Detailed cost breakdown for deck renovation in London, Ontario.
Budget Range
$7,314 - $16,956
Average Cost
$10,450 - $24,225
Premium Range
$16,720 - $38,760
| Category | Low Estimate | High Estimate |
|---|---|---|
| Structure & Foundation | $2,850 | $5,700 |
| Decking Material | $2,375 | $4,750 |
| Railings | $950 | $2,375 |
| Stairs | $760 | $1,900 |
| Lighting | $475 | $1,425 |
| Pergola / Cover | $2,850 | $7,600 |
| Permits | $190 | $475 |
| Total | $10,450 | $24,225 |
Deck projects offer excellent outdoor living value in Canadian summers but material choice dramatically affects longevity and maintenance. Pressure-treated wood is cheapest upfront ($15–25/sq ft installed) but requires annual staining. Composite decking ($30–55/sq ft) costs more but lasts 25–50 years with minimal maintenance. Plan for proper footings below the frost line — in most Canadian cities, that's 4–5 feet deep.
Material choice is the #1 cost driver: cedar ($25–40/sq ft), composite ($30–55/sq ft), or exotic hardwoods like Ipe ($50–80/sq ft). Railings add $50–120 per linear foot. Multi-level decks cost 50–75% more than single-level. Built-in features like benches, planters, and pergolas add $2,000–$10,000.
💡 Pro Tip
Build your deck in fall or early spring when contractors are less busy — you can often save 10–15% on labour and have it ready for summer use.
London, Ontario offers renovation costs 15–20% below Toronto, making it one of the best-value markets in the province. The city's mix of Victorian homes in Old North and Wortley Village alongside newer suburban developments provides diverse renovation opportunities. Western University's presence creates steady demand for rental property upgrades. Contractor availability is generally good with 2–4 week lead times.
The City of London requires permits for structural, plumbing, electrical, and HVAC work. Applications are processed through the Development and Compliance Services division. Simple residential permits are issued within 10 business days. London offers a pre-consultation service for complex projects.
London sits in southwestern Ontario's snow belt, receiving 194 cm of snow annually — significantly more than Toronto. This heavy snowfall means roofing must handle greater snow loads, and ice dam prevention is critical. The humid summers require proper ventilation in any renovation, especially basements.
In 2026, a deck renovation in London costs between $7,314 (budget) and $38,760 (premium). The average standard cost ranges from $10,450 to $24,225.
London has a cost index of 95% relative to the Canadian national average. Prices are near the Canadian average. This index accounts for local labour costs, materials, and permit fees.
A standard deck renovation typically takes 1 to 3 weeks. Premium projects or unexpected issues (e.g. structural problems) can extend the timeline. Always get a detailed schedule from your contractor.
A deck renovation typically yields a 65–75% return on investment at resale in Canada. ROI depends on material quality, the local real estate market in London, and the property's condition.