Full-scope concrete and structural work, foundations, slabs, rebar, and steel, for commercial, and industrial projects across Ontario.
GSSL provides a complete structural concrete and steel scope for commercial and industrial projects across Ontario. Whether you need a standalone concrete footing installation, a full slab-on-grade for a warehouse or logistics facility, or a turnkey structural package from permit through steel erection; our crews deliver to spec, to code, and on schedule. Every service is available as a standalone scope or as part of a coordinated structural package.
Our Design and Permit Services Include: Structural Design and Engineering Consultation
From membrane applications and damp roofing to weeping tile installations and backfill strategies
We build reinforced concrete foundation walls and structural columns
Whether it’s a warehouse, plant, or logistics hub, our concrete solutions provide a strong, level foundation built to perform.
We deliver steel and reinforcement services that form the backbone of every structurally sound build.
We are experts in the manufacture and installation of rebar for columns, walls, footings, and slabs
GSSL works alongside general contractors, developers, and architects on the most demanding structural concrete and steel projects in Ontario. From ground-up industrial builds in the GTA to commercial foundations in Hamilton, Ottawa, London, Kitchener-Waterloo, and beyond; our field crews and in-house design team handle the full structural scope.
Heavy-duty concrete structures for warehouses, manufacturing plants, logistics hubs, and distribution centres across Ontario. Industrial slab construction, machine pads, equipment pads, loading dock construction, and structural foundation systems; all to industrial-grade engineering specifications, wherever your project is located.
From retail plazas and office buildings to mixed-use developments and multi-residential podiums, GSSL delivers reinforced concrete foundations, slabs, columns, and structural steel for commercial projects across Ontario, including the GTA, Hamilton, London, Ottawa, Kitchener-Waterloo, and surrounding regions.
Custom concrete formwork for walls, slabs, columns, beams, and foundation systems. We design, supply, and strip formwork for complex commercial and industrial pours anywhere in Ontario, ensuring dimensional accuracy to architectural and structural drawings.
Slab-on-grade and elevated slab systems for commercial and industrial applications, including slab types: monolithic, post-tensioned, precast, and slab-on-grade. Finishes: smooth trowel, broom finish, exposed aggregate, and polished concrete. Available on projects throughout Ontario.
(416) 785-7838
Grand Structural Services Ltd. (GSSL) is a Toronto-based concrete and structural contractor serving commercial, and industrial projects across Ontario. From warehouses, manufacturing plants, and retail builds to additions, and complex foundations, we deliver the full structural scope: footings and piers, foundation walls and columns, slabs and flat works, structural steel, and rebar installation, with in-house structural design and permit services. The capacity and code compliance commercial projects demand, applied to every job.
A showcase of our most notable projects, highlighting GSSL’s commitment to quality craftsmanship, innovative design, and durable structural solutions across Toronto and the GTA
We believe that architecture is not just about buildings; it’s about creating spaces that inspire, nurture, and elevate.
1558 Avenue Road - Unit 2 Toronto, ON M5M 3X5
Monday - Friday : 8 AM - 4 PM
Saturday - Sunday : Closed
(416) 785-7838
Info@gssl.ca
We specialize in concrete and structural steel solutions, including footings, foundation walls, slabs & flatwork, rebar installation, and custom steel structures for commercial, and industrial projects across the GTA.
GSSL works on commercial, industrial, and residential projects across Ontario. On the commercial and industrial side, we partner with general contractors, developers, and architects on warehouses, plants, retail, office, institutional, and multi-residential podium builds. On the residential side, we take on custom homes, large additions, and complex foundation work. We bring the same engineering rigor, code compliance, and project discipline to every job regardless of scale.
We proudly serve Toronto and the Greater Toronto Area (GTA), including Mississauga, Vaughan, Markham, Richmond Hill, Scarborough, North York, and surrounding regions.
All our work follows Ontario Building Code standards, engineered specifications, and municipal requirements. We also partner with certified trades and use high-grade materials for long-lasting results.
Yes. We offer detailed estimates based on project scope, site conditions, and structural requirements. Contact us with your drawings or project details, and we’ll provide a tailored quote.
Yes. Our services are turnkey—covering labour, formwork, reinforcement, concrete supply, and steel fabrication/installation as required.
We provide a variety of finishes, including smooth trowel, broom finish, exposed aggregate, and polished surfaces depending on your project’s design and functional needs.
Start times depend on project scope, permitting, and scheduling. Typically, smaller projects can be scheduled within a few weeks, while larger builds may require more lead time
Yes. We carry full liability insurance, WSIB coverage, and all team members meet safety certification requirements for working on construction sites.
