The GTA Fieldbook·Halton Region·2026 edition
Burlington decks tend to follow the city's two halves — newer Alton and Orchard subdivisions favour large rear decks; established neighbourhoods south of the QEW often need rebuilds rather than new construction.
Editor's note — the calculator below uses the same coefficients as the homepage, tuned to typical Burlington lots. Numbers move with your inputs in real time; nothing is gated.
Adjust the inputs to match your project. Numbers update live.
Estimated total
Live≈ $43/sq ft–$72/sq ft installed, before HST
§ Cost levers
Adjust the inputs above to model different scenarios — material choice, height, and railing are the biggest cost levers. The numbers reflect installed totals from current GTA contractor rates, before HST.
§ II. Local context
Halton Region · approx. 187K residents. The notes below are what tends to differ from the GTA average when builders quote in this city.
Burlington's deck market is defined by an unusually high share of rebuild work compared to fresh-build construction. Roseland, Aldershot, Tyandaga, and the established South Burlington streets south of the QEW make up the bulk of rebuild volume — 1960s and 70s housing stock, original decks at end-of-life, and ledger-replacement work against aged stucco, brick, or aluminum siding. North Burlington (Alton and Orchard) is the inverse pattern: newer 2000s and 2010s subdivisions with engineered walkouts and clean rear yards where the typical project is a first-time deck. The same 16×14 build can swing $3–5K between a south-end rebuild (carrying demolition, disposal, and ledger-repair line items) and a north-end new build of the same scope. Cedar still has a meaningful local presence for visible parts of the deck, more so than in most of the GTA. Composite has overtaken pressure-treated as the default on new builds but PT remains the most common material on rebuilds with budget constraints.
Most attached decks, and any deck more than 24″ above grade, require a building permit in Ontario. Setback and lot-coverage rules are set locally — the City of Burlington's Building Department processes applications..
Always confirm setbacks and lot-coverage with your municipality before finalizing the design — rules vary at the lot level.
Burlington deck permits are processed by the City of Burlington's Building Department. The Ontario Building Code 24″-or-attached threshold applies; the Burlington-specific consideration is the high share of rebuild work, which adds an additional layer to the application. For rebuilds, the city typically wants documentation of what's being removed (the existing deck) and confirmation that no enclosed structure is being created without separate review. If the existing deck has an associated permit on file, that history matters; if it doesn't (common with decks built before the 1990s), the new application is treated as a fresh build and may need additional site information. Ask the contractor whether they typically pull the original permit history as part of the application — most reputable Burlington rebuild crews do this routinely. South-end heritage considerations apply in pockets of Roseland and Old Burlington. Conservation Halton has jurisdiction over lots near Bronte Creek and Hidden Valley, which can extend the review timeline for any deck within the regulated area. Contractor-filed permits are common; confirm in writing.
Burlington has an unusually high share of rebuild work compared to new builds, especially in Roseland, Aldershot, and the older South Burlington streets. Demo and disposal of an existing deck adds a per-square-foot line that doesn't show up on a fresh-build quote, and ledger replacement on 1960s and 70s siding often requires extra waterproofing detail. North-end Alton and Orchard projects are typically cleaner first-builds.
§ II.b Neighbourhood-by-neighbourhood
Established south Burlington with mature housing stock and lake-facing or lake-adjacent lots. The dominant project is rebuild on an aged deck, often involving design changes from the original footprint. Lake-facing lots sometimes warrant raised configurations with stairs to grade — the framing cost is higher but the view typically justifies it.
Older central Burlington north of the QEW with a wide range of lot patterns. Rebuild work is common; the housing stock varies enough that contractors here need flexibility on framing approach. Cedar is more often a primary or accent material here than in other Burlington areas.
Sits on the lower escarpment with some grade variation. Multi-level deck configurations are more common here than on flatter Burlington lots because of how the lots step down from the road. The framing math is more complex; verify the structural plan in writing.
