Service area
South Boston trenchless sewer repair
We lined corroded, leaking 4-inch and 6-inch cast iron sewers in a South Boston building from inside, without excavating the concrete floor along their route. We inspect, clean, line and coat your South Boston sewer the same way.
Our technician ran the inversion drum in the basement on our South Boston job.
Our South Boston job
We lined two sizes of leaking cast iron beneath a South Boston concrete floor.
Our camera showed scale and cracking along the building’s 4-inch and 6-inch cast iron runs, with leak risk at the deteriorated sections. The recording confirmed that cured-in-place pipe (CIPP) lining could renew both runs without excavating the concrete floor along their route.
We jetted out rust, grease and debris, staged our inversion drum indoors, inverted the resin-saturated liner under air pressure and cured it into a jointless wall inside the old cast iron. If your building’s cast iron runs beneath concrete, our recording shows whether we can line it the same way.
What our camera found. Scale and cracking along 4-inch and 6-inch cast iron runs, with leak risk.
What we did. Jetting, an indoor inversion drum and a liner cured inside the cast iron.
What it meant for the floor. No full-length excavation of the concrete floor along the runs.
Slide across these cast iron pipes to see leaks and scale lined over.
The South Boston sewers were corroded cast iron. These pairs show that condition and the jointless liner that renews it.
We line the scaled runs that carry your building’s waste.We jet the rust and scale out first, then cure your liner against the cleaned wall. 
We renew the lateral that leaves your building.Your lateral is lined inside the pipe already in the ground, from the access we plan with you.
We line these problems in South Boston cast iron.
Our recording shows which of these your runs have and whether each one holds the shape a liner needs.
Corrosion has thinned your cast iron wall.
We descale your pipe and cure a liner against it so the new wall carries your flow.
A deteriorated section is leaking.
Our liner covers the leaking joints and cracks along the lined run.
Scale is narrowing your building drain.
We jet the scale out and line your drain with a smooth surface.
A section has broken in.
We repair that section first, then line the rest when it holds its shape.
Our photographs show the camera work from this South Boston job.
We line your South Boston building sewer in five steps.
We record each cast iron run.
We record your 4-inch and 6-inch runs separately and measure the length of each one.
We jet out rust, grease and debris.
Cleaning shows the cracks along your runs and gives your liner a wall to cure against.
We stage our inversion drum indoors.
We set up inside your building and invert the resin-saturated liner under air pressure.
We cure the liner into a jointless wall.
The resin hardens inside your old cast iron along the lined run.
We record the lined runs before you use them.
Our final recording shows each lined run before your fixtures go back into use.
South Boston and BWSC
BWSC can reimburse lining a leaking South Boston lateral from your foundation to the street.
South Boston is served by the Boston Water and Sewer Commission. BWSC’s 2025 stormwater report says owners of verified leaking laterals may be reimbursed up to $8,000 to have a licensed, bonded contractor line or relay the lateral, and that the lining or relay must run from inside the building foundation to the public sewer in the street. That is the run we line from your basement.
BWSC confirms the leak, reviews your quotes and authorizes the work, then runs a dye test afterward. Our recording shows you where your cast iron leaks before you apply, and our final recording shows the lined run before BWSC tests it.
Owners of multi-unit buildings describe our lining work.
Our customers rate us 5.0 out of 5 from 56 Google reviews.
I own a small apartment complex in Newton. The sewer line was 80 years old. Boston Pipe Lining cleaned the old pipe and relined 90 feet all the way to the sewer main in the street. They were on-time, fast, efficient and very courteous. I would highly recommend them!
Debra P.Google review, Travis and his team did a great job repairing a pipe issue that caused repeated issues in one of my units. They were quick, efficient, very reasonable and fair with their pricing, and great communication throughout the process. Would highly recommend again
Jeendanie L.Google review, Promt, knowledgeable, communicative and professional. 10/10
Summa RealtyGoogle review,
We work in South Boston and the Boston neighborhoods around it.
We inspect, clean, line and coat your South Boston sewer.
We answer questions South Boston owners ask about cast iron.
Can you line both a 4-inch and a 6-inch run in my building?
On our South Boston job we lined 4-inch and 6-inch cast iron runs from inside. We record and measure each of your runs before we size their liners.
Will you break up my concrete floor?
On our South Boston job we avoided a full-length excavation of the concrete floor. We tell you before work starts whether your building needs any access opening and where it goes.
Does BWSC help pay for lining a leaking lateral?
BWSC’s 2025 stormwater report describes reimbursing owners of verified leaking laterals up to $8,000 to line or relay them from inside the foundation to the public sewer. BWSC verifies the leak and confirms eligibility first.
Can my tenants keep using the building during the work?
The fixtures that drain into the section we are lining are out of use during installation and cure. We list them with you so you can tell your tenants which ones and for how long.
Tell us about your South Boston building’s sewer.
Send us your address, the units that share your drains and which fixtures back up.
