Three Lining Bids Only Compare When You Ask For Specs

Three bids for the same forty feet of failing clay lateral landed at $6,800, $11,400 and $18,000. The buyer works from a home office in an inner ring St. Louis suburb and reads a house repair the way he reads a vendor contract at work. Every line gets checked. What arrived instead were three sheets with almost nothing in common: one named a liner material, one promised a warranty term, the third gave a price and a start date. Anyone pricing sewer lining st louis mo is usually not comparing three quotes for one job, but three different products wearing a single label. Ask all three bidders the same short list of spec questions, starting with the camera footage, and the numbers finally line up against each other.

Bids Differ Because The Specs Stay Hidden

A spread from $6,800 to $18,000 is rarely one contractor being greedy. It is three different scopes: length of pipe, number of branch connections, whether the old line gets jetted clean first, and whether anybody actually looked inside it. Compare enough quotes and what usually turns up is a bidder who measured from the cleanout, guessed the rest and priced the guess. Recorded camera footage ends that argument, because it carries distance markers and shows the exact point where the clay gives way. A bid written after an inspection has a length, a diameter and a defect list in it. A bid written from the driveway has a number.

Liner Material And Thickness Decide Lifespan

Cured in place pipe, which is what a contractor means when he says lining, is a resin soaked sleeve pulled into the damaged lateral and inflated with a bladder until it hardens against the old pipe wall. What varies between bids is the resin, the thickness of that tube and how it is cured. A liner engineered to hold structure on its own is the kind that carries a stated fifty year service life; a thin sleeve draped over a pipe still doing the structural work is not, however the brochure reads. So ask for the thickness in millimeters and the resin type in writing, on all three bids, before anyone talks about scheduling. The spreadsheet doesn’t lie: two quotes eleven thousand dollars apart on the same forty feet are buying different amounts of material, and the spec line is where that gap shows itself.

Reinstating Branch Connections Is Separate Work

A lateral rarely runs from house to main with nothing joining it along the way. Once the liner cures it seals over every branch connection it passes, and each one has to be reopened with a cutter run back through the new pipe. That is billable labor, and it is the line most often missing from the cheapest bid entirely. Count the connections on the footage, then check whether each bid prices them or parks them as an allowance to be settled later. Worth a short detour here: the same street had its water service lines replaced two summers ago, and the household assumed that project had covered the sewer as well. It had not, because a water service and a sewer lateral are two different pipes with two different budgets. Back to the liner.

Questions That Force A Comparable Bid

Four questions, asked identically of all three bidders, do most of the work. The answers come back in writing, which means they can sit in a column and be read side by side in ten minutes. Vague answers are answers too, and they tend to arrive from the bid that was never priced off an inspection in the first place.

• Can you send the recorded camera inspection with distance markers? A good answer arrives as a video file, not a verbal summary.
• What resin and what liner thickness are you installing, in millimeters? A good answer names both and states the service life that goes with them.
• How many branch connections does this lateral have, and is reinstating each one included in the quoted price? A good answer gives a count taken straight off the footage.
• What does the warranty cover, who honors it, and for how many years? A good answer separates the liner material warranty from the installer’s workmanship warranty.

Buy The Specification Not The Lowest Number

Old pipe is a regional condition rather than bad luck. A May 2026 ranking of the riskiest US cities for plumbing problems from Plumbing & Mechanical put Buffalo’s average home age at 82 years, with 61% of its homes predating 1939, which the magazine tied to severe plumbing infrastructure trouble for anyone moving in. Plenty of inner ring St. Louis housing dates from that same stretch of construction, which is why clay and Orangeburg laterals keep coming up in conversation here at all. So the question on the table was never which contractor is cheapest this month. It is which of the three bids buys a pipe that outlasts the mortgage. Read the specification first and the price of sewer lining st louis mo work stops looking arbitrary.