Far and away the best computer repair in DC, and let me tell you why. I had my custom PC fixed here once in 2019 - they had it fixed completely in a couple days and for under $300, even though they had to buy a replacement component.
I had an installation a week or so ago I was not feeling ready to do myself. Best Buy was my first try, but the service just to set an appointment was bad. I asked Computer Plus to help me out, and they did the work in just a few days, the majority of which was waiting for a part to be shipped in.
The owner has been in the business for almost 30 years, so his prices are reasonable and reflect the experience of the team and the care they put in. There is also an option right on your initial ticket, to request an estimate before the staff begin work. I cannot recommend them highly enough. Imagine what they can do for your pre-built machine.