The added advantage of finding problems in an early stage and the convenience of a phone call each month for the service, sold me very quickly. Knowing that Sean will be there each month for my computer check up is reassuring and I would recommend Sean and this service to everyone.
Sean McCarthy has been my source for fixing my computer when things go bad with my laptop. He has worked on my computers, at least, six times over the past few years. Sean has also been a source of information, and immediate assistance, when needed. Sometimes, I just wanted my computer to be working again and not have to consider buying a new laptop and learning another computers operating system. I pay my auto repair person good money to fix my car when I can’t drive it, for some reason. I pay my orthopedic surgeon really good money to fix my shoulders and knee when they needed to be surgically repaired. I pay Sean McCarthy what he asks for because of the same reasons I pay good money to the Dr. & Auto Mechanic. Sean McCarthy fixes my computer, tweaks it so that it runs efficiently, and answers any questions I might have. Over the past twenty years of using computer Doctors to fix a problem for me, Sean is, by far, the most trustworthy person I have ever let touch my computer.
My computer was so slow that I thought I had used up all of the memory and I was about to go out and replace the entire computer with a brand new one. I saw an article in my local paper from a computer repair guy called the MouseWhisperer that said he could fix computers on the internet and listed a very reasonable price. Since I had nothing to lose, I called Sean McCarthy and after explaining my problem, he took control of my computer and within minutes my computer was operating like new. Sean took the time to explain why the computer slowed down and also replaced my security system with a free system. All of this within one hour and at a very reasonable price. No waiting at home for someone to show up. Just one phone call and the problem was fixed.
I don’t normally do this but Compute This Online is one vendor that I highly recommend. I pay a reasonable fee annually and he keeps my system up and running and free of everything evil. He’s on call 24/7 (I think, I’ve not ever been unable to reach him when I needed him). He saved my bacon more than once and really knows how to dig deep to solve my problems. I honestly believe that he has saved me more than I have paid him – both in hardware and software. He comes on line (with your permission and at your convenience) once a month, bangs around for five or ten minutes and bang… clean system, doing what it should w/no worries on my part. I highly recommend him.
Hi y’all,
I have trusted Sean McCarthy to help me with my IT support for over 14 years, which obviously means that I am a very satisfied customer.
I can’t say enough good things about you Sean. From the beginning over a decade ago when my compute crashed, you spent about 4 hours and resurrected it thankfully. From that time on you have always been there for me on any issues beyond my abilities to total satisfaction. The ability to do this remotely saves countless hours if taken into a shop elsewhere each time. Keep up that quality and personal touch you give each of us.