Sewer Line Repair & Replacement in King County
Sewer line problems are serious—they can cause backups, foul odors, and even health hazards. Lighthouse Plumbing provides expert sewer line repair and replacement services throughout Issaquah, Fall City, Snoqualmie, and King County.
Using advanced camera inspection and trenchless technology, we diagnose issues accurately and fix them with minimal disruption to your property. Don't ignore the warning signs of a failing sewer line.
Our Sewer Line Services
Sewer Camera Inspection
We use HD camera technology to see inside your sewer line and identify the exact problem—no guesswork.
Sewer Line Repair
From cracks to root intrusion, we repair sewer line damage and restore proper flow.
Sewer Line Replacement
When repairs aren't enough, we replace failing sewer lines using traditional or trenchless methods.
Trenchless Sewer Repair
Minimize yard damage with trenchless pipe lining and pipe bursting technology.
Root Removal
Tree roots invading your sewer? We clear roots and can install root barriers to prevent future intrusion.
Sewer Line Cleaning
Hydro jetting clears buildup, grease, and debris to restore full flow to your sewer line.
Warning Signs of Sewer Line Problems
Watch for these indicators that your sewer line needs attention:
- ✓Multiple slow drains – If several drains are slow, the main line may be blocked
- ✓Sewage backups – Water or waste backing up into your home
- ✓Gurgling sounds – Toilets or drains making gurgling noises
- ✓Foul odors – Sewer smell in your yard or home
- ✓Lush patches in yard – Unusually green grass over sewer lines
- ✓Soggy areas – Wet spots in your yard that won't dry
- ✓Foundation cracks – Severe sewer leaks can affect your foundation
- ✓Pest problems – Rodents and insects attracted to sewer breaks
Our Diagnostic Process
Video Camera Inspection
We insert a high-definition camera into your sewer line to see exactly what's happening inside—cracks, roots, blockages, and pipe condition.
Location Marking
Once we identify the problem, we use locating equipment to mark exactly where the issue is in your yard.
Repair Recommendation
Based on our findings, we recommend the most effective and cost-efficient solution—whether that's cleaning, repair, or replacement.
Trenchless Sewer Solutions
We offer trenchless technology that repairs or replaces sewer lines without destroying your yard:
Pipe Lining (CIPP)
A resin-coated liner is inserted into your existing pipe and cured in place, creating a new pipe within the old one. Ideal for:
- • Cracked or deteriorating pipes
- • Root-damaged lines
- • Pipes with minor bellies or offsets
Pipe Bursting
A new pipe is pulled through the old one, breaking apart the damaged pipe as it goes. Best for:
- • Severely damaged lines
- • Collapsed sections
- • Upgrading to larger diameter pipe
Suspect a Sewer Line Problem?
Don't wait—contact Lighthouse Plumbing for a professional camera inspection and diagnosis.
Frequently Asked Questions
How do I know if my sewer line is clogged or broken?
A camera inspection is the only way to know for sure. We'll show you exactly what's happening inside your sewer line.
How much does sewer line repair cost?
Costs vary widely based on the problem and repair method. Simple cleaning may be a few hundred dollars; full replacement can be several thousand. We provide exact quotes after inspection.
How long does sewer line replacement take?
Trenchless replacement often takes just 1-2 days. Traditional excavation may take longer depending on the length and depth of the line.
Will you have to dig up my yard?
Not necessarily. Trenchless methods require only small access points. We'll recommend the least invasive option that properly solves your problem.
What causes sewer line damage?
Common causes include tree root intrusion, age-related deterioration, ground shifting, improper installation, and flushing inappropriate items.
How long do sewer lines last?
It depends on the material. Cast iron and clay pipes (common in older homes) last 50-75 years. PVC can last 100+ years. Regular maintenance extends lifespan.