Sewer line repair means fixing or replacing the section of buried pipe that carries wastewater from your house toward the town sewer. In Dedham, MA, that work ranges from a spot repair of one cracked section to trenchless lining or full replacement.
If sewage is surfacing, backing into the house or pooling in the yard, our 24/7 emergency dispatch can send a licensed plumber, and you should stop using water until they arrive.
Repair or replace: the decision most homeowners face.
The right fix depends on how much pipe is damaged, what it is made of and how deep it runs. A camera answers most of that, and a plumber should show you the footage before quoting. Use this table to see where your situation lands.
| What the camera shows | Typical option | Trade-off. |
|---|---|---|
| One crack or joint offset, rest of pipe sound | Spot repair by excavation | Digs a small area, fixes the problem point. |
| Roots through several joints, pipe still round | Trenchless lining | Less digging, needs a pipe that is not collapsed. |
| Long run of cracks or heavy scaling | Replacement or pipe bursting | Higher cost, longer fix, lasting result. |
| Collapsed or severely bellied section | Excavate and replace that section | Not suited to lining. |
| Clog only, pipe sound | Cleaning or jetting | No repair needed, may return. |
If your camera result is not clear, get the footage and ask a second licensed plumber to review it before approving a large job.
Signs the pipe itself is failing.
- Backups that return within weeks after each cleaning.
- A cable or snake that stops at the same distance every time.
- A wet, soft or unusually green patch in the yard along the sewer run.
- Sewer odor outside near the foundation or in the basement.
- Sinkholes or settling soil above the line.
- Slow drains in the lowest fixtures even though the cleanout is clear.
One sign could be a clog. Three or more usually point to a pipe problem. A camera is how you confirm which, and our sewer inspection page walks through that visit.
Sewage in the yard or basement? Call the 24/7 line for emergency sewer repair.
Call (617) 752-0573Sewer line repair for sewage backing up right now.
Active sewage in a house is an emergency, and so is a collapsed line that stops all drainage. Water cannot leave, and it will find the lowest opening. Shut off water use first, then call and describe what you see.
A plumber will usually clear the line to restore flow, confirm the damage with a camera and then discuss repair options. Emergency visits restore use of the house. The permanent repair may be scheduled for a day or two later, so ask what the timeline looks like and what you can use in between. Same-day appointments are available when a plumber is free, and after-hours dispatch runs around the clock.
Spot repair of a cracked pipe with root intrusion.
When roots have entered at a crack, cleaning only removes what is inside the pipe. The roots come back until the opening is sealed. A spot repair excavates to the damaged section, cuts it out and installs new pipe with proper couplings.
The advantage is precision. You pay to fix the part that failed instead of the whole line. The drawback is digging up the yard, driveway or basement slab. Before any digging, Massachusetts law requires a Dig Safe request, so ask the plumber to handle it.
You call 811 at least 72 business hours before excavation, and municipal water and sewer lines may not be marked, so ask the plumber how the crew will locate the line.
Trenchless lining and pipe bursting.
Trenchless repair avoids a long trench. In lining, a resin-soaked sleeve is pulled into the existing pipe, inflated and cured to form a new pipe inside the old one. In pipe bursting, a tool pulls new pipe through while breaking the old pipe outward.
Lining suits pipes that are cracked or rooted but still holding their shape. It does not suit a collapsed section or a bad belly where water pools. Ask the plumber what happens to your pipe diameter and where connections will go, and ask how they check the finished liner. Not every contractor offers trenchless work, so ask before booking.
Cast iron pipe repair in older Dedham houses.
About 74 percent of Dedham homes were built before 1978, per the town's Master Plan. Houses of mixed ages commonly have a mix of copper, galvanized steel, cast iron and plastic piping, though a plumber has to inspect your house to say what you have. Cast iron can rust, scale and crack over decades, which narrows the pipe and invites roots at joints.
If a camera shows cast iron with heavy scaling or cracks, the plumber may suggest replacing that run with modern pipe, or lining it if the shape is intact. Ask where cast iron transitions to other materials, because joints between old and new pipe are where leaks start.
Permits, licenses and who may do the work.
Under 248 CMR 10.00, the Uniform State Plumbing Code, replacing or repairing sewer piping is plumbing work that needs a permit from the local plumbing inspector. Permits are issued only to licensed plumbers, and clearing a blocked drain is the minor repair that does not need one. Call the Dedham Building Department to ask how the permit and inspection will run for your job.
Check your plumber's license before signing. The Mass.gov license lookup shows whether a master or journeyman plumber is in good standing, and the license type and number must appear on signs and ads. A contractor who says no permit is needed for a new sewer pipe is a warning sign.
If your property is on a private septic system instead.
Dedham's sanitary sewer is town-run, so a town sewer connection is the usual setup. If your property is on a private septic system instead, call us and tell the dispatcher so the right plumber is sent.
What sewer line repair costs and what shapes the quote.
Repair quotes vary more than almost any plumbing job, and these drivers explain why:
- Method: spot repair, lining, bursting and replacement carry very different labor.
- Depth and length of the damaged section.
- Surface restoration: lawn is simpler than driveway, patio or slab.
- Pipe material and size, plus connections to the street or cleanout.
- Permit and inspection steps, and after-hours work if the line has failed.
Homeowner policies generally cover sudden and accidental damage rather than wear and tear, so a pipe that failed from age may not be covered. Ask your insurer. Want your real number? Call (617) 752-0573.
What to do while you wait.
- Stop all water use, including laundry and showers..
- Keep children and pets away from sewage on the floor or lawn..
- Locate the cleanout and clear access to it..
- Take photos of any wet ground, damage or smell for your insurer..
- Write down when the symptoms began and any recent cleaning..
- If you rent, notify your landlord or property manager so repair is authorized..
Frequently asked questions.
.
Yes. The 24/7 emergency dispatch runs overnight and on weekends. A plumber can restore flow and assess the damage first, and the permanent repair may follow once the work is permitted and scheduled. We do not promise a response time, but you get the plan and price before work starts.
.
If backups return after each cleaning, a cable stops at the same spot, or the yard is wet along the pipe run, the pipe is the likely cause. A camera confirms it. A cleaned pipe with no cracks needs no repair.
.
Not always. Lining saves restoration and digging, but it is not suited to a collapsed line or a bad belly. Ask for both options in writing and compare.
.
The Town of Dedham maintains the sanitary sewer. Where its responsibility ends and yours begins is a question for the Dedham Engineering Department, so ask before you commit to a dig.
.
Yes, replacing or repairing piping needs a permit from the local plumbing inspector, and permits are issued only to licensed plumbers. Contact the Dedham Building Department for current steps.
.
It shows the location, length and type of damage, plus roots, offsets and scale. For buyers and repeat-backup homes, see the sewer inspection page.
.
The owner or property manager usually does. Call us with the address and access details, and we can coordinate with tenants for a same-day visit when a plumber is free.
.
Not usually, because the sewer and water service are separate pipes. If you also see a pressure drop, the water side may need leak detection.
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.