1Verified listing
IcyReno Waterproofing & Underpinning
No reviews yetFoundations & Underpinning
Need More Headroom and a Stronger Foundation? Toronto Homeowners trust IcyReno for Engineer-approved Basement Underpinning/Lowering Services!
Best Foundation & Underpinning Contractors in Leslieville (2026)
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).
Which foundation contractors rank highest in Leslieville?
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.
- 1
2Verified listingRaptor Masonry and Waterproofing
Concrete Patios & WalkwaysProtect, restore, and enhance your home with expert masonry, roofing, chimney, foundation, and waterproofing services. Quality craftsmanship and guaranteed
3Verified listingBasement Underpinning and Lowering
Foundations & UnderpinningRock Basements is a basement underpinning Toronto company. We provide quality services from foundation walls lowering to separate entrance construction.
4Verified listingTop ratedBonikar Building Solutions Ltd.
Foundations & UnderpinningBonikar specializes in underpinning, waterproofing, and concrete services for residential projects. Reliable, on-schedule solutions for foundations, basements, and additions.
How much does foundation and underpinning work cost in Leslieville?
Full-basement underpinning - total project cost runs $50,000–$120,000 per project, according to Capable Group Inc., while bench footing (basement lowering alternative) runs $75–$400 per linear foot, per CSG Renovation (high end: Strong Basements), 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 |
|---|---|---|---|
| Structural engineer site inspection / assessment | $600–$1,200(typ. $700–$1,000) | per visit | SEPCO Engineering |
| Foundation crack repair - polyurethane injection (leaking crack) | $500–$1,000(typ. $600–$900) | per crack | DryShield Water Solutions |
| Screw pile / helical pier underpinning | $3,000–$5,000(typ. $3,500–$4,500) | per pile | Capable Group Inc. |
| Foundation crack repair - structural epoxy injection | $800–$2,500(typ. $1,000–$1,800) | per crack | DryShield Water Solutions |
| Structural engineer hourly rate (Toronto/GTA) | $150–$300(typ. $200–$250) | per hour | SEPCO Engineering |
| Exterior foundation waterproofing (excavated) | $140–$300(typ. $180–$250) | per linear foot | DryShield Water Solutions |
How does ConcreteFinder rank foundation contractors in Leslieville?
ConcreteFinder ranks the 4 foundation contractors on this Leslieville page with a Bayesian-adjusted Google rating, so a flawless score on a few reviews cannot outrank a strong score on hundreds. The median company here carries 5 Google reviews. Small boosts for an active website, a listed phone and real photos break ties, and no company can pay for a higher spot. Read our full methodology.
Frequently asked questions
How many foundation contractors are there in Leslieville?
- 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.
How do I check a foundation contractor is insured in Leslieville?
- 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.
Are these Leslieville rankings paid placements?
- Nobody buys a higher Leslieville spot. Positions come from a Bayesian-adjusted Google rating across the 4 foundation contractors on this page, with small boosts for verifiable website, phone and photo signals. Full details live on our methodology page.
When should I book foundation and underpinning work in Leslieville?
- 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.
Can I get free Leslieville foundation and underpinning work quotes?
- Yes. A free on-site estimate is standard among local foundation contractors. ConcreteFinder routes your Leslieville request to up to three matched pros so you compare real quotes without paying to shop around.
What does a proper Leslieville concrete quote look like?
- 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.
Questions to ask your contractor
- What waterproofing and drainage go in while the foundation is open?
- What is the inspection schedule, and who books the city inspections?
- Will you provide stamped engineering drawings and pull the building permit? Engineering and permit cost benchmarks
- How do you protect the existing structure and the neighbours during excavation?
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