Last updated: By ConcreteFinder Research Team
ConcreteFinder tracks 4 foundation contractors serving the Leslieville area, with an average Google rating of 4.93★ across 35 reviews (July 2026 data). In Leslieville, 100% of these companies maintain an active website, one of the verification signals our ranking checks. Rankings for Leslieville are independent, and no company can pay to appear higher (see our methodology).
The 4 foundation contractors below cover Leslieville, listed best-first by a rating method that values depth of reviews over a perfect handful. Use any card to see the profile or ask for quotes.
160/100 ConcreteFinder Score
26 reviews · 4.8
Leslieville
3 of 4 details on file · Pours in Leslieville as a foundation contractor, 26 Google reviews average 4.8★, also listed under concrete contractors.
260/100 ConcreteFinder Score
5 reviews · 5.0
Leslieville
3 of 4 details on file · Listed for concrete patio contractor work around Leslieville, 5 Google reviews average 5.0★, also listed under concrete repair & leveling and foundations & underpinning.
355/100 ConcreteFinder Score
4 reviews · 5.0
Leslieville
2 of 4 details on file · Pours in Leslieville as a foundation contractor, 4 Google reviews average 5.0★.
443/100 ConcreteFinder Score
No reviews yet
Leslieville
3 of 4 details on file · Listed for foundation contractor work around Leslieville, posted working hours.
Basement underpinning - structural work only runs $350–$480 per linear foot, according to Strong Basements, while basement underpinning - turn-key project (engineering, permits, waterproofing, plumbing, new slab) runs $80–$100 per sq ft, per Strong Basements (low end: Nusite Group), on current GTA figures for Leslieville. In Leslieville, constrained access and haulaway often nudge quotes to the upper end. Budget another 13% HST on top.
| Item | Typical range | Unit | Source |
|---|---|---|---|
| Exterior waterproofing, as part of a basement-lowering projectNusite prices this only where exterior work is needed; an interior waterproofing system on the same job is $5,000 to $8,000, and the waterproofing line as a whole is $5,000 to $15,000. | $10,000–$15,000 | per project | Nusite Group (Toronto underpinning contractor) |
| Structural engineer site inspection / assessmentOpen-ended at the top: SEPCO writes $600 to $1,200+. Covers a site visit, assessment and an optional letter or report. | $600–$1,200+ | per visit | SEPCO Engineering |
| Building permit line as quoted by contractorsWhat a contractor bills for the permit, not what the City charges. Nusite lists it inside a $2,000 to $5,000 permits-and-engineering line, alongside $1,000 to $3,500 for the engineer's assessment and drawings; the direct City of Toronto minimum fee is $214.79. | $1,000–$1,500 | per project | Nusite Group (Toronto underpinning contractor) |
| Foundation crack repair - structural epoxy injectionDryShield's epoxy tier, for bonding structural cracks where strength restoration is the goal. Same floor as polyurethane, higher ceiling. Neither the $800 floor nor the $2,500 ceiling this guide used to show is on their page. | $750–$1,500 | per crack | DryShield Basement Waterproofing (Toronto/GTA, 2026) |
| Bench footing - priced by floor areaBench footing keeps the existing footing and steps the new floor in from the wall, so it is cheaper than underpinning but gives up perimeter floor area. Nusite's timeline is four to eight weeks. | $35–$60 | per sq ft | Nusite Group |
| Structural engineer hourly rate (Toronto/GTA)An hourly consultation rate for advice only. SEPCO puts Toronto and the GTA at the top of the provincial band, $150 to $300 per hour, for highest demand and fastest turnaround. | $150–$300 | per hour | SEPCO Engineering |
ConcreteFinder ranks the 4 foundation contractors on this Leslieville page out of 100, and reviews are 45 of it on a method where a flawless score on a few reviews cannot outrank a strong score on hundreds. The median company here carries 5 Google reviews. The rest counts what a company states on its own site and what we can see of its record, and no company can pay for a higher spot. Read our full methodology.
As of July 2026, 4 foundation contractors cover Leslieville, at an average Google rating of 4.93★ and a median of 5 reviews each. With that many local options, get three quotes and compare scope, not just price.
Ask any local foundation contractor for a current WSIB clearance and proof of liability insurance, and confirm both are active before work starts. ConcreteFinder flags verification signals on each profile, but the coverage documents are worth checking directly.
Nobody buys a higher Leslieville spot. Positions come from a published score across the 4 foundation contractors on this page: reviews weighed by volume, the company's own stated details, and its website, phone and photos. Full details live on our methodology page.
In Leslieville, this is year-round work, since it happens indoors or below grade rather than on open ground. Good local foundation contractors book up in peak weeks, so request quotes with some lead time.
Yes. A free on-site estimate is standard among local foundation contractors. ConcreteFinder lists the Leslieville companies with their public phone number and website, so you can line up two or three visits yourself and compare scope side by side.
Look for a quote that spells out preparation, slab thickness, reinforcement, finish and haulaway, plus deposit, payment stages and warranty. When two Leslieville bids differ a lot, it is usually the scope, so read the line items before choosing.
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