Custom Control Panels Designed and Built in Ontario
From single-panel retrofits to production-run builds, we design and fabricate industrial control panels that are engineered for serviceability and inspected for compliance — not just wired to spec.
Why Gohn Controls
Custom Panel Design
Every panel starts as a design problem, not a parts list. We design and build custom control panels for OEMs, integrators, and manufacturers across Ontario — working through power distribution, interconnections, and safety logic up front, so what ships is documented and serviceable, not just wired to spec.
- • Power distribution schematics
- • Electrical schematics, single line diagrams, and system interconnections
- • Safety system design
- • Cable routing and cable matrix
- • Detailed component BOMs
Certified Fabrication & Compliance
Panel Types We Build
- • PLC and HMI panels
- • VFD panels
- • Motor control panels
- • Remote I/O panels
- • Power distribution panels
- • Network panels and server racks
- • Terminal boxes
Compliance & Approvals
- • UL508A and CSA design practices built in from layout
- • CSA inspection coordination, including third-party review and QPS SPE-1000
- • Complete documentation packages for every build
- • Components selected for availability, maintainability, and long-term support
Design-Build or Build-to-Print
Build-to-Print
You already have drawings, a BOM, or a detailed spec. We fabricate to your print, flag anything that needs clarification, and deliver exactly what was designed.
Design-Build
You have a machine, photos of an old panel, or a rough set of requirements. We handle the design from concept through fabrication, with your sign-off before we build.
Panel Build Process
RFQ Review
We review your drawings, BOM, or rough requirements and scope the project.
Design & BOM
Schematics, layout, and a detailed bill of materials are developed or finalized.
Customer Review
You review and sign off on design and BOM before fabrication starts.
Procurement & Build
Components are sourced and the panel is fabricated and wired in our shop.
QA & Checkout
Every panel is checked out against drawings before it leaves the shop.
Approval Coordination
We coordinate third-party inspection where required for your installation.
Delivery & Startup
Panel ships ready to install, with support available through startup.
Panels We've Designed, Built, and Installed
Typical Projects
- PLC and HMI control panels for industrial machine builders
- VFD and motor control panels for conveyor and material handling systems
- Remote I/O panels and cabinets for distributed control systems
- Safety control panels with safety relays and monitored interlocks
- Control panel retrofits replacing obsolete PLCs and drives
- Build-to-print panels for system integrators needing build capacity
What to Send for a Quote
The more context you give us up front, the faster we can scope your panel accurately. None of the items below are required to get started — send what you have.
- Electrical drawings, if available
- BOM or component list
- Photos of the existing panel or machine
- Voltage and power requirements
- PLC, HMI, VFD, or safety platform preference
- Quantity required
- Approval or inspection needs
- Delivery timeline
- Installation or commissioning requirements
Existing Panel Problems We Can Help With
Panel Redraws for Existing Systems
No drawings for an existing panel? We can reverse-engineer it into clean, current schematics.
- • As-built electrical schematics
- • Updated BOM and component list
- • Network and I/O documentation
- • Useful before a retrofit, audit, or PHSR
Control Panel Retrofits & Upgrades
Modernizing an existing panel often costs less than a full replacement — and keeps your line running.
- • PLC and HMI platform migrations
- • Obsolete component replacement
- • VFD and servo upgrades
- • Safety system and I/O upgrades
Troubleshooting & Field Support
Unplanned downtime is expensive. We diagnose control panel issues on your equipment, including third-party builds.
- • PLC and electrical fault finding
- • HMI and VFD troubleshooting
- • Network diagnostics
- • Startup and commissioning support
Common Questions
Can you build to our existing drawings?
Yes. If you have drawings, a BOM, or a spec sheet, we'll build to print. If you only have a machine, photos, or a rough idea of what's needed, we'll handle the design from scratch.
Are your panels CSA certified?
Yes. Panels are fabricated to UL508A and CSA design practices, and we coordinate third-party inspection — including QPS SPE-1000 — when your project requires it.
How long does a custom control panel take to build?
It depends on scope, component lead times, and inspection requirements. Tell us your timeline on the quote form and we'll confirm what's realistic before any work starts.
Do you build single panels or production runs?
Both. We regularly build one-off panels for retrofits and small batches for OEMs and integrators who need repeatable builds.
We don't have drawings for our existing panel — can you still help?
Yes. We can redraw an existing panel from photos and an on-site or remote review, which is often the first step before a retrofit or safety upgrade.
Can you replace or retrofit an existing control panel?
Yes — retrofits and upgrades are some of our most common projects. PLC and HMI migrations, obsolete component replacement, and safety system upgrades, often at a fraction of the cost of a full panel replacement.
Ready to Discuss Your Project?
We work with plant managers, OEMs, and integrators across Ontario. Let's talk about what you need.
+1 (905) 960-9535company@gohncontrols.comSend Us a Message