Built to spec
Built to your engineered drawings, survey, and the real site conditions, not a standard package forced to fit.
Oil-Grit Separators are underground treatment devices installed to remove sediment, oil, and debris from stormwater runoff. Harrowgate Group self-performs the work to your engineered drawings, load, and finish, and completes it on site across North York, the GTA, and Ontario.
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.
Oil-Grit Separators are underground treatment devices installed to remove sediment, oil, and debris from stormwater runoff. In North York, Harrowgate Group takes on oil-grit separators end to end: the site is surveyed and scoped, the work is built and managed on site, and the project is completed to the engineered plan.
Most North York oil-grit separators jobs involve commercial sites, lots, and municipal drainage. Across North York, they solve treating stormwater to meet water quality requirements, and because no two sites are identical the scope is set per site, not a default.
Demand for oil-grit separators in North York (City of Toronto) comes mostly from commercial and office development, institutional and healthcare, transit-oriented development, and industrial lands. North York's Yonge-Sheppard and Consumers Road centres drive office, institutional, and transit-oriented commercial construction, with the Downsview lands opening major new development. Demand favours mid-rise and institutional site work along the subway and 401 corridors.
Most of it sits around the Yonge and Sheppard centres, Consumers Road business park, Downsview lands, and the 401 employment corridor. Clients such as developers, office and institutional owners, hospitals, and the City of Toronto drive much of the North York work, and no two projects carry the same scope or ground.
Because North York spans commercial and office development, institutional and healthcare, transit-oriented development, and industrial lands, oil-grit separators is never one-size: Harrowgate Group fits the method to the building type, age, and use on every project.
In North York, the work has to account for transit-corridor density, aging commercial stock needing retrofit, and servicing around active subway and 401 infrastructure. Harrowgate Group sets the methods, materials, and equipment for those exact conditions on every North York project, working to the site conditions and the engineered drawings rather than a regional default.
Programs slip when trades do not show. Harrowgate Group builds the North York oil-grit separators work itself, so mobilization, sequencing, and completion stay with one accountable team, with fast mobilization to get moving.
Harrowgate Group runs each North York project by the book, survey and layout from the drawings, locates and shoring where needed, the work built to spec, then compaction, finishing, and clean-up, with hold points checked before the next stage.
Harrowgate Group treats coordination as part of the build. On a North York oil-grit separators project, that means working from the engineers' and architects' drawings, looping in geotechnical and civil consultants where the ground demands it, and coordinating with city planners and inspectors, so the North York project is built to the approved design and passes the inspections that matter.
A typical North York oil-grit separators project pairs the work with local conditions: commercial sites, lots, and municipal drainage around the Yonge and Sheppard centres and clients like developers. Harrowgate Group tailors each project to the situation and documents it for the file. Harrowgate Group also serves nearby Toronto, Vaughan, Markham, so projects spanning the surrounding area stay with one team.
Each North York project is completed to its engineered spec, methods, materials, and load or compaction results set to the site and recorded, so what is built matches what was designed and approved.
What keeps Harrowgate Group busy with North York oil-grit separators: fast fast mobilization, licensed, insured, and fully WSIB-covered work, full documentation, and a team, with 20 years serving the area that knows the Yonge and Sheppard centres, Consumers Road business park, Downsview lands, and the 401 employment corridor firsthand.
Self-performed on site to the engineered drawings, coordinated with concrete, servicing, and the surrounding work, then a clean, documented finish.
The short version: Oil-Grit Separators are underground treatment devices installed to remove sediment, oil, and debris from stormwater runoff. For North York projects, it's built to the engineered drawings and the applicable codes, self-performed on site.
Yes, we respond across North York and the surrounding area. Response time is fast mobilization.
Across North York, the work concentrates around the Yonge and Sheppard centres, Consumers Road business park, Downsview lands, and the 401 employment corridor, each job scoped to its own conditions.
Mostly commercial and office development, institutional and healthcare, transit-oriented development, and industrial lands, Harrowgate Group serves developers, contractors, municipalities, and property owners across North York.
In North York, the work accounts for transit-corridor density, aging commercial stock needing retrofit, and servicing around active subway and 401 infrastructure, so the methods, materials, and equipment is matched to the site.
Stormwater treatment, matched to the North York site, not a one-size approach.
Harrowgate Group responds to North York with fast mobilization, covering the Yonge and Sheppard centres, Consumers Road business park, Downsview lands, and the 401 employment corridor and the surrounding area.
All of North York, the Yonge and Sheppard centres, Consumers Road business park, Downsview lands, and the 401 employment corridor and the surrounding neighbourhoods, plus nearby Toronto, Vaughan, Markham.
Yes, Harrowgate Group handles commercial and office development, institutional and healthcare, transit-oriented development, and industrial lands across North York, from focused scopes to full builds, each set to its own site and drawings.
Cost depends on the site conditions, the ground, the scope, and the engineered requirements, Harrowgate Group reviews the drawings and the site for each North York project and provides a clear, documented quote.
Yes, Harrowgate Group assesses North York oil-grit separators on site and provides a documented scope before any work begins.
Real knowledge of North York, the Yonge and Sheppard centres, Consumers Road business park, Downsview lands, and the 401 employment corridor, fast mobilization, work that is licensed, insured, and fully WSIB-covered, and full documentation on every project.
Harrowgate Group has served City of Toronto since 2006, 20 years of hands-on experience.
Harrowgate Group surveys and scopes it on site, builds the work to the engineered drawings and the applicable codes, and completes it to grade, handled by one accountable team across North York.
Yes, Harrowgate Group builds the work across North York and the surrounding area and manages it end to end, coordinating any engineers, consultants, and municipal approvals the project needs. We do the work, not just hand it off.
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 oil-grit separators, 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.