Newer north Burlington subdivisions, mostly 2000s through 2010s detached. Clean walkout grades and engineered rear yards make these the easiest Burlington projects to quote — standard rectangular composite walkouts with aluminum railing dominate.
Mid-90s subdivisions in the city's middle ring. Mix of original decks reaching end-of-life and clean new builds on lots that never had one. Per-square-foot pricing is competitive here because contractors face less rebuild complexity than south of the QEW.
§ III. Working with builders here
Burlington has an unusually high share of rebuild work, which means experienced local contractors charge a premium because demolition-plus-rebuild jobs are harder to estimate than fresh-builds. Ask any Burlington contractor pricing a Roseland or Aldershot rebuild for a separate demolition line and a separate disposal line — if the quote rolls them together, you have no protection against scope creep when the existing deck turns out to have hidden rot at the ledger. For north-end Alton or Orchard new-builds, ask about which composite manufacturer’s installer-pro program the crew is certified for; warranty coverage depends on it. Confirm whether the contractor handles the permit application themselves.
Burlington's high rebuild share means experienced local contractors charge a meaningful premium because demolition-plus-rebuild jobs are harder to estimate than fresh builds. For any Roseland, Aldershot, or older South Burlington rebuild, the quote should carry a separate demolition line, a separate disposal line, and an explicit ledger-repair scope — if these are rolled into a single per-square-foot rate, you have no protection against scope creep when the existing deck turns out to have hidden rot or unexpected fastener damage. For Alton and Orchard new builds, ask about manufacturer-pro installer status for composite warranty coverage; the per-square-foot rate is the cleanest comparison signal across three quotes on identical specs. WSIB clearance and HCRA registration are baseline floors.
Burlington follows the Halton pattern — summer booking closes by late February. Late September and early October sees a small discount window for fresh-build composite jobs, but rebuilds are typically booked year-round and don’t get the seasonal break.
§ IV. Reference builds
The PT 12×12 scenario fits the typical south-end rebuild after a full demo. The mid-range composite walkout maps to most Alton and Orchard subdivision homes. The premium PVC build is most common on lake-facing lots in Roseland and along Lakeshore Road. Costs are derived from the same pricing model the calculator uses; ranges are installed totals before HST.
A simple 144 sq ft pressure-treated deck, sitting under 24″ off grade, with wood-picket railing and 3 stairs to the yard.
Installed total
$6,100 – $9,600
A 224 sq ft capped-composite deck off a kitchen walkout, 2–4 ft above grade with aluminum railing, low-voltage lighting, and 4 stairs.
Installed total
$18,100 – $31,200
A 320 sq ft PVC deck 4–8 ft off grade with cable railing, a built-in bench, low-voltage lighting, and a 12×12 pergola.
Installed total
$36,100 – $67,200
§ IV.b Anchored to Burlington
Intersection-level, not addresses — these are the scopes that match the typical Burlington quote pattern, mapped onto the reference builds above.
16×12 cedar rebuild after demolition of an aged PT deck, cedar railing with stainless cable infill, ledger replacement on aged stucco, three-step run to grade.
Lands between the budget pressure-treated and mid-range composite references once demolition, disposal, and ledger work are included. Cedar with cable infill is the lake-view-justified upgrade common on this style of Roseland lot.
20×14 capped composite walkout on a 2010s subdivision kitchen, aluminum railing, no existing deck, single-level with two-step run.
Sits within the mid-range composite walkout reference build. Standard Alton scope; the absence of demolition and the clean walkout grade keep this at the cleaner end of the price band.
