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JTG Systems
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JTG Systems
Blue screen, startup failure, or a workstation that won't cooperate? We get Niagara computers back online fast.
We are the highest-rated computer company in Niagara.
We only charge for repairs—diagnostics at JTG Systems are 100% free with no obligation. Same-day service for desktops, gaming rigs, all-in-ones, and Macs. Backed by 1,100+ five-star reviews and a 90-day workmanship warranty.
Walk-ins & on-site service. Bring your computer to our Niagara shop or schedule a visit—our senior technicians will diagnose it on the spot and map out the repair.
JTG Systems in Welland provides 100% free diagnostics on all computers. We do not charge a fee just to look at your PC or Mac—you only pay for the actual repairs performed once you authorize the work.
With over 1,100 five-star reviews, JTG Systems at 577 Niagara Street is the premier choice for repair. We offer same-day service, 90-day warranties, and a police-cleared team for your security.
A black screen after a Windows or macOS update typically signals a corrupted display driver or an interrupted system installation. At JTG Systems, our diagnostic protocol identifies if the issue is a simple kernel reset requirement or a deeper SSD/NVMe file structure failure. Most update-related startup failures are resolved same-day.
Yes. Most "liquid-damaged" laptops are written off by Big Tech retailers as unfixable. However, using microsoldering and ultrasonic cleaning, our senior technicians can often restore corroded traces and replace individual shorted capacitors on the logic board, saving our customers thousands over a full device replacement.
Same-Day Completion
Of all computer repair issues in Welland and St. Catharines are resolved within 24 hours of drop-off.
Reliable computer repair in Niagara is just a phone call away. At JTG Systems we diagnose and resolve everything from to complex board-level circuitry failures. Our senior technicians combine rapid diagnostics with transparent, real-time communication.
Whether you depend on a high-performance gaming rig, business workstation, or family laptop, we service Windows, macOS, and custom builds with genuine industrial components and a solid 90-day workmanship warranty.
Professional laptop keyboard replacement and repair
Audio and charging jack repair services
LCD and LED screen replacement services
Windows, Mac, and Linux operating system installation
WiFi and connectivity troubleshooting
Environmentally responsible electronics disposal
Experience the difference of a professional lab environment. We treat every device with forensic care and enterprise-grade tools.
We prioritize prompt service delivery to minimize your downtime. Our skilled technicians work efficiently to diagnose and resolve computer issues, ensuring quick turnaround times.
Our focus is on providing reliable and long-lasting repairs using high-quality components and industrial techniques in a professional repair laboratory setting.
Competitive, flat-rate pricing models for major repairs. No hidden diagnostic fees or surprise invoices—just honest technical support when you need it most.
With decades of experience and specialized certifications, our team handles complex board-level repairs that other shops simply cannot perform.
Professional solutions for every computing tier.
Our skilled technicians diagnose and repair a wide range of PC and laptop issues, from critical hardware failures to persistent software glitches, ensuring optimal device performance.
We effectively eliminate malware using forensic tools to detect and remove deep-seated threats, ensuring your system remains protected and your personal data stays safe.
Specialized laboratory data recovery techniques help retrieve valuable information from various storage devices, including failing hard drives, corrupt SSDs, and dead flash drives.
Complete system tune-ups including NVMe SSD migration, OS stabilization, and hardware cleaning to keep your computer running like new and extend its functional lifespan.
Don't struggle with a slow or broken computer. JTG Systems provides rapid, professional repairs so you can get back to work or play with peace of mind.
Discover our comprehensive range of technical services designed to keep your devices running smoothly
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