How much does it cost to replace all grout in a tiled Ottawa shower stall completely?

A complete regrout of a standard tiled Ottawa shower stall — removing all existing grout and replacing it with fresh grout — typically costs $600 to $1,200 for a standard three-wall shower with a tiled floor. A larger walk-in shower with a bench, niche, and extensive tile work can run $1,000 to $1,800 or more. These are installed prices including labour, grout removal, new grout material, and cleanup at Ottawa's 2025-2026 rates.

The labour is the main cost driver. Removing old grout is meticulous, time-consuming work. A professional uses an oscillating multi-tool with a grout removal blade or a specialized grout saw to cut out the old grout without chipping or cracking the adjacent tiles. A standard shower regrout takes six to twelve hours of labour depending on tile size (smaller tiles like mosaics have dramatically more grout lines than large-format tile), grout joint depth, and how stubbornly the old grout is bonded. At Ottawa trades rates of $55 to $85 per hour, the labour alone accounts for most of the cost.

Grout type affects both the material cost and total price. Standard sanded cementitious grout is the most affordable option — the grout material itself costs $15 to $40 per bag, which is enough for most shower regrouts. Upgrading to epoxy grout adds $100 to $300 to the total project cost but delivers a waterproof, stain-proof joint that never needs sealing. For a shower — where moisture exposure is constant and grout failure can lead to water damage — epoxy is a worthwhile investment that many Ottawa tile professionals recommend.

One critical consideration before committing to a full regrout: have the professional inspect the waterproofing behind the tile. If the original shower was installed with a proper waterproofing membrane (Schluter Kerdi, RedGard, Hydroban, or similar), regrouting is a straightforward maintenance job that extends the life of the installation. But if grout has been missing or cracked for an extended period, water may have penetrated behind the tile and compromised the substrate or waterproofing. In that case, regrouting alone will not fix the underlying problem, and a more extensive repair or shower rebuild may be necessary.

After regrouting with cementitious grout, make sure the new grout is sealed once it has fully cured (typically 72 hours). And remember that the corners, edges, and where tile meets the shower pan or tub should be filled with colour-matched 100 percent silicone caulk, not grout — these are movement joints that need flexibility.

You can find experienced tile professionals for shower regrouting through the Ottawa Construction Network directory to compare quotes and credentials in your area.

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Looking for experienced contractors? The Ottawa Construction Network connects Ottawa homeowners with qualified professionals:

• Homeupgraders
• JC Carpentry
• Extra Mile Tile Inc.
• Custom By Arie
• Transitions Renovations