What Will a Sewer Scope Inspection Reveal?

Written by Steven Shipler, Texas Licensed Master Plumber, Responsible Master Plumber, Texas License #45825.

A sewer scope inspection can reveal hidden sewer line problems that are impossible to see from the surface. The home may look clean, the toilets may flush, and the yard may look normal, but the underground sewer line may still have defects that could lead to backups, sewage overflows, expensive repairs, or failed real estate negotiations.

The Sewer Inspection Company uses professional sewer camera equipment to inspect the inside of the sewer line and document what is actually happening underground. Every inspection includes a Certified Master Plumber Report from a Licensed Texas Master Plumber and a narrated YouTube video.

1. Blocked Pipes

Blocked pipes are one of the most common findings during a sewer scope inspection. Debris, grease, wipes, sludge, construction material, or foreign objects can restrict the flow of wastewater through the line.

If left unresolved, a blockage can lead to slow drains, recurring backups, sewage odors, overflowing cleanouts, or sewage entering tubs, showers, and floor drains.

2. Tree Root Intrusion

Tree roots are aggressive. They search for moisture and can enter sewer pipes through cracks, joints, offsets, and weak pipe connections. Once roots enter the line, they can grow, catch debris, restrict flow, and eventually cause damage.

I have seen homes where the buyer thought the sewer line was fine because everything drained during the showing. Then the camera showed roots inside the pipe. That is the kind of hidden problem you want to know about before closing.

3. Outdated Pipes

Older homes may have clay, cast iron, Orangeburg, or early plastic sewer piping. These materials can deteriorate, separate, crack, scale, sag, or fail over time.

Cast iron sewer lines may show scaling, bottom rot, corrosion, cracking, or rough interior surfaces that catch debris. Clay pipes may separate at joints or allow root intrusion. Older plastic pipe may have poor slope, settlement, or improper installation issues.

4. Incorrect Fittings and Faulty Installation

A sewer scope inspection may reveal incorrect fittings, poor transitions, misaligned pipe, bad slope, improper repairs, or faulty installation. These issues can disrupt wastewater flow and lead to leaks, corrosion, structural damage, and repeated backups.

This is especially important in homes that have been remodeled, flipped, repaired quickly, or worked on without proper plumbing supervision.

5. Sewer Bellies and Standing Water

A sewer belly is a low section of pipe that holds water. Wastewater should move by gravity, so standing water can indicate poor slope, settlement, soil movement, foundation movement, or a sagging pipe.

Not every small amount of water means the line must be replaced, but significant standing water deserves attention because it can collect solids, grease, paper, and debris.

6. Cracks, Breaks, Separations, and Offsets

Sewer scope inspections can reveal structural defects including cracked pipe, broken sections, separated joints, and offsets. These defects can allow soil, roots, or water to enter the line and can eventually lead to collapse or repeated sewer backups.

Location matters. A small defect in the yard may be a different repair conversation than a defect under a slab, driveway, garage floor, or finished interior space.

3 City References

• Dallas, TX: Older homes, mature trees, long sewer runs, and cast iron systems make sewer scope inspections important before closing.
• Plano, TX: Mature neighborhoods, foundation movement, and older sewer laterals can create hidden underground sewer concerns.
• Richardson, TX: Aging cast iron systems, root intrusion, sewer bellies, and under-slab drain issues are common sewer inspection findings.

DFW Service Area Map

Tools and Equipment Used

1. RIDGID SeeSnake Sewer Camera: Used to visually inspect and record the inside of the sewer line.
2. RIDGID SeekTech Locator: Used to help locate the camera head and identify approximate underground defect locations when conditions allow.
3. Line Transmitter and Locating Equipment: Used to support sewer path tracing, cleanout evaluation, and repair planning.

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Helpful Internal Links

• The Ultimate Guide to Sewer Inspections Before Buying a Home
• What Can a Sewer Camera Inspection Find?
• Sewer Inspection Checklist for Home Buyers
• Real Home Buyer Success Stories
• Testimonials
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