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Custom PC Builds in London, Ontario

Want a machine built around exactly what you do — gaming, streaming, editing, CAD or a quiet everyday PC? CVN Computers designs, builds and tunes custom computers in London, Ontario. Bring your parts or let us spec the whole thing to your budget and goals.

Book this repair Call (226) 641-6838

We build for…

High-refresh gaming and streaming rigs
Video, photo and 3D/CAD workstations
Quiet, tidy home and office PCs
Small-form-factor and cases with a theme
Custom hard-line and soft-line water cooling
Upgrades and rebuilds of an existing PC

The straight answer first

A good build isn’t just about the most expensive parts — it’s about the right parts working together, cooled well and set up correctly. That’s the difference between a PC that quietly does its job for years and one that throttles, crashes or sounds like a jet.

Already have parts? We’ll assemble and tune them. Not sure where to start? Tell us your budget and what you’ll use it for, and we’ll spec a build that makes sense — then show you why.

How it works

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

Plan the build

We match components to your budget and workload — balanced, no wasted money on parts that won’t help what you actually do.

Expert assembly

Careful assembly, clean cable management, correct thermal paste and airflow, and BIOS set up properly from the start.

Stress-test & tune

We validate stability under load, confirm temperatures and clocks, and hand over a machine that’s ready to go.

Frequently asked questions

How much does it cost to build a custom PC?
Our build labour — assembly, cable management, BIOS setup and stress-testing — starts at $79.99. Parts are separate and chosen with you to fit your budget and goals.
Can I supply my own parts?
Absolutely. Bring your components and we’ll assemble, tune and test the build. We’ll also flag any compatibility issues before we start so nothing goes to waste.
Do you do custom water cooling?
Yes — both soft-line and hard-line custom loops, plus loop flush-and-refill maintenance. It’s specialist work and we quote it after discussing your case and goals.
Will you help me choose parts within a budget?
That’s the best way to start. Tell us your budget and what you’ll use the PC for, and we’ll recommend a balanced build and explain the trade-offs in plain terms.
Do you offer a warranty on builds?
Yes — our build workmanship is warrantied, and quality components carry their own manufacturer warranties, which we help you register and track.

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.

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