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Fence and Deck Building & Repair Experts
Pressure-treated wood is the lower-upfront-cost decking material in the Niagara Region: Ontario-wide, installed pressure-treated decking runs roughly $45-65/sq ft, versus $65-95/sq ft for composite. Most standard deck builds in the Niagara Region run roughly $15,000-$35,000 overall, with Niagara Falls-area projects commonly landing around $8,850 (range $4,200-$18,600) and professional deck upgrades in Niagara trending $35-$75/sq ft. These are wide, self-serving 2026 marketing-content ranges, not a fixed price. Your actual cost depends on size, height, site access, and material. Book a real estimate for a number you can rely on.
A pressure-treated deck follows the same Ontario Building Code permit rules as any other deck material: generally a permit is needed if the deck is larger than 10 m2 (about 108 sq ft), OR more than 60 cm (about 24 inches) above grade, OR attached to the house. Below all three thresholds it is often permit-exempt, but zoning setbacks can still apply either way. Niagara Falls, St. Catharines, and Niagara-on-the-Lake each administer their own building department, so always confirm the current rule with your specific municipality before you build. See the full permit and bylaw guide for deck, fence, pergola, and shed projects across the Niagara Region.
Pressure-treated wood costs less upfront and gives a natural look, but in Ontario's climate it needs re-staining or sealing roughly every 1-2 years and has a shorter service life before boards need replacing. Composite decking costs more upfront but needs little to no annual finishing and holds up well against Ontario's 40-60 freeze-thaw cycles per year, which is the real stress test for any outdoor deck material here. Homeowners often see the higher composite cost break even against pressure-treated wood's maintenance costs somewhere around the 8-10 year mark, though that depends on how diligently a wood deck is maintained. Neither material is a wrong choice: it is a tradeoff between lower upfront cost plus more upkeep (pressure-treated wood) versus higher upfront cost plus less upkeep (composite). A pressure-treated deck built and maintained well is a genuinely solid, budget-friendly choice for a Niagara Falls yard; the maintenance schedule above is the real ongoing commitment that comes with the lower upfront price.
Ballpark, pressure-treated decking runs about $45-65/sq ft installed Ontario-wide, the lower end of the $45-95/sq ft range once composite is included. Most standard Niagara Region deck builds overall run about $15,000-$35,000. These are wide ranges, not a quote. Book an estimate for a number specific to your project.
Roughly every 1-2 years, pressure-treated wood needs re-staining or sealing to hold up against Ontario's climate. That upkeep, plus a shorter service life before boards need replacing, is the tradeoff for its lower upfront cost versus composite.
Composite holds up well against Ontario's 40-60 freeze-thaw cycles a year with little to no annual finishing, but costs more upfront. Pressure-treated wood costs less upfront but needs re-staining or sealing every 1-2 years. Higher composite cost often breaks even against pressure-treated wood's maintenance cost around 8-10 years.
The material does not change the permit rule. Usually yes if the deck is bigger than 10 m2 (about 108 sq ft), more than 60 cm (24 in) above grade, or attached to the house. Confirm with your municipality (Niagara Falls, St. Catharines, and NOTL each run their own building department).
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