Built to spec
Built to your engineered drawings, survey, and the real site conditions, not a standard package forced to fit.
Underground Stormwater Systems are buried detention and infiltration systems that store and manage runoff beneath a site. Harrowgate Group self-performs the work to your engineered drawings, load, and finish, and completes it on site across Pickering, 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.
Underground Stormwater Systems are buried detention and infiltration systems that store and manage runoff beneath a site. Harrowgate Group treats each Pickering underground stormwater systems project as its own scope: the site conditions, the engineered plan, and the sequencing set before a crew mobilizes.
In Pickering, underground stormwater systems are typically needed for sites with limited surface space. The recurring drivers are managing stormwater underground where surface space is tight, each Pickering project is scoped to its own situation rather than a standard package.
What drives underground stormwater systems in Pickering (Durham Region) is energy and nuclear, logistics and industrial, commercial and office, and the Seaton greenfield development. Pickering pairs the nuclear and energy sector with the massive Seaton greenfield community and 407 employment lands. Work ranges from industrial and institutional site development to large-scale servicing, stormwater, and roadworks.
Activity clusters in the nuclear and energy lands, Brock Road industrial, the Seaton community, and the 407 employment corridor. Harrowgate Group regularly builds underground stormwater systems for Pickering clients like energy operators, developers, logistics companies, and the City of Pickering, each project carrying its own site and requirements.
Pickering buildings vary widely, energy and nuclear, logistics and industrial, commercial and office, and the Seaton greenfield development, and the right underground stormwater systems approach changes with each. Harrowgate Group reads the property before it scopes the project.
Pickering conditions shape the response: nuclear-site security and standards, the very large Seaton greenfield buildout, and 407-corridor servicing. Harrowgate Group sets the methods, materials, and equipment for those exact conditions on every Pickering project, working to the site conditions and the engineered drawings rather than a regional default.
Harrowgate Group keeps Pickering underground stormwater systems on schedule, from quote to crew on site with fast mobilization, then built to grade and documented through to completion.
For Pickering: survey and lay out to the drawings, prep and shore the site, build the work to code, then backfill, compact, and restore, a sequence checked at every hold point, not left to chance.
Harrowgate Group treats coordination as part of the build. On a Pickering underground stormwater systems 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 Pickering project is built to the approved design and passes the inspections that matter.
Representative Pickering work: underground stormwater systems for sites with limited surface space, often near the nuclear and energy lands and clients like energy operators, handled end to end and fully documented. Harrowgate Group also serves nearby Ajax, Scarborough, Whitby, so projects spanning the surrounding area stay with one team.
Harrowgate Group builds Pickering underground stormwater systems 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.
Harrowgate Group earns Pickering underground stormwater systems work the hard way, fast mobilization, licensed, insured, and fully WSIB-covered crews, with 20 years serving the area, and real familiarity with the nuclear and energy lands, Brock Road industrial, the Seaton community, and the 407 employment corridor rather than a one-size regional script.
Self-performed on site to the engineered drawings, coordinated with concrete, servicing, and the surrounding work, then a clean, documented finish.
The short version: Underground Stormwater Systems are buried detention and infiltration systems that store and manage runoff beneath a site. For Pickering projects, it's built to the engineered drawings and the applicable codes, self-performed on site.
Yes, we respond across Pickering and the surrounding area. Response time is fast mobilization.
Across Pickering, the work concentrates around the nuclear and energy lands, Brock Road industrial, the Seaton community, and the 407 employment corridor, each job scoped to its own conditions.
Mostly energy and nuclear, logistics and industrial, commercial and office, and the Seaton greenfield development, Harrowgate Group serves developers, contractors, municipalities, and property owners across Pickering.
In Pickering, the work accounts for nuclear-site security and standards, the very large Seaton greenfield buildout, and 407-corridor servicing, so the methods, materials, and equipment is matched to the site.
Stormwater storage, chosen for the Pickering job rather than a default.
Harrowgate Group responds to Pickering with fast mobilization, covering the nuclear and energy lands, Brock Road industrial, the Seaton community, and the 407 employment corridor and the surrounding area.
All of Pickering, the nuclear and energy lands, Brock Road industrial, the Seaton community, and the 407 employment corridor and the surrounding neighbourhoods, plus nearby Ajax, Scarborough, Whitby.
Yes, Harrowgate Group handles energy and nuclear, logistics and industrial, commercial and office, and the Seaton greenfield development across Pickering, 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 Pickering project and provides a clear, documented quote.
Yes, Harrowgate Group assesses Pickering underground stormwater systems on site and provides a documented scope before any work begins.
Real knowledge of Pickering, the nuclear and energy lands, Brock Road industrial, the Seaton community, and the 407 employment corridor, 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 Pickering.
Yes, Harrowgate Group builds the work across Pickering 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 underground stormwater systems, 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.