Project and article
Repairing 4-inch sewer laterals in Boston
We inspect, clean and renew 4-inch sewer laterals in Boston with trenchless methods when your lateral's joints have failed but it still holds its shape.
A long 4-inch lateral can back up far from the fixture you notice.
Your building may discharge through a 4-inch cast iron or clay lateral before it ties into a larger main.
When your lateral is long, small offsets and root entry at its hubs can cause backups far from the first fixture you notice.
We map and clean your lateral before we measure it for a liner.
Our camera work maps the length, material changes and defects along your lateral. Cleaning removes grease and roots so the recording and liner measurements are reliable.
If you already have footage, mention it when you contact us so we can plan whether a new recording is needed.
We line or coat your lateral depending on its diameter, access and condition.
We install a cured-in-place pipe (CIPP) liner inside your lateral when its diameter and access support structural renewal.
We may apply brush coating to a short branch or section where our camera review shows a full liner is not practical.
We reach your lateral through a controlled opening inside the building.
If your lateral runs beneath a finished basement, we can renew it through controlled interior access instead of trenching its full length.
Before we begin resin work, we explain where we will tie in and which of your fixtures will be affected.
These photographs show the lining control and camera equipment we use.
We answer questions about lining your 4-inch lateral.
How long can a 4-inch lateral be and still be lined?
The length we can line depends on your lateral's bends, its access and our equipment. Our camera measurements and your property's layout show what is feasible.
Will your 4-inch lateral ever need excavation?
Yes, if your pipe has collapsed, is severely offset or cannot be reached for installation. Our camera guides that decision.