
Sewer Line Repair in Northwest Washington
Camera Diagnosis · Spot Repair · Full Replacement · City Connection. Licensed specialists repairing and replacing damaged sewer lines across Bellingham, Mount Vernon & Anacortes.
Request Service: Use the form below or call 360-685-8098 today!
PROUDLY SERVING BELLINGHAM, MOUNT VERNON, AND ANACORTES FOR 30+ YEARS
A Damaged Sewer Line Won't Heal Itself — It Gets Worse Every Flush
Every time you flush a toilet, run a sink, or take a shower, wastewater flows through your sewer line to the city main or your septic tank. When that pipe cracks, breaks, collapses, separates at a joint, bellies from ground movement, or gets crushed by roots, waste doesn't flow properly. It backs up into your home. It leaks into the surrounding soil. It attracts more roots. It erodes the bedding under the pipe and the damage spreads. And every flush makes it worse.
LaVergne's provides complete sewer line repair including sewer camera inspection and locating, spot repair of cracked or broken sections, full sewer line replacement, root-damaged pipe repair, bellied pipe correction, offset joint repair, cleanout installation, and connection to city main or septic system across Bellingham, Mount Vernon, Anacortes, and all of Whatcom and Skagit Counties.
What to Look for in a Sewer Line Repair Specialist
Sewer line repair involves excavation, pipe work, proper grade and bedding, backfill, compaction, surface restoration, and often permit coordination with the city or county. A company that doesn't camera inspect before digging is guessing at the location and nature of the problem. A company that can't locate the damage precisely digs more trench than necessary, costing you more in excavation and restoration. And a company that doesn't camera verify after repair can't prove the fix actually worked.
Why LaVergne's?
We check every box. Repairing sewer lines since 1951.
- Licensed & Insured (#LAVERPH798NZ)
- 75+ Years of Sewer Work
- Camera, Locator & Excavation
- Spot Repair or Full Replace
- 5 Star Customer Reviews
- Permits & Inspections Handled

Sewer Line Repair Services
Six sewer line repair service areas covering every type of pipe damage from camera diagnosis through completed repair and restoration.
Camera Inspection & Locating
Sewer camera pushed through the line to visually identify the type and location of damage. Electronic locator marks the exact position and depth on the surface so excavation is precise and minimal.
Inspect →Spot Repair
Localized excavation to repair a single cracked, broken, or offset section without replacing the entire line. Damaged section removed, new pipe installed with proper fittings, bedding, and grade. Minimal disruption.
Repair →Full Line Replacement
Complete sewer line replacement from the house to the city main or septic tank. Old pipe excavated and removed, new pipe installed with proper grade, bedding, and backfill. Cleanouts installed at code.
Replace →Root Damage Repair
Pipe joints infiltrated and broken by tree roots excavated and replaced with root-resistant connections. Root barriers recommended where applicable. Camera verified before and after.
Repair →Bellied Pipe Correction
Sections of pipe that have settled and created a low spot trapping waste. The bellied section is excavated, re-graded with proper bedding and compaction, and new pipe installed at correct slope.
Correct →Cleanout Installation
Sewer cleanout access points installed at the house and at the property line for future maintenance access. Required by code on most new and replacement sewer lines. Makes future service faster and cheaper.
Install →Sewer Line Damaged? Recurring Backups?
Camera diagnosis and sewer line repair across Bellingham, Mount Vernon, Anacortes and all surrounding areas.
Types of Sewer Line Damage We Repair
Northwest Washington's clay soils, mature trees, seasonal ground movement, and aging infrastructure create conditions that damage sewer lines. Most homes in the region have sewer lines made of clay, cast iron, Orangeburg, or early PVC — all of which deteriorate over time. Here are the four most common types of damage we diagnose and repair.
We always camera inspect before recommending repair. The camera shows us exactly what's wrong, where it is, and how extensive the damage is — so you get an accurate quote and the right repair, not guesswork.
