Custom PC Service
Expert Repair for Custom-Built Systems
Your custom rig deserves a technician who understands it. Whether it's a gaming powerhouse, a content creation workstation, or a homelab server, we diagnose and repair custom-built PCs with the same attention to detail that went into building them.
What We Fix
From simple part swaps to complex multi-component failures, we handle the full spectrum of custom PC repair.
Diagnostic & Troubleshooting
We identify hardware conflicts, failing components, and performance bottlenecks — even in complex multi-GPU or custom-loop builds.
Component Replacement
From motherboards and power supplies to GPUs and NVMe drives — we source compatible parts and handle the swap with care.
Thermal & Cooling Repairs
Custom loop leaks, AIO pump failures, thermal paste reapplication, and fan replacements to keep your system running cool.
Performance Optimization
BIOS tuning, RAM timings, driver cleanup, and OS optimization to get every frame and every second of render time back.
OS & Software Recovery
Corrupted installs, boot loops, and driver conflicts resolved. We rebuild your software environment without losing your data.
Upgrade Planning & Installation
Ready for more power? We help you choose the right upgrades — CPU, GPU, storage, RAM — and install them properly.
Why Trust Us with Your Custom Build
We Know Custom Hardware
Unlike big-box stores, we understand custom builds — from enthusiast rigs to boutique workstations. We won't void your warranty or misdiagnose the issue.
Local, Hands-On Service
No shipping your PC across the country. We work on it right here in Northern Virginia with direct communication throughout the process.
Transparent Pricing
We'll explain what's wrong, what it costs to fix, and whether it's worth repairing — before any work begins.
I have used Mount Vernon Computer several times over the past few years for a variety of computer problems. Each time Daryl provided quality service and really personalized attention to my computer issues. He has all sorts of options for people who need services, from remote services to hands on computer services. I highly recommend Mount Vernon Computers for any and all of your computer needs.Read full review
I have worked with Daryl recently to straighten out multiple computers, photos, and generally try to bring me into the 21st tech century. He is patient, punctual, knowledgeable and very pleasant to work with. Highly recommended.Read full review
Brought my computers into to be fixed and couldn't be more satisfied! Entire staff very friendly and professional and provided me the expert service I was looking for. I also bought a laptop that I needed at a very reasonable price. I look forward to doing further business with them in the future!Read full review
Need Your Custom PC Fixed?
Don't trust your custom rig to just anyone. Our technicians specialize in the hardware you actually use.