Computer Diagnosis & Service


When your computer starts slowing down, overheating, or behaving unpredictably, our Comprehensive Computer Diagnosis & Service gives you a clear picture of what’s going on — and how to fix it.


What’s Included

Our in-depth 12-point diagnostic service inspects both hardware and software to uncover the real cause of any issues.

Every service includes:

  • 12 detailed hardware & software tests
  • Light internal clean to improve airflow
  • Thermal paste re-application (if required)
  • Windows and BIOS updates for system stability
  • honest recommendations

Once complete, you’ll receive suggested repairs or if work or parts are required to make it operational, we’ll quote you first — no hidden fees or surprises.

Typical turnaround: 4–6 hours

Flat rate: $149



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What our customers say

Computer Build

5

"I recently got a high end Gaming/AI PC made by these gentleman. I could not recommend them any higher. It was fast with top notch communication throughout. If you have the opportunity to work with the take it."

Kai

PC Fix

5

"A big thank you to Warwick for going above and beyond, helping me out and getting me back up and running. The previous place I'd go to for PC parts and repairs would take weeks to fix anything. Warwick got everything sorted in just a few hours and everything was seamless."

Josh

Laptop Repair

5

The staff were very helpful & explained exactly what they were doing to my laptop. Checking that the battery replacement was the only problem! Will definitely return if another computer arises.

Jenny

New Computer

5

"We couldn't be happier with our experience at JLI Computers. After buying PCs and laptops through bit retail outlets for years we knew we needed to make a change. The service from every team member we interacted with was outstanding. They listened to our needs and requests for what we wanted in a new computer. The turnaround was extremely quick. We are so happy with our new PC in every way. We were even given some complimentary chocolates on pickup and a courtesy call afterwards to ensure everything was running smoothly. Wont go anywhere else now for all our IT needs! Thanks guys!"

Laura

Before and After

Computer screen displaying a test result with 'FAIL' in red text on a black background