Every company has a beginning. Ours began with the determination of a 14-year-old boy in Zagreb, Croatia (then Yugoslavia), who had an ambition to build things with his hands and create a better future.
After learning metalworking from a neighbour in the mid-1960s, he began building spot welders by hand. Those early years shaped a lifelong approach to the trade — work hard, keep learning, and take pride in doing things properly.
Driven by opportunity, he eventually made his way to Paris, where he worked alongside his brother constructing boiler rooms and industrial mechanical systems throughout the city and the surrounding suburbs. The experience broadened his skills and exposed him to larger, more complex industrial projects before his journey continued to Canada.
After first settling in Montreal, he later moved to Toronto, where he purchased a small company known as Bruno Welding. The business provided cutting and welding services for the scrapyards and heavy industry around Toronto’s docklands. Over time, it evolved into International Mobile Welding Ltd., with an increasing focus on industrial piping, pressure welding, hot tapping, machining, millwrighting, and field services.
Today, International Mobile Welding is a second-generation family business. Alongside decades of practical trade experience, the second generation brings a background in Mechanical Engineering and the application of ASME and CSA standards, continuing to expand the company’s technical capabilities while staying true to the values it was built on.
Today we work throughout Toronto and the Greater Toronto Area, north into cottage country, and for customers on both sides of the border. More than fifty years later, those values remain much the same. The company has grown alongside Ontario’s industrial sector, adapting to new technologies, industries, and customer needs while maintaining a practical, hands-on approach to every project.
From a young tradesman building spot welders in Zagreb to a family business serving industry across Ontario, International Mobile Welding’s history has always been shaped by curiosity, hard work, and a willingness to embrace new opportunities.
Our workforce is built around certified trades, not general labour. Every project is staffed with people qualified for the specific system they are working on.
Our Nobleton shop provides over 6,000 square feet of fabrication space, letting us prefabricate large-scale mechanical, structural, and custom assemblies in a controlled environment. We build complete pump skids in house for Canadian and American customers — base frame, pumps, valves, and interconnecting pipework assembled and tested on the floor, then delivered as a single unit ready to set and connect. Prefabrication moves hours off your site, reduces trade congestion, and improves consistency, particularly on repetitive spool work and high-pressure assemblies.
We are a Canadian, family-run business that has spent five decades building a reputation on unparalleled service and quality. We would rather do the job right once than be the cheapest quote in the pile.
International Mobile Welding Ltd. holds the following authorizations with the Technical Standards and Safety Authority. Every one of them is verifiable on a TSSA public register.
| Certificate # | Certificate Type | Scope | Expires |
|---|---|---|---|
| QA-01697 | Power Piping Installation, ASME B31.1 | Shop & field | 21 December 2026 |
| QA-01698 | Process Piping Installation, ASME B31.3 | Shop & field | 21 December 2026 |
| QA-03667 | Refrigeration Piping Installation, ASME B31.5 | Shop & field | 21 December 2026 |
| QA-01699 | Boilers & Pressure Vessels Repair / Alteration | Field only | 21 December 2026 |
| QA-03336 | Hot Tapping and Line Stopping | Shop & field | 21 December 2026 |
| QA-10894 | Alternate Piping Process (ALT) | Alternate Process for Pressure Piping Inspection in Ontario | 21 December 2026 |
Verify these on the TSSA register: Find a Certificate of Authorization Holder — International Mobile Welding Ltd. Registered to 5635 King Rd. RR 3, Nobleton, Ontario L0G 1N0.
| Authorization # | Registration Type | Status | Expires |
|---|---|---|---|
| FS R0076614627 | Fuels Contractor Registration | Active | 30 November 2026 |
Effective 1 December 2025. Registered fuels contractors are the only businesses legally authorized to carry out fuels work in Ontario. Verify on the TSSA register: TSSA registered fuels contractors — International Mobile Welding Ltd.
Our ALT certificate authorizes the Alternate Process for Pressure Piping Inspection in Ontario. In practice it means qualifying pressure piping installations under our own certified quality program rather than routing every joint through individual field inspection — which removes a scheduling dependency that routinely holds projects up. Fewer inspection bottlenecks, the same code compliance, and full documentation for your records.
Tell us about your system and we will tell you honestly whether we are the right fit.