Stop water use where possible
Limit water use in affected areas to reduce backups while the line is inspected.
Commercial sewer line damaged or repeatedly backing up?
Repeated backups across a building usually point to the main sewer line. Camera inspection shows breaks, roots or sags. Stop water use where backing up and call 833-877-1717. RepairNowUSA connects the request. An independent provider does the work.
Am I in the right place?Yes for repeated building-wide backups, sewage odors, or inspection findings.
Is this urgent?Urgent if sewage is entering occupied areas.
What do I do next?Stop water use and call 833-877-1717.
Residential sewer: sewer line repair.
RepairNowUSA editorial review · Last substantively reviewed October 14, 2026 · Review standards
What to do now
Protect occupants
Close restrooms or areas with sewage. Keep staff and customers away from contaminated water.
Plan access
Know where cleanouts are and whether work may affect parking, driveways or tenants.
Excavation and confined spaces
Sewer work may involve excavation, traffic control, permits and confined spaces. Keep staff away from open trenches and manholes.
Common situations
Repeated building-wide backups
Backups on multiple floors or fixtures usually point to the building main.
Grease-related blockages
Restaurants and food service lines clog with grease, especially if grease interceptors are not maintained. See commercial drain cleaning.
Root intrusion and breaks
Roots and ground movement crack and displace older lines.
Sags and collapses
Settled or collapsed sections hold waste and need repair or replacement.
What to have ready when you call
- Property ZIP code and building type
- Which areas and fixtures are affected
- Whether sewage is backing up now
- Known cleanout locations and site plans
- Operating impact and tenants affected
- Who can authorize work and any vendor requirements, such as a COI
How commercial sewer repair usually works
- Clear and inspect. The line is cleared and inspected with a camera to find the cause.
- Plan the repair. Options include spot repair, lining or replacement, with permits and traffic control as needed.
- Schedule around operations. Work may be phased or done after hours to limit disruption.
- Restore and verify. The line is tested and a camera confirms the repair.
Sewer work can involve excavation, confined spaces and work in the street. These require trained crews, permits and, for digging, a call to 811 first.
What happens when you call RepairNowUSA
- Describe what is happening in plain words and give the property ZIP code. You do not need to know which trade to ask for.
- RepairNowUSA checks for a participating independent provider who handles commercial sewer repair in that area.
- If one is available, you are connected. The provider confirms timing, access, scope and price with you before any work.
- The provider, not RepairNowUSA, diagnoses and performs the repair.
RepairNowUSA is a referral and connection service. Provider availability and response times vary by location, time and demand, and are not guaranteed. Before you approve work, ask what was found, the price, the timing and what is not included.
Call 833-877-1717Commercial sewer line damaged or repeatedly backing up questions
Can commercial sewer lines be repaired without digging?
Often, with trenchless lining or bursting. Some conditions still need excavation.
Who is responsible for the sewer line?
Responsibility usually depends on where the problem is and local rules. The property owner is often responsible from the building to the city connection.
Can we stay open during sewer repair?
Often, with phased work and temporary measures. Some repairs require closing restrooms or areas briefly.
How do we prevent grease blockages?
Regular grease interceptor maintenance and scheduled line cleaning. Many local sewer authorities set grease trap rules.
Can I call at night or on a weekend?
Yes. You can call 833-877-1717 at any time, including nights, weekends and holidays. Whether an independent provider can come out right away depends on your ZIP code, the time and provider capacity, so availability is not guaranteed.
Authoritative references
These public sources give general safety context. They do not replace an on-site evaluation, and RepairNowUSA does not perform the work.