Last updated: By ConcreteFinder Research Team
ConcreteFinder tracks 4 foundation contractors serving Richmond Hill, with an average Google rating of 4.63★ across 56 reviews (July 2026 data). The median foundation contractor serving Richmond Hill shows around 13 reviews, counted across the companies here that have at least three. Some rows below have fewer than that, so read the review count on each one. Rankings for Richmond Hill are independent, and no company can pay to appear higher (see our methodology).
The 4 foundation contractors below cover Richmond Hill, 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.
161/100 ConcreteFinder Score
5 reviews · 4.0
Richmond Hill
2 of 4 details on file · Listed for foundation contractor work around Richmond Hill, 5 Google reviews average 4.0★.
261/100 ConcreteFinder Score
13 reviews · 5.0
Richmond Hill
3 of 4 details on file · A foundation contractor working Richmond Hill, 13 Google reviews average 5.0★, also listed under concrete patios & walkways and concrete repair & leveling.
358/100 ConcreteFinder Score
28 reviews · 5.0
Richmond Hill
3 of 4 details on file · Pours in Richmond Hill as a foundation contractor, 28 Google reviews average 5.0★, also listed under concrete repair & leveling.
50/100 ConcreteFinder Score
10 reviews · 4.5
Richmond Hill
2 of 4 details on file · A foundation contractor working Richmond Hill, 10 Google reviews average 4.5★, posted working hours.
City of Toronto minimum building permit fee (2026) runs $214.79–$214.79 per permit (minimum; underpinning is charged per linear metre on top), according to City of Toronto Building Permit Fee Schedule, while building permit line as quoted by contractors runs $1,000–$1,500 per project, per Nusite Group (Toronto underpinning contractor), on current GTA figures for Richmond Hill. Pricing across Richmond Hill usually lands near the GTA midpoint. Budget another 13% HST on top.
| Item | Typical range | Unit | Source |
|---|---|---|---|
| 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 engineering drawings for underpinning permitStrong Basements' Toronto figure for the engineer to design the underpinning around the home's structure and soil and produce a drawing set for the permit application and construction. Some design-build firms fold it into a project package instead of billing it separately. Neither the $1,500 floor nor the $6,000 ceiling this guide used to show is on their page. | $2,000–$5,000 | per project | Strong Basements (Toronto) |
| City of Toronto minimum building permit fee (2026)A floor, not a range, and not the whole permit cost. The City charges $214.79 minimum on all work in 2026 and then calculates the permit as a service index times floor area; examination and inspection time is $92.79 an hour. Engineering, drawings, revisions and plumbing permits are extra. | $214.79–$214.79 | per permit (minimum; underpinning is charged per linear metre on top) | City of Toronto Building Permit Fee Schedule |
| 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 |
| Basement underpinning - turn-key project (engineering, permits, waterproofing, plumbing, new slab)Strong Basements' all-in figure for a basement-lowering project, the same sentence that carries their per-linear-foot rate. Their worked example is a 600 sq ft basement lowered by 2 feet at $62,900 all in. The $50 floor and $105 ceiling this guide used to show are not on their page. | $80–$100 | per sq ft | Strong Basements (low end: Nusite Group) |
| 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) |
ConcreteFinder ranks the 4 foundation contractors on this Richmond Hill 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 13 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.
Frost does not stop foundation and underpinning work here: crews work through winter on interior and below-grade jobs. Reputable Richmond Hill foundation contractors still book ahead, so start early and compare a few.
A Richmond Hill underpinning project cannot proceed without a permit. Structural foundation work requires engineered, stamped drawings from a licensed Ontario engineer and staged inspections under the Building Code. Budget for that engineering and oversight up front; the upside is that this excavation work can be done in any season.
For Richmond Hill, one July 2026 benchmark: foundation crack repair - polyurethane injection (leaking crack) runs $750–$1,000 per crack in the GTA (DryShield Basement Waterproofing (Toronto/GTA, 2026)). Quotes there usually track that GTA range. Add 13% HST, and see the full foundations & underpinning cost guide.
Look for a quote that spells out preparation, slab thickness, reinforcement, finish and haulaway, plus deposit, payment stages and warranty. When two Richmond Hill bids differ a lot, it is usually the scope, so read the line items before choosing.
Before hiring, request a live WSIB clearance and a liability certificate, and verify the dates. ConcreteFinder surfaces verification signals on every Richmond Hill profile, yet the actual insurance paperwork should be confirmed with the foundation contractor first.
ConcreteFinder lists 4 foundation contractors actively serving Richmond Hill as of July 2026, at an average Google rating of 4.63★ and a median of 13 reviews each. Compare at least three of these quotes before hiring.
Want more options nearby? Explore foundation and underpinning work in nearby areas, or jump to other ConcreteFinder rankings for Richmond Hill.
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