Visible water or soil entering
Groundwater coming through walls or joints means the structure is leaking.
CIPP Pipe Lining
Manhole Rehabilitation in Knoxville, TN
Restore cracked, leaking and deteriorating manholes with trenchless coatings and sealing.
- DiggingAccess points only
- MethodCured in place
- ResultSeamless pipe within a pipe
Manholes are the access points to sewer and storm systems, and they age quickly. Hydrogen sulfide corrodes concrete, joints leak, and frames and chimneys settle and crack. A failing manhole lets groundwater and soil into the system and can cause sinkholes around it. Manhole rehabilitation renews the structure from inside with sealing and structural coatings so it can serve for many more years without excavation.
We inspect the manhole, clean it, stop active leaks, repair the concrete and apply a structural lining or protective coating suited to the exposure. Frames, chimneys and benches are addressed as needed. We coordinate with property owners, managers and public agencies, and we document the work with photos and video.
When this is the right call
Crumbling concrete
Corrosion eats the interior and weakens the walls.
Settled frame or cover
A sinking cover is a hazard and an infiltration path.
Odors around the manhole
Cracks or poor seals can release sewer gases.
From first call to final video
- 01
Inspect and clean
Debris and loose material are removed.
- 02
Stop leaks
Active infiltration is sealed with specialty products.
- 03
Repair concrete
Damaged areas are rebuilt.
- 04
Apply lining
A structural coating or liner is installed.
- 05
Review
Photos and video show the finished structure.
Drag to compare.
Benefits that show up above ground
No excavation
Work happens inside the structure.
Stops infiltration
Less groundwater enters the system.
Protects against corrosion
A new surface resists sewer chemistry.
Extends service life
Delays costly replacement.
Manhole Rehabilitation: answers
Do you rehabilitate public manholes?
We work for owners and managers, and we coordinate with agencies where public structures are involved.
How long does a manhole take?
Many are done in a day or less, depending on size and condition.
Is traffic control needed?
Sometimes. We plan access and safety with the owner.
Can a manhole be too far gone?
Severely failed structures may need replacement, and we say so after inspection.
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