A sewer scope finds seven categories of defect, and each one has a different repair cost, a different urgency, and a different look on camera. The dictionary below shows what every defect actually is, why it fails, what it looks like on the camera feed, and what the repair will cost. Sourced.
Each card below covers what the defect is, why it fails, what it looks like on the camera feed, and what the repair will run. Repair cost ranges are sourced. Indianapolis-specific cost numbers live in our Indy defect prevalence guide.
Every reputable sewer scope deliverable includes a video file plus a written report. The report has three sections every buyer should learn to read:
1. The page-1 summary. One paragraph that translates the technical findings into deal-language. "Lateral material is cast iron from house to street with moderate scale at 22 ft and 38 ft. Recommend descaling. No structural defects identified." This is the line the buyer's agent reads first.
2. The video capture. Photos pulled from the video at each finding, with depth and distance marked. Stills let a plumber writing a repair quote know exactly where to look. If the report has no video capture, the report is incomplete.
3. The footage link. A shareable video file (typically MP4) the buyer's plumber watches before bidding the fix. Plumbers who bid blind off a report alone tend to overbid. Plumbers who watch the footage bid closer to reality.
The defect taxonomy above is the language a good report uses. If the report says "found pipe deterioration at 31 ft" without specifying Orangeburg vs. cast iron scale vs. crack, the report is undersourced. A specialist report names the defect.
The buyer's option period exists for exactly this purpose. A scope finding triggers one of three negotiation paths:
Remedy 1: Seller repairs before closing. Cleanest for the buyer. The seller's plumber bids the fix, the work happens before the final walkthrough, and the buyer closes on a known-good lateral. Common for major defects (Orangeburg, severe offset, city-tap separation) where the lender or buyer would not accept the property as-is.
Remedy 2: Buyer accepts a closing credit. Seller drops the price by the estimated repair amount and the buyer handles the work post-closing. Common for moderate defects (cast iron scale, single root intrusion, hairline cracks) where the buyer wants to control vendor selection and timing.
Remedy 3: Buyer accepts the property as-is. Buyer knew about the defect, factored it into the price, and proceeds. Common for minor findings (light scale, a single hairline crack flagged for re-scoping in 5 years) that do not justify renegotiation.
The remedy is a function of the defect, the lender's policy, and the buyer's tolerance for post-closing work. The sewer scope report does not pick the remedy; it just hands the buyer's agent the data needed to negotiate.
The questions buyers ask Google about specific sewer-scope findings.
On camera, Orangeburg appears rough, corrugated, and dark brown to black. It is often visibly deformed, oval-shaped, or partially collapsed because the bituminized fiber softens under soil pressure. Most Orangeburg in service today is well past its 50-year useful life. If your scope shows Orangeburg, plan on full lateral replacement.
Source: Structure Tech · InspectAPediaNo. Orangeburg pipe is made of wood pulp sealed with liquefied coal tar pitch. It does not contain asbestos. The structural failure mode is soft-material deformation under soil pressure, not fiber release.
Source: WikipediaCast iron sewer mains last 50 to 100 years with deterioration beginning after about 25 years. Soil acidity accelerates corrosion. Most cast iron mains installed before 1980 are now mid-life and almost certainly scaled. Descaling restores diameter and can extend useful life decades.
Source: Balkan Plumbing · Parker and SonsRoot intrusion is the single most common cause of sewer blockages, responsible for more than 50% of all blockages. A single root intrusion can be cleared with hydro-jetting and mechanical root cutting for $300 to $700. Recurring intrusions need trenchless lining for an amount that varies by plumber.
Source: ARS Rescue RooterBellies are caused by soil settling, poor compaction at install, seasonal saturation, or freeze-thaw cycles. The pipe sags below grade and waste pools at the low point. Indianapolis-area clay soils plus freeze-thaw make bellies common in older lateral installs.
Source: A.S. PlumbingNot immediately. A hairline crack with no visible water intrusion and no associated defect typically does not require emergency repair. Plan to re-scope the line in 3 to 5 years. If the crack widens or shows water infiltration on the next scope, CIPP trenchless lining is the standard remedy.
Source: Harts ServicesThe definitive pillar: how the camera works, what it finds, how it differs from a home inspection.
National range, Indianapolis specifics, bundled-vs-standalone pricing.
Truth and lender overlays. FHA doesn't require a scope on city sewer.
Indianapolis-specific defect prevalence and local repair cost data? Indy defect prevalence guide →