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Deck & Gazebo work completed by Global Construction Homes near Mississauga, Ontario
Peel Region · City of Mississauga Building Division

Decks, gazebos, pergolas and privacy screens engineered for Ontario winters.

Design & quote
3 — 7 days
Permit review
2 — 6 weeks
Standard deck build
1 — 2 weeks
Deck + gazebo
2 — 4 weeks

Deck & Gazebo in Mississauga — the short answer

Deck and gazebo construction covers the design, permitting and building of raised or grade-level outdoor structures — including footings below the frost line, pressure-treated framing, and pressure-treated, cedar, composite or PVC decking. In the GTA in 2026, professionally built decks cost roughly $30 to $50 per square foot in pressure-treated lumber, $50 to $75 in cedar, $65 to $90 in composite, and $80 to $110 in PVC. In Mississauga, deck permits are issued by City of Mississauga Building Division, and a permit is generally required once a deck is attached to the house or sits more than 600 mm above grade.

What Mississauga houses are like

What we can build in a Mississauga backyard is set by grade, lot width and what the house can carry. Streetsville and Port Credit hold the oldest stock — village-scale homes, some pre-war, with the structural surprises that come with age. Erin Mills, Meadowvale and Applewood are 1970s and 80s. Churchill Meadows, East Credit and Central Erin Mills are 1995 onward with taller basements and modern services. Lorne Park and Mineola are estate lots where finish standards run highest.

Mississauga's lakefront and creek corridors fall under Credit Valley Conservation, which affects deck footings, additions and grading on properties near the Credit River and Etobicoke Creek.

Permits — City of Mississauga Building Division

Mississauga requires a building permit and registration of second units, plus ESA electrical inspection. Older Erin Mills and Applewood basements frequently sit just under the 1.95 m ceiling requirement, so we measure at the lowest duct or beam before quoting a legal suite.

Deck & Gazebo pricing

  • Pressure-treated deck$30 — $50 / sq ft
  • Cedar deck$50 — $75 / sq ft
  • Composite deck$65 — $90 / sq ft
  • PVC deck$80 — $110 / sq ft
  • Gazebo or pergola$12,000 — $38,000

A 200 sq ft pressure-treated deck typically lands near $8,000; the same deck in composite with glass railing is $20,000 or more. Helical piles instead of poured footings add roughly $350 to $600 per pile.

Neighbourhoods

Streetsville · Port Credit · Erin Mills · Lorne Park · Meadowvale · Churchill Meadows · Cooksville · Applewood · Clarkson · Mineola

Code requirements

These apply to every deck & gazebo project in Mississauga. City of Mississauga Building Division is the final authority and we confirm each item against your specific property before quoting.

Permit trigger
Attached to the house, or more than 600 mm (24 in) above grade
Footing depth
Below the frost line — typically 1.2 m (4 ft) in Southern Ontario
Guard height
900 mm minimum; 1070 mm when the walking surface is over 1.8 m above grade
Guard openings
No opening may pass a 100 mm (4 in) sphere
Stair rise / run
125 — 200 mm rise, 255 mm minimum run
Ledger attachment
Through-bolted or structural screws into rim joist, flashed above and behind
What's included

01

Multi-level & wrap-around decks

Engineered framing, stair runs with code-compliant rise and run, and level changes that follow your grade instead of fighting it.

02

Gazebos & pergolas

Freestanding and attached structures with post bases above grade, hardware-connected beams, shingled or louvred roofs, and screening options.

03

Composite & PVC decking

Trex, TimberTech and PVC systems installed with hidden fasteners, breather gaps, and picture-frame borders that cover the cut ends.

04

Cedar & pressure-treated builds

Kiln-dried cedar and PT framing with joist tape, hot-dip galvanised hardware and a first coat of sealer before we hand it over.

05

Railings & glass panels

Aluminium, glass, cable and wood railings at code height, with posts through-bolted to the frame rather than face-screwed to the rim.

06

Privacy screens & outdoor rooms

Slatted privacy walls, under-deck storage, integrated benches and planters, low-voltage stair and post lighting.

Mississauga questions

Not seeing your question? Call or text (647) 928-3544 — we answer same day, usually within 2 hours.

City of Mississauga Building Division handles permits for Mississauga. Mississauga requires a building permit and registration of second units, plus ESA electrical inspection. Older Erin Mills and Applewood basements frequently sit just under the 1.95 m ceiling requirement, so we measure at the lowest duct or beam before quoting a legal suite. We prepare the drawings, submit the application, respond to plan-review comments and call every inspection through to a closed permit, so you are not standing in a queue at City Hall.

Deck & Gazebo — Mississauga

We come to you in Mississauga, measure on site, and hand back a written line-by-line quote at no cost. Same day, usually within 2 hours response.

Same day, usually within 2 hours· Serving the GTA, Hamilton, Guelph & Kitchener

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