Subtronics LLC Call/Text for On-Site Service

PC Upgrades, Diagnostics, Optimization & Repair Services

Start with the service that matches your goal: make your current PC faster, find out what is wrong, optimize a gaming system, repair a broken computer, recycle old equipment, or price out a new build.

Looking for a new computer?
Visit Gaming PC Prices & Builds to compare value prebuilts, custom gaming PCs, and other new-system options.
Computer repair workbench with open desktop PC and repair tools
We come to you. In-home and business on-site service is available across Genesee County for diagnostics, upgrades, setup, and many repair needs. Subtronics is a mobile/home-office business with no public storefront drop-off address.

Professional Computer Services in Genesee County

Subtronics LLC specializes in diagnosing and fixing real-world computer problems instead of replacing parts blindly. We work on desktops and laptops across Flint, Grand Blanc, Fenton, Davison, Flushing, and nearby communities.

Our goal is simple: help you choose the smartest solution for your situation, whether that means a repair, a practical upgrade, recycling the system, or replacing it entirely.

$65 diagnostic fee is applied toward your repair if you move forward.

Priority local service pages

Flint

Computer repair, upgrades, and diagnostics for Flint customers.

Grand Blanc

Local computer repair and performance help for Grand Blanc.

Fenton

Repair, diagnostics, and upgrade help for Fenton customers.

Choose the kind of help you need

Computer Diagnostics

For crashes, boot failures, overheating, strange behavior, or anytime you want the real answer before paying for repair work.

Fix Your Computer

Broken desktops, hardware failures, startup problems, and repair work for systems that are not working the way they should.

Laptop Repair

Charging issues, overheating, battery problems, hinge damage, and laptop-specific troubleshooting.

Upgrade Your Computer

SSD, RAM, GPU, cooling, and other practical upgrades that can make an older computer feel dramatically better.

Optimize My PC

Performance tuning, bloatware cleanup, driver updates, gaming FPS help, and new prebuilt setup.

Virus & Malware Removal

Cleanup and hardening for suspicious, infected, or heavily pop-up-ridden systems.

Data Backup & Drive Cloning

File transfer, full system cloning, operating system migration, and settings transfer when the data matters as much as the hardware.

Free Computer Recycling

Call or text before tossing an old PC. We can help decide if it is worth repair, then recycle eligible computer equipment if it is not.

Remote Support

Fast help for software problems that do not require hardware repair.

New Computer Setup

We can help move files, install programs, transfer settings, and get everything ready to use.

In-Home & Business Support

On-site help for setup, troubleshooting, Wi-Fi issues, and hardwired internet installation when it is easier for us to come to you.
Real desktop computer opened during Subtronics repair and upgrade work
Real repair and upgrade work gives the services page stronger proof than generic visuals alone.
Real custom Subtronics gaming PC build with RGB lighting
Customers shopping for a new machine can move straight from repair questions into actual build and pricing options.

Common reasons people contact Subtronics

  • Computer is slow, freezing, or randomly restarting
  • PC turns on but there is no display
  • Laptop is running hot or battery is failing
  • Need more storage, more RAM, or a faster SSD
  • Need a new computer for home, work, or gaming
  • Need to know if an old computer is worth repairing or recycling
  • Need setup, network help, or hardwired internet installation at home or work

Not sure whether to repair, upgrade, recycle, or replace?

That is exactly what diagnostics are for. We can check the computer, explain what is wrong, and tell you whether repair, upgrade, recycling, or replacement makes the most sense.

Diagnostic fee: $65. If you move forward with the work, the full $65 goes toward the job. If you decide not to proceed, you only pay the diagnostic fee and nothing more.

Start with diagnostics Recycle an old computer See new computer pricing

What happens next?

  1. Call or text Subtronics with the computer details, symptoms, and photos if available.
  2. We help decide whether a phone consult, on-site diagnostic, repair, upgrade, or recycling conversation makes sense.
  3. You decide whether to move forward.
  4. If you approve repair work, your $65 diagnostic goes toward the job.
Need help fast?
Call or text 810-280-2222 and describe the problem in one sentence. We will point you to the right next step.
Book In-Home / On-Site Service

Popular repair requests

Computer Repair

Help for slow computers, shutdowns, crashes, boot problems, and desktop repair work.

Virus Removal

Remove malware, pop-ups, browser hijackers, and unwanted software cleanly.

Data Recovery

Recover files from failing drives, no-boot systems, and accidental deletion situations.

Computer Recycling

Free recycling for eligible old PCs, laptops, parts, and accessories, with optional Privacy Protect drive wiping.

Hard Drive Repair

Signs of drive failure, replacement options, and upgrade paths to SSD storage.

Motherboard Repair

No power, random shutdowns, or no-display problems that may trace back to the board.

Remote Support

Remote help when the system still boots and you cannot schedule service right away.