How much does it cost to tear down and replace an old deck in Moncton?

Tearing down and replacing an old deck in Moncton typically costs between $8,000 and $22,000 for a standard 200-to-300-square-foot deck, with demolition accounting for roughly $1,500 to $4,000 of that total. The final price depends heavily on the size of the existing deck, how it was built, the materials you choose for the replacement, and whether the existing footings can be reused.

Demolition costs in Moncton break down into labour, disposal, and site preparation. A straightforward teardown of a single-level pressure-treated deck runs about $5 to $12 per square foot. For a 250-square-foot deck, that works out to $1,250 to $3,000. If the deck has multiple levels, built-in benches, pergola attachments, or is bolted into masonry, expect to pay toward the higher end. Disposal fees at the Greater Moncton region landfill or transfer station add $200 to $600 depending on the volume of material. Some contractors include disposal in their demolition quote, while others charge it separately, so clarify this upfront. If the old deck contains any hazardous materials such as older CCA-treated lumber, disposal requirements become more stringent and may add to the cost.

The critical decision during demolition is whether to reuse existing footings. If the original footings were poured to the proper frost depth of approximately 1.5 metres, are structurally sound, and are positioned correctly for your new deck layout, reusing them can save $900 to $3,000 on a typical project. A qualified contractor can assess footing condition during teardown. If new footings are needed, each one costs $150 to $350 installed in the Moncton area, and a standard deck requires six to nine of them.

For the replacement deck itself, pressure-treated lumber remains the most popular choice in Moncton and runs $30 to $50 per square foot installed, including framing, decking, and basic railings. Composite decking from brands like Trex, TimberTech, or Fiberon increases the cost to $50 to $85 per square foot but eliminates the ongoing staining and sealing maintenance that New Brunswick's harsh winters demand. At $3 to $6 per square foot every two to three years for professional staining, the long-term math on composite often works out favourably over a 15-to-20-year period.

Since your replacement deck will almost certainly be attached to your house or exceed 600 millimetres above grade, you will need a building permit from Moncton's Building Inspection Division. The permit fee is $100 to $300, and you will need to submit a site plan, deck plan with dimensions, a cross-section showing footing depth and framing, and railing details. Allow 2 to 4 weeks for approval. The permit process requires a footing inspection before framing can proceed and a final inspection before use.

One often-overlooked cost is repairing the house exterior where the old ledger board was attached. Removing an old ledger can reveal rot, damaged sheathing, or compromised flashing that needs to be addressed before the new ledger goes on. Budget an additional $300 to $1,000 for ledger-area repairs if your existing deck is more than 15 years old.

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