Built to spec
Built to your engineered drawings, survey, and the real site conditions, not a one-size-fits-all approach forced to fit.
Commercial & Heavy-Civil Construction
Commercial Concrete Contractor
Harrowgate Group is a commercial and heavy-civil contractor that performs commercial concrete work, including slabs, foundations, parking lots, sidewalks, and patios, for developers, property managers, and contractors across the GTA and Ontario.
- Licensed, Insured & WSIB-Covered
- 20 Years in Business
Get a Quote
Tell us what you need and we’ll get you a quote. Licensed, insured & WSIB-covered · Free, no-obligation quote & on-site assessment.
Get a Quote
Licensed, insured & WSIB-covered · Free, no-obligation quote & on-site assessment.
20 Years in Business
Licensed, Insured & WSIB-Covered Completed to code & Ontario requirements Completed on site and built to the drawings Performed & installed on site across Ontario
Why Harrowgate Group
What to expect from commercial concrete contractor
Made to last
Durable materials and methods chosen for the load, traffic, and environment on site.
Quote-ready
Send specs, drawings, or photos and get a free, no-obligation site visit and estimate with no guesswork.
Code-conscious
Installation and site work completed in accordance with Ontario requirements.
Our Process
How the commercial concrete construction process works
Local Context
A closer look at commercial concrete contractor
Scope
Understanding commercial concrete contractor
Which concrete system fits the application?
Concrete is selected and detailed by structural demand, exposure, flatness, finish, movement, and construction access. Foundations and suspended slabs depend on engineered reinforcement, industrial floors depend on subgrade and joint control, exterior flatwork needs freeze-thaw and salt resistance, and repairs require removal to sound material with compatible preparation and placement.
Foundations and structural concrete. Footings, foundation walls, grade beams, columns, suspended slabs, equipment bases, and containment structures follow structural drawings for geometry, reinforcement, concrete class, construction joints, waterstops, embeds, and testing. Form pressure, placing access, consolidation, and stripping sequence are planned with the design.
Slabs-on-ground and industrial floors. Performance starts with prepared subgrade, granular base, vapour control where specified, reinforcement or fibres, load-transfer details, and a coordinated joint plan. Placing sequence, strike-off method, finishing timing, flatness requirements, curing, and early traffic are established before the first truck arrives.
Exterior site concrete. Sidewalks, curbs, ramps, loading aprons, pads, stairs, and parking areas require drainage, slip-resistant finish, accessible geometry, durable edges, and a concrete exposure class suited to freeze-thaw cycles and deicing chemicals. Air entrainment and curing are controlled, not judged by appearance after placement.
Repair and replacement. Local delamination, spalls, corrosion, failed joints, settlement, and impact damage are investigated before repair limits are chosen. Partial-depth repair, full-depth replacement, formed repair, crack injection, overlay, or structural strengthening are different methods. Bonding new material over unsound or contaminated concrete produces a thin cover over the original failure.
Architectural and specialty finishes. Polished, coloured, exposed-aggregate, hard-trowelled, broomed, or coated surfaces need mock-ups, material compatibility, consistent batches, controlled finishing, and protection from later work. Appearance requirements do not override air, curing, or structural requirements.
How Harrowgate builds commercial concrete
Step 1, review the pour as a complete system. Harrowgate coordinates structural, architectural, civil, mechanical, electrical, and equipment drawings. We resolve dimensions, elevations, blockouts, slopes, sleeves, anchor bolts, waterstops, cast-ins, edge details, finish, construction joints, testing, access, and the sequence of adjacent work.
Step 2, prepare bearing and forms. Excavation or slab subgrade is brought to the required condition, unsuitable material is corrected, and granular layers are placed and compacted. Forms are braced for wet-concrete pressure and checked for line, grade, dimensions, chamfers, release agent, cleanliness, and leak paths.
Step 3, place reinforcement and embeds. Reinforcing steel is installed to the drawings with specified cover, laps, supports, dowels, couplers, and congestion clearances. Mesh is chaired rather than left on the base to be pulled upward during placement. Sleeves, plates, bolts, drains, conduits, and waterstops are fixed against movement.
Step 4, complete the pre-pour hold point. Harrowgate verifies approvals, formwork, reinforcing, embeds, access, concrete mix, quantity, truck cycle, pump or chute reach, backup equipment, testing, weather, curing materials, finishing tools, lighting, washout, and protection. Concrete is not ordered into unresolved congestion or an unready base.
Step 5, place, consolidate, and finish. Delivery tickets and discharge time are reviewed, samples are taken under the testing plan, and unauthorized water is not added to make finishing easier. Concrete is deposited near its final position, consolidated without displacing reinforcement, struck to elevation, and finished when bleed-water and setting conditions permit.
Step 6, cure, joint, protect, and verify. Curing begins promptly using the specified wet, sheet, or compound method. Sawcuts are timed to control shrinkage without raveling. Temperature protection, reshoring, form removal, loading, coating, and opening follow the strength and specification requirements. Deficiencies and test results are tracked through closeout.
