SHEET METAL · FABRICATION AND INSTALLATION
Sheet metal fabrication and installation services
Tailored solutions for commercial and institutional projects. Custom fabrication, certified welders for construction, repair, and maintenance scope, and mobile welding for on-site work — across Quebec and Ontario.
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- Certified specialistsSheet-metal workers, certified welders, fabricators, installers — across the in-house mechanical team.
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- Projects deliveredCommercial, industrial, and institutional mechanical scopes across Canada since 1927.
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- Offices across QC and ONLaval, Montréal, Toronto, Newmarket — one fabrication group, two provinces.
Sheet metal services
Installation, welding, custom fabrication
Sheet metal scope for commercial and institutional projects — fabrication, installation, welding, and quality control under one team.
Sheet metal installation
Seamless installation of custom-fabricated components, integrated into HVAC and plumbing systems. Certified technicians and installers ensure precise and efficient installation, with rigorous quality control on every piece.
Certified welders, shop and mobile
Licensed and experienced welders skilled in welding techniques for construction, repair, and maintenance. Mobile welding units equipped to provide on-site welding wherever shop fabrication is not feasible.
Custom fabrication
Custom sheet metal fabrication designed to meet specific project needs. Advanced fabrication capabilities create bespoke components that fit seamlessly into building systems, enhancing both form and function.
Quality assurance, on time
Rigorous quality control to guarantee every piece is installed to exacting standards. Focused on meeting deadlines without compromising on quality.
Why this team
Tailored design, advanced equipment, material versatility
The differentiators that define the sheet metal service on the Ontario side, retained as the team folds into Kolostat.
Tailored design
Work with the in-house team to design and fabricate custom sheet metal solutions that match project specifications precisely.
Advanced equipment
The fabrication shop uses the latest technology to ensure precise cuts and finishes, maintaining the highest standards of quality.
Material versatility
Work in a variety of metals — including stainless steel, aluminum, and galvanized steel — selecting the best material for each application.
Detailed workmanship
Attention to detail is paramount. Craftsmen ensure every weld and every assembly meets stringent quality and safety standards.
Who we work with
Schools, healthcare, government, commercial
Institutional and commercial client mix — school boards, municipalities, healthcare facilities, government offices, and property management firms.
Schools and education
School boards are part of the standard clientele on the Ontario side. Past projects include sheet metal scope on Whispering Pines Public School in Aurora and HVAC scope on Durham District School Board campuses.
Healthcare and long-term care
Sheet metal scope on healthcare facilities and long-term-care homes — past projects include OMNI Pleasant Meadows long-term-care home.
Government and public sector
Municipal, federal, and provincial mandates. Past projects include the King City Municipal Centre, East Gwillimbury Operations Centre, and Loafers Lake Recreation Centre.
Commercial and property management
Office towers, mixed-use, retail, and property management portfolios across Quebec and Ontario.
How we work
Spec, fabricate, install, verify
Spec
Review project drawings and site dimensions with the engineering team.
Fabricate
In-house shop produces ductwork, fittings, and assemblies to drawing.
Install
Same delivery org installs what it fabricates.
Verify
Final inspection and documentation matching what was actually built.
Sheet metal FAQ
What contractors and owners ask about this service
What materials do you work with?
Stainless steel, aluminum, and galvanized steel. Material selection is guided by the application — the best material for each project, rather than what happens to be in stock.
Can you handle on-site welding when shop fabrication is not feasible?
Yes. Mobile welding units are dispatched for on-site welding wherever the work requires it. Licensed welders, code-compliant procedures, attention to detail on every weld.
What welding scope do you cover — construction only, or also repair and maintenance?
All three. The welding team is skilled in techniques suitable for construction, repair, and maintenance projects. Same crew, different mandates.
How do you maintain quality across fabrication and install?
Rigorous quality control processes from fabrication through installation. Every piece installed to exacting standards; every weld meeting stringent quality and safety standards.
How does fabrication coordinate with the rest of the mechanical scope?
The fabrication shop sits inside the same in-house delivery org that handles HVAC installation, piping, controls, and commissioning. Fabrication, install, and engineering work on the same project schedule.
Request a quote
Tell us about your project
Submit right here — a Kolostat engineer will follow up to scope the work. Email or phone is required.
Get started
Have a sheet-metal scope to fabricate or install?
Custom fabrication, certified welders, and mobile welding — for commercial and institutional projects across Quebec and Ontario.









