Where’s the job?

Scope of Works

• Inspect and assess damaged floor joists, bearing points and adjacent timbers for rot or insect damage

• install temporary acro props and bearers to support the floor while works are carried out

• remove affected floorboards or ceiling/plasterboard to access joists and cut out defective sections

• supply, cut and fit new solid or engineered joists with hangers or straps and secure to bearings

• treat adjacent timber for damp/rot if required and fit any local damp-proofing or ventilation measures

• reinstate floorboards, skirting or ceiling finishes and tidy the work area

• use PPE and basic dust control while cutting or removing materials and remove waste offsite

Typical Cost

Time on Site

Most single joist replacements take 4–8 hours; replacing several joists or doing structural repairs usually takes 1–3 days depending on access and drying/treatment times

Questions to Ask Your Tradie

• can you provide a written scope and fixed estimate including temporary support and reinstatement

• will a structural engineer report be needed and who will arrange or pay for it

• what grade, size and treatment of timber will you use and will it match existing joist spans

• how will you protect floors, finishes and services during the work

• what warranty do you provide for structural work and any timber treatments

• who handles waste removal and will you need access to a parking/drop-off space

How to Avoid Surprises

• ensure clear access to underfloor areas, loft hatches and any cupboards before the trades arrive

• reserve parking or a drop-off space for timber and a skip to avoid delays

• move furniture and valuables from adjoining rooms or cover them to protect from dust

• check for asbestos or old insulation before removing ceilings or floorboards and share any surveys

• tell the team about pets and children and agree safe exclusion zones for the work