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 Clarington, 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 builds oil-grit separators across Clarington to the engineered drawings and the applicable codes, surveyed, built on site, and completed to grade for the real conditions.
Most Clarington oil-grit separators jobs involve commercial sites, lots, and municipal drainage. Across Clarington, 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.
What drives oil-grit separators in Clarington (Durham Region) is energy and nuclear, logistics and industrial, aggregates, and greenfield employment development. Clarington combines the Darlington energy lands with fast 407-driven greenfield industrial growth around Bowmanville and Courtice. Work centres on energy-site civil, greenfield servicing, mass excavation, and roadworks.
The work concentrates around the Bowmanville and Courtice areas, the energy lands, the 401/407 corridor, and the Clarington employment lands. Clients such as energy operators, developers, aggregate operators, and the Municipality of Clarington drive much of the Clarington work, and no two projects carry the same scope or ground.
Clarington buildings vary widely, energy and nuclear, logistics and industrial, aggregates, and greenfield employment development, and the right oil-grit separators approach changes with each. Harrowgate Group reads the property before it scopes the project.
What shapes a Clarington project is nuclear and energy-site standards, 407-extension servicing, and rural-to-industrial greenfield grading. Harrowgate Group sets the methods, materials, and equipment for those exact conditions on every Clarington project, working to the site conditions and the engineered drawings rather than a regional default.
Harrowgate Group keeps Clarington oil-grit separators on schedule, from quote to crew on site with fast mobilization, then built to grade and documented through to completion.
A Clarington 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 Clarington 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 Clarington project falls between design, permit, and field.
On a typical Clarington project the oil-grit separators work covers commercial sites, lots, and municipal drainage around the Bowmanville and Courtice areas and clients like energy operators, each scoped to its own situation and recorded for the file. Harrowgate Group also serves nearby Oshawa, Whitby, Port Hope, so projects spanning the surrounding area stay with one team.
Harrowgate Group builds each Clarington project to a clear scope: the right methods, the right materials, and results checked against the plan, documented so it holds up to inspection and the project record.
Across Clarington, 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 Bowmanville and Courtice areas, the energy lands, the 401/407 corridor, and the Clarington employment lands and how local buildings fail.
Oil-Grit Separators are underground treatment devices installed to remove sediment, oil, and debris from stormwater runoff. For Clarington projects, it's built to the engineered drawings and the applicable codes, self-performed on site.
Yes, we respond across Clarington and the surrounding area. Response time is fast mobilization.
Across Clarington, the work concentrates around the Bowmanville and Courtice areas, the energy lands, the 401/407 corridor, and the Clarington employment lands, each job scoped to its own conditions.
Mostly energy and nuclear, logistics and industrial, aggregates, and greenfield employment development, Harrowgate Group serves developers, contractors, municipalities, and property owners across Clarington.
In Clarington, the work accounts for nuclear and energy-site standards, 407-extension servicing, and rural-to-industrial greenfield grading, so the methods, materials, and equipment is matched to the site.
Stormwater treatment, and in Clarington, spec'd to the load and environment on site.
Harrowgate Group responds to Clarington with fast mobilization, covering the Bowmanville and Courtice areas, the energy lands, the 401/407 corridor, and the Clarington employment lands and the surrounding area.
All of Clarington, the Bowmanville and Courtice areas, the energy lands, the 401/407 corridor, and the Clarington employment lands and the surrounding neighbourhoods, plus nearby Oshawa, Whitby, Port Hope.
Yes, Harrowgate Group handles energy and nuclear, logistics and industrial, aggregates, and greenfield employment development across Clarington, 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 Clarington project and provides a clear, documented quote.
Yes, Harrowgate Group assesses Clarington oil-grit separators on site and provides a documented scope before any work begins.
Real knowledge of Clarington, the Bowmanville and Courtice areas, the energy lands, the 401/407 corridor, and the Clarington employment lands, fast mobilization, work that is licensed, insured, and fully WSIB-covered, and full documentation on every project.
Harrowgate Group has served Durham 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 Clarington.
Yes, Harrowgate Group builds the work across Clarington 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.