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Washington, DC, DC · plumbing service

Drain Cleaning in Washington, DC, DC

Old cast iron stacks in rowhouses and apartments narrow with buildup. Call to be connected with an independent, licensed plumber who handles drain cleaning in Washington, DC; they diagnose the problem and quote the work before starting.

By calling, you agree to be connected with an independent plumbing contractor serving your area. Calls may be recorded for quality and training. The call and referral are free, and you are never obligated to hire.
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  • Free call and referral
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Common signs

  • Slow sink
  • tub or shower
  • standing water
  • recurring clogs

Drain Cleaning services in Washington, DC

Problems drain cleaning fixes

  • A single slow sink, tub or shower drain
  • Several fixtures backing up at once (a main line clog)
  • Gurgling drains or water rising in a floor drain
  • Clogs that come back within weeks of clearing

Why drain cleaning comes up in Washington, DC

Old cast iron stacks in rowhouses and apartments narrow with buildup.

In older Washington, DC homes (66% were built before 1980), cast iron drains narrow with scale over decades, so a clog that keeps coming back may need jetting or descaling rather than another cable run.

Typical home built
1960
Homes before 1980
66%
Water hardness
6 gpg
moderately hard
Winter freezes
Regular hard freezes

How the work is done

  1. 1Find which line is blockedOne fixture points to a branch drain; several at once point to the main line or sewer lateral.
  2. 2Clear it with the right toolA hand auger or cable machine for most clogs; hydro jetting for grease and heavy buildup.
  3. 3Camera the line if it recursA camera shows roots, sags, breaks or scale that cleaning alone won't fix.
  4. 4Test the drainsRun water at the fixtures that were backing up before the plumber leaves.

What affects the price

The plumbing company sets the price after seeing the job; ask for it in writing before work starts.

  • Which line is blocked (branch drain or main line)
  • Whether there is a usable cleanout
  • Clearing method: cable machine or hydro jetting
  • Whether a camera inspection is needed
  • After-hours timing

Plumbing work we connect Washington, DC homeowners with

Drain Cleaning in Washington, DC: questions

Who clears a clogged sewer lateral in Washington, DC?

If DC Water finds its main is clear, you must hire a registered master plumber to clear the lateral at your own expense.

Does DC Water pay for sewer backup cleanup in Washington, DC?

Generally not. DC Water says owners maintain their lateral, but you can call (202) 787-2052 or file a claim if you believe DC Water is responsible.

Why is drain cleaning a common call in Washington, DC?

Old cast iron stacks in rowhouses and apartments narrow with buildup.

How old are most homes in Washington, DC?

The median home in Washington, DC was built in 1960, and 66% of homes were built before 1980 (U.S. Census Bureau, American Community Survey).

Who should I call for a drain that keeps clogging in Washington, DC?

A plumber can clear the clog and, if it keeps coming back, inspect the line to find whether grease, roots or a damaged pipe is the cause. In Washington, DC: old cast iron stacks in rowhouses and apartments narrow with buildup.

Who supplies water in Washington, DC?

DC Water. Past the meter, plumbing is the owner's.

More plumbing services in Washington, DC

Local rules and details for Washington, DC

Washington, DC facts behind this page

  • The median home in Washington was built in 1960. [1]
  • About 66% of Washington's housing units were built before 1980, the era of galvanized steel supply pipe, cast iron drains and clay sewer laterals. [1]
  • If DC Water determines the main sewer is clear, Washington, DC property owners must hire a registered master plumber to clear the sewer lateral at their own expense. The plumber must file a report with DC Water if the blockage is in the public portion of the lateral, and call DC Water for assistance if they cannot unclog that portion. [2]
  • DC Water says the property owner is required to maintain the sewer service line and remove any clogs in the lateral, and cleanup and damages are most often the owner's responsibility. DC Water generally does not pay cleanup costs; owners with information suggesting DC Water is responsible may call (202) 787-2052 or file a claim at www.dcwater.com/claims. [2]

Washington, DC rules and programs for drain cleaning

  • If DC Water determines the main sewer is clear, Washington, DC property owners must hire a registered master plumber to clear the sewer lateral at their own expense. The plumber must file a report with DC Water if the blockage is in the public portion of the lateral, and call DC Water for assistance if they cannot unclog that portion. [2]
  • DC Water says the property owner is required to maintain the sewer service line and remove any clogs in the lateral, and cleanup and damages are most often the owner's responsibility. DC Water generally does not pay cleanup costs; owners with information suggesting DC Water is responsible may call (202) 787-2052 or file a claim at www.dcwater.com/claims. [2]

Other common plumbing calls in Washington, DC

  • Water Line Repair: older rowhouses may still have lead service lines; DC Water runs replacement programs.
  • Sewer Backup: heavy storms can surcharge older combined sewers into basements.
Sources (2)
  1. U.S. Census Bureau, ACS 2024 1-year (B25035) · checked 2026-10-01
  2. DC Water, Know What to do if You Have a Sewer Backup · checked 2026-10-19
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