Hardware Diagnostics & Component Repair in Alexandria
When your computer stops working, it's not always obvious what's wrong. Mount Vernon Computers provides professional hardware diagnostics for homes and businesses across Alexandria. We use specialized tools and years of hands-on experience to pinpoint failing components — motherboards, RAM, hard drives, power supplies, and more — then replace them with quality parts so your system runs reliably again.
From a clicking hard drive to a motherboard that won't post, we've seen it all. Our on-site service throughout Alexandria and Northern Virginia means you don't have to haul your computer to a shop and wait days for answers. We come to you, diagnose the problem on the spot, and get your machine back in working order — often in a single visit.
Pinpoint Diagnostics
We use professional tools to identify exactly which component is failing — no guesswork, no unnecessary replacements.
On-Site Service
We come to your home or office in Alexandria with the tools needed to diagnose and repair on the spot.
Honest Assessments
You'll get a clear explanation of what's wrong and whether repair makes financial sense — before any work begins.
What We Diagnose & Repair
We test for bad sectors, failing drives, and data corruption — and replace drives while preserving your files whenever possible.
Random shutdowns and failure to power on often point to the power supply. We test and replace them on-site.
No POST, beep codes, or dead ports? We diagnose motherboard-level issues and advise on repair vs. replacement.
Blue screens and random crashes can stem from faulty memory. We test each stick and replace or upgrade as needed.
Overheating causes throttling and shutdowns. We clean, replace fans, and reapply thermal paste to restore proper cooling.
Display artifacts, crashes during games, or no video output — we diagnose GPU issues and replace cards when needed.
Loose USB ports, broken HDMI, or a damaged charging jack — we repair or replace damaged connectors.
We resolve boot failures, BIOS corruption, and firmware update problems that prevent your system from starting.
Honest Diagnostics, No Guesswork
We never replace parts without confirming the diagnosis first. You'll get a clear explanation of what's wrong, what it costs to fix, and whether a repair makes financial sense — before any work begins.
I can't say enough great things about this computer repair shop! They delivered my PC right to my door, which was such a convenience. From start to finish, the customer service was outstanding — friendly, professional, and incredibly helpful.Read full review
I am pleased and impressed by the quick response and services provided. I'd been dreading the task of getting my computer serviced and Daryl made it so easy. He picked it up, kept in touch regarding what it needed, and when he returned it, took the time to show me some shortcuts and navigation tools.Read full review
Mount Vernon Computers is my go to computer repair shop every time I have a problem or need help with my computer. Daryl is so nice and professional that you're not scared to ask a question. He has helped me get a computer with motherboard problems repaired and another computer with GPU problems fixed. I got a new computer and needed help so I called them and Daryl was kind enough to do a video call and walked me through my problem and eventually solved it! 10/10 Highly recommend!Read full review