Pipe bursting services: what a scope has to say before it means anything

Searching for a service and receiving a quotation are two different moments, and the gap between them is where most of the trouble on this work lives. Everything happens underground and out of sight, so the document is the product until the job is done. This is what a bursting scope has to name for it to be worth comparing against another one.

The survey it was written from

A scope written from a phone call is a guess with a letterhead. Ask which footage it was written from, at what date, and ask for the recording. A contractor who surveyed the line will have it, with distances on it, and will be able to say at what point along the run each defect sits. One who did not will describe the defect in general terms, and general terms are the tell. This matters more here than on most trades because the evidence disappears the moment the work starts: once the old pipe has been broken outward into the soil, nobody can go back and check what condition it was in.

Which of the three jobs is being sold

Clearing a blockage, repairing a section and replacing a run are three different undertakings that share a vocabulary, and the reason the word repair is misleading on this method is set out in its own article. A scope should say plainly which one it covers, and over what length.

Both pit positions, and every branch between them

Not “two access pits” but where each one goes, what surface it opens and how deep it is expected to be. Pit positions are the part of this job most likely to surprise an owner, and they are knowable in advance from the survey rather than discovered on the morning. If one of them falls on a neighbour’s ground or in the public right of way, that is a conversation and a permission to start now, not a question to raise when the rig is already on the street.

Branches are counted, positioned and each given its own line for excavation and remaking. A scope that does not mention branches has either checked and found none, which the footage will confirm, or has not looked.

Material, diameter and jointing of the new pipe

Written as a specification. If the diameter is being increased, the scope should say what the line discharges into and why the increase is useful there, because upsizing into a constrained main moves a restriction rather than removing it.

Reinstatement, to a named standard

Who backfills, who compacts, who makes good the surface, and to whose standard. Where a pit falls in the public right of way, the highway authority sets that standard and the permit sets the timetable. Included or excluded, it has to be on the page.

What verification you receive

A post-work camera run with distances, handed over as a file you keep rather than shown once on a screen at the back of a van. This is the only evidence an owner ever gets of work they cannot inspect, and a scope that does not offer it is asking to be taken on trust for the one part of the job trust cannot cover. The same recording is what a future buyer, a future insurer or a future contractor will want, and it costs nothing to keep.

What the warranty actually covers

A warranty on this work can mean the new pipe, the workmanship, the branch connections, the reinstated surface, or some subset of those. Read which. A long warranty on the pipe material alone is a manufacturer’s document and says nothing about the installation, and the installation is what an owner is buying. Ask what is covered, by whom, for how long, and what voids it.

Who is doing the work, and what you can check yourself

Sanitary drainage is licensed work in most jurisdictions, the licence is held by a person or a business rather than by a brand, and it is verifiable with the issuing body before anyone digs. Insurance is verifiable the same way, from the insurer rather than from a certificate handed across a table. What to check, and in what order, is set out in the article on choosing a contractor and on the scope page.