Cracked & Broken Pipe
Ground movement, freeze cycles, heavy surface loads, and age crack and break sewer pipes. Cracks allow roots in and sewage out. Breaks create blockages and sinkholes. We excavate and replace the damaged section.
Repair →Root Intrusion
Roots enter at pipe joints seeking moisture and nutrients. They grow inside the pipe, cracking it from within and creating chronic blockages. We replace root-damaged sections with root-resistant joints and connections.
Repair →Bellied & Settled Pipe
Sections of pipe that have settled create low spots where waste collects and sits. Snaking and jetting provide temporary relief but the belly traps waste again immediately. We re-grade and replace the settled section.
Correct →Collapsed Pipe
Deteriorated clay, corroded cast iron, crushed Orangeburg, or aged pipe that has fully collapsed and closed off flow. Full excavation and replacement of the collapsed section with modern pipe is the only fix.
Replace →

Why Professional Sewer Line Repair Matters
Your sewer line carries every drop of wastewater your household produces. When it's damaged, sewage leaks into surrounding soil contaminating groundwater, backs up into your home creating health hazards, attracts more root intrusion that accelerates the damage, and erodes the bedding under the pipe causing further settling and collapse. Every flush makes it worse.
Licensed plumbers camera inspect to identify the exact type, location, and extent of damage before touching a shovel. They locate the damage on the surface to minimize excavation. They install new pipe at proper grade with proper bedding and compaction. They camera verify the repair before backfilling. And they handle permits, inspections, and surface restoration.
Camera First
Diagnose before digging
Precise Locate
Minimal excavation
Camera After
Verified before backfill
Sewer Line Repair FAQs
Common sewer line repair questions answered by our licensed specialists serving Whatcom and Skagit Counties.
How much does sewer line repair cost?
Spot repairs typically run $1,500 to $4,000 depending on depth, location, and access. Full sewer line replacement runs $4,000 to $15,000 depending on length, depth, and surface restoration required. We camera inspect first and provide a detailed written quote.
How do I know if my sewer line needs repair?
Recurring backups in the same drain, gurgling sounds from multiple fixtures, sewage odor in the yard, wet spots or sinkholes over the sewer line, or slow drains throughout the house. We camera inspect to see the exact condition and location of damage.
Can you repair just part of the line?
Yes. If camera inspection shows damage limited to one section with the rest of the line in good condition, a spot repair replaces only the damaged section. This costs less and requires less excavation than full line replacement.
How long does sewer line repair take?
Spot repairs typically take 1 day. Full sewer line replacement takes 2 to 4 days depending on length, depth, access, and surface restoration. We provide exact timing with your quote so you can plan accordingly.
Will you tear up my yard?
We minimize excavation by using camera inspection and electronic locating to pinpoint the exact damage location. Spot repairs require a small trench at the damaged section only. We backfill, compact, and restore the surface as part of every repair.
Do I need a permit for sewer line repair?
In most jurisdictions in Whatcom and Skagit Counties, yes. Sewer line repair and replacement typically requires a plumbing permit and sometimes a right-of-way permit if work extends to the city main. We handle all permit applications and inspection scheduling.
What type of pipe do you install?
We install Schedule 40 PVC or SDR 35 PVC for most residential sewer line repairs and replacements. These are the modern standard — durable, smooth interior for excellent flow, resistant to roots, corrosion, and ground movement. Built to last decades.
Should I get a sewer camera inspection before buying a home?
Absolutely. A pre-purchase sewer camera inspection reveals cracks, root intrusion, bellied sections, offset joints, and deterioration that a standard home inspection cannot detect. It can save you thousands in unexpected sewer repairs after closing.
What areas do you serve?
We repair and replace sewer lines across all of Whatcom and Skagit Counties including Bellingham, Mount Vernon, Anacortes, Burlington, Sedro Woolley, Ferndale, Lynden, and surrounding areas.
