Sewer camera inspection — the cheapest information you will ever buy

A sewer camera inspection costs a few hundred dollars and routinely changes a five-figure decision. It is the highest-leverage plumbing spend available to a Colorado homeowner, and it is the one most people skip.

What you are buying is not a repair. It is evidence: what is wrong with the pipe, where along the run it is, how deep it sits, and therefore which repairs are possible and what they should cost.

Why the camera comes before everything else

Because the symptoms of a sewer problem are almost entirely non-specific. Slow drains, gurgling, a backup at the lowest fixture: these are produced equally by grease, by roots, by a cracked section, by a belly holding water, by heavy scale in cast iron and by a full collapse.

The other reason is the recurring blockage. If a line is cleared and blocks again on a predictable interval — spring and autumn, or every eight months like clockwork — that regularity is diagnostic.

And a camera survey protects you from the opposite error too. It rules things out. A homeowner told they need a full replacement, whose footage shows one cracked section in eighty feet of sound clay, has just saved the cost of seventy-something feet of pipe.

How the survey is actually done

A self-levelling camera head on a semi-rigid push cable is fed into the lateral, normally through an exterior cleanout, sometimes through a basement cleanout or a pulled toilet if no cleanout exists.

The head carries its own lighting and, on any professional rig, a sonde — a transmitter that a surface locator can pick up.

One thing to know in advance: a line full of standing water or packed with roots and grease cannot be inspected usefully. This is why a survey is often paired with cabling or hydro jetting first, and why an inspection quoted with no cleaning allowance sometimes turns into a second visit.

Reading the footage without being a plumber

You do not need to interpret it like a technician, but you should be able to follow the narration and ask the right question at each finding. There are roughly six things a survey turns up on Colorado laterals.

Root intrusion. Fine hair-like masses or thick ropes entering at a joint. The question to ask: is the surrounding pipe otherwise sound? If yes, lining that section stops it permanently. If no, this is a bigger conversation.

Cracks and fractures. Longitudinal lines along the pipe wall, or circumferential breaks. Ask how many, and how far apart. One is a spot repair; six spread over the run is a replacement discussion.

Offsets. A step at a joint where one section has shifted relative to the next — the classic signature of expansive clay soil moving seasonally. Minor offsets can be lined. Severe ones cannot.

Bellies and sags. The camera enters standing water mid-run and the picture goes brown. This is a section that has lost its fall and now holds water and solids. It is the most consequential finding on this list, because no trenchless method fixes it — grade correction requires digging.

Scale and buildup. Heavy internal deposits, typical of aging cast iron, narrowing the bore. Often a jetting job rather than a repair, though badly scaled iron eventually needs replacing.

Material identification. Clay shows regular bell joints every few feet. Cast iron shows a dark, rough, scaled wall. Orangeburg shows an oval, blistered, delaminating surface — and if the camera finds Orangeburg, that changes the whole plan.

A survey that produces a verdict but no footage has sold you an opinion. You paid for evidence.

Locating and depth — the part that costs money

This is where a survey earns its keep and where cheap inspections quietly fall short. Knowing there is a break somewhere in your lateral is nearly useless. Knowing there is a break fifty-two feet from the cleanout, seven feet deep, under the north edge of the driveway, is a costed excavation.

The sonde in the camera head is parked at the defect and a surface locator finds it, giving a position that gets marked with paint or a flag and a depth that gets written next to it. Those two numbers drive everything: whether trenchless is viable, how much shoring a trench needs, what surface has to come up, whether the work crosses into the public right of way, and how much of the quote is restoration.

So when comparing inspections, ask directly: does this include locating and depth marking at any defect found, and do I receive the recording? An inspection without those is a look, not a survey.

Before you buy a Colorado house

A standard home inspection does not include the sewer lateral. It is not an oversight or a cost-cutting measure — it needs different equipment and different credentials, and it is almost always a separate engagement that the buyer has to request.

On any Colorado property built before roughly 1980, request it. The reasoning is specific to this state: the older housing stock still carries clay, cast iron and Orangeburg laterals; expansive bentonite clay soils across the Front Range work those joints apart every season; and mature trees in established neighbourhoods spend their lives hunting for the wettest thing on the lot, which is a leaking sewer pipe.

The arithmetic is uncomfortable in the seller's favour if you skip it. A few hundred dollars either buys peace of mind or buys a documented five-figure negotiating position during inspection objections. Sellers of older homes are increasingly commissioning their own survey before listing for exactly this reason — if you are handed one, ask when it was recorded and by whom, and consider whether you want your own.

What a camera cannot tell you

Worth knowing so you do not over-read the footage. A camera shows the inside surface of the pipe. It does not show the condition of the pipe wall from outside, the soil around it, or a void underneath it. It cannot measure how much longer a marginal pipe will last.

It cannot see through standing water, which is why bellies get reported as bellies rather than as detailed inspections of what is inside them. It cannot reliably pass a severe offset or a collapse, so the run beyond an obstruction may be unsurveyed — and a report should say so explicitly rather than implying the whole lateral was seen.

And it cannot see the pipe under a building slab unless there is access. For leaks inside the building envelope, leak detection uses different tools entirely.

• Recording provided to you, not just shown on a screen
• Distance from access point noted at every defect
• Surface locate and depth marked at anything needing excavation
• Report states how far the camera reached and what was not seen
• Pipe material identified along the run

What it costs, and the conflict to watch for

We cannot quote on behalf of the independent contractors we refer to. In broad terms a straightforward residential lateral survey is a few hundred dollars, more if cleaning is needed first to make the line visible, more again for a long run or difficult access with no cleanout.

The thing worth naming is the incentive. An inspection performed free by the company hoping to sell you the repair is not neutral evidence, and a survey where the footage stays with the contractor is worth less than one where it leaves with you. Neither of those makes the finding wrong — plenty of no-charge inspections are entirely honest — but on a job heading toward full replacement, paying an independent party for the survey and then shopping that footage is money well spent.

Once you have the footage, sewer line repair sets out what each finding implies, and trenchless repair covers which defects lining and bursting can and cannot address.