Drains & sewer
Trenchless vs. Traditional Sewer Repair
Updated · Kestrel editorial
Lining
A resin liner cured inside the old pipe; best for cracked but aligned lines.
Pipe bursting
New pipe pulled through as the old one is fractured; good for full replacements with limited access pits.
Open trench
Required for bellies and collapses. See sewer line repair.
When trenchless isn't an option
Severely collapsed pipe, major bellies, or a line that needs its slope corrected usually require excavation. A camera inspection and locating tell the plumber which method will actually work.
What to expect on the day
Trenchless work typically needs one or two small access pits and a camera inspection before and after. Traditional replacement excavates along the line; lawns, driveways or trees may need restoration afterward.
Trenchless vs. Traditional Sewer Repair: follow-up questions
Is trenchless sewer repair permanent?
Pipe lining and pipe bursting are long-lasting repairs when the host pipe and conditions are suitable.
Do I need a permit for sewer replacement?
Yes, sewer replacement typically requires a permit and inspection in Northern Colorado cities.
Does trenchless repair need a permit?
Yes, most Northern Colorado cities require a permit and inspection for sewer line repair or replacement.
Will I have water service during the work?
Water usually stays on, but you can't use drains until the sewer is reconnected.
Every home differs; editorial standards.