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Computer Repair in London, Ontario

When your desktop won’t start, blue-screens, restarts on its own or has slowed to a crawl, CVN Computers finds the real cause and fixes it — for homes and small businesses across London, Ontario. Straight answers, upfront pricing, and our no-fix, no-fee guarantee.

Desktop problems we repair

Won’t power on or no display
Blue screens (BSOD) or random restarts
Slow, freezing or crashing under load
Loud fans, overheating or shutdowns
No internet, Wi-Fi or Bluetooth
Failed Windows update or won’t boot

The straight answer first

Blue screens and random restarts usually trace back to one of a few things: failing storage, bad memory, overheating, a dying power supply or a driver problem. A proper diagnostic separates them quickly, so you’re not throwing parts at a machine and hoping.

We repair custom builds and big-brand desktops alike, and we’re happy to tune, upgrade or rebuild an older machine that’s worth keeping. If it isn’t, we’ll tell you.

How it works

Simple, honest, and you approve the price before any work begins.

Diagnose the root cause

A flat $44.99 diagnostic checks power, storage, memory, cooling and software so we fix the cause, not just the symptom — free with most repairs.

Clear quote, your call

We explain what’s wrong in plain language, quote it, and only proceed once you approve.

Repair, test & clean

We complete the repair, verify stability, and clean the machine — dust included — before it goes home.

Frequently asked questions

How much does computer repair cost in London?
A full diagnostic is a flat $44.99 and is free with most repairs. The repair itself is quoted based on the fault and parts — always approved by you first.
Why does my computer keep blue-screening?
Common causes are failing storage, faulty RAM, overheating, a weak power supply or a bad driver. Our diagnostic pinpoints which so the fix actually sticks.
Do you repair both custom and brand-name PCs?
Yes — custom builds and major brands like Dell, HP, Lenovo, ASUS and Acer. We also upgrade and rebuild older desktops that are worth keeping.
Can you come to me or is it drop-off?
Most desktop repairs are done in-shop, and we offer pickup and return across London — free on repairs over $99 — if you can’t make it in.
What if the repair costs more than the PC is worth?
We’ll tell you before you spend a cent on parts, and help you weigh a repair against a tested, warrantied refurbished machine.

Ready when you are.

Book online, call us, or drop by the shop in London. We’ll diagnose the problem, give you a straight answer, and only proceed once you say go.