Full addition
First-floor construction
The construction phase of an addition is a race against weather and an exercise in protection. The existing roof comes off, the new floor structure lands on the prepared walls, and the upper level is framed and made weathertight: all while the ground floor remains someone's house, furniture and life.
Scope
What this covers
Temporary weather protection systems over the exposed structure during the open phase
New floor framing installed to the engineer's details across the supporting walls
Wall and roof framing, windows and cladding to lock-up
Electrical and plumbing rough-in for the new level, tied into upgraded services where needed
Internal linings, wet areas and finishes through to the certifier's final inspections
Timing
When it's needed
Construction follows the construction certificate or complying development approval. The open-roof window is planned tightly: pre-fabricated framing, pre-ordered windows and a weather-watched program shrink the period when the house depends on tarps and temporary membranes.
During construction the home is a live worksite above an occupied dwelling: respect exclusion zones inside your own house, keep children away from the stair void and any exposed structure, and never climb to inspect roof works yourself. Report loose temporary coverings before bad weather, not after.
Quote variables
What shapes the scope
Addition size and whether it spans the full footprint or part of it
Weather exposure during the roof-off phase and the protection strategy
Service upgrades: older switchboards and undersized hot water systems often need renewal
Whether the household stays in residence or relocates during the works
In NSW, building work of this scale must be performed by a contractor licensed with NSW Fair Trading under a compliant written contract, with home building compensation cover in place for contracts above the insurance threshold before work starts or a deposit is paid. Structural design must come from a suitably qualified engineer. Verify every licence claim against the public registers rather than taking a website's word, including this one.
Addition services
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