Separating First-Builder Defects from Replacement-Builder Responsibility

Establish the baseline before possession

Complete the site-condition report, issue register, photographs, tests and marked plans before the replacement builder alters the works. Identify known defects, suspected concealed risks and components accepted without verification.

Both owner and replacement builder should acknowledge the baseline in the new contract.

Define interfaces

State where new roofing connects to first-builder framing, new waterproofing meets existing substrates, new services use existing rough-in and new finishes cover earlier work. Allocate inspection, testing and design responsibility for each interface.

A blanket exclusion for all existing work may be commercially understandable but cannot replace a workable delivery plan.

Record discoveries contemporaneously

When a concealed first-builder defect appears, stop at the agreed hold point, notify the owner and insurer, photograph, inspect and price it before rectification. Do not allow the issue to disappear into a general variation with no causal record.

If the replacement builder damages or incorrectly alters existing work, document that separately and use the new contract's defect process.

Use distinct completion evidence

Issue reports should identify who performed the repair, date, method, materials and testing. Retain subcontractor and supervisor records. Later symptoms can then be assessed against a clear repair history.

This protects the homeowner from being passed between two builders and protects the replacement builder from inheriting every historical defect.

Practical takeaway: Responsibility follows evidence. A clear baseline, interface schedule and contemporaneous discovery record are essential once two builders have worked on the same home.

How ARK Houses can help

ARK Houses establishes the baseline before accepting possession and records every interface between our work and the first builder's construction. Discoveries are stopped at hold points, documented and approved so that responsibility does not become blurred after close-up.

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