Main Sewer Line Clogged? Who to Call First in Berks County

If more than one drain in your house is acting up at once, the clog is in the main sewer line, not in a single fixture. Stop using water anywhere in the house right now, because every drain feeds that one pipe. Then find out whether your town will check the pipe out at the street before you pay a plumber, and call a plumber from the county plumbers page who clears the line and puts a camera down it.

Is it the main sewer line or just one drain?

A main line clog shows up in more than one place at once. Several fixtures drain slowly or back up together, a toilet or tub gurgles when a sink or the washing machine runs, and water rises at the lowest drain in the house. If one sink is slow and everything else drains fine, that's a fixture clog, and a plunger at that sink is the right tool.

Every drain in your house feeds the same pipe from your house to the sewer main, which plumbers and the towns call the lateral. When that pipe is blocked, a shower upstairs or a washing machine cycle has nowhere to go but the lowest opening in the house. So tell everyone to stop: no flushing, no laundry, no dishwasher, until the line is cleared.

Why main sewer lines clog in older Berks houses.

The usual causes are the ones you'd guess: wipes, including the ones sold as flushable, fats and grease poured down the kitchen sink, tree roots working in through cracks and joints, and storm water overloading the sewer in a heavy rain. In an older Berks house, though, the pipe itself is often the cause.

More than a quarter of the homes in the county were built before 1940, and in the city of Reading it's more than half. Lines from that era are clay tile, whose joints are where roots get in, or cast iron, which corrodes.

Houses built from the 1940s into the 1970s can have a different problem. Some were plumbed with Orangeburg, a pipe made of compressed wood fiber soaked in coal tar that was sold as good for fifty years; as the tar dries out, roots get in and the pipe fails. Any of these pipes can also develop a belly, a sag where the soil under the pipe softened, and that low spot holds solids until it clogs again and again.

Who to call first depends on your town.

In some Berks towns the part of the pipe out under the street gets checked or cleared free, so the first call isn't always a plumber. The table below covers a sample of Berks towns. If yours isn't listed, your own sewer office or authority has the answer.

Where you live	Who to call first	The number
City of Reading	The City's sewer department, or the Citizens' Service Center	610-655-6008 or 1-877-727-3234
Mount Penn, Lower Alsace, and the parts of Exeter, St. Lawrence and Reading served by the Antietam Valley authority	The authority; it checks the main and its part of the line free and repairs its part free	610-779-0150, weekdays 7 to 3:30; pager 484-333-1436 after hours
West Reading	The Borough, day or night; Public Works plunges the sewer trap near your house as part of the sewer fee	610-374-8273, ext. 221; after hours 610-373-0111
Shillington	A licensed plumber; if the block is on the Borough's side, from the trap out to the main, the plumber calls Town Hall	610-777-1338; after hours 610-655-4911
Spring Township	A plumber; if the block is at the main in the street, call the Township with the plumber's name and number	610-678-5393 or 610-678-4448

Each town's own sewer page, in its own words, read September 2026.

Before anyone shows up, find the cleanout, the capped access pipe a plumber opens to reach the line. It's yours, not the town's, and not every older house has one. If you know where it is, tell the dispatcher; if you don't, the plumber will find it.

What you can try tonight, and what not to pour down the drain.

If it's a single fixture, plunge it. If the signs point to the main line, the plunger can't reach the problem, and the things people reach for next make it worse. Start with the bottle: a chemical drain cleaner is made for sinks, tubs and showers, not for a main line.

The label says not to use it in toilets, and never to plunge after pouring it, because it can still be sitting in the standing water. Some of these cleaners contain sodium hydroxide, which burns, and if anyone gets splashed or swallows it, Poison Help is 1-800-222-1222.

You might be thinking about renting a drain machine, which runs about $50 a day. The rental chart marks the lighter cables not for roots, and a main line with roots in it calls for the heavier 5/8-inch cable and up. The snake in your garage is for a single fixture; on a main line with roots the light cable won't cut them, and it can scratch the walls of an old pipe.