§ II½. By the foot
The PT 12×12 scenario fits the typical south-end rebuild after a full demo. The mid-range composite walkout maps to most Alton and Orchard subdivision homes. The premium PVC build is most common on lake-facing lots in Roseland and along Lakeshore Road.
| Size | Sq ft | Installed range | Per sq ft |
|---|---|---|---|
| 10 × 10 | 100 | $8,550 – $14,350 | $86/sq ft – $143/sq ft |
| 12 × 12 | 144 | $11,600 – $19,300 | $80/sq ft – $134/sq ft |
| 12 × 16 | 192 | $14,700 – $24,450 | $77/sq ft – $127/sq ft |
| 16 × 20 | 320 | $23,150 – $38,250 | $72/sq ft – $120/sq ft |
Priced in composite (trex-tier) — the most common default in Burlington— at 2–4′ off grade with a 3-step run to grade, aluminum railing on three sides, and a typical permit included. Numbers come out of the same calculator the page uses; toggle materials, height, and features above to fit your own project.
§ I. How it works
The site exists to give homeowners a real number before they ever speak to a contractor. That's the whole pitch.
Estimate
Size, material, height, and features. The price range updates the moment you change a slider — there's no email gate, no "see your results" button, no waiting room. The calculator is the page.
Compare
Pressure-treated, cedar, composite, and PVC each shift the bottom line in predictable ways. Open the line-by-line breakdown and you'll see exactly which line items move when you switch — framing stays roughly flat, decking and railing do most of the work.
Quote
Use the printed estimate as a sanity check on the quotes you receive. If a contractor's number for, say, framing is well outside our range, that's a question worth asking — not a deal-breaker, just a conversation starter.
§ II. The cost guide
The honest answer, with the math behind it.
Most homeowners in the Greater Toronto Area can expect to pay between $30 and $110 per square foot installed for a new deck in 2026, with the final price driven primarily by material choice, height above grade, and railing type. A typical 16′ × 12′ deck (192 sq ft) lands somewhere between $8,000 on the low end (ground-level, pressure-treated, no built-ins) and $30,000+ on the high end (raised PVC deck with glass railing, stairs, and built-in features). The calculator above gives you a tighter range based on your specific inputs.
Roughly half of any deck quote is labour. The rest splits across lumber or composite boards, fasteners and structural hardware, footings, permit fees, and disposal of the old deck if you’re replacing one. Contractors who break out their quote line-by-line are easier to compare; quotes with a single “turnkey” number make it harder to spot where corners are being cut.
A ground-level deck and a 6-foot raised deck can use identical decking boards but have wildly different framing costs. Raised decks need larger footings (frost depth in the GTA is 4 feet, so all footings go below that), heavier joists, beam reinforcement, and code-compliant guardrails on every exposed edge. Expect a raised 4–8 ft deck to cost 18–30% more than the same square footage at ground level.
Wood pickets are cheapest at roughly $35–$60 per linear foot installed. Aluminum jumps to $70–$110, and tempered glass panels run $130–$220 per linear foot. On a 16′ × 12′ deck with railing on three sides, that’s a $1,400 spread between wood and aluminum, and over $7,000 between wood and glass. If view matters, glass is worth it; if it doesn’t, you have better places to put the money.
Almost every GTA municipality requires a building permit for any deck more than 24 inches above grade. Toronto, Mississauga, Brampton, Hamilton, Oakville, Vaughan, and Markham all enforce this; fees typically run $250–$750 for a residential deck. Skipping the permit seems like a way to save money until you go to sell the house and the buyer’s home inspector catches it — or worse, a neighbour complains and the city issues a stop-work order. Get the permit. It also means a building inspector will catch framing mistakes before they’re hidden under decking.
GTA deck builders are usually booked 6–12 weeks out from April through August. If you want a deck for summer, start collecting quotes in February or March. Winter quotes are also more competitive — some contractors will lock in a March/April build at a lower rate to keep their crews busy after the holidays. The calculator above is a good starting point, but the real next step is getting a few licensed local builders to look at your lot.
§ V. Related reading
The deeper background behind the numbers above — written for the materials and decisions most common on Burlington projects.
§ III. Local questions
Practical answers, no upselling.
General questions
Practical answers, no upselling.
§ V. Coverage
Pricing patterns and permit rules differ a little across the Greater Toronto Area. Pick the city that matches your project.