Washington, DC, DC
Lead water service line replacement in Washington, DC
Updated · Editorial team; not yet technically reviewed
Short answer
DC Water's Lead Free DC program replaces lead service lines at no cost to owners. Under its Block-by-Block program, replacement of the private-side pipe (the part on your property) is covered at no cost to the homeowner, so most DC owners should not hire a plumber for a lead line on their own before checking whether their block is scheduled.
What's different in Washington, DC
DC Water pays to replace the public portion of a lead line with ratepayer funds, while the private portion is replaced free using federal and District funding. [1]
Under the Block-by-Block program, 100% of the cost of replacing the private-side lead line is covered, at no cost to the homeowner. [1]
Block-by-Block replaces all the lead pipes on a block at the same time, with blocks chosen by a prioritization model. [1]
Before you call a plumber
- Look up your address in DC Water's service line inventory to see the recorded material on each side.
- If the private side is lead or unknown, ask DC Water whether your block is scheduled before paying for replacement yourself.
- Until the line is replaced, run cold water a few minutes after it sits, and use a certified filter for drinking and cooking; the lead service line guide covers how to tell what you have.
When you'd still hire a plumber
A plumber is still the right call for a leaking or broken line that can't wait for a scheduled block, for interior piping that DC Water's program doesn't cover, and for restoring finishes after the work. Get confirmation from DC Water in writing before any private replacement so you don't lose eligibility.
Further reading: How to tell what your pipes are made of.
What Washington, DC homeowners usually check next
- SymptomSigns of a hidden leak
- SymptomWater bill suddenly high
- SymptomNo water in the house
Common questions
How does DC Water choose which blocks go next?
Blocks are picked with a prioritization model; all lead lines on a chosen block are replaced together.
What does Block-by-Block cost a DC homeowner?
Nothing for the private-side line; the program covers 100% of that replacement.
How do I find out what my DC service line is made of?
Search your address in DC Water's lead service line inventory map.
Should I replace my lead line privately before my block comes up?
Usually not. Check with DC Water first; private replacement may mean paying for work the program would have covered.
Does the program replace lead pipes inside my house?
It targets the service line from the main into the home; interior plumbing is a separate job.
Why replace whole blocks instead of single houses?
Replacing public and private sides together avoids partial replacements, which can disturb lead without removing it.
What can I do about lead in my DC water today?
Flush cold water after it sits, use a filter certified for lead, and never use hot tap water for cooking.
My DC service line is leaking. Can I wait for the program?
No. A leak needs repair now; call DC Water about the public side and a plumber for the private side.
Is a DC permit needed to replace a water service line?
Yes, service line work requires DC permitting and DC Water coordination; a licensed plumber handles it.
Who do I call with lead questions in DC?
DC Water's Lead Free DC team, through its lead program page.
More plumbing help in Washington, DC
- Sewer Backup in Washington, DCSewer backups in DC: owners maintain the lateral and clear its clogs, DC Water usually doesn't pay for backup damage, and how to ask for an investigation.
- Water Line Repair: the full guideSigns the water service line from the meter to your house is leaking, who owns it, repair vs. replacement, lead lines, and trenchless options.
- Plumbing in Washington, DCLocal water, housing and climate conditions, and the calls Washington, DC homes need most.
How other cities handle it
- Lead service line replacement in ChicagoHow lead water service line replacement works in Chicago: free and fee-waived city programs, who qualifies, what state law requires, and what the job involves.
- Lead service line replacement in DetroitHow Detroit and Michigan law handle lead water service line replacement: who pays, full-line requirements, timelines, and what homeowners should do meanwhile.
- Lead service line replacement in DenverHow Denver Water replaces customer-owned lead service lines with copper at no direct cost, which homes are most likely affected, and what to do while you wait.
- Lead service line replacement in MilwaukeeHow Milwaukee's lead service line rules work: when full replacement is required, what homeowners pay, how to look up your address, and what to do while you wait.
