Basement Finishing Cost in St. John's (2026)
Average cost in St. John's
$25,600 — $86,400
$32 — $108 per sq ft
Cost Breakdown
ItemizedContractor fees and trades labor
45%
Framing, drywall, flooring, and paint
35%
Wiring, lighting, and pipe rough-ins
15%
City of St. John's building permits
5%
HST at 15%
📋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
$24,576 — $36,864
Based on 6 sources and market data for St. John's. Actual costs may vary depending on specific project requirements.
🏢Top Basement Finish Contractors in St. John's
Verified providersWise Cracks NL
155 Torbay Rd Suite 51024, St. John's, NL A1A 5G6, Canada
157 reviews
Reshape Consulting Inc.
50 Pippy Pl Unit 11, St. John's, NL A1B 4H7, Canada
25 reviews
DEHTEROV Services - Renovations and Design
44a Lady Anderson Street, St. John's, NL A1B 0G8, Canada
15 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, finishing an 800 sq ft basement in St. John's typically costs between $25,600 and $86,400, with an average cost of around $47,200 depending on the quality of finishes and whether a bathroom is included.
The cost per square foot ranges from $32 for a basic budget finish to $108 for premium, high-end renovations, with the average sitting around $59 per square foot.
Yes, the City of St. John's requires building permits for basement renovations, especially when adding bedrooms, structural framing, electrical, or plumbing. Permit fees generally account for about 5% of the budget, ranging from $500 to $2,000.
Adding a standard 3-piece bathroom to your basement renovation in St. John's typically adds $8,000 to $18,000 to your total project cost, depending on existing plumbing access and fixture quality.
📊Our Methodology
How we collect dataAggregated from 6+ 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: today. Updates run weekly. All costs in CAD.