Almost every expensive sewer decision starts with the same problem: the pipe is buried, so nobody can see it. That single fact is responsible for a large share of the unnecessary sewer replacements sold in this region every year.
A camera inspection removes the guesswork. A self-levelling HD head travels the full lateral while a locator tracks its position, so at the end you know what is wrong, where it is to within a foot or so, and how deep it sits.
What the camera actually finds
| What you see on screen | What it means |
|---|---|
| Fine white roots at a joint | Root intrusion — cutting clears it, lining ends it |
| Rough orange-brown nodules on the wall | Tuberculation in cast iron — often descalable, not a replacement |
| Standing water that will not drain away | A belly. Cleaning will not fix this; the pipe has sagged |
| A visible step between two pipe sections | Offset joint from ground movement |
| Daylight or soil visible through the wall | Structural failure — the pipe has lost integrity |
| Camera stops and cannot advance | Collapse, or a blockage dense enough to need clearing first |
| Smooth, clear pipe the whole run | Your line is fine. This is a real and common outcome |
That last row matters more than the others. A meaningful proportion of the inspections we run come back clean, and the honest answer is that the customer does not need the work somebody else proposed. We hand over that footage with the same care as any other result.
Before you buy an older home
A standard home inspection does not cover the sewer lateral. It is outside the scope, and buyers routinely assume otherwise.
In Montgomery and Prince George’s County, where a great deal of the housing stock predates 1980, that omission has real consequences. A failed lateral on a 1950s house is a five-figure repair, and it lands on whoever owns the property when it fails — which, weeks after closing, is you.
Booking an inspection during the contingency period costs a few hundred dollars and keeps the finding negotiable. Discovering the same defect after settlement costs the full repair.
Before authorising any repair
If you have been quoted a sewer replacement and have not been shown footage, you have no basis on which to evaluate the quote — and no way to know whether a cheaper repair would have worked.
The most expensive mistake in this trade is replacing a pipe that only needed descaling. Cast iron narrowed by tuberculation looks alarming on camera to an untrained eye, and it is frequently structurally sound underneath. Camera, descale, camera again — if the pipe below is intact, a five-figure job just became a four-figure one.
What you should receive
- The recorded video of the full run, cleanout to main
- A written summary in plain language, not trade shorthand
- Surface marks showing where any defect sits, and at what depth
- Repair options with flat-rate pricing, where anything needs attention
Keep it. A recorded baseline of your line’s condition is useful for insurance, useful at sale, and useful the next time somebody tells you the pipe needs replacing.
When an inspection is worth booking
- You are under contract on a home built before about 1985
- The same line has been cleared more than once in twelve months
- You have been quoted a sewer repair and want independent verification
- There are wet spots, sinkholes or settling along the sewer run
- You want a documented baseline before finishing a basement or landscaping over the line