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Bathroom plumbing rough-in planning

Bathroom plumbing rough-in cost in 2026

Bathroom plumbing rough-in covers supply, drain, and vent work before finishes are installed; it is not a complete bathroom remodel.

Quick answer

A bathroom plumbing rough-in has a current national planning range of $3,000 to $20,000. The midpoint is $6,500. These figures exclude demolition and disposal, which should be shown once as a separate line item when needed.

Bathroom plumbing rough-in planning example with neutral contemporary finishes
Example design direction only; actual scope and materials affect a local estimate.

National bathroom plumbing rough-in planning range

Approved national planning range before state adjustment
Planning pointPer-project amount
Lower planning range$3,000
Typical midpoint$6,500
Upper planning range$20,000
Demolition and disposal, when needed$300–$3,500

The state adjustment is calculated from the 2024 BEA all-items Regional Price Parities input. Use the state cost guide for a location-specific planning range, then request quotes with the same written scope.

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Bathroom planning detail relevant to bathroom plumbing rough-in scope
Selections and existing conditions can change a project’s final scope.

What drives the price?

  • New or changed fixture locations
  • Supply, drain, and vent routing
  • Access to existing plumbing
  • Bathroom layout and fixture count
  • Permit and inspection requirements after local review
  • State-level planning adjustment

Know the scope boundary

Installs bathroom supply, drain, and vent piping before surfaces are closed. It excludes finish fixtures, demolition/disposal, and general remodeling work. The right baseline is the narrowest project that accurately describes the work. Do not combine two base project categories for one bathroom.

Related bathroom cost guides

Sources and methodology

National figures are planning ranges drawn from the approved master rate card. State pages use the 2024 BEA all-items Regional Price Parities input. A local estimate may differ because of specific site conditions, scope, material selection, permits, and contractor availability.

Common questions

Questions to ask before you request a quote.

What is the national bathroom plumbing rough-in range?

The approved national planning range is $3,000 to $20,000 before the state adjustment and any separately priced demolition or disposal. A local estimate depends on the exact scope and site review.

Does the range include demolition and disposal?

No. The national baseline excludes demolition and disposal so the same work is not counted twice. A quote should state whether removal, hauling, and disposal are included.

Why can two estimates differ for the same project?

Scope definitions, finish selections, plumbing or electrical changes, waterproofing, access, condition findings, and local market conditions can produce different estimates.

How should I compare quotes?

Compare the written scope, materials, exclusions, timing, warranty terms, and handling of demolition or unforeseen conditions—not just the first number.

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