Built to spec
Built to your engineered drawings, survey, and the real site conditions, not a standard package forced to fit.
Sheet and Torch-On Waterproofing is membrane waterproofing applied in sheets or torch-applied for durable below-grade and deck protection. Harrowgate Group self-performs the work to your engineered drawings, load, and finish, and completes it on site across Ajax, 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.
Sheet and Torch-On Waterproofing is membrane waterproofing applied in sheets or torch-applied for durable below-grade and deck protection. Harrowgate Group handles sheet and torch-on waterproofing for Ajax around the actual ground conditions, loads, and access of each site, built to spec, not to a template.
Most Ajax sheet and torch-on waterproofing jobs involve foundations, decks, and roofs. Across Ajax, it solves durable, proven membrane waterproofing for tough conditions, and because no two sites are identical the scope is set per site, not a default.
Ajax's need for sheet and torch-on waterproofing (Durham Region) is driven largely 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. Much of the Ajax work is for manufacturers, distributors, healthcare, and the Town of Ajax, each needing the job built to the drawings, to code, and documented.
Because Ajax spans automotive and parts manufacturing, logistics and distribution, food processing, and institutional, sheet and torch-on waterproofing is never one-size: Harrowgate Group fits the method to the building type, age, and use on every project.
What shapes an Ajax project is 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.
Programs slip when trades do not show. Harrowgate Group builds the Ajax sheet and torch-on waterproofing work itself, so mobilization, sequencing, and completion stay with one accountable team, with fast mobilization to get moving.
For Ajax: 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.
An Ajax sheet and torch-on waterproofing 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 Ajax project aligned with what was engineered and approved.
A typical Ajax sheet and torch-on waterproofing project pairs the work with local conditions: foundations, decks, and roofs around the Clements and Bayly industrial corridor and clients like manufacturers. Harrowgate Group tailors each project to the situation and documents it for the file. Harrowgate Group also serves nearby Pickering, Whitby, Oshawa, so projects spanning the surrounding area stay with one team.
Harrowgate Group builds Ajax sheet and torch-on waterproofing 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 Ajax, owners call Harrowgate Group for sheet and torch-on waterproofing for a simple reason: licensed, insured, and fully WSIB-covered work, fast mobilization, and a crew that actually knows the Clements and Bayly industrial corridor, Salem Road business park, and the 401 employment lands and how local buildings fail.
Self-performed on site to the engineered drawings, coordinated with concrete, servicing, and the surrounding work, then a clean, documented finish.
In short: Sheet and Torch-On Waterproofing is membrane waterproofing applied in sheets or torch-applied for durable below-grade and deck protection. For Ajax projects, it's built to the engineered drawings and the applicable codes, self-performed on site.
Yes, we respond across Ajax and the surrounding area. Response time is fast mobilization.
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.
Mostly automotive and parts manufacturing, logistics and distribution, food processing, and institutional, Harrowgate Group serves developers, contractors, municipalities, and property owners across Ajax.
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.
Hydrostatic and traffic, and in Ajax, spec'd to the load and environment on site.
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.
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.
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.
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.
Yes, Harrowgate Group assesses Ajax sheet and torch-on waterproofing on site and provides a documented scope before any work begins.
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.
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 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.
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 sheet and torch-on waterproofing, 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.