Sewer line cleaning means clearing the main drain that carries all your household wastewater out to the town sewer. When it blocks, every fixture can back up at once, and the lowest drain in the house takes the overflow. If that is happening in Dedham, MA, call our 24/7 emergency line, stop using water, and keep everyone out of the wet area until a plumber has opened the line.
Sewage coming up the floor drain right now.
Start with what you can control. Do not flush, run the sink, or start a load of laundry, because every gallon you add ends up on the basement floor. Open a window if the smell is strong, and keep children and pets away from standing water.
Sewage is a health hazard, not just a mess. Wear boots and gloves if you must cross the area, and do not mix cleaning products. Tell the dispatcher how many fixtures are affected and where water is appearing, so the plumber arrives with the right machine for a main line, and ask whether a camera is part of the visit.
Signs the blockage is in the main line.
- The lowest drain in the house gurgles or overflows first, often in a basement.
- More than one fixture is slow or backs up at the same time.
- Flushing a toilet makes water or bubbles rise in the shower or floor drain.
- A sewer odor shows up near the cleanout or in the basement.
- Running the washing machine sends water up the nearest drain.
- Cable clears one sink, but the whole house is still slow an hour later.
Any two of these point to the main. A single slow sink does not. For that, read about drain cleaning.
Sewer backup in the basement? Call now for 24/7 emergency dispatch.
Call (617) 752-0573Whose pipe is it? The Town sewer and your lateral.
The Town of Dedham maintains the sanitary sewer, which flows to MWRA interceptors and then to the Deer Island treatment plant. The pipe that runs from your house to the town main is a different matter, and where private responsibility ends is a question to put to the Dedham Engineering Department.
Call before you pay for a dig, because a blockage in the street main is the Town's to fix and a blockage inside your property line usually is not.
A plumber can help you tell the difference. If the cleanout at your foundation is clear and the water still will not move, the blockage may be past your property line. A camera run to the property edge shows what the cable cannot. Ask for that, and keep a copy of the footage if you need to speak to the Town.
Clean water in the sewer: Manor, Oakdale and Greenlodge.
After sewage backups were reported in the Manor neighborhood, the Town ran a door-to-door inspection program in 2024 and 2025 across about 1,600 properties in Manor and parts of Oakdale and Greenlodge. Inspectors looked for prohibited connections such as sump pumps and exterior roof drains tied to the sanitary sewer.
The Town states that it is a violation of federal, state and local law to discharge clean rain or groundwater into the sanitary sewer system.
What does that mean for you? If you live in those neighborhoods and your sump pump or a downspout drains into a sewer pipe, rain can overload the line and push sewage back into basements. Clearing the line gives only temporary relief. Tell the plumber about heavy rain before each backup, and call the Dedham Building Department about any connection that needs rerouting.
How a main sewer line gets cleared.
- The plumber locates the main cleanout, often a capped pipe near the foundation or in the basement floor..
- A large drum machine feeds a cable through the line with a cutting head matched to the blockage..
- The head breaks up roots, paper, grease or debris, and the cable is withdrawn while water starts to flow..
- Flow is tested by running water, and a camera pass shows whether the pipe is sound..
- You get a plain explanation of the cause and a recommendation, whether that is maintenance, jetting or a repair..
Tell us if you have no cleanout. Without one, the plumber may have to pull a toilet to reach the line, which adds time. Installing a cleanout during repair is a smart upgrade for any house that has none.
Cable machine or hydro jet for a main line.
| Method | Strength | Where it falls short. |
|---|---|---|
| Large cable machine | Breaks through roots and solid blockages quickly | Leaves residue on pipe walls. |
| Hydro jet | Scours the full pipe wall, good for grease and silt | Not for broken or collapsed pipe. |
| Camera first | Shows the cause before anything is cut | Adds time and does not clear the pipe by itself. |
Many backups call for both, a cable to open the line and a jet to wash it. Read about hydro jetting if your main has backed up more than once.
Main sewer cleaning, sewer drain cleaning and the plumbing around them.
You will hear the same service called main sewer cleaning or sewer drain cleaning. The work is the same. Ask the plumber which line they are cleaning and where the cleanout is.
After-hours sewer calls.
Backups do not follow business hours. They tend to arrive when the whole house is home, after a long shower session or a load of laundry. Our 24/7 emergency dispatch handles overnight and weekend calls, and same-day appointments are available when a plumber is free. For homes just across town lines, see our Westwood emergency plumbing page.
What sewer line cleaning costs and why quotes differ.
Expect the quote to rest on a few concrete things:
- Access to the main, since a clear cleanout is quicker than pulling a toilet.
- Length of the run from the house to the street, plus the equipment it needs.
- What is in the line: paper and grease clear faster than packed roots.
- Camera time before and after, which adds cost but prevents repeat visits.
- After-hours rates, which you should hear before the plumber starts.
Homeowner policies generally cover sudden and accidental damage rather than wear and tear, and sewer backups may need a specific policy add-on, so call your insurer before assuming coverage. Want your real number? Call (617) 752-0573.
Stopping the next backup.
Keep grease out of the drain, flush only toilet paper, and ask about a camera if the line has backed up twice. Roots and cracks need a sewer line repair, not another round of cabling.
Frequently asked questions.
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Yes. The 24/7 emergency dispatch answers overnight and on weekends, and we send a licensed plumber when one is available for your address. We do not promise a response time on the phone, but we do give you the plan and a clear price before work starts.
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Check whether the cleanout at your foundation is full. If it is clear and water still will not move, ask the Dedham Engineering Department about the street main. A camera shot to the property edge gives you real evidence either way.
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It can if clean water enters the sanitary sewer. The Town has inspected for sump pump and roof drain connections after reports of backups in Manor, so tell your plumber if backups follow storms.
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No. It cannot reach a main line blockage and it makes the water in your basement dangerous to handle. Wait for a plumber.
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No. A cleaning clears the blockage but does not seal a crack. A camera shows damage, and sewer inspection explains what to look for before a repair decision.
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No. Massachusetts treats clearing a blocked drain as a minor repair with no permit. Replacing piping does need a permit, and permits go only to licensed plumbers, so verify any contractor on the Mass.gov license lookup.
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Call right away and tell the dispatcher how many units share the line. A shared main can back up into the lowest unit, so quick action limits damage and tenant displacement.
Codes, standards and sources.
Plumbing work in Massachusetts is governed by 248 CMR 10.00, the Uniform State Plumbing Code, and plumbers are licensed by the Board of State Examiners of Plumbers and Gas Fitters. You can read the state's consumer fact sheet on plumbers and gas fitters before you hire anyone.
Local facts on this page come from the Dedham-Westwood Water District, the Town of Dedham, the other towns named and Mass.gov, and were checked in October 2026. Where a fact could not be confirmed, the page says to ask the utility or the town.