Built to spec
Built to your engineered drawings, survey, and the real site conditions, not a standard package forced to fit.
Harrowgate Group self-performs post-tension concrete construction across the GTA and Ontario for developers, general contractors, structural engineers, and parking or building owners. The field package is planned around shop drawing approval, tendon supply, formwork cycle, pre-pour coordination, concrete release strength, stressing sequence, elongation review, reshoring, pour-strip timing, and closure of stressing pockets, with the work executed and managed by Harrowgate.
Tell us what you need and we’ll get you a quote. Licensed, insured & WSIB certified · Free, no-obligation quote & on-site assessment.
Licensed, insured & WSIB certified · Free, no-obligation quote & on-site assessment.
Built to your engineered drawings, survey, and the real site conditions, not a standard package forced to fit.
Heavy-duty steel and finishes chosen for the load, traffic, and environment on site.
Send specs, drawings, or photos and get a free, no-obligation site visit and estimate with no guesswork.
Installation and site work completed in accordance with Ontario requirements.
Post-tension concrete construction uses high-strength steel tendons stressed after concrete reaches a specified strength to compress slabs, beams, transfer elements, or foundations. Harrowgate Group self-performs and manages concrete field activities across the GTA and Ontario, coordinating tendon installation, embeds, placement, stressing access, repairs, and records to the engineer's design.Post-tension work is a tightly sequenced structural system.
Clean site work and a tidy finish, coordinated with your engineers, the other trades, and the surrounding site conditions, built to the engineered drawings and the applicable codes.
We coordinate shop drawings with columns, walls, slab openings, sleeves, embeds, mechanical penetrations, edge forms, stressing ends, dead ends, pour strips, crane loads, and forming cycles. Tendons, chairs, anchors, reinforcement, ducts where applicable, and blockouts are installed to profile and secured against displacement, with accessible stressing tails and protected anchorage components.
The governing document set is the 2024 Ontario Building Code, CSA A23.3, CSA A23.1 and A23.2, sealed structural and post-tension shop drawings, approved stressing procedures, and engineer-defined construction loading limits. Post-tension structural design is governed by the 2024 Ontario Building Code, CSA A23.3, sealed structural documents, and approved post-tension shop drawings.
The price responds to tendon quantity and profile, anchorages, stressing-end access, slab geometry, reinforcement congestion, pour sequence, forming cycles, concrete volume, testing, stressing mobilizations, repairs, and record requirements. Uncontrolled coring can sever a live tendon and release stored energy. Completed layouts, scanning, exclusion procedures, and engineer approval govern every later penetration.
The controlling schedule factors are shop drawing approval, tendon supply, formwork cycle, pre-pour coordination, concrete release strength, stressing sequence, elongation review, reshoring, pour-strip timing, and closure of stressing pockets. Tendons, chairs, anchors, reinforcement, ducts where applicable, and blockouts are installed to profile and secured against displacement, with accessible stressing tails and protected anchorage components.
Yes. On additions and parking work, we isolate stressing zones, control access below and beyond stressing ends, coordinate deliveries, and maintain approved routes around forming and reshoring areas. Uncontrolled coring can sever a live tendon and release stored energy. Completed layouts, scanning, exclusion procedures, and engineer approval govern every later penetration.
We check tendon identification, profile, supports, anchorage and reinforcement, sheathing condition, concrete test results, stressing sequence, jack data, measured elongations, engineer review, tail cutting, corrosion protection, and pocket closure. Construction loading, reshoring, stripping, pour-strip closure, temporary openings, and later penetrations are controlled by the engineer because prestress changes load distribution and slab behaviour.
Provide structural and post-tension drawings, slab geometry, tendon quantities, concrete and stressing criteria, forming cycle, access and crane plans, construction loading, testing responsibilities, and target pour dates. Tendons, chairs, anchors, reinforcement, ducts where applicable, and blockouts are installed to profile and secured against displacement, with accessible stressing tails and protected anchorage components.
Commercial and heavy-civil construction, self-performed for developers, contractors, property managers, and municipalities.
Send drawings, a site plan, or a description of the scope. Harrowgate Group is licensed, insured, and WSIB certified.
Licensed, Insured & WSIB Certified · Self-performed and documented on every job
Tell us what you need and we’ll get you a quote. Licensed, insured & WSIB certified · Free, no-obligation quote & on-site assessment.
Harrowgate Group provides post-tension concrete, delivered and installed with quote-ready support across Toronto and surrounding Ontario communities.
Companies We've Worked With
Harrowgate Group delivers commercial and heavy-civil construction for developers, contractors, institutions, municipalities, and property groups across Ontario.