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 King, 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. Harrowgate Group treats each King oil-grit separators project as its own scope: the site conditions, the engineered plan, and the sequencing set before a crew mobilizes.
Most King oil-grit separators jobs involve commercial sites, lots, and municipal drainage. The recurring drivers are treating stormwater to meet water quality requirements, each King project is scoped to its own situation rather than a standard package.
What drives oil-grit separators in King (York Region) is aggregates and rural industry, agricultural operations, institutional and recreational, and highway-corridor lands. King Township's rural and aggregate base along the 400 corridor drives site servicing, stormwater, and heavy-civil work on constrained Greenbelt and moraine lands. Demand skews to rural-edge servicing, grading, and institutional site development.
Most of it sits around the Nobleton and Schomberg areas, the 400 corridor, and King City employment lands. Much of the King work is for aggregate operators, institutions, and the Township of King, each needing the job built to the drawings, to code, and documented.
The mix in King, aggregates and rural industry, agricultural operations, institutional and recreational, and highway-corridor lands, means each oil-grit separators project starts from the specific structure, not a template, when Harrowgate Group scopes it.
King conditions shape the response: Greenbelt and Oak Ridges Moraine constraints, rural servicing and stormwater, and well and septic sites. Each King project has the methods, materials, and equipment chosen for that environment, matched to the site instead of a one-size approach.
Harrowgate Group keeps King oil-grit separators on schedule, from quote to crew on site with fast mobilization, then built to grade and documented through to completion.
A King oil-grit separators project moves through survey, site prep, the built work, and restoration, each step verified against the engineered plan and the applicable codes before the crew moves on.
Whatever professionals a King oil-grit separators project requires, Harrowgate Group works with them: engineers, architects, surveyors, geotechnical and environmental consultants, and city planning and inspection staff. The crew builds to the engineered drawings and coordinates the inspections and approvals, so nothing on the King project falls between design, permit, and field.
On a typical King project the oil-grit separators work covers commercial sites, lots, and municipal drainage around the Nobleton and Schomberg areas and clients like aggregate operators, each scoped to its own situation and recorded for the file. Harrowgate Group also serves nearby Vaughan, Aurora, Bradford, so projects spanning the surrounding area stay with one team.
Harrowgate Group builds King oil-grit separators to code and to drawing: sequenced correctly, compacted or finished to the specified result, and documented so owners, GCs, engineers, and inspectors get exactly what was agreed.
Across King, owners call Harrowgate Group for oil-grit separators for a simple reason: licensed, insured, and fully WSIB-covered work, fast mobilization, and a crew that actually knows the Nobleton and Schomberg areas, the 400 corridor, and King City employment lands and how local buildings fail.
The short version: Oil-Grit Separators are underground treatment devices installed to remove sediment, oil, and debris from stormwater runoff. For King projects, it's built to the engineered drawings and the applicable codes, self-performed on site.
Yes, we respond across King and the surrounding area. Response time is fast mobilization.
Across King, the work concentrates around the Nobleton and Schomberg areas, the 400 corridor, and King City employment lands, each job scoped to its own conditions.
Mostly aggregates and rural industry, agricultural operations, institutional and recreational, and highway-corridor lands, Harrowgate Group serves developers, contractors, municipalities, and property owners across King.
In King, the work accounts for Greenbelt and Oak Ridges Moraine constraints, rural servicing and stormwater, and well and septic sites, so the methods, materials, and equipment is matched to the site.
Stormwater treatment, and in King, spec'd to the load and environment on site.
Harrowgate Group responds to King with fast mobilization, covering the Nobleton and Schomberg areas, the 400 corridor, and King City employment lands and the surrounding area.
All of King, the Nobleton and Schomberg areas, the 400 corridor, and King City employment lands and the surrounding neighbourhoods, plus nearby Vaughan, Aurora, Bradford.
Yes, Harrowgate Group handles aggregates and rural industry, agricultural operations, institutional and recreational, and highway-corridor lands across King, 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 King project and provides a clear, documented quote.
Yes, Harrowgate Group assesses King oil-grit separators on site and provides a documented scope before any work begins.
Real knowledge of King, the Nobleton and Schomberg areas, the 400 corridor, and King City employment lands, fast mobilization, work that is licensed, insured, and fully WSIB-covered, and full documentation on every project.
Harrowgate Group has served York Region 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 King.
Yes, Harrowgate Group builds the work across King 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.