Basement Finishing Cost in St. John's (2026)
Average cost in St. John's
$30,000 — $120,000
$30 — $120 per sq ft
Cost Breakdown
ItemizedFraming, drywall, flooring, and fixtures
52%
Skilled trades and general contracting
38%
Moisture barriers and foundation sealing
8%
City of St. John's building, electrical, and plumbing fees
2%
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 8 sources and market data for St. John's. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
$56,496
Today
$59,660
Basement Finishing in St. John's is ↑ 5.6% compared to roughly a year ago — about $3,164 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 St. John's
Verified providersWise Cracks NL
155 Torbay Rd Suite 51024, St. John's, NL A1A 5G6, Canada
158 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
Homeworx Modular Homes & Renovations
84 O'Leary, St. John's, NL A1B 2C7, Canada
12 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
As an island province, Newfoundland faces higher material costs due to shipping and logistics. In 2026, contractors report that imported building supplies like specialized insulation and flooring can cost 10-15% more than in mainland hubs like Toronto or Halifax.
The City of St. John's charges $9 per $1,000 of construction value for renovations. For a typical $65,000 project, the building permit is approximately $585, plus fixed residential fees of $72.60 for electrical and $42.24 for plumbing permits.
Yes, to meet National Building Code standards adopted in NL, any basement bedroom must have at least one egress window. In 2026, the cost for professional installation, including concrete cutting and a window well, ranges from $2,500 to $5,300 per window.
Homeowners in St. John's can expect an average ROI of approximately 70%. With the 2026 housing shortage in NL, finished basements—especially those configured as legal secondary suites—command a significant premium in the local resale and rental markets.
📊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: 4 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.