A deck ages in two directions at once: the surface wears from sun and traffic, and the structure wears from water, which means freeze-thaw splitting boards, snow loads testing fasteners, and the ledger quietly rotting where it meets the house. Most owners see the surface problem first because it's the one at eye level. The one that matters is usually the one at foot level, under the boards, where nothing is visible until something moves.
Rhodex treats deck repair as a structure-first job: what holds the deck up gets checked before what people walk on gets replaced, and the line between repair and rebuild gets drawn honestly.
What the job actually involves
The inspection comes before the quote: framing members probed for rot (especialy joist ends, posts at grade and the ledger), fasteners checked for pull-out and corrosion, railings pushed on hard rather than looked at, stairs tested for movement and even rise. Only then does the board work start, because board replacement over a compromised frame is money spent twice.
The repairs themselves follow what the inspection found: sprung or split boards replaced with matched material and properly gapped for drainage; railing posts re-anchored into the frame with structural hardware rather than longer screws; stairs re-treaded and re-risered; soft spots in the frame opened up, and rot cut back to sound wood with the sistering or joist replacement the damage actually calls for. Ends get sealed, hardware gets the corrosion-resistant treatment Ontario weather demands, and the deck is walked and pushed on before it's handed back.
What changes the price
As general market estimates (not Rhodex prices, and from a US source), one cost guide puts typical deck repairs at roughly $500 to $3,000, averaging around $1,500, with a full range from about $150 to $10,000, board replacement around $10 to $35 per square foot, railings $25 to $100 per linear foot and stairs $15 to $50 per step. What moves an individual quote:
- Surface vs. structure. Boards and railing work sits at the low end; joists, posts and ledger work is real structural carpentry.
- Rot extent. Rot is like an iceberg: what's visible is rarely all of it, and probing determines the honest number.
- Material match. Composite and PVC boards cost more than pressure-treated lumber, and mixing them takes careful fitting.
- Height and access. A raised deck means railing, stairs and stairs' structure in scope; a grade-level platform doesn't.
- Age of the fasteners. Very old decks can have fastener corrosion that makes board work slower and hardware replacement broader.
Rhodex's own prices are never published online. Each job is quoted from the inspection, itemised with labour, materials and HST.
Quick answers
How much does deck repair cost?
As general market estimates, one US cost guide puts typical deck repairs at roughly $500 to $3,000, averaging around $1,500, with the full range running from about $150 for a board or two up to $10,000 for structural work. Board replacement is commonly priced around $10 to $35 per square foot, railings $25 to $100 per linear foot.
When does repair stop making sense and rebuild start?
When the structure is the problem rather than the boards. New boards on rotten joists, a sinking frame or failed posts spend real money on a deck that still isn't safe. A rule of thumb: if the framing work approaches half the cost of a rebuild, the rebuild conversation is worth having.
My deck wobbles when people lean on the railing. Is that a big deal?
Yes. Railings are the one deck component whose job is to stop a fall, so movement in them is treated as a safety item rather than a cosmetic one. Loose rail posts usually trace back to fasteners into deck boards instead of the frame, and the fix has to reach the structure rather than just tighten screws.
Why do deck boards rot where they meet the house?
That junction, the ledger, is where water, leaves and debris collect against the wall, and where rot does its worst work. It's also the connection holding the deck up, which is why ledger condition is checked before cosmetic repairs are quoted anywhere else on the deck.
Does deck work need a permit?
Like-for-like board and railing repairs generally don't, but structural changes (altering the frame, posts, footings or height) can trigger permit requirements that vary by municipality. If the repair turns out to be structural, that's flagged before the work proceeds rather than after.
How Rhodex handles deck repair
Tell us the deck and what's wrong with it: wobble, rot, boards, stairs. An office manager books an inspection that probes the structure before anything is quoted, and the quote distinguishes what's cosmetic from what's structural. You approve it before anyone is dispatched; the work carries a 365-day warranty on workmanship.
Where we repair decks
Deck crews work Etobicoke and Mississauga in the west; Vaughan's Woodbridge, Maple, Concord and Thornhill; and north through King City, Aurora, Newmarket, Richmond Hill, Markham and Stouffville.
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A wobbly railing only gets worse over a winter. (647) 205-7554, 8:30 am to 10:30 pm, every day.
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