A drain cleaning technician clears blocked drain and sewer lines: cabling, hydro jetting, camera inspection and locating.
Federal statistics count the role inside the pipe trades — O*NET lists Drain Technician among the reported job titles for Plumbers, Pipefitters, and Steamfitters — and the same work is listed as drain tech, sewer and drain technician, or drain cleaner.
This guide covers the work, the licensing rules, the pay and the path.
What is a drain technician?
A drain cleaning technician is the pipe-trades specialist who clears blocked drain and sewer lines and works out why they block.
Some shops say sewer technician, drain and sewer technician or just drain tech; some job ads say drain cleaner.
They all describe one role: clogs cleared, lines cleaned, causes diagnosed.
The titles are not separated anywhere in federal data.
O*NET — the federal occupational database — lists Drain Technician among the sample job titles reported for Plumbers, Pipefitters, and Steamfitters (SOC 47-2152.00), next to Plumber, Pipefitter, Pipe Welder and Fire Sprinkler Service Technician.
Practically, that means the government counts drain techs inside the broader pipe-trades occupation, and every federal wage and outlook figure for this job comes from that combined group.
Drain techs work for residential and commercial plumbing contractors, for dedicated drain cleaning companies, and on municipal sewer crews.
The day-to-day differs from a plumber's: plumbers install and repair the whole water and drainage system in a building, while drain techs specialize in the lines that carry waste away — cabling, jetting, camera work, locating.
Where that boundary sits in licence terms depends on the state, and the full drain technician versus plumber comparison is a topic of its own.
Typical drain and sewer calls
Fixture and branch line clogs are the routine calls: kitchen sinks, bathroom sinks, tubs and showers, laundry standpipes.
These are short runs close to the fixture, and a cable machine usually clears them.
Main line stoppages are the bigger calls — and the urgent ones.
When the sewer line leaving the building blocks, everything backs up at once: floor drains, toilets, showers.
The clog may be grease, hair or root intrusion, or the line itself may be damaged rather than merely blocked — and that distinction, cleaning versus repair, is the judgment call a drain tech makes on every serious stoppage.
Diagnosis is where the camera comes in.
After a cable or jet opens a line, the tech runs an inspection camera through it to see what caused the blockage and what shape the pipe is in, and locating equipment traces the line from the surface so a repair can be marked before anyone digs.
When the line turns out to be damaged rather than blocked, the fix may be a spot repair or a trenchless repair instead of another cleaning.
Equipment drain techs use
The kit sorts into four jobs that match the trade's tasks: cable machines to open blocked lines, hydro jetters to clean them, inspection cameras to see inside them, and locators to trace a line from the surface.
The jetting side is where our research hit its limits: jetter pressure and flow ranges, and the industry safety guidance around them, were not confirmed by the sources we checked, so we won't quote numbers here.
Treat the manufacturer's specs and a jetting safety course as the authority before you run one.
The inspection side carries its own training track: NASSCO runs PACP, LACP and MACP classes for pipeline, lateral and manhole condition assessment, plus ITCP-CIPP training for cured-in-place pipe inspectors.
Do you need a license?
The honest answer: it depends on where you work.
Who may open a drain, and under whose supervision, is set by state licence law — and in some places by cities and counties rather than the state at all.
New York shows the local pattern: the state has no statewide plumber licence, and plumbing licences are issued locally by cities.
Compare Texas and West Virginia and you get two opposite answers to the same question.
Texas plumbing law defines a drain cleaner-restricted registrant: someone registered with the state plumbing board who clears obstructions in sewer and drain lines through code-approved existing openings, under a responsible master plumber's supervision.
The next rung, the drain cleaner registration, requires at least 4,000 hours working as a drain cleaner-restricted registrant under that master-plumber supervision, and adds the authority to install cleanouts and remove and reset P-traps to clear obstructions.
The state issues these registrations at $18 each, alongside a Residential Utilities Installer registration that requires 2,000 hours as a Plumber's Apprentice — and all three renew only with at least six hours of approved training a year.
West Virginia draws the line differently: unclogging a sink, replacing a faucet or washer, and installing a dishwasher are not "plumbing work" requiring a plumber licence there.
Registered, supervised work in one state; outside the plumber-licence requirement in the next.
The answer changes at the state line, so confirm the requirement where you will work — your state plumbing board, or your city or county if licensing is local there.
Rules change, and they change locally
Pay and commission
Federal wage data does not isolate drain technicians.
BLS publishes one wage series for the whole pipe-trades occupation — Plumbers, Pipefitters, and Steamfitters, SOC 47-2152 — and no drain-only figure, so any national number for this job is that combined category used as a proxy.
The median wage for that occupation was $30.67 an hour, or $63,800 a year, in May 2025 (OEWS, released May 15, 2026).
Median means half the occupation earned more and half earned less — and the occupation includes plumbers, pipefitters and steamfitters, not just drain techs, so treat it as the pay band of the trade the job sits inside.
Commission matters for how you read that number.
BLS's OEWS figures include base pay, commissions, production bonuses, incentive pay and tips, while excluding overtime pay, shift differentials, nonproduction bonuses such as sign-on and holiday bonuses, and benefits — so a tech who works overtime can take home more than the OEWS figures show.
For the full tables — national percentiles and state-by-state medians — see the drain technician salary page, which uses the same combined occupation as its proxy and says so.
Path from drain tech to plumber
Experience is the currency of this path, and Texas's drain-cleaner ladder shows how a state can structure it: a drain cleaner-restricted registrant's supervised hours under a responsible master plumber are what the state's drain cleaner registration is built from.
Whether and how experience like that counts toward a plumber licence is a separate question, and each state's board decides it — what experience counts, under whose supervision, and what exam follows.
The outlook case comes from the combined occupation: BLS projects employment of Plumbers, Pipefitters, and Steamfitters to change 6.8% from 2025 to 2035, with about 42,000 openings a year on average — well above the 3.5% average across all occupations.
Drain techs sit inside that projection.
Where the path leads: techs who want the fuller trade — installing and repairing the whole water and drainage system, not just clearing it — build toward whatever supervised hours their state requires, then the journeyman-level licence, and from there the master level if they keep climbing.
And confirm the rules where you live — what experience counts, at which board — before you plan your years around them.
Browse the drain technician jobs on HVACHires to see what employers ask for in live postings.
Career information, not legal advice — licensing and registration requirements are set by state plumbing boards and, where licensing is local, by cities and counties. Confirm the current rules with the authority where you work before you act on them.