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Lebanon County · City of Lebanon

Plumbing Services in Lebanon, PA

In Lebanon, one authority treats both your drinking water and your sewage, and it is in the middle of a major upgrade to its wastewater plant. Seven in ten homes predate 1960 and winters are among the coldest we cover. Here’s what that means for the plumbing in your house.

Last reviewed Nov 9, 2026

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Local snapshot

Lebanon homes, by the numbers

Housing age, home type and winter cold shape which repairs come up most.

1704217046

Built 1939 or earlier
39.9%
Built before 1960
70.6%
Rowhomes & townhouses
33.7%
Nights at or below 32°F
~120

U.S. Census Bureau ACS 2020–2024 5-year estimates; NOAA U.S. Climate Normals 1991–2020. All sources

On this page
  1. One authority for water and sewage
  2. Housing: older than it looks from the street
  3. Is it your line or the main?
  4. Among the coldest winters we cover
  5. Renovating a pre-war Lebanon house
  6. Hiring in Lebanon
  7. Lebanon plumbing questions

One authority for water and sewage

The City of Lebanon Authority handles both ends of the system. Its water treatment plant, rated at about 10 million gallons a day, treats water drawn from Swatara Creek and Highbridge Reservoir and supplies the city and six surrounding communities. The same authority owns and operates the wastewater treatment plant, which is being upgraded with the help of a state PennVEST loan of about $27.9 million.

For you, the split of responsibilities is the usual one:

  • The authority handles the treatment plants and the public mains: a main break, a neighbourhood pressure problem, discoloured water or sewage overflowing in the street.
  • You and your plumber handle the plumbing inside the house, the water service line on your property and the sewer lateral to the main.

When in doubt, call the number on your bill first and ask where the problem sits.

Housing: older than it looks from the street

Lebanon’s housing is overwhelmingly pre-1960. Census estimates put about seven in ten homes in that bracket, with four in ten built in 1939 or earlier and a median year of 1947. Roughly a third are rowhomes or townhouses and another third detached houses.

Houses from that era often hide a mix of materials:

  • Clay or cast iron laterals that crack, separate at joints and let in roots. Repeat backups after cleaning are the signal to look at the pipe; see sewer backup repair.
  • Cast iron building drains that rot along the bottom, sometimes showing as a damp spot or sewer smell in the basement; broken sewer line repair explains how a single bad section is fixed.
  • Galvanized water lines narrowing over time. If pressure has faded for years, water line replacement explains the options.

Is it your line or the main?

A few quick checks tell you whether a drain problem is yours to fix or the authority’s to hear about:

  • Only one fixture is slow: a local clog in that sink, tub or toilet.
  • Every drain in the house is slow, or water rises at the basement floor drain: your lateral or building drain is the likely cause, especially in an older house.
  • Neighbours on the same street are backing up too: the public main may be blocked. Call the authority’s number on your bill.

When it is your line, clearing it is the first step and a camera inspection the second. Without the camera, you won’t know whether the clog was a one-off or the first sign of a broken pipe.

Among the coldest winters we cover

Roughly 120 nights a year at or below freezing, about 46 inches of precipitation and an average winter low near 24°F: those are the normals at the nearest NOAA station with temperature data, and they put Lebanon among the colder and wetter places on our list.

Practical consequences:

  • Frozen pipes in exterior walls, unheated porches and basements near foundation vents. Shut outdoor faucets off from inside in the fall, and see burst and frozen pipe repair if one splits.
  • Wet basements in spring, when snowmelt and rain raise groundwater. A working sump pump that discharges outside, not into the sewer, protects both your basement and the authority’s plant from extra water.
  • Water heaters working harder in winter, when incoming water is colder. If yours is old, rumbling or slow to recover, water heater repair covers when to repair and when to replace.

