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JTG Systems
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JTG Systems
Downtown offices, Brock students, and Port Dalhousie residents trust JTG Systems for fast, transparent computer repair across St. Catharines.
JTG Systems delivers laptop repair, cell phone screen replacement, and business IT support for downtown St. Catharines, Brock University, and surrounding neighbourhoods. Call or TEXT 905-892-4555. OPEN Monday to Friday, 12PM-6PM.
We’re familiar with James Street start-ups, Queenston medical clinics, and the hustle of students commuting from Thorold. That understanding shapes tech solutions designed for St. Catharines life.
From patient record protection to smart home setups, we provide meticulous diagnostic work, plain-language explanations, and updates that keep you in control.
Walk-in diagnostics minutes from Highway 406
Security-first processes for offices and clinics
Student-friendly service with quick turnarounds
Office networking, cybersecurity, and hardware support for legal, healthcare, and finance teams downtown.
Fast repairs, data recovery, and workstation tuning for Brock University and Niagara College communities.
Wi-Fi optimisation, backup strategies, and malware cleanup for families across the North End and Merritton.
Complete repairs, upgrades, and IT support for Garden City.
Need cell phone repair near me in St. Catharines? We replace cracked iPhone screens, fix Samsung charging ports, and revive student smartphones for downtown offices, Queenston clinics, and Brock University housing.
Call or Text (905) 892-4555 for same-day smartphone repair scheduling. TEXT is best. OPEN MONDAY - FRIDAY, 12PM-6PM. Most cracked screens, battery swaps, and charging port fixes are completed while you wait.
Let us know you're visiting from St. Catharines and we'll prioritize the devices that keep your business or household running.
Bring your St. Catharines devices to our Niagara Street computer shop in Welland—most fixes are completed while you wait.
JTG Systems at 577 Niagara Street in Welland provides expert computer repair for St. Catharines neighbourhoods including downtown, Brock University, Port Dalhousie, and the North End. Call 905-892-4555 for same-day service.
JTG Systems is St. Catharines' top-rated computer repair service with over 1,100 five-star reviews. We fix laptops, desktops, Macs, and phones with same-day service and a 90-day warranty.
Yes. We manage office networks, secure backups, and compliance-friendly repairs for professional services, clinics, and retail shops across St. Catharines.
. Most jobs are based on a free assessment depending on parts and labour, and every repair is backed by a 90-day warranty.
Absolutely. We provide quick-turn repairs, data recovery, and performance tuning for Brock University students and staff year-round.
Yes. We repair iPhone screens, Android devices, and tablets with same-day service. Our mobile repair bench handles cracked screens, battery replacements, and charging port fixes.
Most diagnostics are completed while you wait. Simple repairs like virus removal or screen swaps take 1-2 hours. Complex jobs like data recovery or board repairs may take 1-3 business days.
Every repair includes a 90-day workmanship warranty. Parts carry manufacturer warranties. We stand behind our work with free follow-up service for any issues that arise.
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