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Commercial and heavy-civil construction in Ajax

Underground Stormwater Systems Ajax

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 Ajax, the GTA, and Ontario.

Get a Quote in Ajax

Tell us what you need and we’ll get you a quote. Licensed, insured & WSIB certified · Free, no-obligation quote & on-site assessment.

Free, no-obligation quote & on-site assessment · licensed, insured & WSIB certified.

or
Call (416) 629-0721

Get a Quote

Licensed, insured & WSIB certified · Free, no-obligation quote & on-site assessment.

Free, no-obligation quote & on-site assessment · licensed, insured & WSIB certified.

or
Call (416) 629-0721
Licensed, Insured & WSIB Certified · 20 Years in Business
Licensed, Insured & WSIB-Registered Completed to code & Ontario requirements Built to drawings, self-performed & completed Shipped across Canada & North America
Why Harrowgate Group

Underground Stormwater Systems in Ajax, done right

Built to spec

Built to your engineered drawings, survey, and the real site conditions, not a standard package forced to fit.

Made to last

Heavy-duty steel and finishes chosen for the load, traffic, and environment on site.

Quote-ready

Send specs, drawings, or photos and get a free, no-obligation site visit and estimate with no guesswork.

Code-conscious

Installation and site work completed in accordance with Ontario requirements.

Our Process

Our Process

Underground Stormwater Systems are buried detention and infiltration systems that store and manage runoff beneath a site. For Ajax projects, Harrowgate Group builds underground stormwater systems from survey to sign-off: laid out to the drawings, constructed to code, and documented for the project file.

  1. 01 Send your inquiry, drawings, photos, or a description of what you need.
  2. 02 We come measure and assess the Ajax site (or work from your specs and drawings).
  3. 03 We build your underground stormwater systems to the engineered drawings on site, finished for the conditions.
  4. 04 We return to deliver and install it, set, levelled, and done right on site.
Underground Stormwater Systems in Ajax being built and completed on site by Harrowgate Group
Local Context

Underground Stormwater Systems in Ajax

Where underground stormwater systems are needed in Ajax for Underground Stormwater Systems in Ajax

Where underground stormwater systems are needed in Ajax

Ajax underground stormwater systems work centres on sites with limited surface space. Managing stormwater underground where surface space is tight are the recurring drivers; each Ajax project is sized to its own situation, not a one-size approach.

The Ajax market for underground stormwater systems for Underground Stormwater Systems in Ajax

The Ajax market for underground stormwater systems

In Ajax (Durham Region), underground stormwater systems demand is driven mainly by automotive and parts manufacturing, logistics and distribution, food processing, and institutional. Ajax's Bayly and Salem industrial corridors feeding the 401 anchor a strong automotive, logistics, and food-processing construction market. Demand centres on industrial slabs, truck courts, servicing, and loading-dock work.

Most of it sits around the Clements and Bayly industrial corridor, Salem Road business park, and the 401 employment lands. Clients such as manufacturers, distributors, healthcare, and the Town of Ajax drive much of the Ajax work, and no two projects carry the same scope or ground.

Underground Stormwater Systems across Ajax property

From automotive and parts manufacturing, logistics and distribution, food processing, and institutional, no two Ajax underground stormwater systems jobs are quite alike. Harrowgate Group matches scope, equipment, and crew to the specific property each time.

What Ajax conditions mean for the project

Ajax conditions shape the response: lakefront exposure, heavy-truck 401 corridor loading, and mixed retrofit and new-build industrial. Each Ajax project has the methods, materials, and equipment chosen for that environment, matched to the site instead of a one-size approach.

Turnaround and scheduling in Ajax

In Ajax, Harrowgate Group treats schedule as part of the scope: fast mobilization, the right equipment on site, and the project built in the right sequence so the following trades are not held up.

How Harrowgate Group handles an Ajax project

On Ajax 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.

Underground Stormwater Systems projects in Ajax

On a typical Ajax project the underground stormwater systems work covers sites with limited surface space around the Clements and Bayly industrial corridor and clients like manufacturers, each scoped to its own situation and recorded for the file. Harrowgate Group also serves nearby Pickering, Whitby, Oshawa, so projects spanning the surrounding area stay with one team.

Built to code and the engineered drawings, fully documented

Every Ajax underground stormwater systems project is built to the engineered drawings and the applicable codes, methods, materials, and compaction or load results documented so the work is verifiable, not assumed.

