By Jason Carillo, Production Manager · Updated July 16, 2026 · 25+ years of experience · 8-time HomeStars “Best of” winner · Serving Toronto, the GTA & Southern Ontario
Why homeowners trust DryShield: Rated 4.9/5 from 282 Google reviews · 8-time HomeStars “Best of” winner · A+ BBB rating · $5M liability coverage, fully insured · Lifetime transferable warranty · Eligible contractor for City of Toronto, Peel & Halton basement-flooding subsidies. Call 1-800-277-5411.
Key takeaways
- Crack injection: about $750–$1,500 per crack — the most common foundation repair.
- External foundation crack repair: about $150–$250+ per linear foot (exterior excavation).
- Structural repair / underpinning: about $500–$800 per foot.
- Biggest cost drivers: crack size, water involvement, foundation depth, and access.
- Next step: a free on-site assessment confirms the cause and a fixed price — call 1-800-277-5411.
On this page
- 2026 foundation repair cost (Ontario)
- Cost to fix a cracked foundation
- Cost to fix a leaking basement
- What affects foundation repair cost
- Structural repair & underpinning cost
- Rebates & subsidies
- How to get a foundation repair quote
- Frequently asked questions
“Foundation repair” covers everything from a single hairline crack to full structural underpinning, so the price range is wide. The two questions most Ontario homeowners actually ask are “what’s the cost to fix a cracked foundation?” and “what’s the cost to fix a leaking basement?” — and those usually land at the lower end. Use the ranges below to budget, then book a free on-site assessment for a firm, written quote.
2026 foundation repair cost in Ontario
Can I finance foundation repair or pay in installments?
DryShield gives you a firm, fixed written quote after a free on-site inspection, and can review available payment options for larger projects. You may also qualify for City of Toronto, Peel, or Halton basement-flooding protection subsidies, which can offset part of the cost. Ask about both when you book your free inspection.
Is foundation repair worth doing before selling my home?
Usually, yes. A visible foundation crack or a leaking basement is a common red flag during a buyer’s home inspection and can lower offers or delay closing. Fixing it — and passing along DryShield’s transferable lifetime warranty to the new owner — removes that objection and protects your sale price. A free inspection confirms whether repair is needed before you list.
| Repair type | Typical Ontario cost* | What it covers |
|---|---|---|
| Foundation crack injection (per crack) | ~$750 – $1,500 | Interior polyurethane or epoxy injection of a poured-concrete crack |
| External foundation crack repair | ~$150 – $250+ / lin ft | Exterior excavation & membrane at the crack location |
| Structural repair / underpinning | ~$500 – $800 / ft | Underpinning, piers or wall reinforcement (per linear foot) |
*General Ontario market ranges for 2026, excluding HST. A simple crack injection in a newer build can become a larger repair in an older Toronto home — a free assessment gives a firm number.
Note: Broader basement leaks caused by groundwater pressure (not a single crack) are a waterproofing job, not a foundation repair. For interior and exterior system pricing, see our basement waterproofing cost guide.
Cost to fix a cracked foundation
The cost to fix a cracked foundation in Ontario is usually $750–$1,500 per crack for polyurethane injection, the most common fix for a leaking poured-concrete crack. That covers interior crack injection; if the crack has to be reached from outside, external foundation crack repair (excavation and membrane) runs higher — roughly $150–$250+ per linear foot ($5,000–$20,000+) depending on depth and access.
What changes the crack in foundation repair cost:
- Crack length and width — more material and time for longer, wider cracks
- Interior vs. exterior repair — injection is the lower-cost interior fix; exterior repair adds excavation
- Active water — a leaking crack may need drainage as well as sealing
- Foundation type — injection works on poured concrete; block or stone foundations need different methods
- Access — finished walls or tight spaces add labour
Crack injection carries DryShield’s transferable lifetime warranty on eligible work. For single-crack pricing, see our crack injection cost page.
Cost to fix a leaking basement
The cost to fix a leaking basement depends on where and why it leaks. A single leaking crack is often solved with crack injection at $750–$1,500. Broader seepage — along the floor/wall cove joint or through multiple points — usually needs an interior or exterior waterproofing system rather than a foundation repair. For that pricing, see our basement waterproofing cost guide.
| Basement leak problem | Typical fix | Cost range* |
|---|---|---|
| Single leaking poured-concrete crack | Polyurethane crack injection | ~$750 – $1,500 |
| Broader groundwater seepage | Interior/exterior waterproofing system | See waterproofing cost |
*General Ontario ranges, excl. HST. For a detailed breakdown, see DryShield’s guides on basement leak repair cost and foundation crack repair cost.
What affects foundation repair cost the most
- Type of problem — a single crack injection is a fraction of the cost of a waterproofing system or underpinning.
- Interior vs. exterior — interior injection and drainage cost less than exterior excavation.
- Water involvement — a dry crack is cheaper than one that has caused active leaking and needs drainage.
- Foundation depth & type — deeper footings and block/stone walls raise labour and method costs.
- Access — finished basements, tight side yards, decks and hardscaping add to the total.
