Proof points

Why Niagara trusts JTG Systems

20+

Years serving Niagara households & businesses

1100+

Five-star Google reviews and counting

Only computer repair partner in Niagara

Built to solve complex problems

Milestones at a glance

2002 — Military discipline: John learns discipline and focus for the small details others overlook; frequent inspections kept him ready then, and he will be ready for yours once your unit is working perfectly.
2005 — Police foundations graduate: John completes Niagara College's Police Foundations program in Welland and opens JTG Systems the same year as a fair, transparent computer repair workshop.
2010s — Community expansion: Partnerships with schools and Crime Stoppers reinforce security-first service.
2019 — Third-Party recognition: Named a Top Repair Business for Welland by threebestrated.ca.
2024 — Milestone reviews: Surpassed 1,000 Google reviews and earned Readers' Choice awards in Welland and St. Catharines.
2025 — Continuing accolades: Reaffirmed by threebestrated.ca as one of Welland's top repair businesses.
Today — Niagara-wide coverage: Same-day repairs, enterprise support, and 24/7 emergency response across the region.

What that means for you

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 in computer repair. Based in the Niagara region, our company has flourished over the past 20 years, driven by our commitment to rapid response, efficient solutions, and exceptional turnaround times. We take pride in our strong community ties and the positive impact we've made helping local residents and businesses.

Meet John Gallie

John Gallie, founder and owner of JTG Systems - Niagara Region's premier computer repair and data recovery expert since 2005

Born in May 1985 in St. Catharines, Ontario, John developed a passion for computers at a young age and has been working with them since Windows 95. He attended AK Wigg, Glenn A. Green, E.L. Crossley and graduated from Niagara College's Police Foundations program in Welland in 2005.

Military Service & Expertise

In 2002, John joined the Department of National Defence / Lincoln and Welland Regiment as a Canadian infantry soldier. During his three-year service, he underwent rigorous training in urban warfare, tactical strategies, and all infantry weapon systems. He was never deployed overseas, but served as a qualified small arms coach who scored marksman on his personal weapons test level 3—and he remains ready to answer the call if the country needs him.

John Gallie's military service certificates and commendations - showcasing technical training and leadership skills that built JTG Systems foundation

John Gallie during military service - developing the discipline and technical expertise that makes JTG Systems Niagara's most trusted computer repair business

Community Impact

JTG Systems actively contributes to the community by providing co-op opportunities for EL Crossley students, training them in computer repair using recycled equipment. We're also proud partners with Crime Stoppers Niagara, supporting their efforts to maintain community safety.

🎓 University Practicum Programs

We proudly host practicum programs for Cybersecurity students from:

Trios College - Cybersecurity Program
ABM College - Cybersecurity Program

We're passionate about helping the next generation of IT leaders coming into the workforce eager to learn. Through our electronics recycling program, we also provide students with computers and electronics to work on, ensuring they have hands-on resources to develop their skills and succeed in their careers.

Crime Stoppers Niagara partnership certificate - JTG Systems is the only computer repair company in Niagara Region officially partnered with Crime Stoppers for enhanced security

Awards & Recognition

20 years in business with a track record of great reviews and success
Highest-rated computer company in Niagara with 1100+ 5 star Google reviews
Readers' Choice Award Winner for Welland (2024) and St. Catharines (Diamond)
Rated as a Top Repair Business for Welland (2019, 2024, and 2025) by threebestrated.ca
Only Computer Company officially partnered with Crime Stoppers (Niagara)
Holds a Clean Police Clearance Certificate
Featured on TV Cogeco as a Guest Speaker on Cyber Crime Prevention
Practicum host teaching new technicians and cybersecurity students from ABM College and Trios College — Web Dev / Cyber Security / Networking programs

4.9

1100+ 5 Star Google Reviews

How our technicians keep Niagara running

Our senior team handles mission-critical recoveries, business network build-outs, and quick-turn consumer repairs. John brings his military-honed focus to every project, and the technicians follow a disciplined diagnostic protocol—no guesswork, just proven process.

Ready when you are—reach out and we will walk you through our findings, introduce the specialists handling your device, and keep you updated until the job is finished.

Specialist roster

Data Recovery Lab: Technicians recover drives, phones, and RAID arrays in a controlled workspace built for sensitive hardware.
Apple & Mobile Bench: Board-level microsoldering, OEM screen replacements, and logic board repair.
Business IT Field Team: Onsite support for Niagara offices, warehouses, and hospitality venues.