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JTG Systems
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JTG Systems
Broken screen, dead PSU, or sluggish hardware? We restore every device quickly with premium parts.
We are the highest-rated computer company in Niagara.
JTG Systems provides same-day diagnostics, component-level repairs, and performance upgrades for desktops, laptops, phones, gaming rigs, and tablets. Enjoy honest assessments, free diagnostics, and a 90-day workmanship warranty backed by 20+ years serving Niagara.
Walk-ins & onsite visits. Drop your device off in Niagara or schedule onsite service—our expert hardware technicians start right away.
Whether it’s a workstation that won’t power on, a gaming laptop overheating, or a smartphone with a shattered display, JTG Systems handles it all. We combine clean-room diagnostics, OEM-grade parts, and expert technicians to restore desktops, laptops, mobile devices, and peripherals across the Niagara Region.
From homes and home offices to corporate IT fleets, we offer emergency repairs, scheduled maintenance, and upgrade roadmaps. Every job starts with a free diagnostic and ends with a 90-day workmanship warranty—backed by 1,100+ five-star reviews.
Thousands of successful repairs across desktops, laptops, mobile devices, and gaming systems.
Emergency repairs available to minimize downtime for homes and businesses.
Free diagnostics and clear repair options so you can decide before we begin work.
Every repair includes our 90-day workmanship warranty and support for any follow-up questions.
Complete desktop PC repair services. From power supply failures to motherboard replacements, we fix it all.
Expert laptop repairs for all brands. Screen replacements, keyboard fixes, hinge repairs, and more.
Specialized gaming computer repairs and upgrades. Performance optimization for the ultimate gaming experience.
Expert Apple repair services. MacBook Pro, MacBook Air, iMac, and Mac Mini hardware repairs.
Fast repairs for iPhones, iPads, Samsung, and other mobile devices. Screens, batteries, and more.
Enhance your system with SSDs, RAM, GPUs, and cooling upgrades professionally installed.
Free diagnostics to pinpoint the issue and provide a transparent quote before work begins.
Component-level repairs or replacements performed by expert technicians using quality parts.
Every device passes stress tests and performance checks to confirm the repair.
Pick up at our Niagara shop or request onsite completion. Includes 90-day warranty coverage.
Upfront quotes with no hidden fees. We explain every option before we start.
Same-day service on critical repairs and fast follow-up when parts are required.
Experienced with all major brands, from Dell and HP to Lenovo, Apple, and custom rigs.
OEM or premium replacement parts installed to manufacturer standards.
Maintenance plans and upgrade roadmaps keep your devices running longer.
Full updates throughout every repair and support after your device is back in action.
Contact JTG Systems for a free diagnostic and fast repair plan. From desktops and laptops to mobile devices and peripherals, we get you back up and running quickly.
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