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What is behind the walls of a pre-1940 Tacoma bathroom, and how to plan for it.

Tacoma guide · by Aleksey Kushchuk

Remodeling a Bathroom in an Old Tacoma House

What is behind the walls of a pre-1940 Tacoma bathroom, and how to plan for it. Updated 2026-11-03

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Short answer

Remodeling a bathroom in an old Tacoma house means planning for what you cannot see yet. Expect older supply pipe, a cast iron drain, floors that are not level and at least one previous remodel buried under the current one. None of that is a reason not to start; it is a reason to budget a cushion and hire someone who has opened these walls before.

Layers of past remodels

Many North End and Stadium bathrooms have been updated two or three times. It is common to find 1950s tile set in a thick mortar bed, then a later layer of drywall or paneling, then whatever went on in the 1990s. Each layer adds weight and thickness, and the mortar bed is heavy work to remove.

Floors that slope

After a century, joists sag and houses settle. A floor that drops half an inch across the room will crack large tiles unless it is corrected. We check with a long level during the walkthrough and plan for leveling or sistering joists if needed.

Old wiring near water

Some older homes still have sections of knob-and-tube wiring. It was not designed for bathroom loads or for being buried in insulation. If we find it in a bathroom wall, we recommend a licensed electrician replace that run while the wall is open.

Keeping the character

You do not have to choose between old charm and a modern shower. A few choices that suit older houses:

  • Hex or basketweave mosaic on the floor
  • White or cream subway tile with a simple cap
  • Furniture-style or pedestal vanity
  • Exposed or classic-style valve trim
  • Painted wainscot outside the wet zone

Budget a cushion

On older homes, a contingency for hidden conditions is sensible. We will tell you what we think is likely based on what we see before demo, and we show you anything we find before acting on it.

Want eyes on your bathroom?

White Saber does free walkthroughs across Tacoma. Call or text 253-269-8610.

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Questions

Quick questions

Should I replace all the pipes while the bathroom is open?

At least the pipes inside the walls you are opening. Whole-house repiping is a separate decision we can talk through.

Can I keep my original clawfoot tub?

Often yes. It can be refinished and reinstalled, and the new floor and walls built around it.

Is a mortar bed bad?

Not at all; old mud-set tile was durable. It is just heavy and slow to remove, which affects time and cost.