Last updated: By ConcreteFinder Research Team
Foundation crack injection costs $750 to $1,000 per crack for polyurethane and $750 to $1,500 for structural epoxy in Toronto, according to DryShield. Resurfacing a sound slab runs $4 to $8 per square foot, about half the $12 to $18 of replacement (Nusite Group). Levelling a sunken walkway or porch slab is $1,200 to $2,500 a job, and parging runs $3 to $8 per square foot.
Every figure below is quoted from the page it names. These 12 rows rest on 6 independent Canadian sources, each linked on the row it carries. Where sources disagree, each row keeps one publisher's own published figure rather than a range assembled across several, so you can check any number against the sentence it came from.
| Item | Typical range | Unit | Source |
|---|---|---|---|
| Foundation crack injection - polyurethane (leak-stopping)DryShield's own polyurethane tier, best for stopping active leaks with a flexible seal that tolerates seasonal movement. HST and finishing work such as drywall removal, insulation and repainting are not included unless quoted, and final pricing is confirmed after inspection. | $750–$1,000 | per crack | DryShield Basement Waterproofing (Toronto/GTA, updated July 2026) |
| Foundation crack injection - epoxy (structural bonding)DryShield's own epoxy tier, for bonding structural cracks in poured concrete where strength restoration is the goal. Same floor as polyurethane, higher ceiling. Tie-rod hole sealing is separate at $75 to $150 per hole; volume discounts apply from three cracks up. | $750–$1,500 | per crack | DryShield Basement Waterproofing (Toronto/GTA, updated July 2026) |
| Exterior excavation + membrane crack repairExterior repair means excavating to the footing and installing a waterproofing membrane, so it is priced per crack but scoped as a dig. RenoQuotes repeats the same $3,000 to $5,500 as its average further down the page. | $3,000–$5,500 | per crack | RenoQuotes (Canada, 2026) |
| Minor surface crack sealing (porch/walkway/slab)One day of work in Toronto Concrete Repairs' Average Costs table. The same page's FAQ text says minor crack sealing starts at $300 to $600, so confirm scope before treating $600 as the floor. | $600–$900 | per job | Toronto Concrete Repairs |
| Parging - standard applicationGTA Brickworks says the range is wide because scope, surface condition and what is found once the old coating comes off vary a lot. It works out to $900 to $3,500 for a standard detached home's foundation. | $3–$8 | per sq ft | GTA Masonry (May 2026) |
| Parging - premium two-coat installed (incl. prep + bonding agent)Alasya's rate is for a two-coat application installed, which is why it sits above GTA Brickworks' $3 to $8 standard-application figure. | $6–$12 | per sq ft | Alasya Construction (Toronto, 2026) |
| Parging patch repair (under 10 sq ft)Under 10 sq ft only. GTA Brickworks prices anything larger by the square foot at $3 to $8. | $250–$600 | per job | GTA Masonry (May 2026) |
| Full foundation re-parge (detached Toronto home)A 2026 figure for a typical Toronto detached home. Alasya says homes with larger exposed perimeters, significant existing damage, or an acrylic finish coat land at the higher end. | $3,500–$7,000 | per home | Alasya Construction (Toronto, 2026) |
| Concrete resurfacing overlay - basicMaterials and labour for a polymer overlay 1/4 to 1 inch thick over a sound existing surface. Nusite is writing for property managers and puts full replacement at $12 to $18 per square foot for comparison. The $10 ceiling this guide used to show is not on their page. | $4–$8 | per sq ft | Nusite Group / Toronto Concrete Repairs |
| Decorative stamped/broom-finish overlayA decorative finish applied while repairing, in slate, stone or brick patterns. Toronto Concrete Repairs prices it as an upgrade over a plain repair, not as a standalone floor. | $8–$15 | per sq ft | Toronto Concrete Repairs |
| Residential mudjacking/leveling job (walkway or porch slab)One day of work in Toronto Concrete Repairs' Average Costs table, for a walkway or porch slab rather than a driveway. | $1,200–$2,500 | per job | Toronto Concrete Repairs |
