Community & retail
Recognized local names
Our client community includes Crime Stoppers Niagara, Merrittville Speedway, and two local Shoppers Drug Mart franchise owners.
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JTG Systems
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JTG Systems
From single-GPU creative rigs to 4-GPU training servers, we design, cable-manage, and burn-in every system locally.
We are the highest-rated computer company in Niagara.
Need Stable Diffusion on your desk, multi-camera Resolve timelines, or a private LLM fine-tuning box? We spec NVIDIA RTX/ADA GPUs, ECC memory, Gen4 storage, and enterprise thermals so Niagara teams can iterate without waiting on the cloud.
Text for a quick reply. Are you looking for AI Computer Builds & GPU Workstations? You found it. Visit us at 23 Sharon Ave in Welland. Text or call (905) 892-4555 and our team will confirm the next step right away.
Package tiers
Every build includes parts procurement, thermal + acoustic tuning, Windows/Linux imaging, and pickup/delivery within Niagara.
Single-GPU tower tuned for Stable Diffusion, Resolve, and mixed creative workloads.
Dual-GPU workstation for simultaneous training + rendering with whisper quiet acoustics.
4-GPU 4U server with IPMI, redundant PSUs, and hot-swap NVMe for 24/7 inference or fine-tuning.
Fine-tune open LLMs, run vector DBs, orchestrate LangChain/AutoGen stacks, and benchmark token throughput before handoff to your developers.
Stable Diffusion, Runway, Topaz, DaVinci Resolve, Unreal Engine, and Blender tuned with optimized VRAM allocation + fast scratch disks.
Ubuntu/ROS dual-boot images, real-time IO, CAN bus, PLC integration, and sensor capture so Niagara manufacturers can test automation locally.
Thermal modeling, redundant power, UPS sizing, Grafana dashboards, and remote management so you can host models onsite confidently.
Niagara clients use our AI builds for Stable Diffusion marketing assets, Whisper/Athena captioning, deepfake forensics, PLC + robot vision, chatbot pilots, and internal LLM sandboxes without shipping data to the cloud.
Trusted by Niagara residents and businesses.
Fast turnaround on most diagnostics and repairs.
Workmanship coverage on qualifying services.
Deep, multi‑vendor expertise across PC, Mac, and mobile.
100% free professional assessment.
Best Computer Repair — local Readers’ Choice.
Recognized in St. Catharines area.
Listed in 2019 and 2024.
Built on a foundation of integrity, expertise, and community trust.
Proudly serving the entire Niagara Region since 2005.
Consistently rated 4.9/5 on Google by happy customers.
Disciplined, security-minded service praised by individual police-service members.
The only computer shop partnered with Crime Stoppers Niagara.
Trusted across Niagara
People bring us the technology their work, finances, and daily lives depend on. That trust has grown through careful service, strong security practices, and word-of-mouth recommendations.
Community & retail
Our client community includes Crime Stoppers Niagara, Merrittville Speedway, and two local Shoppers Drug Mart franchise owners.
Individual police-service members
We have serviced more than 10 individual NRPS members, who speak highly of our work. Police services do not directly endorse private businesses.
Financial & legal professionals
We support the tax and accounting systems used by Jboey CPA, along with computers used by financial advisors, real-estate lawyers, and other professionals who handle sensitive information.
Cyber-fraud recovery
Local banks regularly refer cyber-fraud victims to us. We secure affected laptops and phones so clients can meet their bank’s requirements to reactivate their accounts.
Automotive businesses
Joe’s Garage in Port Colborne and Burkholder in Welland are among the local automotive businesses that rely on JTG Systems.
Owner-led local services
ALR Private Car Services (Greg), Integrity Cleaning Services Inc. (Rachel), and many more valued local clients choose JTG Systems.
Ask around Niagara—there is a good chance someone you trust already recommends JTG Systems. Some clients even drive from Grimsby because they value the service they receive here.
Common questions
We configure builds for LLM fine-tuning and inference, Stable Diffusion and generative visuals, video AI pipelines, voice transcription, robotics and ROS development, PLC integration, and general automation prototyping.
Yes. We image Windows 11 Pro, Ubuntu, and dual-boot configurations, install NVIDIA drivers, CUDA, Docker, and common ML frameworks, and validate the stack before handoff.
We offer local pickup in the Niagara Region plus onsite delivery, cabling, network integration, and a walk-through of thermals and monitoring for larger workstation and rack deployments.
Most builds are ready within 7 to 14 business days after parts arrive, depending on GPU availability and configuration complexity. Every system runs a 48-hour burn-in with render and LLM workloads before delivery.
We spec NVIDIA GeForce RTX, RTX Ada Generation, L40S, and datacenter-class GPUs based on your workload, budget, and power requirements. We avoid unsupported claims and choose parts with verified thermal and power headroom.
Call or text with your software stack, dataset sizes, and preferred GPUs. We'll scope specifications, timelines, and setup requirements during the consultation.