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 St. Thomas, 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 St.
St. Thomas sheet and torch-on waterproofing work centres on foundations, decks, and roofs. Across St. Thomas, 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.
In St. Thomas (Elgin County), sheet and torch-on waterproofing demand is driven mainly by electric-vehicle and battery manufacturing, automotive and parts, logistics, and greenfield mega-site development. St. Thomas is home to one of Canada's largest greenfield industrial projects, the EV battery mega-site, driving enormous heavy-civil demand. Work centres on mass earthworks, servicing, roadworks, and large-scale site development.
The work concentrates around the Volkswagen battery mega-site, the industrial parks, and the highway employment lands. Much of the St. Thomas work is for the EV battery sector, manufacturers, and the City of St. Thomas, each needing the job built to the drawings, to code, and documented.
St. Thomas property spans the full range, electric-vehicle and battery manufacturing, automotive and parts, logistics, and greenfield mega-site development, and sheet and torch-on waterproofing looks different on each. Harrowgate Group sets the approach to the building type on every St. Thomas project.
The St. Thomas variables that matter are very large mega-site earthworks and servicing, fast-tracked schedules, and heavy-civil infrastructure. Harrowgate Group sets the methods, materials, and equipment for those exact conditions on every St. Thomas project, working to the site conditions and the engineered drawings rather than a regional default.
On St. Thomas sheet and torch-on waterproofing, Harrowgate Group moves where it counts: fast mobilization, a crew and equipment set to the schedule, and the project built to the engineered plan and inspected as it goes.
Harrowgate Group runs each St. Thomas project by the book, survey and layout from the drawings, locates and shoring where needed, the work built to spec, then compaction, finishing, and clean-up, with hold points checked before the next stage.
Whatever professionals a St. Thomas sheet and torch-on waterproofing 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 St. Thomas project falls between design, permit, and field.
Representative St. Thomas work: sheet and torch-on waterproofing for foundations, decks, and roofs, often near the Volkswagen battery mega-site and clients like the EV battery sector, handled end to end and fully documented. Harrowgate Group also serves nearby London, Aylmer, Tillsonburg, so projects spanning the surrounding area stay with one team.
Harrowgate Group builds St. Thomas 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.
Harrowgate Group earns St. Thomas sheet and torch-on waterproofing work the hard way, fast mobilization, licensed, insured, and fully WSIB-covered crews, with 20 years serving the area, and real familiarity with the Volkswagen battery mega-site, the industrial parks, and the highway employment lands 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.
In short: Sheet and Torch-On Waterproofing is membrane waterproofing applied in sheets or torch-applied for durable below-grade and deck protection. For St. Thomas projects, it's built to the engineered drawings and the applicable codes, self-performed on site.
Yes, we respond across St. Thomas and the surrounding area. Response time is fast mobilization.
Across St. Thomas, the work concentrates around the Volkswagen battery mega-site, the industrial parks, and the highway employment lands, each job scoped to its own conditions.
Mostly electric-vehicle and battery manufacturing, automotive and parts, logistics, and greenfield mega-site development, Harrowgate Group serves developers, contractors, municipalities, and property owners across St. Thomas.
In St. Thomas, the work accounts for very large mega-site earthworks and servicing, fast-tracked schedules, and heavy-civil infrastructure, so the methods, materials, and equipment is matched to the site.
Hydrostatic and traffic, chosen for the St. Thomas job rather than a default.
Harrowgate Group responds to St. Thomas with fast mobilization, covering the Volkswagen battery mega-site, the industrial parks, and the highway employment lands and the surrounding area.
All of St. Thomas, the Volkswagen battery mega-site, the industrial parks, and the highway employment lands and the surrounding neighbourhoods, plus nearby London, Aylmer, Tillsonburg.
Yes, Harrowgate Group handles electric-vehicle and battery manufacturing, automotive and parts, logistics, and greenfield mega-site development across St. Thomas, 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 St. Thomas project and provides a clear, documented quote.
Yes, Harrowgate Group assesses St. Thomas sheet and torch-on waterproofing on site and provides a documented scope before any work begins.
Real knowledge of St. Thomas, the Volkswagen battery mega-site, the industrial parks, and the highway employment lands, fast mobilization, work that is licensed, insured, and fully WSIB-covered, and full documentation on every project.
Harrowgate Group has served Elgin County 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 St. Thomas.
Yes, Harrowgate Group builds the work across St. Thomas 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.