Boulder, CO · plumbing service
Sewer Line Repair in Boulder, CO
Old clay laterals crack in expansive soils. Call to be connected with an independent, licensed plumber who handles sewer line repair in Boulder; they diagnose the problem and quote the work before starting.
By calling, you agree to be connected with an independent plumbing contractor serving your area. Calls may be recorded for quality and training. The call and referral are free, and you are never obligated to hire.- Licensed local plumbers
- Free call and referral
- You approve the quote first
Common signs
- Several drains slow at once
- gurgling
- sewage smell
Sewer Line Repair services in Boulder
- Sewer Line RepairRecurring backups, sewer odors, slow fixtures or a damaged sewer line.
- Sewer Camera InspectionVideo inspection to find the cause of drain and sewer problems.
- Trenchless Sewer RepairLining or bursting a sewer pipe with minimal digging.
- Sewer Line ReplacementReplacing a failed sewer line to the street.
Problems sewer line repair fixes
- Several drains slow or backing up together
- Sewage smell in the yard or basement
- Soggy, sunken or unusually green patches over the line
- Roots or breaks found on a camera inspection
Why sewer line repair comes up in Boulder
Old clay laterals crack in expansive soils.
55% of Boulder's homes were built before 1980, when sewer laterals were commonly clay or cast iron. Clay joints let roots in and cast iron corrodes and scales, so a camera inspection is the first step before paying for a repair.
- Typical home built
- 1977
- Homes before 1980
- 55%
- Winter freezes
- Regular hard freezes
How the work is done
- 1Camera inspectionThe plumber locates the defect and measures its depth and distance from the cleanout.
- 2Choose the repairSpot repair, pipe lining, pipe bursting or full replacement, depending on the damage and access.
- 3Permit and locatesUtility locates and, where required, a sewer permit and inspection come before digging.
- 4Repair and verifyA final camera pass or flow test confirms the line is clear.
What affects the price
The plumbing company sets the price after seeing the job; ask for it in writing before work starts.
- Depth and length of the damaged section
- Excavation versus trenchless methods
- Pipe material and condition
- Driveways, trees or landscaping over the line
- Permit and inspection requirements
Plumbing work we connect Boulder homeowners with
Sewer Line Repair in Boulder: questions
Can my Boulder sewer service line be lined instead of dug up?
Often, yes. Boulder notes local plumbers can use the same pipe-lining technology the city uses on its mains, which can cost much less than replacement. The service line, including the main connection, is the homeowner's responsibility.
Are Boulder's older sewer pipes made of clay?
Many are. Boulder says about 70% of its sanitary sewers were built with clay pipe after World War II and are reaching end of life. Homes of that era often have clay service lines worth camera-inspecting before they fail.
Why is sewer line repair a common call in Boulder?
Old clay laterals crack in expansive soils.
How old are most homes in Boulder?
The median home in Boulder was built in 1977, and 55% of homes were built before 1980 (U.S. Census Bureau, American Community Survey).
Can recurring clogs in Boulder mean a sewer line problem?
Yes. When several drains back up together, the main sewer line is the likely cause, and a camera inspection shows whether it's roots, a sag or a break. In Boulder: old clay laterals crack in expansive soils.
Who supplies water in Boulder?
City of Boulder. Past the meter, plumbing is the owner's.
Sewer Line Repair near Boulder
- Sewer Line Repair in Westminster, COSewer Line Repair in Westminster, CO: older laterals in 1950s–60s neighborhoods crack in expansive clay.
- Sewer Line Repair in Fort Collins, COSewer Line Repair in Fort Collins, CO: shifting soils and roots crack older clay laterals near Old Town.
- Sewer Line Repair in Thornton, COSewer Line Repair in Thornton, CO: older laterals in 1950s–60s Thornton crack in shifting clay.
More plumbing services in Boulder
- Water Heater Replacement in Boulder, COWater Heater Replacement in Boulder, CO: tanks in older homes and rentals reach end of life.
- Frozen Pipe Repair in Boulder, COFrozen Pipe Repair in Boulder, CO: front Range cold snaps freeze pipes in older homes.
- Emergency Plumbing in Boulder, COPlumbing emergency in Boulder, CO? Who to call (City of Boulder or a plumber), what to shut off first, and the emergencies most likely in Boulder homes.
- All plumbing services in BoulderEvery plumbing service available to Boulder homes.
Local rules and details for Boulder
Boulder facts behind this page
- The median home in Boulder was built in 1977. [1]
- About 55% of Boulder's housing units were built before 1980, the era of galvanized steel supply pipe, cast iron drains and clay sewer laterals. [1]
- The City of Boulder says homeowners are responsible for their sewer services from the home all the way to and including the connection to the city main in the street. The city's Sanitary Sewer Rehabilitation Program only rehabilitates city main sewers and does not address home sewer service issues, though local plumbing companies can use the same lining technology, which can be significantly cheaper than replacing a sewer service. [2]
- About 70% of Boulder's sanitary sewers were built after World War II using clay pipe, much of it between the 1940s and 1960s, and these pipes are reaching the end of their useful life as shifting soils and heavy traffic cause cracks. The city inspects its system with a robotic camera and installs liners, which cost about a quarter of excavation and take about half a day. [2]
Boulder rules and programs for sewer line repair
- The City of Boulder says homeowners are responsible for their sewer services from the home all the way to and including the connection to the city main in the street. The city's Sanitary Sewer Rehabilitation Program only rehabilitates city main sewers and does not address home sewer service issues, though local plumbing companies can use the same lining technology, which can be significantly cheaper than replacing a sewer service. [2]
- About 70% of Boulder's sanitary sewers were built after World War II using clay pipe, much of it between the 1940s and 1960s, and these pipes are reaching the end of their useful life as shifting soils and heavy traffic cause cracks. The city inspects its system with a robotic camera and installs liners, which cost about a quarter of excavation and take about half a day. [2]
Other common plumbing calls in Boulder
- Frozen Pipe Repair: front Range cold snaps freeze pipes in older homes.
- Water Heater Replacement: tanks in older homes and rentals reach end of life.
Sources (2)
- U.S. Census Bureau, ACS 2024 1-year (B25035) · checked 2026-10-01
- City of Boulder, Sanitary Sewer Rehabilitation Program · checked 2026-10-20