Whole-Home Repiping
Knoxville, Tennessee
Whole-home repiping replaces all the supply lines in a house. It's typically needed in older Knoxville homes with galvanized steel pipes (narrowed by mineral buildup) or polybutylene pipes (known failure risk). PEX is the most common replacement material — it's flexible, corrosion-resistant, and less expensive than copper. The cost varies significantly based on home size, number of bathrooms, and accessibility.
A few quick questions for a better estimate
Answer what you can — "Not sure" is always fine. These help narrow the range but won't change it dramatically.
1.What is the current pipe material in your home?
2.How many bathrooms does your home have?
3.Is the home on a crawlspace, basement, or slab?
Typical Installed Project Cost
Typical Installed Project Cost in the Knoxville Area
These general market estimates are intended to reflect pricing from an established professional plumbing contractor and typically include standard equipment/materials and professional installation for a reasonably straightforward project.
Limited / Partial Repipe
Partial repipe — one section or branch line replacement
$2,500 – $5,000
Small Home (1 Bathroom)
Small home, single bathroom, crawlspace or basement access
$5,500 – $8,000
Average Whole-Home (2 Bathrooms)
Typical 2-bathroom home, PEX, standard access
$8,000 – $13,000
Large / Complex Home (3+ Bathrooms)
Large home, multiple bathrooms, multi-story, complex layout
$13,000 – $20,000
Premium Material (Copper) / Complex Access
Copper repiping, slab construction, or difficult access
$18,000 – $30,000
Actual project cost can vary based on equipment selection, existing conditions, accessibility, code requirements, permits, additional plumbing modifications, electrical or gas work, excavation, restoration, and other project-specific factors. These are general Knoxville-area professional-contractor market estimates for educational purposes, not handyman, side-job, or unlicensed pricing, and are not a quote or pricing from The Classic Plumber.
Market estimate — not a Classic Plumber quote.
Concerned about the cost?
Financing options may be available for qualifying projects. The Project Cost Planner can help you think through scope before you apply.
Learn about financingA typical professional whole-home repiping may include:
- ✓Removing the old supply lines
- ✓Installing new PEX or copper supply lines throughout the home
- ✓Installing new shutoff valves at each fixture
- ✓Connecting to the main supply
- ✓Installing a new main shutoff valve
- ✓Pressure testing the entire system
- ✓Wall access and repair (plumbing only — drywall/patchwork may be separate)
- ✓Cleanup of the work area
Additional repairs, code upgrades, or modifications can increase the total cost beyond what's listed above.
Several factors can move the cost up or down from the typical range:
Common Add-On Costs
These items may or may not be included in the typical range above, depending on the contractor and project scope:
- +Drywall repair and restoration
- +Wall access and patching
- +Permit fees
- +Main distribution manifold installation
- +Fixture upgrades during repipe
- +Copper vs PEX material selection
- +Slab access (cutting and patching)
Pickup / Delivery
Not applicable (in-home project)
Haul-Away / Disposal
Old pipe disposal typically included
Repair or Replace?
If your home has galvanized or polybutylene pipes, repiping is not a question of if but when — these materials will fail. If you're experiencing multiple leaks, low pressure, or discolored water, the time is now. If the pipes are copper and in good condition, targeted repairs may be sufficient.
Factors to consider
- —Current pipe material (galvanized, polybutylene, copper)
- —Number of bathrooms and fixtures
- —Home size and accessibility (single story vs. multi-story, crawlspace vs. slab)
- —Whether the home has had multiple leaks
- —Whether water pressure is low throughout the house
- —Whether discolored water is coming from the pipes
Before Calling a Plumber…
A few safe, simple checks may save you a service call:
- ✓If your home has galvanized pipes and pressure has been declining across multiple fixtures, a repipe may be needed
- ✓Check pipe material at an exposed pipe (crawlspace, basement, or under a sink) — silver-gray metal is galvanized
Many Knoxville homes built from the 1960s through the 1980s have galvanized steel water lines that have narrowed from decades of mineral buildup. These lines restrict flow and are prone to leaking. PEX is the most common replacement material in the area — it's flexible, corrosion-resistant, and less expensive to install than copper. Knoxville's soil conditions vary; rocky areas increase excavation costs.
How much does a whole-home repipe cost in Knoxville?
Whole-home repiping in the Knoxville area generally ranges from about $5,500 to $18,000, with many around $9,500. The cost depends on home size, number of bathrooms, pipe material selected, and accessibility. Larger homes, copper repiping, and slab construction can push costs toward the higher end.
Should I choose PEX or copper for my repipe?
PEX is the most common choice in Knoxville — it's flexible, corrosion-resistant, and less expensive than copper. Copper is still used when preferred for aesthetic reasons or when a more rigid pipe is needed. Both are excellent materials when installed correctly.
How long does a whole-home repipe take?
A typical whole-home repipe takes 2–5 days depending on the size of the home and the complexity of the installation.
Ask AI Plumber About Your Situation
Our AI Plumber already knows the Knoxville market range for this service. Tell it about your specific situation and it can help you understand what might move your installation toward the lower or higher end.
Ask AI Plumber About My SituationThese figures are general Knoxville-area market estimates based on typical project scope, equipment and material type, standard labor, installation complexity, and Knoxville-area market conditions. They are not The Classic Plumber's official pricing and should not be considered a quote for your specific project.
The Classic Plumber works to provide fair, competitive pricing based on the actual work required, equipment/materials selected, access, existing conditions, and project scope. Your actual Classic Plumber price may be lower or higher than the market ranges shown here depending on the specific job.
These estimates are not derived from proprietary pricing data or a statistical survey of local homeowners. When a service varies significantly, we use tiered ranges or broader estimates rather than false precision.
Reviewed by Paul Hall, Owner & Licensed Plumber
The Classic Plumber · Knoxville, TN · License #4268. Pricing information last reviewed: September 2026. Market estimates are reviewed periodically and may not reflect real-time pricing.
Want an exact price for your home?
The cost guide gives you market ranges. For a real quote on your specific situation, request service from The Classic Plumber.