How to ask for a sewer scope before closing
A sewer scope inspection sends a camera down the pipe between the house and the city main, a stretch a standard home inspection doesn't see. It costs about $125 to $350 for most homes. Order one early in your inspection period, ask for the full video, and get repair quotes before your deadline if it finds damage.
What a sewer scope inspection finds
The inspector feeds a camera through a cleanout and records the inside of the line. You're looking at the lateral, the pipe that runs from the house to the public main. It usually belongs to you, not the city, and where your responsibility ends varies by city. One plumbing guide says it can stop at the property line in some places and run about 30 feet or more past it in others.
A scope can find roots coming in through joints, sags called bellies, shifted or separated joints, cracks, collapses, grease and construction debris. It can also reveal a surprise, such as a septic connection where you expected public sewer. It can't see the outside of the pipe, the soil around it, or sections blocked by debris or sharp bends.
Pipe material tells you a lot. The same plumbing guide lists these design lives:
- Orangeburg, used from 1948 to 1972: 30 to 50 years, so most is past failure.
- Vitrified clay, 1900s to 1970s: 50 to 80 years.
- Cast iron, 1920s to 1980s: 75 to 100 years.
- PVC Schedule 40: 100 years.
One inspection guide says a scope is most worth ordering if the home is about 30 to 40 years old or older, has large trees near the line, sat vacant, shows slow drains or gurgling, has foundation cracks or heaved concrete, or has a finished basement a backup would ruin.
Sewer scope cost and repair prices
| Item | About what it costs | What it covers |
|---|---|---|
| Scope added to a home inspection | $100 to $250 | Often a bundled discount |
| Standalone scope from an inspector | $150 to $350 | Video and a written summary |
| Plumber camera inspection | $150 to $500 | May include locating and depth marks |
| Line locating and depth marking | Adds $50 to $150 | Shows where a problem sits |
| No cleanout (toilet pull or roof vent access) | Adds $75 to $200 or more | Extra labor to reach the line |
| Spot repair, 4 to 12 ft section | $1,100 to $2,800 | Fixes one section |
| Lining the full lateral | $4,500 to $12,000 | Trenchless, 30 to 60 ft |
| Pipe bursting, full lateral | $5,500 to $13,500 | Trenchless replacement |
| Trenched replacement | $7,500 to $18,000 or more | Digging up the full line |
These come from one inspection guide and one plumbing company's national estimates, so use them to plan and get local bids. The price depends on depth, length and what's on top of the pipe. Concrete or asphalt restoration can add $800 to $3,500.
Who to hire for a sewer scope inspection
Ask your home inspector first, since many offer it as an add-on. An independent inspector has no repair to sell, so you can trust the finding more. A plumber can usually locate the line and give a repair quote, but get a second opinion on any big job they find.
Book early in your contingency period, so you have time for a repair estimate. Confirm the home has an accessible cleanout, and ask the seller if the line has been cleaned recently.
Questions to ask at your sewer scope inspection
- Will I get the full video, not only a summary?
- Will the findings include distances from the access point?
- Can you mark the location and depth of any problem?
- Will the camera reach the city main? If it can't, what's the next step?
- What pipe material did you see, and did it change along the way?
- Has this line been jetted or cleaned recently?
- Who owns each section of this line, and how do I confirm that with the city?
Red flags in a sewer scope before closing
- No video provided.
- Pressure to replace the whole line from the company that did the scope.
- Findings with no distance markers.
- A scope that stopped short, with no explanation.
- A clean report on a line that was just jetted, which can hide root problems.
- A seller who won't allow the scope or won't say when the line was last cleaned.
How to order a sewer scope before closing
- Decide early
Check the home's age, the trees along the line and the seller's disclosure as soon as you're under contract.
- Book it with your inspection
Ask your inspector or a plumber to scope the main line during your contingency period.
- Find the cleanout
Ask the seller where it is. Homes without an accessible cleanout cost more to scope.
- Get the full record
Keep the video and written findings, including locations and depths for any problem.
- Confirm who owns what
Call the city or sewer district before you negotiate. A repair on the public side may not be your cost.
- Get repair bids
If there's damage, get one or two written quotes from licensed sewer contractors.
- Negotiate through your agent
Use the video and bids to ask for a repair, credit or price change before your deadline. Your contract sets your options.
What homeowners say about a sewer scope inspection
One owner who skipped the scope says it cost them about $50,000. Another thread adds termite inspections in termite areas, and a structural engineer for any cracks the inspector flags. (Reddit)
A cautionary story: an older couple's light use never showed a problem. Soon after the new owners moved in and started showers, laundry and dishes, the root-clogged main backed up and flooded a new wood floor in the foyer. (Reddit)
Who pays for sewer line repairs? More sewer scope answers
Is a sewer scope part of a home inspection?
Usually not. It's normally an add-on, and a standard inspection can't see the line under the ground. Ask your inspector when you book.
How much does a sewer scope cost?
One guide puts a typical single-family scope at about $125 to $350. A plumber's camera inspection can run up to about $500, and homes without a cleanout cost more.
Who pays for sewer line repairs?
Homeowners generally own the lateral, and the city owns the main. Where the line of responsibility falls varies, so confirm it with the city before work begins or you negotiate.
Sources: inspectandtest.net, alertplumber.com
General guidance for U.S. homes, not professional advice. For gas, electrical and structural work, call a licensed pro.