1Verified listingTop rated
Aquatech Waterproofing Vaughan
Foundations & Underpinning
Looking for basement waterproofing Vaughan, Ontario? At Aquatech Waterproofing, issues of leaks, dampness, and water damage should not worry you anymore.
Best Foundation & Underpinning Contractors in Willowdale (2026)
Last updated: By ConcreteFinder Research Team
Our July 2026 analysis found 11 foundation contractors working in the Willowdale area, holding a 4.9★ average Google rating over 851 reviews. Of the rated companies in Willowdale, 90% hold a 4.8★ rating or better, so the shortlist below is genuinely competitive. We re-rank this Willowdale page as new review data lands, so positions reflect current reputation.
Which foundation contractors rank highest in Willowdale?
The 11 foundation contractors below cover Willowdale, 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.
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2Verified listingTop ratedSolidCore Inc.
Foundations & UnderpinningYour Go-To General Contractors in Toronto & GTA offering safe, efficient services for residential, commercial, and industrial projects. Serving Toronto and GTA.
3Verified listingTop ratedDryshield Basement Waterproofing
Foundations & UnderpinningToronto's trusted basement waterproofing & foundation crack repair specialist. Polyurethane & epoxy crack injection from $650. Interior weeping tile, exterior membrane, sump pumps. Free quote. Lifetime warranty.
4Verified listingTop ratedRCC Waterproofing Vaughan
Foundations & UnderpinningUncover the superior workmanship of RCC Waterproofing Vaughan, your go-to source for award winning basement waterproofing services.
5Verified listingTop ratedDirect Waterproofing Vaughan
Foundations & UnderpinningProtect your Vaughan home from water damage with expert basement waterproofing services. Contact us for a FREE inspection. Get 25 Years warranty.
6Verified listingTop ratedLook No Further Contracting & Design Inc
Stamped & Decorative ConcreteRenovations and construction contractor serving Greater Toronto. Your local general contractor & construction company offering over a decade of experience.
7Verified listingTop ratedRCC Waterproofing North York
Foundations & UnderpinningUncover the superior offerings of RCC Waterproofing North York, your go-to source for high-quality basement waterproofing solutions.
8
9Verified listing24/7 Pros Inc.
Foundations & UnderpinningUnderpinning | Underpinning in Toronto has been our specialty in the last 35 years. We Have team of licensed professionals, call 41-399-4001.
10Verified listingTop ratedNTL Contracting and Waterproofing Inc.
Foundations & UnderpinningNTL Contracting provides restoration services in Toronto. We offer waterproofing, demolition, excavation & more. Restore your home & get a free quote today.
11Verified listingDryshield Basement Waterproofing Vaughan
Concrete Repair & LevelingBasement waterproofing & foundation crack repair in Vaughan, Ontario, Woodbridge, Maple, Kleinburg, Concord & Thornhill. Interior & exterior systems, crack injection from $650, free inspections, lifetime warranty.
How much does foundation and underpinning work cost in Willowdale?
What does foundation and underpinning work cost around Willowdale? Two sourced benchmarks: basement underpinning - structural work only runs $350–$650 per linear foot (Strong Basements), and basement underpinning - turn-key project (engineering, permits, waterproofing, plumbing, new slab) runs $50–$105 per sq ft (Strong Basements (low end: Nusite Group)). Expect Willowdale quotes to trend higher where site access and disposal are limited. Remember to add 13% HST.
| Item | Typical range | Unit | Source |
|---|---|---|---|
| Bench footing (basement lowering alternative) | $75–$400(typ. $250–$350) | per linear foot | CSG Renovation (high end: Strong Basements) |
| Foundation crack repair - polyurethane injection (leaking crack) | $500–$1,000(typ. $600–$900) | per crack | DryShield Water Solutions |
| Structural engineer hourly rate (Toronto/GTA) | $150–$300(typ. $200–$250) | per hour | SEPCO Engineering |
| Bench footing - priced by floor area | $35–$60(typ. $40–$55) | per sq ft | Nusite Group |
| Exterior foundation waterproofing (excavated) | $140–$300(typ. $180–$250) | per linear foot | DryShield Water Solutions |
| Basement underpinning - turn-key project (engineering, permits, waterproofing, plumbing, new slab) | $50–$105(typ. $80–$100) | per sq ft | Strong Basements (low end: Nusite Group) |
How does ConcreteFinder rank foundation contractors in Willowdale?
ConcreteFinder ranks the 11 foundation contractors on this Willowdale 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 69 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 do I check a foundation contractor is insured in Willowdale?
- Confirm any local foundation contractor carries active WSIB coverage and liability insurance before the deposit, and ask to see the certificates. ConcreteFinder shows verification signals on each profile, but that paperwork is worth a direct check.
When should I book foundation and underpinning work in Willowdale?
- Because foundation and underpinning work in Willowdale is interior or below-grade work, it runs year-round rather than waiting on the pour season. The best crews still fill up in busy stretches, so ask early.
Do I need a permit to underpin a basement in Willowdale?
- Always. Lowering a basement by underpinning or bench footing is structural: it needs a building permit, stamped engineering under the Ontario Building Code, and staged municipal inspections. Expect a longer, controlled Willowdale schedule than flatwork, though the below-grade nature means it is not limited to the pour season.
Can I get free Willowdale foundation and underpinning work quotes?
- Yes. A free on-site estimate is standard among local foundation contractors. ConcreteFinder routes your Willowdale request to up to three matched pros so you compare real quotes without paying to shop around.
How does ConcreteFinder rank foundation contractors in Willowdale?
- Willowdale rankings are not paid. The 11 companies here are ordered by a review-volume-weighted Google score and light verification checks, and no one can pay to move up. In Willowdale, 90% of rated companies clear 4.8★, so small gaps matter.
How much choice do I have for foundation and underpinning work in Willowdale?
- As of July 2026, 11 foundation contractors cover Willowdale, at an average Google rating of 4.9★ and a median of 69 reviews each. With that many local options, get three quotes and compare scope, not just price.
Questions to ask your contractor
- How do you protect the existing structure and the neighbours during excavation?
- Will you provide stamped engineering drawings and pull the building permit? Engineering and permit cost benchmarks
- What waterproofing and drainage go in while the foundation is open?
- Is this underpinning or bench footing, and why is that right for my house?
Where else can you compare foundation contractors near Willowdale?
Still comparing? Widen the search to neighbouring areas, or see other ConcreteFinder service rankings for Willowdale below.
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