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JTG Systems
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JTG Systems
Professional component replacement and circuit-level repair for all computer hardware
We are the highest-rated computer company in Niagara.
Professional computer hardware repair services in Niagara. Motherboard, CPU, GPU, RAM repairs with same-day service and 90-day warranty. Expert diagnostics and component replacement.
Text for a quick reply. Are you looking for Hardware Failures? Components Broken?? You found it. We have moved. Call or text before visiting. Text or call (905) 892-4555 and our team will confirm the next step right away.
Hardware failures can be complex, but our expert technicians have the tools and experience to fix any component issue. From desktop computers to laptops, gaming PCs to servers, we specialize in repairing what others say needs to be replaced.
We maintain a stock of high-quality replacement parts and use professional diagnostic equipment to identify faults at the circuit level. Whether it's a blown capacitor, a shorted chip, or simply a failing drive, we get to the root cause quickly.
⚡ Free Diagnostic Service: We'll diagnose your hardware issue at no charge before any work begins.
Critical component that connects all parts of your computer. When it fails, the entire system stops working.
The brain of your computer. CPU failures are less common but require precise replacement and thermal management.
System memory issues cause crashes, blue screens, and instability. Quick diagnosis and replacement available.
GPU repairs for gaming, design work, and display issues. Both integrated and dedicated graphics solutions.
PSU issues can damage other components. We test, repair, and replace power supplies safely.
HDD/SSD replacement and upgrades with data migration. Improve performance with modern storage.
Micro-soldering and circuit board repairs for complex hardware failures.
Hardware upgrades to boost system performance and extend computer lifespan.
Regular maintenance to prevent hardware failures and extend system life.
“John has helped me more than a handful of times with various computer stuff, Example helping me build a gaming Computer and getting rid of viruses and some Junk ware, Ransomware and more! He's an all-around good guy and I consider him a friend; and I'm sure he feels the same way. I'm always treated with respect and I feel like a valued customer - He treats all customers like that. Definitely a pleasure doing business with JTG Systems, I know I will be back... not with the same issues but other stuff I need a hand with, Thanks and Great Job!”
We use professional diagnostic tools including multimeters, oscilloscopes, and specialized test software to identify exact component failures. Our free diagnostic service means you know exactly what's wrong before you pay.
Yes, we specialize in liquid damage repair including corrosion removal, trace repair, and component replacement. Success depends on how quickly you bring the device and the extent of damage.
We use OEM or equivalent high-quality replacement parts that meet or exceed original specifications. All parts come with manufacturer warranties plus our own labor warranty.
We maintain relationships with specialized suppliers and can often source parts for older systems. If parts aren't available, we'll recommend suitable upgrade paths or refurbished alternatives.
Save money and reduce e-waste by letting our experts fix your hardware.