Window Replacement Cost in St. John's (2026)
Average cost in St. John's
$6,500 – $28,000
$650 – $2,800 per sq ft
In St. John's, the average is $10,701 and most projects cost between $6,500 and $28,000, or about $650 – $2,800 per sq ft. Prices are before tax and based on 10 sources.
Cost Breakdown
ItemizedHigh-spec triple-pane & wind-rated units
58%
Professional installation & flashing
30%
Removal of old units & debris hauling
10%
City of St. John's building permits
2%
HST at 15%
📋What's Included
ScopeTypically Includes
- Standard vinyl double-hung windows
- Removal of old windows
- Installation & insulation
- Interior trim
- Cleanup
Typically Excludes
- Custom or specialty shapes
- Triple-pane or premium glass
- Exterior trim or cladding
- Structural modifications
- Bay or bow windows
Based on replacing 10 standard-size windows with vinyl double-hung.
🧮Estimate your project
LiveYour estimate in St. John's
Likely range $6,500 – $23,542
- Materials58%$6,207
- Labor30%$3,210
- Disposal & Site Prep10%$1,070
- Permits & Admin2%$214
Vinyl
$10,701
Fiberglass
$14,739
Wood
$18,778
Aluminum-clad Wood
$22,816
Calibrated to 10 researched sources for St. John's. Before tax. Real quotes vary with site conditions.
📈Price Momentum
Year-over-year~1 year ago
$10,410
Today
$10,701
Window Replacement in St. John's is ↑ 2.8% compared to roughly a year ago — about $291 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 Window Replace Contractors in St. John's
Verified providersEastern Siding & Window World
5 Thomas Byrne Dr, Mount Pearl, NL A1N 0A6, Canada
81 reviews
Rydel Roofing, Siding, Windows & Doors
43 Welland St, St. John's, NL A1A 5B6, Canada
81 reviews
PW Windows, Doors, & Hardware Ltd
161 Glencoe Dr, Mount Pearl, NL A1N 4S7, Canada
22 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
Yes, the City of St. John's requires a permit for window replacements. The fee is calculated at $9 per $1,000 of the estimated construction value, with a minimum fee of $50. For heritage areas, additional approvals from the Heritage Advisory Committee may be required.
Due to extreme wind gusts reaching 140 km/h and high annual precipitation, triple-pane windows with high-wind pressure ratings and salt-corrosion resistant hardware are standard. Energy Star certified units are recommended to combat the high heating costs associated with the local climate.
The Provincial Home Repair Program (PHRP) provides forgivable loans up to $5,000 for low-income homeowners requiring essential repairs, including windows. Additionally, the City of St. John's offers Heritage Financial Incentives which can waive permit fees and provide grants for properties in designated heritage zones.
St. John's faces a limited local contractor pool and higher shipping costs for specialty materials from mainland Canada. This often results in labor rates ranging from $200 to $450 per window, which is roughly 10-15% higher than the national average for similar retrofit projects.
📊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 months 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.