How long does it take to replace a bathtub with a walk-in shower? The contractor said 5 days, but that seems fast?

A 5-day timeline for a tub-to-shower conversion is actually quite reasonable for an experienced contractor, assuming it's a straightforward replacement in the same footprint without major plumbing or structural changes.

The timeline depends heavily on the scope of work and whether you're keeping the shower in the exact same location. If your contractor is simply removing the existing tub, installing a new shower base or tile floor, and updating the plumbing fixtures and surround, five days is realistic for a professional crew. However, this assumes they have all materials on-site, no surprises behind the walls, and favorable working conditions.

Day 1 typically involves demolition — removing the old tub, tiles, and any damaged drywall. Day 2 covers rough plumbing adjustments (moving the shower valve, installing new drain lines if needed) and any necessary framing modifications. Days 3-4 focus on waterproofing, installing the shower base or tile work, and beginning wall finishes. Day 5 handles final plumbing connections, finishing touches, and cleanup.

Calgary-specific considerations can affect this timeline. In Greater Calgary, plumbing permits are required for any rough plumbing changes through the City of Calgary — not just simple fixture swaps. If your contractor needs to move plumbing lines significantly or install new drain connections, add 1-2 days for permit approval and mandatory inspections by accredited Safety Codes Officers. Winter conditions can also slow material deliveries, especially if specialty tile or fixtures are backordered.

What could extend the timeline includes discovering rotted subfloor or framing (common in older Calgary homes), needing electrical work for new lighting or ventilation, or if you're upgrading from a standard tub to a large walk-in shower that requires floor modifications. Homes built before 1980 often have surprises behind the walls — outdated plumbing, inadequate framing, or asbestos-containing materials that require professional abatement.

Professional guidance suggests asking your contractor to walk through their day-by-day plan and confirm what's included. Verify they've pulled necessary permits and scheduled required inspections. A reputable contractor will have contingency time built in and communicate clearly if delays occur. If this seems rushed for your specific situation, don't hesitate to ask questions — better to understand the plan upfront than face surprises mid-project.

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