Sewer Camera Inspection: What It Shows and What It Costs
Every sewer decision worth more than a few hundred dollars in San Jose should be made from a picture of the inside of the pipe. The camera is not a sales gimmick, though it gets used as one. It is the only tool that turns "the drain is slow" into "there's an offset clay joint at 31 feet, four and a half feet down, under the edge of the driveway." Here's how the inspection works, what the footage shows, and how to tell an honest one from a performance.
The equipment
A waterproof color camera head about an inch and a half across, on a stiff push rod wound on a reel with a distance counter. The head self-levels so the picture stays upright, has its own lights, and carries a small radio transmitter. A handheld locator on the surface finds the transmitter and reads its depth. A recorder captures the video with the footage counter on screen.
The camera goes in through the cleanout — a capped pipe near the foundation on most 1950s and later houses. On older Naglee Park or Rose Garden homes without one, the choices are a roof vent or pulling a toilet, both of which take longer and cost more, which is why adding a cleanout is often the first recommendation.
What the camera shows, feature by feature
Pipe material. Clay shows as a matte, slightly rough wall with a joint every two or three feet. Cast iron is dark, often crusted with scale. Orangeburg looks like black cardboard, because it is. ABS and PVC are smooth and uniform. Knowing the material is half the diagnosis.
Joints. On clay, every joint gets a look. A good one is a smooth ring. An offset one shows a step — the downstream section sitting higher or lower — and the camera sometimes bumps over it. A separated one shows soil or roots in the gap.
Roots. Fine hairs at a joint, or a mat that fills the pipe. The camera pushing through a root mass looks like driving through a car wash. A careful inspector notes which joints have them; three or more usually means the conversation is about lining rather than cutting.
Bellies. The camera goes underwater. If standing water covers the lens for several feet of pipe and then clears, that's a sag holding water, and the footage counter tells you how long it is.
Cast iron rot. Scale on the walls and, in a line with channel rot, a dark stripe along the bottom where the wall has gone thin or through. Sometimes you can see soil through it.
Breaks and collapses. A crack running along the pipe, a section crushed flat, or a wall of soil where the pipe should continue. The camera stops and the counter tells you where.
The tap at the main. The end of your lateral where it enters the city main. The inspector looks for a clean connection, a protruding tap, or a break at the joint — all common on old mains that have been relined by the city.
Locating
When the camera reaches a problem, the operator stops, walks the locator over the yard until it finds the head, and paints the spot with the depth. That paint mark is what lets a contractor price a spot repair as one pit rather than a trench looking for something. It's also what tells you the problem is under the lawn (cheap) versus under the driveway (less cheap) versus under the sidewalk (usually a permit — check with the City of San Jose).
Sewer scope inspection cost
A sewer scope — the same thing as a camera inspection — runs $250–$500 here. Low end: accessible cleanout, line flowing. High end: a line that has to be cleared first so the camera can see, or a house with no cleanout. Ask whether the camera fee is credited if you hire the same contractor. The camera inspection page has the details.
What pushes the price up
- No cleanout. Going in through a roof vent means ladder work and a longer rod run. Pulling a toilet means resetting it afterward.
- A blocked line. The camera can't see through standing sewage. The line is cleared first, by cable or jetter, and that's billed as its own step.
- Length. A 130-foot lateral in Saratoga takes longer than a 45-foot one in Cambrian, and may need a second setup.
- Heavy scale or roots. Cast iron crusted with rust, or clay packed with roots, may need cleaning before the wall is visible at all.
- Timing. An after-hours visit during an active backup usually costs more than a scheduled weekday one.
A sewer scope when you're buying
On a purchase, the scope is usually ordered by the buyer during the inspection contingency. A general home inspection looks at fixtures and visible plumbing; it doesn't look inside the lateral. Ask the operator to run the full length to the main, not just the first stretch under the house, and to give you the recording directly. If the footage turns up roots at several joints or a broken section, get a written price for the fix before the contingency ends. That number is what turns a vague worry into a concrete item in the negotiation.
What a good report looks like
A useful write-up is short and specific. It names the pipe material and any changes in material along the run. It lists each problem by distance from the access point, with the depth where it was located. It says what the fix is for each one, with a price or a range. And it comes with the full video, not a few still images. A report that just says "line in poor condition, recommend replacement" is a sales sheet, not an inspection.
What you should demand
- The recording, in a format you can send to someone else, with the distance counter visible.
- A written note of pipe material, total length, the location and depth of each problem.
- The contractor's recommendation with a price for each option that applies — not one option.
- Time to think. The pipe was like this last month; it'll be like this next week.
How to tell a sales inspection from a real one
A real inspection shows you the whole run, cleanout to main, and lingers on the problems. A sales inspection shows you a blurry frame of grease or a root hair, uses the word collapse, and produces a replacement quote before the rod is back on the reel. If the footage shows an offset joint, a belly or a break, any second contractor will see the same thing tomorrow. If it shows nothing you can identify, get that second camera before spending five figures. The broken-line signs post is a useful companion: it tells you what symptoms should make an inspection worth booking in the first place.
When to book one
Repeated backups, a slow drain that's getting slower, anything built before 1985 that you're about to buy, and after any earthquake you felt. On a purchase, do it during the contingency period. A $300 inspection against a $20,000 lateral is the easiest arithmetic in the transaction.
Common questions
Is a sewer scope the same as a camera inspection?
Yes. Sewer scope is the term home inspectors and real estate agents often use; plumbers and sewer contractors tend to say camera inspection. Either way it's a camera pushed through the line, with a recording and a written note of what it found.
Does a sewer camera inspection cost more for an older house?
Often a little, because older houses are more likely to lack a cleanout and to have lines that need clearing first. The inspection itself is similar; the extra time is in getting access and getting a clear picture.
How long is the footage useful?
For planning a repair, a recording from the last few months is fine. For a home sale, buyers usually want one from the current transaction. For tracking roots, keep every yearly recording so you can compare them.
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