Average Cost of Re Plumbing a House | CountBricks Guide

Price source: Costs shown are derived from our proprietary U.S. construction cost database (updated continuously from contractor/bid/pricing inputs and normalization rules).

Eva Steinmetzer-Shaw

Head of Marketing

Understanding the Average Cost of Re Plumbing a House

For construction professionals, determining the cost to re plumb a house involves multiple variables. Factors such as square footage, fixture count, pipe material, labor rates, and regional regulations all influence the final estimate. Typically, costs range from $6,000 – $20,000 depending on the home's size and complexity. CountBricks provides real-time data and AI-driven analytics to streamline this process, offering accurate estimates quickly.

National Cost Ranges at a Glance

Small homes (1–2 baths, under 1,500 sq ft): $3,500 – $7,000
Mid-size homes (2–3 baths, 1,500 – 2,500 sq ft): $6,000 – $10,000
Large homes (3+ baths, over 2,500 sq ft): $10,000 – $20,000+

These figures include the replacement of supply lines with PEX or Type L copper, covering demolition, installation, and finishing. Market fluctuations in material costs can affect these estimates by 10-15%.

Key Factors That Drive Re Plumbing Costs

1. Pipe Material Selection

PEX: Flexible, fewer fittings, 25-30% cheaper than copper, faster labor
Type M Copper: Mid-grade, moderate price, durable but more joints
Type L Copper: Premium, thicker wall, 15-20% cost increase over Type M

Choosing PEX over Type L copper can save approximately $3,800 on a 2,000 sq ft home with three baths.

2. House Layout and Access

Single-story slab homes require more invasive demolition, increasing labor hours
Two-story framed houses allow vertical chases, reducing demo but adding safety fees
Crawlspace access lowers ceiling demo but adds PPE and confined-space premiums

3. Fixture Count and Complexity

Additional sinks, showers, or hose bibs increase material length and rough-in time. CountBricks' voice-capture takeoffs update pipe footage and fitting counts in real time.

4. Regional Labor Rates

Labor costs vary significantly by region. CountBricks accesses local Department of Labor tables to ensure estimates align with actual crew costs.

Breaking Down the Typical Estimate

Demolition & Surface Protection – 10%
Rough-in Labor – 35%
Pipe & Fittings – 30%
Insulation & Fire-stopping – 5%
Drywall, Paint & Finishes – 15%
Permit & Inspection Fees – 5%

Itemizing these components in a CountBricks estimate helps clients understand cost allocation, reducing disputes.

How CountBricks Streamlines Your Re Plumbing Project

Real-Time Voice Capture

Use your phone to call out specifications, and our AI transcribes and prices the takeoff instantly.

Live Material Pricing

CountBricks integrates with suppliers to adjust estimates based on real-time material cost changes.

Instant Quote Documents

Generate branded PDFs with scope, exclusions, and payment schedules quickly.

AI Blueprint Takeoffs

Upload plans, and our engine measures and labels every run, improving accuracy and saving time.

Case Snapshot: 1960s Ranch Retrofit

CountBricks collaborated with GreenTree Plumbing on a 1,400 sq ft ranch in Austin. The project reduced estimate creation time from 3 hours to 18 minutes, with a final contract value of $9,750.