Subtronics LLC
Repair & Diagnostics
When the PC won't boot, runs slow, crashes, or behaves strangely.
Troubleshooting HelpComputer Repair Services
Clear, local help for diagnostics, upgrades, cleanup, custom builds, and the kind of computer problems that are hard to sort out on your own.
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Looking for a page that matches your location? Use our Locations hub.
Helpful guides
See Guides for quick answers on remote support, malware cleanup, SSD upgrades, and data recovery.
Call or text:
810-280-2222
810-280-2222
Serving the Greater Flint area • Open 24/7 for messages & scheduling
Want predictable help?
Join Subtronics TechCare for unlimited remote support + maintenance.
Join Subtronics TechCare for unlimited remote support + maintenance.
Most common reasons people reach out
Diagnostics & Troubleshooting
Blue screens, random crashes, “won’t boot,” slow PC, weird errors — we find the real cause first.
Best first step if you’re not sure what you need.
PC Repairs
Hardware failures, overheating, power issues, OS problems, and general repairs for desktops.
Laptop Repairs
Slow laptops, storage upgrades, overheating fixes, software issues, and cleanup.
Upgrades & Performance
SSD/RAM upgrades, GPU installs, airflow improvements, and “make it feel new again.”
Custom PC Builds
Gaming, streaming, and workstation PCs built for your goals and your budget.
In‑Home / Business Support
Local on‑site troubleshooting, setup, and help for home and small business systems.
How it works
- Reach out (call/text) and tell us what’s happening.
- We diagnose the issue and explain your options.
- You approve the plan — then we repair, upgrade, or build it.
We don’t push parts you don’t need. If an upgrade makes sense, we’ll explain why. If it doesn’t, we’ll tell you that too.
Quick FAQ
Do you work on gaming PCs?
Yes — repairs, upgrades, troubleshooting crashes/FPS drops, and full custom builds.
Do you offer in-home or business service?
Yes. If you need on‑site help with setup or troubleshooting, we can usually accommodate.
Are you open 24/7?
We’re open 24/7 for messages and scheduling. If you call late, texting is usually the fastest way to reach us.
Popular local searches
These pages help people find us by the exact issue and city. If you’re a human: just call/text.
Flint
Grand Blanc
Davison
Burton
Helpful guides
Quick answers to common problems we see in Genesee County.
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Service categories at a glance
