Outdoor · Decks
Decks that stay level, winter after winter.
A deck is only as good as what holds it up. We dig footings below the frost line, frame to the Ontario Building Code and finish in pressure-treated wood, cedar or composite. We can also take an old deck that's still structurally sound and bring it back to life with new boards, railings and stairs.
What's included
The whole job, start to finish.
- Design and layout for your yard, including stairs and landings
- Drawings and the building permit when your deck needs one
- Footings below the frost line, framing and ledger attachment
- Pressure-treated, cedar or composite decking
- Wood, aluminum or glass railings
- Restoring older decks: new boards, railings and stairs on a sound frame
- Removing and disposing of an old deck
Timeline. Most decks take 1 to 3 weeks on site. If a permit is needed, allow a few extra weeks before we start.
Planning range · plus HST
New deck
$30–$90
per sq ft, deck, frame and footings; railings and stairs extra
Decking, framing and footings dug below the frost line. Railings, stairs, removal of an old deck and permit drawings are priced separately.
From our jobs
- Raised pressure-treated deck with stairs and railingsabout $15,000
Examples of past jobs, not a price for yours.
What moves the price
- Decking material
- Height off the ground (and whether you need a permit)
- Railing style
- Stairs and landings
- Removing an old deck
Estimator
What will it cost?
Set the size and options to see a planning range for your decks project. Then book a free estimate for a firm, written price.
03/Height
04/Extras
- RailingGuards are generally required more than 600 mm (about 2 ft) above the ground.
- Stairs$150–$350 per step4
Not sure of the size? A rough number is fine for budgeting. We measure exactly at the free on-site estimate.
Planning estimate
New deck
$8,500–$16,000
Plus HST. A range for budgeting, not a quote.
- Pressure-treated, 200 sq ft$6,000–$11,000
- Wood railing, about 42 ft$1,900–$3,600
- Stairs × 4$600–$1,400
From our jobs
- Raised pressure-treated deck with stairs and railingsabout $15,000
Examples, not prices for your project.
What moves this number
- Decking material
- Height off the ground (and whether you need a permit)
- Railing style
- Stairs and landings
- Removing an old deck
Your price is set in a written quote after we see the job. Site conditions, access and material choices can move it either way.
Local rules
What Ontario rules mean for your project.
Summarised from official sources. Rules vary by city and change over time, so we confirm them for your address.
When a deck needs a permit
In Mississauga, decks more than 0.61 m (about 2 ft) above the ground need a building permit. Toronto uses 60 cm. Oakville requires a permit for any deck attached to the house, whatever its height. We check the rule for your address and handle the drawings and application.
Decks (Town of Oakville)Footings at least 1.2 m down
Mississauga's deck guidance calls for footings at least 1.2 m (4 ft) below finished grade, on undisturbed soil. Shallower footings heave with the frost and leave a deck out of level.
Deck, porch or balcony permits (City of Mississauga)Guards above 600 mm
The Building Code generally requires guards (railings) where a deck is more than 600 mm (about 2 ft) above the ground. Railing choice is one of the biggest swings in deck price.
Ontario's Building CodeLucas and his team did an outstanding job on our deck. From the initial proposal to project completion, Lucas was highly professional, clear in communication, and true to his word. He worked diligently to meet a tight deadline and delivered a high-quality deck that not only looks fantastic but feels solid and well-crafted. Throughout the process, he kept us informed with regular updates, which gave us confidence in the progress. Overall, it was a great experience, and we would highly recommend Lucas and his team. Thank you, Lucas!
Questions
Decks: common questions.
Serving Mississauga, Toronto, Oakville, Brampton and Vaughan and the rest of the GTA.
Pressure-treated, cedar or composite?
Pressure-treated costs least up front and needs stain or sealer every few years. Cedar looks better and resists rot naturally. Composite costs the most but needs almost no maintenance. All three usually sit on a pressure-treated frame.
Can you fix my old deck instead of replacing it?
Often, yes. If the frame and footings are sound, new decking, railings and stairs can make an old deck look new for far less than a rebuild. We'll check the structure at the estimate and tell you honestly which makes sense.
When is the best time to build a deck?
We build from spring through fall. Booking in winter or early spring gets you on the schedule before the busy season and leaves time for a permit.
Guides
Read before you build.
Permits & rules · 6 min read
Do you need a permit for a deck in Mississauga, Toronto or Oakville?
When a deck needs a building permit in Mississauga, Toronto and Oakville, what the drawings show, how deep footings go and what a permit adds to cost.
Read the guideMaterials · 5 min read
Pressure-treated vs. cedar for fences, decks, pergolas and tables
How pressure-treated wood, cedar and composite compare on price, looks, weathering, upkeep and weight for GTA fences, decks, pergolas and picnic tables.
Read the guideOutdoor
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Free estimate
Ready for a firm price?
Estimates are free. We'll come out, measure, talk through options and send you a written quote.