If your basement window well is rusted, flooding, or pulling away from the wall, replacing it isn’t just a cosmetic fix—it’s a structural necessity. A damaged window well can lead to serious moisture problems, basement leaks, or even foundation damage.
This article breaks down everything homeowners need to know about window well replacement cost in Toronto, including material choices, installation fees, optional add-ons, and money-saving tips. Whether you’re budgeting for a single well or planning to upgrade several around your property, this guide will help you understand the true costs and value of professional service.
Average Window Well Replacement Cost in Toronto
The typical cost of window well replacement in the GTA ranges from $1,000 to $5,000 per well. This price depends on various factors such as materials, drainage upgrades, depth, access, and whether you’re also replacing the basement window.
Here’s a breakdown of common price components:
Window Well Replacement Cost Breakdown
| Component | Estimated Cost (CAD) | Notes |
| Window well (material only) | $400 – $2,800 | Cost depends on type and size |
| Labor & installation | $400 – $1,500 | Excavation, fitting, sealing, backfill |
| Drainage system | $300 – $1,200 | Gravel base, drainpipe to weeping tile |
| Removal of old well | $50 – $300 | Includes hauling and disposal |
| City permits (if required) | $50 – $300 | For egress or structural changes |
| Cleanup & landscaping | $300 – $1,000 | Optional, for restoring yard or garden |
| Total estimate | $1,000 – $5,000+ | Based on scope, complexity, and materials |
What Impacts the Cost to Replace a Window Well?
Several factors contribute to your cost to replace a basement window well. Knowing these in advance helps you budget more accurately and avoid surprises during the installation process.
1. Material Type
Materials not only affect appearance but also longevity and resistance to rust or corrosion.
Window Well Cost by Material
| Material | Cost Range (CAD) | Pros | Cons |
| Galvanized Steel | $400 – $800 | Affordable, easy to install | May rust over time |
| Plastic / Composite | $600 – $1,600 | Rustproof, lightweight | Can warp under heavy pressure |
| Fiberglass | $1,000 – $2,000 | Durable, modern look | Higher upfront cost |
| Concrete / Stone | $1,500 – $2,800 | Extremely durable, custom aesthetics | Heavy, labor-intensive |
If you’re replacing multiple wells or want a maintenance-free option, investing in composite or fiberglass may be the better long-term choice.
2. Size and Accessibility
Larger wells—especially those for basement bedrooms that must meet egress code—cost more due to deeper digging and reinforced structural support. Tight access between homes can also increase labor fees if digging equipment is limited.
3. Drainage Requirements
A major reason homeowners seek basement window well replacement is poor drainage that causes leaks. A proper system includes:
- Gravel base
- Vertical drainage pipe
- Connection to foundation’s weeping tile
Neglecting drainage could lead to repeat issues, so professionals often recommend a full replacement with updated drainage for peace of mind.
4. Window Replacement (Optional)
Often, the window inside the well is cracked, leaky, or outdated. Replacing the basement window at the same time is efficient and cost-effective.
Cost to Replace Basement Window by Type
| Window Type | Average Cost (CAD) | Notes |
| Fixed / Picture | $100 – $400 | Simple design, no opening |
| Single-hung | $150 – $500 | Common choice, opens vertically |
| Casement | $300 – $1,000 | Opens outward, egress-compliant |
A new egress window may be required by law if the basement room is considered livable space.
5. Covers and Add-Ons
Window well covers keep out debris, water, and pests—especially during winter. They’re an optional but smart upgrade.
Common Add-On Costs
| Add-On | Estimated Cost (CAD) | Purpose |
| Clear polycarbonate cover | $150 – $400 | Keeps snow and rain out |
| Custom metal grate | $300 – $700 | Durable protection with airflow |
| Window well ladder | $100 – $250 | Required for deep egress wells |
DIY vs. Hiring a Pro: What’s the Best Option?
While it may seem like a manageable project, replacing a window well involves more than digging a hole. Improper grading, sealing, or drainage can lead to expensive foundation damage.
DIY vs. Professional Comparison
| Aspect | DIY | Professional |
| Equipment | You must rent or buy | Included in cost |
| Drainage planning | Requires knowledge | Properly assessed |
| Permit handling | You apply yourself | Managed by contractor |
| Foundation sealing | Risk of error | Guaranteed & warrantied |
| Time required | 1–2 full days | Completed in hours |
| Cost | $500 – $1,500 | $1,000 – $5,000 |
Most homeowners in Toronto prefer hiring licensed professionals for peace of mind, safety, and code compliance—especially for finished basements or legal apartments.
When Should You Replace a Window Well?
If you’re unsure whether repair or replacement is necessary, look out for these signs:
- Visible rust, warping, or collapse
- Frequent moisture intrusion or pooling
- No existing drainage system
- Well pulling away from the wall
- Basement mold or wall stains near the window
Sometimes a quick window well repair is possible (like re-caulking or drain flushing), but if structural damage is present, full replacement is recommended.