Why Ajax chooses Harrowgate Group

What keeps Harrowgate Group busy with Ajax underground stormwater systems: fast fast mobilization, licensed, insured, and fully WSIB-covered work, full documentation, and a team, with 20 years serving the area that knows the Clements and Bayly industrial corridor, Salem Road business park, and the 401 employment lands firsthand.

Completed Underground Stormwater Systems installation in Ajax by Harrowgate Group
Finished On Site

Delivered, installed, and built to last

Self-performed on site to the engineered drawings, coordinated with concrete, servicing, and the surrounding work, then a clean, documented finish.

  • Coordinated with the surrounding build
  • Durable finishes for real-world wear
  • Quote-ready support from spec to delivery
FAQ

Underground Stormwater Systems FAQ

What does underground stormwater systems mean?

The short version: Underground Stormwater Systems are buried detention and infiltration systems that store and manage runoff beneath a site. For Ajax projects, it's built to the engineered drawings and the applicable codes, self-performed on site.

Do you provide underground stormwater systems in Ajax?

Yes, we respond across Ajax and the surrounding area. Response time is fast mobilization.

Where in Ajax do you work?

Across Ajax, the work concentrates around the Clements and Bayly industrial corridor, Salem Road business park, and the 401 employment lands, each job scoped to its own conditions.

Who in Ajax needs underground stormwater systems?

Mostly automotive and parts manufacturing, logistics and distribution, food processing, and institutional, Harrowgate Group serves developers, contractors, municipalities, and property owners across Ajax.

What Ajax conditions affect the project?

In Ajax, the work accounts for lakefront exposure, heavy-truck 401 corridor loading, and mixed retrofit and new-build industrial, so the methods, materials, and equipment is matched to the site.

What are the key specs for underground stormwater systems?

Stormwater storage, and in Ajax, spec'd to the load and environment on site.

How fast can you reach Ajax?

Harrowgate Group responds to Ajax with fast mobilization, covering the Clements and Bayly industrial corridor, Salem Road business park, and the 401 employment lands and the surrounding area.

Which areas of Ajax do you cover?

All of Ajax, the Clements and Bayly industrial corridor, Salem Road business park, and the 401 employment lands and the surrounding neighbourhoods, plus nearby Pickering, Whitby, Oshawa.

Do you take on both small and large projects in Ajax?

Yes, Harrowgate Group handles automotive and parts manufacturing, logistics and distribution, food processing, and institutional across Ajax, from focused scopes to full builds, each set to its own site and drawings.

How is the cost of underground stormwater systems in Ajax determined?

Cost depends on the site conditions, the ground, the scope, and the engineered requirements, Harrowgate Group reviews the drawings and the site for each Ajax project and provides a clear, documented quote.

Do you provide free assessments in Ajax?

Yes, Harrowgate Group assesses Ajax underground stormwater systems on site and provides a documented scope before any work begins.

What makes Harrowgate Group different for underground stormwater systems in Ajax?

Real knowledge of Ajax, the Clements and Bayly industrial corridor, Salem Road business park, and the 401 employment lands, fast mobilization, work that is licensed, insured, and fully WSIB-covered, and full documentation on every project.

How long has Harrowgate Group been in business?

Harrowgate Group has served Durham Region since 2006, 20 years of hands-on experience.

What does underground stormwater systems involve in Ajax?

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 Ajax.

Do you self-perform underground stormwater systems in Ajax?

Yes, Harrowgate Group builds the work across Ajax 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.

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Get a quote for underground stormwater systems in Ajax

Send drawings, a site plan, or a description of the scope. Harrowgate Group is licensed, insured, and WSIB certified.

(416) 629-0721

Licensed, Insured & WSIB Certified · Self-performed and documented on every job

Send your project details

Tell us what you need and we’ll get you a quote. Licensed, insured & WSIB certified · Free, no-obligation quote & on-site assessment.

Free, no-obligation quote & on-site assessment · licensed, insured & WSIB certified.

or
Call (416) 629-0721

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Harrowgate Group delivers commercial and heavy-civil construction for developers, contractors, institutions, municipalities, and property groups across Ontario.

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Subway logo Subway
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Women's College Hospital logo Women's College Hospital
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Mazda logo Mazda
TD Bank logo TD Bank
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