Full residential and commercial sewer line replacement across Metro Detroit. Clay and cast iron line replacement, open-trench and trenchless options, permits and MISS DIG coordination, and backfill restoration. Wayne, Oakland, and Macomb counties.
Most Metro Detroit sewer failures trace back to original clay or cast iron lines installed between 1920 and 1970. Clay joints offset and root-intrude. Cast iron corrodes and flakes. Both eventually fail and need full replacement rather than patch repair.
Liora Works handles the full scope end to end: assessment, permits, MISS DIG utility locates, excavation, new pipe installation, inspection coordination, backfill, and rough grade restoration. Hardscape and landscape restoration are quoted as separate line items when in scope.
Original clay tile lines from pre-1970 construction, the most common Metro Detroit failure
Corroded cast iron sewer laterals, typically 40+ year old lines showing wall deterioration
Bituminous fiber pipe from 1945-1972, notorious for collapse and deformation under load
Newer-generation pipe that's settled, offset, or cracked due to soil movement or installation issues
Any pipe beyond repair due to structural collapse, heavy root intrusion, or severe offset
Larger-diameter commercial lines for restaurants, multi-unit, and industrial facilities
Walk-through, existing line review, depth assessment, 24-hour quote turnaround
Plumbing and right-of-way permits submitted to BSEED or the suburban municipality
Michigan's statewide one-call utility locate request submitted and confirmed before dig
Open-trench or trenchless replacement with new SDR-35 PVC or HDPE per specification
Inspector coordinated before backfill, final inspection scheduled and passed
Proper backfill with compaction, rough grade restoration, erosion control where required
The right method depends on the condition of the existing line, what's above it, and the total cost including surface restoration. We assess each project and recommend based on the actual conditions on site, not a default preference.
Traditional method. Excavate along the full line length, remove old pipe, install new pipe, backfill. Handles any condition including collapse, severe offset, and heavy root damage. Best when surface restoration is manageable or the yard is already being reworked.
HDPE pipe pulled through the existing line as a bursting head fractures the old pipe outward into surrounding soil. Two access pits, no full-length excavation. Preserves driveway, walkways, mature landscaping, and hardscape. Requires existing line to be structurally intact enough to guide replacement.
Excavate and replace only the damaged section when inspection confirms the remainder of the line is sound. Less common than full replacement because most Metro Detroit failures are systemic rather than isolated, but cost-effective when the issue truly is localized.
Standard residential sewer lateral work from house connection to municipal tap. Most common scope across Metro Detroit's pre-1970 housing stock. Typical line length 40 to 100 feet at 4 to 8 feet depth.
Larger-diameter sewer mains for commercial properties including restaurants, multi-unit residential, office buildings, and light industrial. Coordinated with tenant schedules and facility operations.
Emergency response for actively backing-up or collapsed sewer lines. Priority dispatch, expedited permits where available, and coordinated with plumbers and restoration contractors on active discharge events.
How a Liora Works sewer line replacement runs from first call to permit close-out.
Site walk-through, existing line review, camera inspection if not already completed by a plumber. Quote within 24 hours.
Plumbing and right-of-way permit applications submitted. MISS DIG utility locate requested 72 hours before dig.
Open-trench excavation or trenchless access pits dug. Existing line exposed, depth confirmed, conditions documented.
New pipe installed to specification. Municipal inspector scheduled and passes before backfill begins.
Backfill with proper compaction. Rough grade restored. Final inspection passed. Permit closed out.
Sewer replacement often pairs with additional scope. Demolition of old infrastructure above the line. Water service upgrades during the same excavation. Final restoration by other trades.
Six questions we hear most often from Metro Detroit property owners and general contractors scoping sewer line replacement.
A sewer line camera inspection is the only reliable way to determine replacement versus repair. Repeated backups, slow drains across multiple fixtures, sewage odors in the yard, soggy patches in the lawn, and lush green strips above the line are all symptoms. A camera inspection shows whether the issue is an isolated repair (root intrusion at one joint, a single offset section) or systemic (collapse, multiple failures, deteriorated pipe wall). Most Metro Detroit plumbers offer camera inspection for $200 to $500, and that video then guides the replacement quote.
Residential sewer line replacement in Metro Detroit typically runs $3,500 to $15,000 for open-trench work depending on line length, depth, and access. Average residential replacements fall in the $6,000 to $10,000 range. Trenchless pipe bursting runs $8,000 to $20,000 and often comes out competitive once restoration costs for driveways, walkways, and landscaping are factored into open-trench quotes. Commercial sewer line replacements vary widely by scope and are quoted per project. These ranges cover labor, materials, permits, MISS DIG coordination, backfill, and rough grade restoration.
New residential sewer lines are typically installed using SDR-35 PVC or Schedule 40 PVC, depending on depth and load conditions. SDR-35 is the most common for standard residential depths. Municipal code specifies acceptable materials; most Metro Detroit municipalities accept both. Trenchless pipe bursting uses high-density polyethylene (HDPE) pipe pulled through the existing line as it fractures the old pipe outward. Cast iron replacement within a structure or under a slab uses no-hub cast iron or PVC depending on the municipality and application.
Open-trench sewer replacement requires excavating along the full line length, which typically means removing sections of driveway, sidewalk, or landscaping that sit above the line. Standard scope includes backfill and rough grade restoration. Final restoration of driveways (concrete or asphalt), hardscape, and landscaping is typically a separate line item or handled by a restoration contractor. Trenchless replacement preserves most surface features since only access points need to be excavated. The right method depends on what's above the line, the condition of the existing pipe, and total project cost including restoration.
Responsibility for sewer line replacement typically splits at the property line or at the public main, depending on the municipality. The property owner is responsible for the lateral from the house to the point of connection with the municipal sewer. The city handles the main line and, in many municipalities, the tap into the main. Detroit, Warren, Royal Oak, and most Metro Detroit municipalities require the homeowner to pay for the private lateral even when the failure is in the section near the connection point. Confirm with your local building department before planning work.
Yes, but winter sewer replacement in Metro Detroit costs more and takes longer. Frozen ground requires more equipment time to break through frost layers, especially in the first 18 to 24 inches of depth. Open trenches need to be protected against freezing during work. Emergency replacements for collapsed lines and active sewage backups are handled year-round regardless of season. Scheduled replacements often run better between April and November when soil conditions cooperate, equipment moves faster, and restoration work can proceed immediately rather than waiting until spring.
Send us the address, camera inspection video if you have one, and scope notes. We'll send back a clear itemized quote with permits and inspection handled end to end.