Mobile welding & on-site fabrication

Mobile Welding & On-Site Steel Fabrication for Commercial Facilities

On-site welding and field fabrication services for commercial and industrial projects, supporting repairs, modifications, and structural work directly at your facility across Toronto and the GTA.

Mobile Welding & On-Site Steel Fabrication Services

Mobile welding and on-site steel fabrication play a critical role in commercial and industrial projects across Ontario, where structures, equipment, and safety systems often require modification, repair, or integration on-site. These services allow structural steel work to be completed without dismantling existing installations or transporting oversized components, helping maintain project schedules and operational continuity.

On-site fabrication is commonly used for structural adjustments, equipment supports, safety railings, stairs, and custom steel elements that must align precisely with existing conditions. Certified mobile welding crews work in accordance with Ontario Building Code (OBC), OH&S regulations, and CSA standards, ensuring that all field-installed steel components meet safety, quality, and compliance requirements for commercial facilities.

Field services & on-site solutions

What We Build

Mobile welding and on-site fabrication services focused on integrating, modifying, and repairing steel components directly within active commercial and industrial environments.

On-Site Structural Modifications

Field welding for adjustments, reinforcements, and alterations to existing steel structures without dismantling or relocation.

Equipment Supports & Field-Fit Brackets

On-site fabrication and installation of custom supports, brackets, and connection plates to match real-world site conditions.

Safety Railings & Guards (Field Installed)

Mobile fabrication and welding of handrails, guardrails, and protective barriers where shop-fabricated systems are not feasible.

Stairs, Landings & Access Elements (Modifications)

On-site welding for stair adjustments, landings, transitions, and access components integrated into existing structures.

Structural Repairs & Reinforcement Welding

Repair of cracked welds, damaged steel members, and load-bearing components identified during inspections or renovations.

Integration with Existing Steel & Equipment

Precision field fabrication to connect new steel elements to legacy structures, machinery, or building frameworks.

Materials & Styles

Materials & Field Application Methods

Materials and welding methods selected for on-site work must accommodate variable site conditions, access limitations, and integration with existing steel.

Material

On-Site Welding Method

Typical Field Applications

Carbon Steel

Stick (SMAW), MIG

Structural modifications, equipment supports, and reinforcements

Stainless Steel

TIG, MIG

Food-grade structures, handrails, and clean environments

Aluminum

TIG, MIG

Lightweight frames, brackets, and access components

Galvanized Steel

Stick (with prep)

Repairs to guards, railings, and exterior structures

Mixed Materials

Process-specific

Integration with existing steel and machinery

Key considerations

Engineering, safety & site conditions

Mobile welding and on-site fabrication require careful coordination with engineering requirements and active job sites.

1. Structural Integrity & Load Transfer

Field welds and connections must maintain original load paths and structural performance.

2. Site Access & Safety Planning

Work is performed in operational environments requiring controlled access, hot-work permits, and safety coordination.

3. Code Compliance

All on-site welding aligns with Ontario Building Code (OBC), OH&S regulations, and applicable CSA standards.

4. Fit-Up Accuracy

Precision measurements and alignment are critical when integrating new steel into existing structures.

Gallery

Field Fabrication in Action

Examples of mobile welding and on-site fabrication projects completed within active commercial and industrial facilities.

FAQ

On-site Welding Questions

When is mobile welding preferred over shop fabrication?

When steel components must be modified, repaired, or integrated directly into existing structures without removal.

Yes. All work is performed to OBC, OH&S, and CSA requirements by certified welders.

Yes, with proper safety planning, isolation, and coordination with site management.

Carbon steel, stainless steel, and aluminum, depending on access and project requirements.

Yes. On-site welding is commonly used to address urgent structural or equipment-related issues.

For projects requiring custom-fabricated steel components installed or modified on-site, explore our Equipment Supports and Steel Brackets services. Browse all services on our Commercial Structural Steel Fabrication page.

Applications

Where on-site Services are Used

Equipment supports and steel brackets are used wherever mechanical, electrical, or industrial equipment must be securely mounted, stabilized, or isolated within commercial environments.

Typical applications include:

  • Structural retrofits and steel reinforcements
  • Equipment installation and support integration
  • Safety railings, guards, and access systems
  • Stair, landing, and platform modifications
  • Emergency repairs and time-sensitive field work

Regulatory Standards & References

Mobile welding and on-site steel fabrication services are performed to safely integrate, modify, and repair structural steel components directly within active commercial and industrial facilities, in accordance with applicable Ontario and Canadian regulations. All field welding and fabrication activities align with the Ontario Building Code (OBC), Occupational Health and Safety Act (OHSA), and relevant CSA Group standards governing welded steel construction and site safety. All welding is carried out by CWB-certified welders, ensuring compliance, structural integrity, and consistent quality for commercial projects.

Authoritative references:

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