Basement Finishing Cost in Windsor (2026)
Average cost in Windsor
$32,000 — $115,000
$35 — $75 per sq ft
Cost Breakdown
ItemizedSkilled trades (Electrical, Plumbing, HVAC)
40%
Lumber, drywall, flooring, and fixtures
30%
Interior membranes and crack repairs
15%
City of Windsor fees and BCIN drawings
5%
Painting, baseboards, and lighting
10%
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
$25,080 — $37,620
Based on 12 sources and market data for Windsor. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
$58,223
Today
$61,483
Basement Finishing in Windsor is ↑ 5.6% compared to roughly a year ago — about $3,260 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 Windsor
Verified providersJSM Construction Limited
988 Watson Ave, Windsor, ON N8S 3T2, Canada
129 reviews
DC Basement Waterproofing
2221 Dougall Ave, Windsor, ON N8X 1S7, Canada
397 reviews
RSW HOME RENOVATION
192 Hampton Crescent, Windsor, ON N9E 4M4, Canada
67 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
In 2026, the City of Windsor charges a minimum permit fee of $250.00. For finished basement floor areas, the rate is approximately $5.00 per square metre ($0.46 per sq ft), plus additional mechanical and plumbing fees which typically add $500 per dwelling unit.
Adding a 3-piece bathroom to a Windsor basement typically adds between $10,000 and $18,000 to the total project cost. This includes roughly $2,500 to $8,000 for plumbing rough-ins, especially if concrete cutting is required to reach existing drain lines.
A full legal basement apartment conversion in Windsor currently ranges from $60,000 to $120,000. This higher cost accounts for mandatory fire separation, separate entrances (which alone can cost $15,000-$25,000), and egress windows that meet the Ontario Building Code.
Yes, finishing a basement increases the assessed value of your home. While the City of Windsor held a 0% tax levy increase in early 2026, the MPAC assessment of your 'new' living space can lead to a moderate increase in annual property taxes based on the added square footage.
📊Our Methodology
How we collect dataAggregated from 12+ 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: 3 days 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.