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Cost to Move a Toilet (and When It Is Worth It)

Moving a toilet a short way can cost a few hundred dollars. Across the room, or on a slab, it runs into thousands. What drives the price and when it is worth it.

Bathroom mid-remodel with the subfloor open and a toilet drain pipe exposed, a tape measure and layout marks on the floor

Moving a drain is where bathroom budgets go. The tile and the vanity get all the attention, but a toilet moved three feet can cost more than both.

So decide it first, before anything is ordered.

Typical US costs

These are typical US ranges quoted by Block Renovation. Your own quote will depend on your house, your area and what's behind the walls.

  • Toilet, a short way toward the main stack: about $500 to $1,500
  • Toilet, across the room: about $2,500 to $5,000
  • Sink, along the same wall: about $500 to $1,200
  • Sink, to another wall: about $1,000 to $3,000
  • Shower drain: about $1,000 to $3,000
  • Any of these on a concrete slab: add about $1,000 to $3,000 or more
Exposed toilet drain pipe in an opened bathroom floor during a remodel
The drain, not the toilet, is what costs money to move.

Why the toilet costs most

A toilet needs a 3-inch drain at a steady slope, plus venting. A sink runs on flexible supply lines and a small drain. Moving a toilet often means opening the floor and rerouting a large pipe across the joists.

Why a slab adds so much

If your bathroom sits on a concrete slab, moving any drain means cutting the concrete, trenching, and pouring it back. Over joists (with a basement or crawlspace below), the plumber can often work from underneath.

Concrete slab bathroom floor cut open with a trench for a new drain line
On a slab, moving a drain means cutting the concrete.

Can you move a toilet a few inches?

Sometimes, without moving the drain at all. An offset toilet flange can shift a toilet a short distance, often around an inch or two. Ask your plumber whether it suits your floor and drain.

When moving is worth it

  • The current layout fails the clearances: less than 21 inches clear in front of the toilet, or less than 15 inches from its centerline to a wall or vanity.
  • The move gives you a real shower where there was only a tub.
Remodeled bathroom where the toilet was moved to make room for a walk-in shower
Worth it: a move that buys a real shower.

When it isn't

  • Only to center the vanity on a wall. A wider vanity, or a mirror centered on the basin instead of the wall, gives you the same look for nothing.
  • Only to swap the toilet and sink because it looks better on a plan.

Get the quote before the tile

Ask for the plumbing cost before you choose tile or a vanity. If moving the toilet costs $4,000, that might be the budget for a better vanity or floor-to-ceiling tile instead.

Bathroom floor plan sketch with the toilet, sink and shower drains marked
Mark the drains on your sketch first.

FAQ

How much does it cost to move a toilet? In the US, typically $500 to $1,500 a short way, $2,500 to $5,000 across the room, and more on a slab.

Can you move a toilet 6 inches? Often, but it still means moving the drain unless an offset flange covers the distance. Get a plumber's quote.

Is it cheaper to move a sink or a toilet? A sink, by a long way. It uses a smaller drain and flexible supply lines.

Decide the layout first

The Bathroom Decision Map, No. 05 in the Decorwick Measured Home Series, puts the layout and plumbing decision first, with the full cost table, the clearance checks and the vanity sizer that often makes a move unnecessary. See The Bathroom Decision Map

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