- Lead service line replacement in CincinnatiHow Greater Cincinnati Water Works replaces private lead service lines: who pays, who gets priority, how long the program runs, and how to get started.
- Lead service line replacement in PittsburghPittsburgh Water lead line programs: neighborhood replacements, free income-qualified replacement, plumber reimbursement, and how to apply.
- Lead service line replacement in BostonHow Boston Water and Sewer Commission's free lead service replacement works: free inspection, free replacement, how to check your address, and what to expect.
- Lead service line replacement in ClevelandWhen Cleveland Water replaces your side of a lead line for free, how galvanized pipe is handled, yearly targets, and what to do next.
- Lead service line replacement in St. LouisSt. Louis lead service lines: the city's inventory, why rates can't pay for the private side, grant and loan help, and what owners can do now.
- Lead service line replacement in PhiladelphiaPhiladelphia lead service lines: owner responsibility, free replacement during main work, the free ZIP-code pilot, and 0% HELP loans.
- Water and sewer service line repair in New York CityNYC owners own their water and sewer service lines: DEP 3-day and 30-day notices, the licensed master plumber rule, permits and the $1,000 shutoff fee.
- Water and sewer line repair in New OrleansWho pays for water and sewer service connections in New Orleans: Sewerage and Water Board rules, owner responsibility on post-1954 lots, and Board-caused damage.
- Water service line repair in Kansas CityKC Water service line rules: the City maintains mains to the curb box, owners repair from the curb stop to the house under Ordinance 78-22, and warranty options.
- Lead service line replacement in ProvidenceLead service lines in Providence: Providence Water's free private-side replacement for eligible customers, 10-year 0% loans, and the free public-side match.
- Lead service line replacement in Des MoinesLead service lines in Des Moines: Des Moines Water Works' free replacement funded by a $52.6M state loan, the Drake first phase, and how to check your line.
- Water line leaks in Phoenix: the meter decides who paysWater line leaks in Phoenix: the city repairs the street side of the meter, the owner the rest, and city code makes customers pay for water lost past the meter.
- Water and sewer service lines in CharlotteCharlotte water and sewer service lines: Charlotte Water handles mains to the curb, owners handle the laterals from curb to home, and what that means for leaks.
- Water line leaks in AustinWater line leaks in Austin: Austin Water owns the line to the meter box near the sidewalk, owners own everything past it.
- Water service line leaks in BuffaloBuffalo water service lines: the line from the city main to the house is private, the owner keeps up the curb box and valve, and what Buffalo Water will do for free.
- Lead service lines in Newark after the replacement programNewark replaced its 18,720-plus lead service lines at no cost to residents, funded by city and Essex County bonds. What's left to check in an older Newark home.
- Lead service line replacement in Jersey CityJersey City's Lead Free JC: about 16,000 lead lines to replace by June 2031 at no direct cost, JCMUA contractors or your own with a credit, and the inventory lookup.
- Water service line repair in SeattleSeattle water lines: owners install and maintain the private line from the city union to the house, and how SPU's leak adjustments treat city-side and.
- Water service lines in Fort WorthFort Worth service lines: the city owns the line to and including the meter, owners own the rest, the lead inventory shows no lead lines.
- Houston water service lines: the inventory and 'unknown material' lettersHouston's service line inventory: no lead lines found so far, most lines still listed as unknown, the notices sent to customers, and how to check yours.
- Dallas water service lines and the service line inventoryDallas Water Utilities' service line inventory: how materials were identified, letters to 225,000 unknown lines, and the GIS lookup.
- Water service lines in Los Angeles: no lead foundLADWP's service line inventory found no lead or galvanized-requiring-replacement lines, including customer-owned ones. What that means for LA water line repairs.
- Water service lines in San Antonio: SAWS inventory and free inspectionsSAWS's service line inventory: over half of 600,000 lines unidentified, yearly letters to unknown, lead or galvanized lines, and free inspections for pre-1989 homes.
Sources (1)
- DC Water, Free lead service line replacements · checked 2026-10-03