Project and article
Charlestown trenchless sewer lining
We renewed a 4-inch lateral that transitioned to a 6-inch main beneath a finished Charlestown basement using camera work, jetting and a continuous CIPP liner.
Problem and access
Repeated backups pointed to a deteriorated sewer with scale and cracking at the hub where the smaller lateral met the larger main.
Excavating the full run under finished space was a last resort. We planned interior access for inspection, cleaning and inversion equipment.
Camera inspection and liner design
High-definition camera work mapped defects along the lateral and confirmed the 4-inch to 6-inch transition beneath the finished basement.
The recording showed heavy scale, cracking at the hub and infiltration. Measurements from that footage sized a single continuous CIPP liner intended to bridge the transition.
Jetting and descaling
Technicians performed thorough hydro jetting and descaling to remove corrosion and buildup before resin work.
Cleaning cleared obstructions so the full run could be inspected, measured and lined from interior access at a basement tie-in.
From the job gallery
Liner installation and cure
A resin-saturated liner was inverted from the basement access and cured to form a continuous pipe wall across the size change and joints along the run.
The installation was completed indoors through the planned access opening rather than excavating along the full sewer path under finished space.
Branches and coating
Small branches received epoxy brush coating where branch condition and diameter suited that approach after cleaning and drying.
Result for the owner
The repair renewed the 4-inch to 6-inch transition while limiting excavation along the sewer route beneath finished space. Smaller branches were addressed with a different application method rather than forcing one solution across the whole system.
Filed under
- Boston Pipelining Company Charlestown
- Boston trenchless contractors
- Boston trenchless pipelining
- Charlestown basement sewer repair
- Charlestown cast iron pipe lining
- Charlestown CIPP lining
- Charlestown drain repair
- Charlestown sewer inspection
- Charlestown sewer lining
- Charlestown trenchless sewer repair
- Charlestown underground pipe repair
- commercial trenchless repair Boston
- cured in place pipe Charlestown
- epoxy brush coating Charlestown
- hydro jetting Charlestown
- no dig sewer repair Charlestown
- residential trenchless repair Charlestown
- trenchless pipe replacement Charlestown
- trenchless sewer rehabilitation Charlestown
- UV cured pipe lining Charlestown