Structural repair & underpinning cost
Structural foundation repair — underpinning, piers, or wall reinforcement — is the high end, at roughly $500–$800 per foot. These jobs address settling, bowing walls, or a foundation that is no longer structurally sound — not routine leaks. Horizontal cracks or walls visibly pushing inward are warning signs to have assessed immediately.
Rebates & subsidies
Foundation repair itself is generally not directly subsidized, but flood-protection components installed alongside it — a sump pump or backwater valve — may qualify for municipal rebates:
- City of Toronto Basement Flooding Protection Subsidy (covers up to 80% of eligible sump/backwater-valve work)
- Peel and Halton Region backwater-valve and basement-flooding rebates
DryShield is an eligible, licensed contractor for these programs. A free assessment confirms what applies to your project.
How to get a foundation repair quote
- Free on-site inspection — a specialist identifies the crack or leak source, foundation type and severity.
- Diagnostic audit — we separate a simple crack injection from a drainage or structural issue, so you pay for the right fix.
- Fixed-price proposal — a written quote covering materials, labour, drainage and warranty.
Prefer a ballpark first? Use our cost calculator, or see crack injection cost for single-crack pricing. Call 1-800-277-5411 for a free assessment.
Frequently asked questions
How much does it cost to fix a cracked foundation in Ontario?
The cost to fix a cracked foundation in Ontario is typically $750–$1,500 per crack for polyurethane injection, the standard interior repair for a leaking poured-concrete crack. If the crack must be reached from outside, external foundation crack repair with excavation runs higher, roughly $150–$250+ per foot ($5,000–$20,000+). Structural cracks that indicate movement cost more. A free assessment confirms the crack type and price.
How much is foundation crack repair per crack?
Foundation crack injection usually costs $750–$1,500 per crack in Ontario, with shorter dry cracks near the low end and longer or actively leaking cracks toward the top. Price depends on crack length, width, whether water is present, and access. Poured-concrete foundations are injectable; block or stone walls need other methods.
What is the cost to fix a leaking basement?
The cost to fix a leaking basement ranges from about $750–$1,500 if a single crack is the source and can be injected, up to $3,500–$15,000+ (interior) or $5,000–$20,000+ (exterior) for an interior or exterior waterproofing system when seepage is widespread. The right price depends on where and why water is entering, the foundation depth, and access.
Why does basement crack repair cost vary so much?
Basement crack repair cost varies because a crack ranges from a dry hairline in a new build to a wide, leaking structural crack in an older home. Injection of a simple crack starts around $750; the same-looking crack with water damage, mould, or movement can require exterior repair or waterproofing costing thousands. Length, water, foundation type and access all drive the number.
Is crack injection or waterproofing cheaper?
Crack injection is cheaper — $750–$1,500 per crack — when a single poured-concrete crack is the only leak source. A full interior or exterior waterproofing system ($3,500–$15,000+ (interior) or $5,000–$20,000+ (exterior)) is needed when water enters at the cove joint or multiple points. Injection fixes a specific crack; waterproofing manages broader groundwater pressure. An inspection confirms which your basement needs.
How much does foundation leak repair cost?
Foundation leak repair cost is about $750–$1,500 for a single injectable crack and $3,500–$15,000+ (interior) or $5,000–$20,000+ (exterior) for an interior or exterior waterproofing repair where a crack has caused ongoing leaking and drainage is required. The final cost depends on the leak source, foundation depth and access.
How much does structural foundation repair cost?
Structural foundation repair — underpinning, piers or wall reinforcement — runs roughly $500–$800 per foot. These repairs address settling or bowing walls, not routine leaks. Horizontal cracks or inward-bowing walls should be assessed right away, as they can signal serious structural pressure.
Does homeowners insurance cover foundation repair?
Insurance rarely covers foundation repair from gradual issues like settling, seepage or normal cracking, which are considered maintenance. It may cover sudden, accidental damage such as a burst pipe. Coverage varies by policy, so confirm with your insurer. A DryShield inspection documents the cause, which can help with a claim.
Can I get a foundation repair estimate without an inspection?
We can give a planning range from the type of problem — crack injection versus waterproofing versus structural — but the final price needs an on-site look at the crack or leak source, foundation type, depth and access. The ranges on this page are a starting point; the free inspection is the confirmation step.
How urgent is a foundation crack?
Vertical hairline cracks are often minor settling and can be monitored, but any crack that leaks water, a horizontal crack, or a wall bowing inward should be assessed promptly — these can signal structural pressure. Addressing a crack early with a $750–$1,500 injection is far cheaper than a later structural repair.
Are there rebates for foundation or basement leak repair?
The repair itself is generally not subsidized, but sump pumps and backwater valves installed with it may qualify for City of Toronto (up to 80% of eligible cost), Peel and Halton rebates. DryShield is an eligible licensed contractor for these programs, and a free assessment confirms which components qualify.
What warranty comes with DryShield foundation repair?
DryShield’s eligible work carries a transferable lifetime warranty, and the company is fully insured with $5M liability coverage. As an 8-time HomeStars “Best of” winner with 25+ years of experience across the GTA and Southern Ontario, DryShield backs its foundation and crack repairs with written warranty terms provided at quote.
Related cost guides & calculators: Basement Waterproofing Cost · Crack Injection Cost · Crawl Space Encapsulation Cost