Cable, jetter or camera: what each does and what it costs.

Three tools do the work. A cable machine is a snake or auger, a cable with a cutting head that a machine spins down the pipe; it cuts roots and pulls out objects. A jetter is a hose that blasts water down the pipe; it clears grease, sand and sludge and scours the pipe wall. Cables have a hard time with grease, so grease is the jetter's job. A camera shows what's in the pipe and where.

For roots the usual order is cable first, then jetter, then the camera to confirm. On old clay or cast iron the jetter's pressure is turned down or another method is used, so tell the plumber how old the house is.

The camera is the part I'd insist on: clearing tells you the water goes down again, and the camera tells you why it stopped. Nationally, clearing a main line clog runs $187 to $569 as of 2026, with the average around $376. The rows below are the going rates for each service; a plumber prices the visit as one job, and the quote should say which of these it includes.

The job	National range	What the figure covers
Clearing a main sewer line clog	$187 to $569, average $376	The whole clearing job
Hydro jetting	$350 to $600, average $475	Standard residential jetting job
Camera inspection before a clearing	$200 to $1,300	Added to the clearing visit
Camera inspection at the start of a repair or replacement	$100 to $500	The inspection that opens a repair job
Standalone camera inspection	$271 to $1,726, average $995	The inspection as its own job

National cost guides, updated June 2026.

Bundling the camera with the clearing trims the bill, so ask for it as part of the same trip. Some Berks plumbers bill sewer blockages by time and materials rather than a flat price. Our post on how Berks plumbers price a job explains those billing styles and the trip fee.

When you're ready to call, start with the county plumbers page and look for a company that names the camera in its drain work; if it's the middle of the night, our plumber hiring guide covers what to ask before you say yes. JB Plumbing HVAC in Reading prints its price: most drain cleaning jobs run $300 to $500 with main sewer line work on the higher end, and the job includes a camera pass, jetting, a second camera pass to confirm and a 30-day guarantee.

Berks Plumbing & HVAC Specialist in Reading inspects first and writes the quote on the spot, using a camera to locate the block and jetting to clear it.

When a clog turns into a replacement conversation.

It becomes a replacement conversation when the camera shows a break, a collapse, a belly, or roots that keep coming back. A bellied pipe can't be cleared back into shape; it has to be replaced, and nationally that runs $1,500 to $3,000. Before you agree to dig up the front of the house on a camera diagnosis, get a second opinion.

If the camera shows roots but the pipe is sound, you're in maintenance territory. Roto-Rooter's Reading branch suggests a main line inspection every 18 to 24 months for houses with mature trees or original clay or cast iron lines.

Questions Berks homeowners ask about a main line clog.

Does homeowners insurance cover a sewer backup?

A standard homeowners policy excludes water that backs up through sewers or drains. Coverage for it is sold as an add-on to the policy, so ask your agent whether yours has one.

How much does it cost to roto-rooter a sewer line?

Roto-rooter gets used as a word for any cable clearing. Nationally, clearing a main line clog runs $187 to $569 and jetting runs $350 to $600 with an average around $475, which makes jetting the pricier of the two ways to clear a line. Roto-Rooter is also a company, with a branch in Reading.

How do I clean up after a sewer backup?

Sewage carries bacteria and viruses, so wear gloves and boots, keep it away from your face and eyes, and wash any cut that touched it. Disinfect hard surfaces with one part household bleach to ten parts water. Rugs, wallboard and upholstered furniture that soaked it up usually get replaced, not cleaned.

Does a plumbing job billed on time and materials still need a written estimate?

Yes, on any job over $500. Under the state's home improvement law, a job billed on time and materials still needs a written estimate, and the final bill can't run more than 10 percent over it without a signed change order.

