Is it possible to convert my tub to a shower if the tub is against an outside wall?

Yes, you can absolutely convert a tub to a shower when it's against an outside wall. This is actually a very common renovation scenario that licensed contractors handle regularly in Ottawa homes.

The key considerations for exterior wall conversions involve proper waterproofing and insulation management. Your contractor will need to ensure the exterior wall cavity maintains proper insulation while installing new plumbing fixtures. The existing tub plumbing can typically be reconfigured for a shower, though you may need additional rough-in work for new shower valves or multiple shower heads.

Waterproofing becomes especially critical with exterior walls since any moisture penetration could lead to serious structural issues or mold problems. Professional contractors use specialized waterproof membranes behind tile work and ensure proper vapor barriers are maintained in the wall assembly. The shower pan installation also requires careful attention to drainage slopes and waterproof sealing.

In Ottawa's climate, exterior wall renovations must meet Ontario Building Code requirements for thermal bridging and moisture control. Your contractor will likely need to coordinate with building permits if structural changes are involved, particularly if enlarging the shower footprint or modifying window locations.

Design-wise, exterior wall showers offer great opportunities for natural light through existing windows or new glass block installations. Many Ottawa homeowners choose to install larger format tiles on exterior walls to minimize grout lines, and consider heated flooring systems since exterior walls can feel cooler.

For your specific project, expect costs between $3,000 - $8,000 for a standard tub-to-shower conversion, with additional costs if extensive plumbing modifications or window work is needed. A licensed contractor can assess your exterior wall construction and provide recommendations for the most effective approach. For a free estimate on your bathroom renovation, request a quote from Ottawa Bathrooms to discuss your specific exterior wall considerations.

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Ottawa Bathrooms connects you with vetted, licensed renovation contractors from the Ottawa Construction Network:

• Justyn Rook Contracting ✓
• Davinci Tiling ✓
• Capital Labour Solution ✓