Trenchless pipe lining repairs buried drainage from access points such as existing chambers. We use it where the pipe can accept an internal repair and excavation along the full run would disrupt a building, driveway or working area. CCTV findings establish whether the damaged pipe can accept the repair.
Trenchless Pipe Lining
Trenchless pipe lining can repair suitable buried drainage through existing access while limiting excavation.
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Installation space
Bends, diameter changes and chamber space can determine whether a liner can be installed.
Liner preparation
A small access excavation may enable an internal repair along a much longer section.
Pipe condition and installation access
The liner must pass through the available opening and follow the bends and diameter changes in the drain. Chamber dimensions affect the equipment that can be used. Severe flattening, collapse or a serious fall problem may require replacement instead. Lining retains the existing route and levels.
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Preparing the run
Deposits and roots are removed so the liner can be installed against the prepared pipe wall. Branch connections are identified before installation and reopened where the chosen system covers them. Connected wastewater flows are controlled during preparation and curing, with completion checks before the drain returns to use.
When local excavation is still needed
A short excavation can provide installation access or replace a failed section while suitable pipework elsewhere on the run is lined. Any such excavation is identified before the lining work begins.
Trenchless Pipe Lining: common questions
Is trenchless lining the same as CIPP?
Cured-in-place pipe lining is one trenchless method. The job details identify the system selected for the repair.
Can lining reach a drain beneath a building?
It can where the existing chambers and pipe route allow preparation and installation.
Will a liner correct a sagging drain?
It follows the existing levels. Replacing or realigning the affected section may be required to correct the fall.
What happens to branches covered by the liner?
They are identified in advance and reopened where required before the repaired drain returns to service.
Can the drain stay in use while the liner cures?
Incoming flows must be controlled. We confirm the temporary restrictions for the connected facilities before installation.