Certified Heavy Equipment Welding Services
Heavy equipment does not stop working on a convenient schedule. CanaWelding.ca provides certified on-site heavy equipment welding across the GTA, with the structural background to handle repairs that go beyond basic fabrication. We come to your site, yard, or facility — fully equipped and ready to work on arrival.
- On-site heavy duty equipment welding for construction, industrial, and commercial fleets
- CWB-certified welders with direct structural steel erection experience
- MIG, TIG, and stick welding on excavators, loaders, cranes, trailers, and structural steel frames
- Coverage across Toronto, Mississauga, Brampton, Vaughan, Markham, and the full GTA
- Owned and operated by Canadian Structures — CanaStruct Inc., a fully HCRA-licensed builder
What Is Heavy Equipment Welding?
Heavy equipment welding is the repair, reinforcement, and fabrication welding performed on large construction machinery, industrial equipment, and heavy-duty commercial vehicles and structures. This includes excavators, backhoes, bulldozers, graders, loaders, cranes, trailers, flatbeds, industrial machinery frames, and conveyor systems. The common thread is high-stress, high-load steel components that operate under cyclic loading and require welding that holds under real working conditions.
Heavy duty equipment welding differs from general repair welding in both the scale and the material demands. High-strength and hardened steels — AR400, Hardox, T1, and quenched-and-tempered grades — require specific filler metals, preheat procedures, and process controls. The best welder for heavy equipment understands how to diagnose a fatigue crack versus an impact fracture, how to prepare a joint on a curved boom arm or bucket floor, and which welding process will hold under the cyclic loading that heavy equipment endures in daily operation.
Related terms you may encounter when searching for this work include: heavy equipment welder Toronto, on-site machinery welding GTA, mobile equipment repair welder, AR400 welding contractor, excavator boom repair Toronto, and certified heavy duty welding services.
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CanaWelding Inc carries full commercial general liability insurance and WSIB coverage. Every project is performed by qualified, supervised tradespeople
Types of Heavy Equipment Welding We Provide
Construction Equipment Repair
We repair cracked booms, bucket arms, frames, and structural components on excavators, backhoes, bulldozers, and graders at your job site. On-site welding eliminates the cost and delay of heavy equipment transport to a shop — especially critical when a machine failure is holding up an entire crew. Our welders arrive with the correct filler metals and preheat equipment for high-strength steel repairs in field conditions. Available across the GTA from Toronto to Brampton to Oshawa.
Industrial Equipment and Machinery Welding
Production equipment, conveyor frames, press components, storage racks, and industrial machinery require heavy duty welding expertise that goes beyond standard fabrication. We respond to industrial facilities across Mississauga, Brampton, Vaughan, and the GTA with mobile units equipped for structural-grade repair welding on high-strength steel assemblies. Downtime costs real money — we dispatch to your facility and weld it back into service on site.
Trailer and Heavy Vehicle Frame Welding
Flatbeds, lowboys, dump trailers, and heavy haulers take structural punishment. We weld trailer frames, cross-members, kingpin plates, and outrigger components at your yard or staging location. Frame cracks do not require towing to a shop — our mobile welding units reach fleet yards and staging areas throughout the GTA, and our CWB-certified welders execute structural frame repairs to the standard the component demands.
Crane and Lifting Equipment Welding
Crane booms, outrigger pads, counterweight frames, and rigging components demand structural-grade welding and proper documentation. Our CWB-certified welders bring the process knowledge required for lifting equipment repairs — correct material identification, preheat application, and post-weld inspection. Where documentation is required for equipment recertification or inspection in Ontario, we provide it.
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CanaWelding Inc carries full commercial general liability insurance and WSIB coverage. Every project is performed by qualified, supervised tradespeople
Heavy Equipment Welding: On-Site vs. Shop Repair
Why On-Site Welding Wins for Most GTA Equipment Failures
When heavy equipment develops a weld failure or structural crack, the default assumption is often to tow or truck the machine to a shop. But for most failures in the GTA — a cracked excavator boom, a broken trailer cross-member, a failed industrial frame weld — the total cost of on-site mobile welding, including travel, is lower than the combined cost of transport, shop time, and lost production while the machine is off-site.
CanaWelding.ca dispatches fully equipped mobile welding units with the process capability to handle high-strength and hardened steel repairs in the field. Our mobile units carry MIG, TIG, and stick welders, correct filler metals for AR400 and Hardox grades, preheat equipment, and grinding tools. The repair comes to you — not the other way around.
When Shop Repair Makes More Sense
Shop repair is appropriate when the component requires disassembly that cannot be completed in the field, when the repair requires specialized fixtures or post-weld heat treatment only available in a controlled facility, or when the component must be removed for third-party inspection under a regulated certification process. For these cases, we advise on the right path and coordinate with your equipment supplier or maintenance team.
