Our July 2026 analysis found 11 foundation contractors working in the Willowdale area, holding a 4.9★ average Google rating over 849 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.
3 of 4 details on file · Listed for foundation contractor work around Willowdale, 282 Google reviews average 4.9★, also listed under concrete repair & leveling and polished concrete & epoxy floors.
3 of 4 details on file · A foundation contractor working Willowdale, 46 Google reviews average 5.0★, also listed under concrete driveways and concrete patios & walkways.
3 of 4 details on file · Listed for foundation contractor work around Willowdale, 51 Google reviews average 4.8★, also listed under concrete contractors.
3 of 4 details on file · A concrete repair contractor working Willowdale, 69 Google reviews average 4.5★, also listed under foundations & underpinning.
3 of 4 details on file · Pours in Willowdale as a stamped concrete contractor, 10 Google reviews average 5.0★, also listed under concrete contractors and foundations & underpinning.
How much does foundation and underpinning work cost in Willowdale?
What does foundation and underpinning work cost around Willowdale? Two sourced benchmarks: underpinning a 1,000 sq ft basement lowered by 2 feet (total project) runs $50,000–$80,000 per project (Nusite Group (Toronto underpinning contractor)), and bench footing - priced by floor area runs $35–$60 per sq ft (Nusite Group). Expect Willowdale quotes to trend higher where site access and disposal are limited. Remember to add 13% HST.
Typical GTA foundations & underpinning prices for Willowdale, July 2026. Each row cites its source.
Item
Typical range
Unit
Source
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.
Underpinning a 1,000 sq ft basement lowered by 2 feet (total project)Nusite's worked example at their own $50 to $80 per square foot underpinning rate, over a four to ten week timeline. Permits, engineering, waterproofing, plumbing and finishing are all priced on top.
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.
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.
Foundation crack repair - polyurethane injection (leaking crack)DryShield's polyurethane tier, for stopping active leaks with a flexible seal that tolerates seasonal movement. HST and finishing work are not included unless quoted. The $500 floor this guide used to show is not on their page.
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.
How does ConcreteFinder rank foundation contractors in Willowdale?
ConcreteFinder ranks the 11 foundation contractors on this Willowdale 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 69 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.
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 lists the Willowdale companies with their public phone number and website, so you can line up two or three visits yourself and compare scope side by side.
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
1
How do you protect the existing structure and the neighbours during excavation?