After lining a main
Every active connection must be reinstated.
CIPP Pipe Lining
Lateral Reinstatement and Cutter Robots in Knoxville, TN
Robotic cutters reopen side connections after lining so every fixture drains like before.
- DiggingAccess points only
- MethodCured in place
- ResultSeamless pipe within a pipe
When a sewer main is lined, the liner covers the openings where lateral pipes connect. Reinstatement is the process of reopening those connections so every home, drain and branch flows again. It is done with a camera-guided robotic cutter, and precision matters: too small and flow is restricted, too rough and roots find a way in. Our crews treat reinstatement as part of the repair, not an afterthought.
After the liner cures, we run a robotic cutter that locates each opening using the video and cuts a clean, correctly sized hole. We check every connection by camera and clear cuttings from the line. For tight or complex junctions we pair reinstatement with connection liners to seal the joint. You get a complete video record of every reopened lateral.
When this is the right call
Lateral flow problems after repair
A poorly cut connection can restrict flow.
Branch lines that dead-end
Unused laterals may be left sealed on purpose.
Complex junctions
Multiple connections close together need careful work.
From first call to final video
- 01
Map each connection
We note the location and size of every lateral from video.
- 02
Run the cutter
A robot cuts each opening through the cured liner.
- 03
Clean up
Cuttings are removed from the line.
- 04
Check each opening
Camera confirms clean, correctly sized cuts.
- 05
Seal if needed
Connection liners can finish the junction.
Drag to compare.
Benefits that show up above ground
Every fixture works
Properly cut openings restore normal drainage.
Clean, smooth edges
Less snagging and better long-term flow.
Fully documented
Video shows each connection.
Part of one repair
Done in the same visit as lining.
Lateral Reinstatement: answers
What happens if a lateral is missed?
We verify each connection by camera. If one is missed, the cutter returns to open it.
Can a robot cut every size?
Cutters handle many standard connection sizes, and we select tools for your pipe.
Does cutting weaken the liner?
Reinstatement is a normal part of lining. Clean cuts and, where useful, connection liners keep the system strong.
Is this offered by itself?
Yes, when a previously lined pipe needs a connection reopened.
Often needed alongside this
Lateral Connection LiningSeal the junction where your lateral meets the main so the whole system is watertight.Explore 
Sewer Main LiningStructural lining for the larger sewer line that carries everything from your property out to t…Explore 
CIPP Pipe LiningA seamless, jointless new pipe formed inside your old one, with no trench through your yard, dr…Explore 
Post-Lining VerificationA final camera run after every repair that proves the pipe is smooth, sealed and fully reconnec…Explore