Window Well Repair vs. Replacement Cost
| Service Type | Cost Range (CAD) | Scope |
| Basic Repair | $200 – $600 | Seal cracks, flush drains, minor fixes |
| Full Replacement | $1,000 – $5,000 | Includes new well, drain, seal, finish |
How to Lower the Cost of Window Well Installation
Here are proven ways to reduce your cost to install window wells without compromising quality:
- Bundle with other services: Save by combining with waterproofing, crack repair, or sump pump installation.
- Choose practical materials: Plastic and fiberglass offer good value and longevity.
- Schedule offseason work: Spring and fall can bring better rates.
- Use clear covers: Avoid clogs and reduce long-term maintenance.
- Get multiple quotes: Compare contractors to ensure fair pricing.
Window Well Installation Cost in Toronto: What You Should Know
For homeowners planning to add a brand-new window well—whether for a basement remodel, legal apartment conversion, or to improve drainage around an existing window—the window well installation cost depends on several factors. Unlike replacement, installation may involve cutting into the foundation, creating a new window opening, and ensuring full compliance with local building codes.
Average Cost to Install a Window Well
| Type of Installation | Cost Range (CAD) | Details |
| Basic window well install | $1,000 – $2,500 | Includes digging, gravel base, drain, anchoring, and sealing |
| Egress window well | $2,500 – $5,000+ | Requires deeper well, safety ladder, large cutout for egress window |
| Full install with new window | $3,500 – $7,000+ | Includes custom window, lintel, well, drainage, sealing, permits |
These numbers reflect typical pricing in the Toronto area and assume professional installation by an experienced crew like Leaquida Waterproofing.
What Affects the Cost of Installing a Window Well?
Several components influence your total cost to install a basement window well:
- Window size and type: Larger or custom windows increase both materials and labor costs.
- Foundation cutting: New openings require precision concrete cutting and structural support.
- Drainage connection: Costs rise if the weeping tile is inaccessible or needs repair.
- Material selection: Decorative or heavy-duty wells cost more than standard galvanized steel.
- Permitting: Required for egress installations and structural alterations.
Cost Comparison: Installation vs. Replacement
| Service | Typical Cost (CAD) | Includes |
| Replacement (existing) | $1,000 – $5,000 | Remove old well, install new one, reconnect drainage |
| Installation (new) | $1,500 – $7,000+ | Cut foundation, install window, drainage system, full well |
As you can see, window well installation cost is typically higher than replacement—especially if you’re adding a brand-new window and cutting through foundation walls. However, the long-term value in light, ventilation, and safety makes it a worthy investment for many homeowners.
Final Thoughts
Your basement window well replacement cost depends on a range of factors—materials, depth, drainage, labor, and optional upgrades. For most Toronto homeowners, the investment pays off by preventing future water intrusion, improving basement livability, and enhancing home resale value.
At Leaquida Waterproofing, we provide reliable, code-compliant, and efficient window well installation and replacement services across Toronto and the GTA. We assess every project individually to deliver solutions that last—and we do it with care, precision, and transparency in pricing.
If your window wells are failing or you’ve noticed basement leaks after rain, contact us today for a free inspection and personalized estimate.
FAQ: Window Well Replacement & Installation Cost
The window well replacement cost in Toronto typically ranges from $1,000 to $5,000 per well, depending on factors like material type, size, depth, drainage requirements, and access. Basic replacements using galvanized steel are more affordable, while larger or decorative wells—especially for egress windows—cost more due to additional excavation and safety features.
The cost to install basement window wells from scratch usually falls between $1,500 and $7,000, especially if a new basement window is also being added. This price includes excavation, drainage connection, sealing, and permits. Installation is more complex and expensive than replacement, particularly when cutting through foundation walls is involved.
In some cases, yes. The cost to repair a window well is usually $200 to $600, depending on the issue. Common repairs include resealing gaps, cleaning or unclogging drains, and patching rust. However, if the well is collapsing, has poor drainage, or is pulling away from the foundation, full replacement is often the safer and more cost-effective option.
The basement window well replacement cost is generally higher because it involves deeper excavation, more robust drainage systems, and tighter waterproofing standards. Above-grade wells (used for daylight or ventilation) are shallower and easier to install, reducing both labor and material costs.
While small surface repairs may be DIY-friendly, the cost to replace basement window well professionally is worth it. A proper install requires expertise in excavation, drainage, grading, and sealing to avoid long-term moisture problems. DIY errors can lead to foundation leaks and even mold growth in finished basements.
Yes, especially if you’re installing or enlarging an egress window or altering foundation structure. The permit cost is usually around $100 to $300, and working with a licensed contractor ensures everything complies with Ontario Building Code standards.
CLOGGED OR BROKEN WEEPING TILE