LOCAL REPAIR · O'FALLON, MISSOURI
Computer, Phone & Gaming PC Repair.
Diagnostics, repairs, upgrades and tech support for everyday devices and custom-built systems. Serving St. Charles County and surrounding areas.
Independent, locally operated · Service by appointment
COREWRENCH / SERVICERepair Services
Computers, phones, gaming PCs and odd tech jobs. These are starting points, not the limits of what you can ask about.
Computer Repair
Startup failures, crashes, slow systems, hardware issues and Windows problems.
See computer repairPhone Repair
Cracked screens, display problems, batteries and selected device repairs.
See phone repairGaming PCs
No display, GPU problems, overheating, instability and build troubleshooting.
See gaming pcsLaptop Repair
Displays, batteries, charging issues, cooling and upgrades.
See laptop repairBuilds & Upgrades
Custom PC builds, component installation, storage, memory and cooling.
See builds & upgradesTech Support
New computer setup, Wi-Fi, software and home-office technology.
See tech support
How Service Works
A clear process, from the first request through pickup.
- 01
Request
Tell us what device you have and what is happening.
- 02
Diagnose & estimate
We assess the issue and explain your repair options.
- 03
Approve
Review your estimate before repair work proceeds.
- 04
Track & collect
Follow repair updates through your private tracking link.
Clear estimates. Documented repairs.
CoreWrench is an independent, locally operated repair service. We explain our findings, confirm costs before additional billable work and provide updates while your device is with us.
How pricing worksLOCAL SERVICE
St. Charles County & surrounding areas
Based in O'Fallon, serving St. Charles County and surrounding areas by appointment. See our service-area page for specific communities.
View service areaNeed a repair?
Describe your device and the problem. We'll review the request and follow up with the next steps.