Computer Repair & Tech Support in O'Fallon, Missouri
PCs, laptops, gaming systems, upgrades, custom builds and general technology support, without the runaround.
- Local service
- Pricing before work begins
- Drop-off, pickup or on-site
Bench ticket
Example
- Device
- Gaming PC, self-built
- Reported
- "Games crash after about 20 minutes."
Checked before anything is replaced
- CPU and GPU temperatures under sustained load
- Memory stability with XMP/EXPO off
- Power supply behavior on load spikes
- GPU driver and Windows event logs
What we fix
Start with the device. If yours isn't here, the last card is for you.
Computer Repair
Desktop PCs that won't start, crash, run slowly, overheat or have hardware and Windows problems.
See computer repairGaming PCs
No POST, crashes, GPU issues, thermals, component upgrades, performance troubleshooting and custom systems.
See gaming pcsLaptops
Storage, RAM, batteries, cooling, displays and general laptop troubleshooting and repair.
See laptopsSomething else?
Have another device or technology problem? Tell us what you have and what's going wrong.
Tell us what you have
Common problems
The things people bring in most. Your problem doesn't have to be on the list.
Don't see your issue? Ask us.
Tell Us What's Going On- Computer won't turn on
- No display
- Blue screens
- Random crashes
- Games crashing
- Computer overheating
- Slow performance
- Wi-Fi problems
- Need more storage
- Need a hardware upgrade
- Laptop battery problems
- New PC setup
Services
- Computer RepairDesktops with startup, stability, performance, Windows or hardware problems.
- Gaming PCsDiagnostics, stability, thermals and upgrades for gaming systems, including ones you built yourself.
- Laptop RepairCommon laptop repairs and upgrades. Availability depends on the model and parts.
- Builds & UpgradesCustom PC assembly and part-by-part upgrades, checked for compatibility first.
- Windows & SoftwareWhen the hardware is fine but Windows isn't.
- Home & General Tech SupportEveryday technology around the house and home office.
- Other tech servicesNot listed? Ask. Many problems are considered case by case.
Pricing
Pricing varies by device and repair complexity. You'll receive pricing before billable repair work begins.
View Pricing- Step 1Diagnose
- Step 2Quote
- Step 3You approve, then we repair
Why CoreWrench
Straightforward
Clear communication about the problem, the options and the expected cost.
Technical
Real troubleshooting and diagnostics, not blindly replacing components until something works.
Local
Independent local service based in the O'Fallon area.
Flexible
Don't see your exact issue listed? Ask. Many technology problems are considered case by case.
Not sure what's wrong?
That's okay. Tell us what device you have and what's happening, and we'll let you know whether it's something we can help with.