Longmont · Boulder County
Sewer Line Repair & Replacement in Longmont, CO
Old Town and central Longmont have clay and cast iron sewer laterals under mature trees.
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Longmont sewer line repair & replacement: call now
(833) 615-1180Local conditions
Sewer Line Repair & Replacement in Longmont: what's different here
Old Town and central Longmont have clay and cast iron sewer laterals under mature trees. Root intrusion and cracked pipe cause recurring backups.
A camera inspection pinpoints the damage; spot repair, lining or replacement follow depending on the pipe's condition.
The City of Longmont issues permits, and utility locates are required before excavation.
Homes that had sewer work after the 2013 flood may have a mix of new and old pipe on the same lateral. A camera inspection shows where the repaired section meets the original clay or cast iron, which is often where the next problem starts. Ask for the video so you have a record for future repairs or a sale.
Why sewer line repair & replacement calls happen in Longmont
- 1. Local condition
26% of Longmont homes date from 1960–1979.
- 2. Risk to the home
Clay and cast iron sewer lines of that age crack and let roots in.
- 3. What goes wrong
Recurring backups.
- 4. What to do
Camera the line before choosing repair or replacement.
Water actively leaking or backing up? Skip ahead to 24-hour emergency help in Longmont.
Housing figures: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, Longmont, CO.
Sewer Line Repair & Replacement: the full guide
More on sewer line repair & replacement: signs, steps and costs.
Sewer Line Repair & Replacement questions from Longmont homeowners
How long do clay sewer lines last?
Many last decades, but roots and settling cause failures over time.
Is lining a good option?
Often, when the pipe is intact enough; the camera shows it.
Do I need a permit?
Yes, sewer repair is permitted work in Longmont.
Service area
Sewer Line Repair & Replacement near Longmont
Related
Other Longmont services

Sewer Camera Inspection
A sewer camera inspection runs a waterproof camera through the main sewer line from a cleanout to the city main, recording roots, cracks, offsets, bellies and material changes, and locating problems by depth and position.
Learn more
Hydro-Jetting
Hydro-jetting sends high-pressure water through a drain or sewer line to scour grease, scale, sludge and fine roots off the pipe walls.
Learn more
Basement Sewer Backup
A basement sewer backup happens when the main sewer line is blocked or the city main surcharges, so waste comes up the lowest drain, usually the basement floor drain.
Learn moreGuides
Guides for Longmont homeowners
- Drains & sewerWhat Is a Sewer Line Belly?Read the guide
- Drains & sewerSewer Line Replacement Cost in Northern ColoradoRead the guide
- Drains & sewerTrenchless vs. Traditional Sewer RepairRead the guide
Comparing quotes? What Affects Plumbing Costs in Northern Colorado explains what drives the price.

Need sewer line repair & replacement in Longmont?
Roots, corrosion, soil movement.