| Spalling repair - moderate (steps/porch surface)One to two days of work. Toronto Concrete Repairs prices minor crack sealing below this at $600 to $900 and full resurfacing above it at $2,500 to $4,500. | $1,000–$1,500 | per job | Toronto Concrete Repairs |
per job
GTA Masonry (May 2026)
Toronto Concrete Repairs
Toronto Concrete Repairs
Toronto Concrete Repairs
per sq ft
GTA Masonry (May 2026)
Nusite Group / Toronto Concrete Repairs
Alasya Construction (Toronto, 2026)
Toronto Concrete Repairs
per crack
DryShield Basement Waterproofing (Toronto/GTA, updated July 2026)
DryShield Basement Waterproofing (Toronto/GTA, updated July 2026)
RenoQuotes (Canada, 2026)
11 of these 12 rows are drawn. The other 1 is priced in a unit no other row on this page shares, or carry an open-ended figure such as a “starting at” price with no published ceiling. Neither can be placed on a shared axis honestly, so they stay in the table above with their sources rather than being drawn to a number nobody printed.
Two quotes on the same job often differ because they are quoting different work, not different rates. This is how the trade splits it up, drawn from the rows and factors already on this page. It carries no prices on purpose: those belong beside the source that published them.
Two crack injections that are not interchangeable
Foundation cracks get injected either way, and the two resins do different jobs. A quote that does not say which one it is quoting is not yet comparable with anything.
Is the crack leaking water, or has it moved?
Polyurethane, for a leaking crack
A flexible resin that foams on contact with water and stops the leak. It seals the path water is taking. It is not adding strength back to the wall.
Epoxy, for a structural crack
A rigid resin that bonds the two faces back together, so the wall carries load across the crack again. It needs a dry crack to bond to.
A rate per square foot is hard to picture. These are photographs published by ConcreteFinder companies working in this category across the Greater Toronto Area, at the size they deserve rather than as thumbnails. Each one links to that company's record, with its rating, its service area and its phone number.
Hamilton Concrete Works
Burlington
Fix My Brick
Mississauga
MaConcrete Floors
Mimico
Horizon Construction
Islington-City Centre West
WillFix
Brampton
Three Little Pigs Masonry
Richmond Hill
Spec, access and job size move concrete repair pricing more than anything else in Toronto. Each factor below is tied to a figure in the table above, so you can read a quote and see where the money goes.
Yes, Ontario changes the math: 13% HST sits on top of every quote, City permits apply to anything touching the right-of-way, and the freeze-thaw season closes the practical pour window. Each point below is what applies locally.
The biggest savings come from job timing, bundling small pours into one mobilization, and doing demolition yourself. Each lever below is tied to a real number in the table above, not to cutting the parts that matter.
Every price on this page was re-opened at its source and matched to the sentence that carries it. Where sources disagree, ConcreteFinder keeps each row on one publisher's own figure and writes the disagreement down here rather than blending them into a range nobody published.
ConcreteFinder tracks 83 concrete repair contractors across the Greater Toronto Area, rated 4.82★ on average. The three below rank highest on our review-weighted score, based on ConcreteFinder's analysis of 83 GTA businesses, July 2026.
186/100 ConcreteFinder Score
282 reviews · 4.9
Willowdale
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.
282/100 ConcreteFinder Score
86 reviews · 4.9
Leaside
3 of 4 details on file · Leaside concrete patio contractor, 86 Google reviews average 4.9★, also listed under concrete repair & leveling and concrete contractors.
379/100 ConcreteFinder Score
70 reviews · 4.9
Oakville
3 of 4 details on file · Pours in Oakville as a foundation contractor, 70 Google reviews average 4.9★, also listed under concrete repair & leveling.
