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 Newmarket, 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 builds underground stormwater systems across Newmarket to the engineered drawings and the applicable codes, surveyed, built on site, and completed to grade for the real conditions.
Newmarket underground stormwater systems work centres on sites with limited surface space. Across Newmarket, they solve managing stormwater underground where surface space is tight, and because no two sites are identical the scope is set per site, not a default.
Newmarket's need for underground stormwater systems (York Region) is driven largely by healthcare and institutional, commercial and retail, light industrial, and highway-corridor development. Newmarket's regional hospital and Davis Drive corridor anchor institutional and commercial construction, with light-industrial growth along the 404. Work spans institutional site development, servicing, and commercial paving and concrete.
Most of it sits around the Leslie Street and 404 employment lands, the Davis Drive corridor, and downtown intensification. Harrowgate Group regularly builds underground stormwater systems for Newmarket clients like hospitals, institutions, developers, and the Town of Newmarket, each project carrying its own site and requirements.
From healthcare and institutional, commercial and retail, light industrial, and highway-corridor development, no two Newmarket underground stormwater systems jobs are quite alike. Harrowgate Group matches scope, equipment, and crew to the specific property each time.
In Newmarket, the work has to account for hospital-campus expansion, Davis Drive transit corridor, and 404 industrial servicing. Harrowgate Group sets the methods, materials, and equipment for those exact conditions on every Newmarket project, working to the site conditions and the engineered drawings rather than a regional default.
Harrowgate Group keeps Newmarket underground stormwater systems on schedule, from quote to crew on site with fast mobilization, then built to grade and documented through to completion.
On Newmarket work the sequence is fixed: locate and protect what is in the ground, prepare the site, build to the drawings, compact and finish to grade, and restore the surface, documented at each stage.
A Newmarket underground stormwater systems project rarely involves one party. Harrowgate Group coordinates with your structural and civil engineers, architects, city planners, geotechnical consultants, and the municipal reviewers whose sign-off the work needs, building to the stamped drawings, honouring the design intent, and keeping the Newmarket project aligned with what was engineered and approved.
Permits and approvals can stall a Newmarket project as fast as weather. Harrowgate Group manages the underground stormwater systems approvals directly, from applications and municipal or conservation-authority sign-offs where they apply to utility locates and the inspection schedule, so the Newmarket work stays legal, documented, and inspection-ready at every stage.
On a typical Newmarket project the underground stormwater systems work covers sites with limited surface space around the Leslie Street and 404 employment lands and clients like hospitals, each scoped to its own situation and recorded for the file. Harrowgate Group also serves nearby Aurora, East Gwillimbury, Bradford, so projects spanning the surrounding area stay with one team.
Across Newmarket, Harrowgate Group serves the Leslie Street and 404 employment lands, the Davis Drive corridor, and downtown intensification and every neighbourhood in between, no part of Newmarket is too far for underground stormwater systems.
Harrowgate Group builds Newmarket 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.
Property owners and managers across Newmarket choose Harrowgate Group, with 20 years serving the area for underground stormwater systems because the work is licensed, insured, and fully WSIB-covered, backed by fast mobilization. Knowing Newmarket, the Leslie Street and 404 employment lands, the Davis Drive corridor, and downtown intensification, means each project is handled by a team that reads the local conditions, not a distant call centre.
Self-performed on site to the engineered drawings, coordinated with concrete, servicing, and the surrounding work, then a clean, documented finish.
Put simply, Underground Stormwater Systems are buried detention and infiltration systems that store and manage runoff beneath a site. For Newmarket projects, it's built to the engineered drawings and the applicable codes, self-performed on site.
Yes, we respond across Newmarket and the surrounding area. Response time is fast mobilization.
Across Newmarket, the work concentrates around the Leslie Street and 404 employment lands, the Davis Drive corridor, and downtown intensification, each job scoped to its own conditions.
Mostly healthcare and institutional, commercial and retail, light industrial, and highway-corridor development, Harrowgate Group serves developers, contractors, municipalities, and property owners across Newmarket.
In Newmarket, the work accounts for hospital-campus expansion, Davis Drive transit corridor, and 404 industrial servicing, so the methods, materials, and equipment is matched to the site.
Stormwater storage, and in Newmarket, spec'd to the load and environment on site.
Harrowgate Group responds to Newmarket with fast mobilization, covering the Leslie Street and 404 employment lands, the Davis Drive corridor, and downtown intensification and the surrounding area.
All of Newmarket, the Leslie Street and 404 employment lands, the Davis Drive corridor, and downtown intensification and the surrounding neighbourhoods, plus nearby Aurora, East Gwillimbury, Bradford.
Yes, Harrowgate Group handles healthcare and institutional, commercial and retail, light industrial, and highway-corridor development across Newmarket, 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 Newmarket project and provides a clear, documented quote.
Yes, Harrowgate Group assesses Newmarket underground stormwater systems on site and provides a documented scope before any work begins.
Real knowledge of Newmarket, the Leslie Street and 404 employment lands, the Davis Drive corridor, and downtown intensification, 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 Newmarket.
Yes, Harrowgate Group builds the work across Newmarket 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.