Renovating a pre-war Lebanon house

Opening walls for a kitchen or bathroom is the cheapest moment to deal with plumbing that is decades past its prime. While the walls are open, ask the plumber to assess:

  • The cast iron stack behind those walls, which is far easier to replace now than after new tile goes up.
  • Galvanized branch lines feeding the rooms you are remodelling, and whether the run back to the main is worth replacing too.
  • The main shutoff, which on old houses often won’t close fully; a new ball valve is a small add-on.
  • A cleanout on the building drain, so future clogs don’t mean pulling a toilet.

Most of this work needs a permit; ask who will pull it.

Hiring in Lebanon

For sewer work in particular, insist on seeing the camera video and the measured distance to each defect before agreeing to dig. Confirm the diagnostic charge up front and check that the plumber is registered with the Pennsylvania Attorney General under the home improvement law. Our how calls work page lists the rest.

Local contacts

Water and wastewater treatment: City of Lebanon Authority. Sources, including state permit documents for both plants, are linked below.

Call a Lebanon plumber (717) 310-9276

Lebanon plumbing questions

Where does Lebanon’s tap water come from?

The City of Lebanon Authority treats water from Swatara Creek and Highbridge Reservoir at a plant rated around 10 million gallons a day.

Who treats the sewage?

The City of Lebanon Authority owns and operates the wastewater treatment plant.

Is the authority upgrading the sewage plant?

Yes. Upgrades are being funded with a PennVEST loan of about $27.9 million.

My drains keep backing up. Is that the authority’s problem?

Usually not, if only your house is affected; the cause is typically your lateral. Several houses backing up at once points to the public main.

What fails first in a 1940s Lebanon house?

Laterals, cast iron drains and old supply lines, followed by water heaters and fixture valves. For anything urgent, see emergency plumbing.

Sources

  1. U.S. Census Bureau, ACS 2020–2024 5-year estimates, Table B01003 (Total population) — retrieved Nov 8, 2026
  2. U.S. Census Bureau, ACS 2020–2024 5-year estimates, Table B25034 (Year structure built) — retrieved Nov 8, 2026
  3. U.S. Census Bureau, ACS 2020–2024 5-year estimates, Table B25035 (Median year structure built) — retrieved Nov 8, 2026
  4. U.S. Census Bureau, ACS 2020–2024 5-year estimates, Table B25003 (Tenure) — retrieved Nov 8, 2026
  5. U.S. Census Bureau, ACS 2020–2024 5-year estimates, Table B25024 (Units in structure) — retrieved Nov 8, 2026
  6. NOAA NCEI U.S. Climate Normals 1991–2020, station LEBANON 2 W, PA US (USC00364896), 3 km away — retrieved Nov 8, 2026
  7. PA DEP — NPDES fact sheet, City of Lebanon Authority water treatment plant (10 MGD, Swatara Creek and Highbridge Reservoir) — retrieved Nov 9, 2026
  8. PA DEP — NPDES fact sheet, City of Lebanon Authority wastewater treatment plant — retrieved Nov 9, 2026
  9. LebTown — City of Lebanon Authority sewer bonds and PennVEST-funded plant upgrades (2025) — retrieved Nov 9, 2026

Local risks

What goes wrong in Lebanon homes

One authority for both water and wastewater, older housing and cold, wet winters.

Call a plumber(717) 310-9276
  • One authority, both ends

    The City of Lebanon Authority treats the drinking water and owns and operates the wastewater plant.

  • Wastewater plant upgrade

    Plant upgrades are being funded with a PennVEST loan of about $27.9 million.

  • Seven in ten pre-1960

    About 71% of homes were built before 1960, with a median year of 1947.

  • About 120 freezing nights

    Roughly 120 nights a year at or below 32°F and about 46 inches of precipitation.

Services

Plumbing help in Lebanon

Plumbing problem in Lebanon?

One call, answered 24/7, connects you with an independent local plumber who serves your address.

Call a plumber(717) 310-9276
Call a plumber(717) 310-9276