One thing the address genuinely changes is access, which every quote on this page is sensitive to: a downtown lot a truck cannot chute into means a pump or a wheelbarrow crew, and a rear-laneway job is formed differently from an open suburban frontage. The other is how many companies will bid at all. These are the Greater Toronto Area areas where ConcreteFinder tracks the most concrete repair contractors, with the count on each.
Put your own dimensions through the numbers above. Each calculator shows the working line by line, so you can hold a contractor's quote against it.
Five published criteria decide whether your slab can take an overlay, and both options are priced either way.
A quote is hard to compare when half of it is trade vocabulary. These are the terms used in the table above, defined in the words a contractor would use.
Most concrete repair quotes arrive alongside another one. These are the three ConcreteFinder guides closest to this job, each priced from its own named sources.
Underpinning runs $350 to $480 per linear foot, or $50,000 to $80,000 for a 1,000 square foot basement.
Concrete patios run $15 to $30 per square foot, about $4,500 to $7,000 for a 300 to 400 square foot patio.
Concrete driveways run $12 to $20 per square foot installed, about $5,500 to $9,000 for a two-car driveway.
Interior crack injection is the standard fix. DryShield, a Toronto and GTA waterproofer, publishes $750 to $1,000 per crack for polyurethane, which stops active leaks, and $750 to $1,500 for structural epoxy. RenoQuotes' Canada-wide interior figure is $500 to $1,500, and some Toronto firms quote $1,500 to $3,000 per seam, so get two or three quotes. Exterior dig-and-seal repairs run $3,000 to $5,500 per crack.
GTA quotes span $3–$8 per square foot for standard parging and $6–$12 for a premium two-coat system with proper surface prep; an acrylic finish coat adds $3–$5 per square foot. Small patches under 10 sq ft run $250–$600, while fully re-parging a detached Toronto home's foundation typically costs $3,500–$7,000.
Yes, substantially. Nusite Group prices a resurfacing overlay at $4 to $8 per square foot for materials and labour, against $12 to $18 per square foot for full tear-out and replacement. The catch: the existing slab must be structurally sound. If it is badly cracked, heaved or settling, an overlay will fail and replacement is the better spend.
Mudjacking is cheaper upfront; polyurethane foam costs more but cures in about fifteen minutes, adds far less weight to the soil, and is generally considered permanent. Toronto contractors do not publish per-square-foot rates for either, so the figure to budget against is the job: Toronto Concrete Repairs prices a residential mudjacking or levelling job on a walkway or porch slab at $1,200 to $2,500 for a day's work.
Moderate spalling repair - grinding out crumbling concrete, reinforcing, and refacing with repair mortar or an overlay - runs $1,000–$1,500 in Toronto per Toronto Concrete Repairs. Individual step repair or replacement costs $300–$800 per step. If spalling covers most of the surface, a full resurfacing at $2,500–$4,500 usually beats patching piecemeal.
Usually no. Parging, crack injection, resurfacing, and slab lifting on your own property don't require a building permit. You do need one (plus engineered drawings) for structural work like underpinning or foundation replacement, and any work in the city right-of-way - widening a driveway curb cut or installing a front-yard parking pad - needs City of Toronto approval, with pad licences often costing several hundred dollars.
Toronto Concrete Repairs prices mudjacking or levelling at $1,200 to $2,500 for a one-day residential job. Toronto slab-lifting firms do not publish per-slab or per-square-foot rates, so treat that job figure as the planning number and bundle several slabs, front walk, patio and garage apron, into one visit for the best rate.
Because scope hides below the surface. A $750 crack injection becomes $2,500 or more if the basement is finished, the crack is structural, or carbon-fibre reinforcement is needed, and parging jumps from $3 to $8 per square foot to far higher when old failed parging has to be stripped first. Toronto's freeze-thaw climate also punishes cheap single-coat work, so premium quotes often reflect prep, not padding.
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