Cost Guide
Foundation Crack Repair Cost in Chilliwack, BC
Foundation crack repair in Chilliwack typically costs $600–$2,000 per crack for interior injection, or $5,000–$15,000 for a full interior drain system. Here's exactly what drives the price — and how to avoid overpaying.
Updated May 2026 · CAD prices
2026 Pricing: Common Repair Methods
| Repair Type | Typical Cost (CAD) | Best For |
|---|---|---|
| Polyurethane crack injection | $600–$1,200 per crack | Active leaks, wet cracks, waterproofing |
| Epoxy crack injection | $800–$2,000 per crack | Dry structural cracks, strength restoration |
| Carbon fibre wall strap | $400–$800 per strap | Bowing walls, horizontal cracks |
| Interior perimeter drain (weeping tile) | $5,000–$15,000 | Chronic wet basements, high water table |
| Sump pump installation | $1,200–$2,500 | Water management, paired with drain system |
| Exterior waterproofing (excavation) | $3,000–$5,500 per crack | No interior access, soil drainage correction |
Polyurethane vs Epoxy: Which Do You Need?
This is the most important decision in foundation crack repair — and the most common reason DIY repairs fail. Choosing the wrong material for your crack type wastes money and leaves the problem unsolved.
Polyurethane Injection
$600–$1,200 per crack
- Flexible — adapts to slight concrete movement
- Expands on contact with moisture to fill the full crack
- Ideal for active leaks and wet cracks
- Best waterproofing performance
- Does not restore structural strength
Epoxy Injection
$800–$2,000 per crack
- Rigid — bonds concrete back to near-original strength
- Requires a dry crack for proper adhesion
- Best for structural cracks with no active water
- Stronger than the original concrete when cured
- Fails if moisture is present during injection
Fraser Valley note: Most residential cracks in Chilliwack present with moisture — from frost heave, clay soil expansion, or seasonal groundwater. Polyurethane injection is the right call for the majority of BC basement crack repairs.
What Affects the Price Most
1. Crack severity and width
Hairline cracks under 2 mm are quick injections. Cracks wider than 6 mm — especially if growing — may require larger volumes of material and more injection ports. Horizontal cracks that indicate wall bowing escalate costs significantly because the structural issue (not just waterproofing) must be addressed.
2. Interior vs exterior access
Interior injection through the wall face costs a fraction of exterior repair, which requires excavation alongside the foundation. The only time exterior work makes sense is when interior access is blocked (finished basement, insulation) or when the crack is caused by drainage failure that must be corrected outside.
3. Number of cracks
Most contractors have a minimum call-out fee of $400–$600 covering the assessment and first crack. Additional cracks at the same visit are significantly cheaper per crack — expect $300–$600 each for secondary cracks on the same job.
4. Finished basement
If the crack is behind drywall or insulation, preparation and cleanup time increases. In some cases, interior drain system installation is more cost-effective than repeatedly excavating through finished walls to access individual cracks.
5. Root cause
If the crack is caused by a drainage problem around your foundation, repairing the crack without addressing the drainage means the crack — or a new one nearby — will return. A proper assessment identifies whether you need injection only or injection plus drainage correction.
When Crack Injection Isn't Enough
Crack injection solves the symptom. If the underlying drainage is failing, hydrostatic pressure will eventually crack through nearby concrete or re-open repaired areas. Signs you need more than injection:
- Multiple cracks appearing over time in different parts of the wall
- Efflorescence (white mineral deposits) across a wide area of the wall
- Standing water on the basement floor after rain
- Horizontal or diagonal cracks (structural pressure, not just shrinkage)
- Cracks that reopen within 1–2 years of being repaired
In these cases, an interior perimeter drain system — weeping tile running around the inside perimeter of the basement slab, draining to a sump pit — is the permanent solution. Cost: $5,000–$15,000 depending on basement size. It eliminates hydrostatic pressure entirely rather than fighting individual cracks one at a time.
How to Compare Contractor Quotes
Three things to confirm before accepting any quote:
- Which injection material are they using and why? If they can't explain why polyurethane vs epoxy for your specific crack, they're guessing.
- What guarantee or follow-up do they offer? A reputable contractor should provide a written scope of work and stand behind their repair. Ask for it in writing before work begins.
- Are they addressing root cause or just the crack? Ask directly: "If I have a drainage problem, will this crack come back?" A good contractor will tell you honestly.
Frequently Asked Questions
How much does foundation crack repair cost in Chilliwack?
Interior polyurethane injection runs $600–$1,200 per crack for active leaks. Structural epoxy injection runs $800–$2,000 per crack. If exterior excavation is required, expect $3,000–$5,500 per crack. A full interior perimeter drain (weeping tile) system runs $5,000–$15,000 depending on basement size.
Is interior or exterior crack repair better?
Interior injection is the right choice for most residential cracks — less disruption, lower cost, and equally effective for waterproofing. Exterior repair is reserved for cracks where interior access is blocked or where the root cause requires soil correction around the foundation.
Can I repair a foundation crack myself to save money?
DIY epoxy kits ($50–$150) exist but fail frequently. The most common reasons: wrong product (polyurethane vs epoxy), inadequate injection pressure, and missing an active water source behind the crack. Professional-grade injection with proper prep lasts 20+ years. Most DIY repairs need professional correction within 1–3 years.
Does home insurance cover foundation crack repair in BC?
Generally no. Insurance covers sudden accidental events (burst pipe, earthquake). Foundation cracks from soil movement and seasonal freeze-thaw are classified as gradual deterioration — a maintenance item. Some policies cover resulting water damage from a covered event. We provide a detailed written report to support any insurance inquiry.
We Serve These Communities
Based in Chilliwack — serving the greater Fraser Valley.
Get an Accurate Quote for Your Chilliwack Foundation
The only way to get an accurate number is an on-site assessment. We inspect your foundation, identify the crack type and cause, and give you a written quote with fixed pricing — no obligation, no pressure.
Call — Free Inspection Or fill out our contact form