Whole House Repipe Cost in Washington DC 2026
Whole House Repipe in Washington DC costs between $6,812 and $25,545 in 2026, with the average around $13,624. Washington DC pricing runs 70% above the US national average. Replacement of all supply water lines throughout the home with new PEX or copper piping, new shutoff valves, and fixture connections. Includes wall access, patching, and pressure testing.
What whole house repipe includes in Washington DC
Replacement of all supply water lines throughout the home with new PEX or copper piping, new shutoff valves, and fixture connections. Includes wall access, patching, and pressure testing.
Typical time on site: 2 to 4 days. Local labor rate: $49/hour for an experienced plumbing pro.
What changes the price of whole house repipe in Washington DC
- PEX versus copper
- Number of bathrooms
- Home size and stories
- Wall access and drywall repair
- Slab or crawlspace routing
A whole house repipe quote priced off statewide averages will be off by 10 to 20 percent for Washington DC, because the metro has its own labor pool, material delivery distances, and permit timelines.
Washington DC climate and demand for plumbing
Humid subtropical; freeze-thaw cycles; historic preservation drives material choices
Washington DC permits for whole house repipe
Building department: DC Department of Buildings (DOB). https://dob.dc.gov
Typical permit cost: $400 - $4,500 residential. Inspection time: 10-25 business days. Washington DC rule: DC DOB and DCRA have strict historic preservation review (HPRB). License + basic business license required. DC has no state taxes but has its own sales tax (6%).
District of Columbia sales tax and licensing for Plumbing
District of Columbia sales tax: 6% (no local addition). Real property labor not taxable; TPP repair labor is taxable.
State license: DC Department of Consumer and Regulatory Affairs, required: $390 (basic business license).
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