So tonight, stop using water, check your town's first call, find your cleanout, and hire a plumber for a clearing that ends with a camera pass. Tomorrow you'll know whether you had a clog or a pipe problem, and that's the difference between a few hundred dollars and a trench.

Sources

• Borough of West Reading, "Sewer Backup" and its FAQ: call the Borough first, the trap plunged as part of the sewer fee, curb-to-main versus house-to-curb, and the list of what causes blockages.
• Antietam Valley Municipal Authority, "Sewer Backups" and its home page: call the authority first, the free on-site check, the public lateral to the vent and cleanout behind the curb, its note on insurance coverage, and the towns it serves.
• Spring Township, sewer billing and FAQ: a plumber first, then the Township if the block is at the main.
• Shillington Borough, "Sewer": a licensed plumber first, the Borough side from the trap out, the after-hours number, and the owner's vents and cleanouts.
• Reading Area Water Authority, FAQ and City of Reading Public Works FAQ: the City sewer department and Service Center numbers, the two sewer boxes at the curb, and the intake question about water at the curb stacks.
• Pennsylvania American Water, "Rights and Responsibilities": what a cleanout is, that not every house has one, and that it belongs to the homeowner.
• U.S. EPA, "Sanitary Sewer Overflow (SSO) Frequent Questions": wipes, grease, roots and storm water as causes; the health hazards of sewage; what has to be replaced after a basement backup.
• American Public Works Association, Minnesota Chapter, "The Rise and Fall of Orangeburg Pipe": what Orangeburg is, its 1940s to 1970s use, its advertised 50-year life, and how roots get in.
• U.S. Census Bureau, ACS 2020 to 2024 five-year estimates, table B25034, Berks County and City of Reading: homes built 1939 or earlier.
• Drano (S.C. Johnson), FAQ and Max Gel label directions: the drains the product is made for, not for toilets, never plunge after use.
• MedlinePlus (National Library of Medicine), "Drain cleaner poisoning" (reviewed January 8, 2025): sodium hydroxide in some drain cleaners and the Poison Help line.
• General Pipe Cleaners, "Rental Cable Equipment Selection Guide", "Water Jetters vs. Drain Cable Machines" and "Water Jetting Equipment Best Practices": which cables are for roots, what a cable does versus a jetter, and the cable-then-jet-then-camera order.
• HomeAdvisor, "Main Sewer Line Clog Repair Cost" (June 19, 2026), "Hydro Jetting Cost" (June 19, 2026), "Sewer Camera Inspection Cost" (June 19, 2026) and "Sewer Main Repair Cost" (June 19, 2026): the national ranges in the table, the bundling advice, and the pressure caution on deteriorated pipe.
• This Old House, "Sewer Line Replacement Cost" (March 30, 2026): a camera inspection at $100 to $500 before a repair.
• Fixr, "Cost to Unclog Main Sewer Line" (January 31, 2025): the signs of a main line clog, bellied pipe replacement $1,500 to $3,000, the rental snake at about $50 a day, the washing machine effect, and "roto rooter" as a name for cable clearing.
• Bob Vila, "Hydro Jetting Cost" (January 31, 2024): the caution on jetting clay and some cast iron.
• JB Plumbing HVAC, "Drain Cleaning", Berks Plumbing & HVAC Specialist, "Drain & Sewer", Roto-Rooter Reading, Lincoln Plumbing and Heating and Close Comfort: each company's published price, process and policy as read in September 2026.
• City of Portland Environmental Services, "What to Do After a Sewer Backup": protective clothing and the one-to-ten bleach solution.
• Homeowners 3 Special Form, HO 00 03 05 11 (Insurance Services Office, 2010), as hosted by the Maine Bureau of Insurance, Limited Water Back-Up and Sump Discharge or Overflow Coverage, TRUE 04 95 06 25 and Pennsylvania Home Improvement Consumer Protection Act: the sewer backup exclusion, the add-on that covers it, and the written estimate and 10 percent rule for time-and-materials work on jobs over $500.