Step 1 · Threshold
Above or below, established in writing.
Four trades, with the demolition regime settled before any price.
A demolition is priced by what leaves the site, not by what gets knocked down. Rubble carrying proper traceability is accepted as low-risk material and becomes certified aggregate; the identical rubble without it is high-risk waste at a different price, or is turned away. Since the follow-up plan has to exist before a permit application, this is the part of a project that cannot be fixed later, and it is settled before we quote rather than after.
Above or below, established in writing.
Asbestos identified before anything starts.
Streams separated in the right order.
Obtained, so the rubble is accepted.
Read properly, with questions asked early.
Realistic, with the dependencies named.
With changes recorded as they arise.
Snags listed, not quietly left.
On a project needing a permit, the architect's involvement is required by law and the architect supervises the execution, which is why that role cannot sit with us. We would rather say so first than be asked for an all-in package that nobody may lawfully supply. What we do is build what has been designed, raise the problems the drawings did not anticipate, and put the answers in writing before carrying on.
Opening up an existing wall is the point at which a renovation discovers what it actually is. Lintels that were never there, a chimney doing structural work nobody expected, a wall that turns out to carry something. We price the opening up separately from the work that follows, because a fixed price covering unseen structure is either padded or about to become a dispute.
Priced on its own, before the rest.
What is really carrying what.
The work, and the revised price.
Supported, then made good.
Where pipes will run, agreed.
To the undertaker's requirements.
Before anything closes over it.
Pressure and drainage, before finishing.
Most of this work is invisible and most of its failures are expensive, which is a poor combination. Two things therefore get attention beyond their apparent importance: protecting the public supply against backflow, which exists for everyone else's benefit rather than yours, and recording where pipes actually run before a wall closes over them. A photograph of an open wall is worth a great deal ten years later.
A free first site visit, with no obligation. On a demolition we will establish which rubble regime applies before quoting.