For the large majority of heavy equipment failures across the GTA — construction equipment down on an active site, trailer frames cracked at a yard, industrial machinery with a broken structural weld — on-site repair is faster, less expensive, and puts the machine back into service the same day. If you are not sure whether on-site repair is viable, call us and describe the failure. We will give you an honest assessment before dispatching.
Service Areas we Serve
CanaWelding.ca provides heavy equipment welding at job sites, industrial facilities, and commercial yards across the Greater Toronto Area. Our mobile welding units are equipped for heavy duty work in field conditions — no shop required, no transport delay.
We currently serve:
- Toronto (Downtown)
- Etobicoke
- Scarborough
- North York
- Mississauga
- Brampton
- Oakville
- Burlington
- Vaughan
- Richmond Hill
- Newmarket
- Markham
- Ajax / Pickering
- Oshawa
Frequently Asked Questions
Who owns CanaWelding.ca and why does it matter for heavy equipment welding?
CanaWelding.ca is owned and operated by Canadian Structures — CanaStruct Inc., a fully HCRA-licensed home building and structural framing company in Ontario. The HCRA license is a government-regulated credential under the Ontario New Home Construction Licensing Act, requiring enforced standards of competency, mandatory insurance, and financial accountability. CanaStruct performs structural steel erection and installation across residential, commercial, and industrial projects throughout the GTA. Our welders work in that structural environment daily. When they assess a heavy equipment repair, they bring genuine high-strength steel knowledge to the job — not just trade-level familiarity with running a weld bead.
What types of heavy equipment do you weld on site?
We work on excavators, backhoes, bulldozers, graders, loaders, cranes, compactors, trailers, flatbeds, lowboys, dump trailers, industrial machinery frames, conveyor systems, and other heavy steel structures. If it is made of structural or high-strength steel and requires welding in the field, our crew is equipped for it. Call us with the equipment type and failure description and we will confirm suitability before dispatching.
What makes a welder the right choice for heavy equipment repair?
The best welder for heavy equipment repair must be able to identify the steel grade, select the correct filler metal and process, apply preheat where required by material specification, and execute multi-pass welds on thick sections under field conditions. CWB certification is the baseline requirement. Experience on structural steel — where the same material knowledge and process discipline apply — is what separates welders who can perform reliable heavy equipment repairs from those who cannot. CanaWelding’s background in structural steel erection through CanaStruct provides that foundation.
How much does heavy equipment welding cost in the GTA?
Costs depend on the type and severity of the repair, the steel grade involved, and the location within the GTA. Minor repairs on standard structural steel components typically range from $400 to $1,200 on site. Larger structural repairs on crane components, excavator booms, or industrial machinery frames are quoted on a job-specific basis after site assessment. In most cases the total cost of on-site repair — including travel — is significantly lower than transporting the equipment to a shop and absorbing the associated downtime. We provide a written quote before any work starts.
Can you weld high-strength and hardened steels like AR400 or Hardox in the field?
Yes. Our welders have experience with wear-resistant and high-strength steels including AR400, AR500, Hardox, and T1 grades commonly used in heavy equipment buckets, wear plates, and structural components. These materials require specific filler selections, preheat procedures, and process controls that our team applies correctly in field conditions. Using the wrong filler or skipping preheat on these materials causes weld failures — often delayed ones that appear after the machine returns to service.
Do you provide documentation for heavy equipment welds that require inspection?
Yes. For structural components, crane and lifting equipment repairs, and other regulated applications, we provide weld documentation as required. Our CWB-certified welders follow applicable weld procedures and can produce the paperwork required for equipment recertification or inspection in Ontario. If your application has specific documentation requirements, let us know before we dispatch and we will confirm our capability for your specific need.
Do you perform heavy equipment welding in Mississauga and Brampton?
Yes. Mississauga and Brampton are two of our most active service areas for heavy equipment welding. Both cities have significant industrial and construction activity, and we respond to equipment failures at job sites, yards, and industrial facilities throughout both cities regularly. Call (647) 641-0550 and we will confirm availability and dispatch time for your location.
Which areas does CanaWelding serve for heavy equipment welding?
CanaWelding provides on-site heavy equipment welding across the Greater Toronto Area, including Toronto, Etobicoke, Scarborough, North York, Mississauga, Brampton, Oakville, Burlington, Vaughan, Richmond Hill, Newmarket, Markham, Ajax, Pickering, and Oshawa. We travel to your site with all required equipment. If your machine is down and you are in the GTA, call us — we are likely already working nearby.
Ready to Put Your Equipment Back to Work? Let CanaWelding Come to You.
CanaWelding.ca brings CWB-certified welders, high-strength steel expertise, and fully equipped mobile units to heavy equipment repair jobs across Toronto and the Greater Toronto Area. Whether your excavator boom is cracked on an active site, a trailer frame has failed at a yard, or industrial machinery is down at a Mississauga facility — we weld it on site, the same day, without a shop drop-off. Equipment downtime costs money every hour. Connect with our team now to confirm availability and get your machine back in service.