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JTG Systems
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JTG Systems
Founder John Gallie brings military-grade discipline and two decades of hands-on repair experience to every device that comes through our Welland workshop.
John Gallie
Founder & Lead Technician
Military-trained problem solver and the driving force behind Niagara's most-reviewed repair lab.
The Mission
20+
Years serving Niagara households & businesses
1100+
Five-star Google reviews and counting
DIAMOND
Readers' Choice Award Winner in St. Catharines
We dismantle challenges others turn away, from forensic data recovery to intricate board repairs.
John develops the focus for detail that defines our diagnostic protocol today.
After graduating Police Foundations, John opens JTG Systems as a transparent workshop.
Named Top Repair Business for Welland by threebestrated.ca.
Surpassed 1,000 reviews and won Readers' Choice Awards region-wide.
You get same-day service whenever possible, honest advice about what is worth repairing, and technicians who treat your data like their own.
Have a tricky project? Bring it in—we love solving the problems other shops turn away.
"Since its founding in 2005, JTG Systems has established a reputation for outstanding customer service. Driven by rapid response and efficient solutions, we pride ourselves on protecting Niagara's digital life."
John is an expert in computer repair, AI Tech Investor, and complex problem solver. He is a one-man think tank who loves his family, friends, and colleagues, and treats people with respect.
Born in St. Catharines, John developed a passion for computers at a young age. After graduating from Police Foundations in 2005, he applied his investigative training to the world of technology.
Read full professional bioIn 2002, John joined the Lincoln and Welland Regiment as an infantry soldier. Three years of rigorous tactical training in urban warfare and problem-solving under pressure built the foundation for JTG Systems.
We are the only computer repair firm in Niagara officially partnered with Crime Stoppers. Beyond security, we mentor local students through cybersecurity practicum programs.
Proprietary recovery from failed drives and RAID arrays.
Board-level microsoldering and OEM replacements.
Managed support for Niagara's enterprise nodes.
Authorized Partner
Join the 10,000+ local residents and businesses who trust John and his team to protect their digital lives.
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