Every project starts with a review of the drawings, specifications, and site conditions. For structural work, that means the foundation plan, reinforcing schedule, and geotechnical bearing information. For parking lots, sidewalks, and patios, it means the grading plan, expected traffic, and joint layout. That review sets the formwork, reinforcing, and finishing approach before concrete is ordered.
Subgrade is prepared and compacted, granular base is placed where the application requires it, and forms are set to line, grade, and the planned joint layout. Reinforcing steel or wire mesh is placed and supported according to the design, with dowels, sleeves, and embedded items positioned before the pre-pour check. Concrete is placed continuously within each pour section, consolidated to eliminate voids, and finished to the specified surface, whether that is a broom finish for a walkway or a trowelled finish for an interior slab.
Joints are cut or tooled at the intervals the design calls for, so the concrete can control its own cracking rather than cracking randomly. Curing is applied promptly after finishing and maintained for the required period, and fresh concrete is protected from temperature extremes, foot traffic, and vehicle loading until it has reached adequate strength.
Harrowgate follows the same process on every project. We review the drawings or visit the site to scope the work, return a written quote, perform the forming, reinforcing, placing, and finishing to the design, and close out with a walkthrough and any required testing records.
Have drawings for commercial concrete contractor? Send them over and we will scope it.
FAQ
Commercial Concrete Contractor FAQ
What information does Harrowgate need to quote commercial concrete work?
Send the project drawings or a description of the scope, the site plan, expected traffic or loading, and any known subgrade or soil conditions. Harrowgate visits the site to confirm details before returning a written quote.
What makes concrete suitable for commercial traffic?
Commercial slabs and pavements are designed around axle loads, wheel paths, impact, abrasion, exposure, joint behaviour, and operating demands. Thickness or strength alone is not enough. Harrowgate follows the engineered base, reinforcement, load-transfer, concrete class, finish, curing, and opening requirements for the actual use.
Why does exterior concrete need air entrainment in Ontario?
Ontario winters put concrete through repeated freeze-thaw cycles and deicing salt exposure. Air entrainment creates microscopic voids that relieve pressure from freezing water, reducing scaling and spalling. Harrowgate specifies the appropriate air content for exterior exposure.
How soon can new concrete be used?
Foot traffic is typically possible within a few days, while vehicle traffic and heavier loads require the concrete to reach a higher strength, often one to four weeks depending on the mix and conditions. Harrowgate confirms timing based on the specific project and weather.
Can Harrowgate coordinate concrete with site grading and drainage?
Yes. Harrowgate performs excavation, drainage, and concrete work as one coordinated scope, so subgrade and finished grades are set correctly before concrete is placed.
What causes commercial concrete to crack?
Common causes include subgrade that was not properly compacted, joints spaced too far apart for the slab thickness, or concrete that was not cured properly after finishing. Harrowgate addresses each of these before and during placement to reduce cracking.
Does Harrowgate handle both structural and site concrete?
Yes. Harrowgate performs foundations, structural slabs, and exterior site concrete such as sidewalks, patios, and parking areas, so the whole concrete scope on a project is coordinated by one team.
How is a concrete mix selected for exterior Ontario work?
The project specification selects strength and exposure class based on saturation, freezing, chlorides, and structural use. CSA A23.1 requirements can govern air content, water-to-cementing-materials ratio, curing, and other durability controls. Harrowgate orders the specified class and verifies tickets and field tests instead of substituting a generic strength-only mix.
Why is curing as important as concrete strength?
Curing keeps moisture and temperature conditions favourable while cement hydration develops strength and a denser surface. A specified high-strength mix can still dust, craze, scale, or lose durability if it dries rapidly after finishing. Harrowgate prepares curing materials before placement and protects the completed surface from traffic and weather.
When should damaged concrete be repaired instead of replaced?
Repair is appropriate when deterioration is localized and the remaining concrete, reinforcement, support, geometry, and drainage can deliver the required performance. Replacement is usually more reliable where movement, widespread delamination, deep contamination, inadequate thickness, or failed subgrade affects the whole element. Investigation defines sound repair boundaries.
Still have a question about commercial concrete contractor? Ask our team directly.
Explore
Related Harrowgate services
Concrete Foundations, for structural foundations and load-bearing concrete
Commercial Concrete Slabs, for interior and exterior slab construction
Commercial Concrete Patios and Landings, for exterior amenity concrete
Concrete Parking Lots, for heavy-traffic paved surfaces
Concrete Repair Contractor, for repair and restoration of existing concrete
Our Work
View Our Projects See real projects across Toronto & Ontario
Commercial and heavy-civil construction delivered for developers, contractors, property managers, and municipalities.
Get a quote for commercial concrete contractor
Send drawings, a site plan, or a description of the scope. Harrowgate Group is licensed, insured, and WSIB-covered.
Licensed, Insured & WSIB-Covered, work managed and documented on every job
Send your project details
Tell us what you need and we’ll get you a quote. Licensed, insured & WSIB-covered · Free, no-obligation quote & on-site assessment.
Commercial Concrete Contractor Across the GTA
View all service areas →Harrowgate Group provides commercial concrete contractor, delivered and installed with quote-ready support across Toronto and surrounding Ontario communities.
