Basement Finishing Cost in Toronto (2026)
Average cost in Toronto
$35,000 — $165,000
$35 — $150 per sq ft
Cost Breakdown
ItemizedSkilled trades and general contracting
50%
Drywall, flooring, and finishes
30%
Plumbing, HVAC, and Electrical
12%
City fees and architectural drawings
8%
HST at 13%
📋What's Included
ScopeTypically Includes
- Framing & drywall
- Basic flooring (LVP or carpet)
- Electrical (outlets & lighting)
- Egress window (if required)
- Painting
- Basic bathroom rough-in
Typically Excludes
- Full basement bathroom
- Built-in bar or kitchen
- Home theater wiring
- Waterproofing (separate cost)
- Permits & inspections
Assumes an unfinished basement with existing concrete floor and basic utilities.
🧮Estimate Your Cost
InteractiveEstimated Cost
$30,120 — $45,180
Based on 9 sources and market data for Toronto. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
$74,688
Today
$78,870
Basement Finishing in Toronto is ↑ 5.6% compared to roughly a year ago — about $4,183 more on the average project.
Comparison derived from the year-over-year change rate, not a month-by-month price index. We don't store historical snapshots yet — when we do, this will become a real time series.
🏢Top Basement Finish Contractors in Toronto
Verified providersAstaneh Construction
3080 Yonge St Ste 6060, Toronto, ON M5M 1A1, Canada
122 reviews
The Reno Pros
2 St Clair Ave W 18th Floor, Toronto, ON M4V 1L5, Canada
66 reviews
CSG Renovation
30 Powerhouse St 101 Office G12, Toronto, ON M6H 0C6, Canada
72 reviews
Harmony Basements
156 Chrislea Rd #4, Woodbridge, ON L4L 8V1, Canada
86 reviews
Provider data sourced from public business directories. Ratings and reviews are public and may change. LookupCost is not affiliated with listed providers.
💬What People Actually Paid
Community❓Common Questions
A legal secondary suite typically costs between $90,000 and $165,000. This includes mandatory 2026 code requirements such as fire-rated separation, interconnected smoke alarms, and dedicated HVAC zones, which add roughly $15,000 to $25,000 over a standard finish.
City of Toronto permit fees generally range from $1,000 to $2,500. However, homeowners should budget an additional $2,000 to $5,000 for professional BCIN-certified drawings or architectural plans required for the application.
Yes, especially in older Toronto neighborhoods like The Annex or Leaside. If the foundation requires internal or external waterproofing before finishing, it adds $10,000 to $20,000 to the total project budget.
Adding a full 3-piece bathroom typically costs between $12,000 and $20,000. A significant portion of this cost ($5,000+) is attributed to concrete slab cutting and plumbing rough-ins if the drains are not already present.
📊Our Methodology
How we collect dataAggregated from 5+ verified web sources and cost databases
Licensed contractor estimates and regional cost guides
Government construction and labor statistics
Community-reported project costs and reviews
Last data collection: 1 weeks ago. Updates run weekly. All costs in CAD.
About this data
Cost figures are estimates synthesized from public market data using AI research and refreshed regularly. Real project costs vary by scope, materials, contractor, and site conditions. Always get verified quotes from licensed contractors for your specific project.
Spotted bad data? Let us know — we'll review and update.