Should I repair my deck or replace it?
E&R Construction · Published October 15, 2026
The short answer
If the posts, beams and joists are solid, worn boards and railings can usually be repaired or replaced on their own. If the frame is rotting, loose or sinking, replacing the deck is usually the better use of money.
A deck has two parts: the frame underneath (footings, posts, beams and joists) and what you see on top (boards, stairs and railings). Which part is failing decides whether a repair makes sense.
Signs a repair is enough
- A few boards are cracked, split or cupped, but the rest are solid.
- Railings or stairs are worn but firmly attached.
- The deck feels solid when you walk on it and does not sway.
Signs it is time to replace
- Soft or rotting wood in the frame. Push a screwdriver into posts, beams and joists, especially where they meet. If it sinks in easily, the wood is rotting.
- Movement. A deck that sways, bounces or pulls away from the house needs attention right away.
- Sinking or heaving posts. Ottawa's freeze and thaw can lift footings that were not set below the frost line.
- Rusted fasteners and hangers, particularly where the deck attaches to the house.
- Repairs adding up to a large share of the cost of a new deck.
Safety first
Railings and stairs are where most deck injuries happen. If a railing is loose, keep people off that part of the deck until it is fixed.
Permits
Some decks need a building permit from the City of Ottawa, depending mainly on their height. Check with the City before building or rebuilding.
Not sure which yours needs? See our decks page, or request a quote with a few photos.