Cost to Install PEX Pipe in Bathroom

Comprehensive guide on the cost to install PEX pipe in a Bathroom. Includes material prices, labor estimates, and step-by-step installation process for 2026.

PlumberCalc Team
Updated 2/24/2026

Installing PEX pipe in a Bathroom is a common plumbing project that requires careful planning and budgeting. This guide breaks down the costs, materials, and steps involved to help you get the job done right. Whether you are DIY-ing or hiring a pro, understanding the specific challenges of working with PEX in a Bathroom environment is crucial.

Step-by-Step Guide

1. Assess the Bathroom Environment

Before purchasing PEX, evaluate the Bathroom for accessibility and moisture levels. Ensure the path is clear for routing pipes.

2. Measure and Cut PEX

Measure the required length carefully. PEX is known for being relatively easy to cut, but precision is key to avoid leaks in your Bathroom.

3. Dry Fit the Connections

Assemble the PEX pipes and fittings without glue or solder first. This ensures everything fits perfectly within the specific constraints of your Bathroom.

4. Secure and Test

Once permanently joined, secure the PEX pipes to the framing. Run water to test for leaks before closing up walls or covering the Bathroom installation.

Key Characteristics

Material Type

PEX

Installation Location

Bathroom

Avg. Material Cost

$2 - $10 per foot

Difficulty Level

Moderate

Estimated Cost Breakdown: PEX in Bathroom

Typical costs for a standard 50ft run installation.

ItemEstimated CostNotes
PEX Pipe (50ft)$150 - $400Varies by diameter
Fittings & Connectors$50 - $100Elbows, tees, couplings
Labor (Plumber)$400 - $8004-8 hours estimated
Permits$50 - $150Required for Bathroom work

Advantages

  • PEX is durable and well-suited for Bathroom conditions.
  • Increases property value when installed correctly in the Bathroom.
  • Widely available parts and fittings.

Disadvantages

  • Installation in Bathroom can be tight and require specialized tools.
  • Requires proper support to prevent sagging over time.

Code Compliance

Ensure your PEX installation meets local IPC/UPC codes. Bathroom installations often require specific venting and cleanout access.