Look at the board and the area around it
Rot is associated with timber staying damp. A repair needs to address the moisture source as well as the affected timber. Water can also reach materials behind a wall before the extent of the problem is obvious from the outside.
From a safe position on the ground, photograph the whole wall and then the area that concerns you. Include nearby windows, doors, gutters, decks and ground levels in the wider view. Those relationships help explain where the problem sits.
- Paint repeatedly lifting in one place: note when it was last painted and whether the same patch has returned.
- Open joints, splits or distorted boards: show the board ends and adjoining trims in the photo.
- Soft or crumbling timber you have already noticed: describe the location and approximate extent without pulling the wall apart.
- Staining indoors nearby: photograph the inside as well and note whether it changes after rain.
For weatherboard repairs, a photograph helps us prepare for a conversation. A site assessment establishes the condition and the appropriate repair scope. If water is entering the home now, say that when you contact us.
What separates a small repair from wider work?
| What the assessment finds | The decision to discuss |
|---|---|
| A limited damaged section | Whether replacing a section or an individual board will leave a sound, weather-resistant repair, with the moisture cause resolved. |
| Several affected boards | How much cladding needs to come off to assess the wall properly, and how matching boards and junctions will be handled. |
| Damage behind the cladding | The extent of framing and wall-underlay work, the design input required, and the approval path before the repair is priced in full. |
| Repeated problems across the exterior | Whether a broader assessment and a planned recladding scope are more appropriate than a series of isolated patches. |
If the work expands beyond a local repair, our recladding service is the next place to start. You can also use our recladding cost guide to organise the items that belong in a larger budget.
Make the repair boundary clear
For example, a patch below a window raises more questions than the length of replacement board. Ask for the window junction, adjoining boards and any concealed damage to be considered. Then agree who will complete the surface preparation and painting after the building repair.
Keep the original visible repair area and any additional work found during opening-up separate in the written scope. Agree how discoveries will be photographed, explained and priced before extra work proceeds.
A useful weatherboard repair brief
- Identify the property and wall. Give us the address, the side of the house and whether the area can be reached from ground level.
- Describe what changed. Include when you first noticed it, recent leaks or painting, and any earlier repairs.
- Send context and close-up photos. Show the surrounding wall as well as the damaged patch, plus matching areas inside.
- Include existing documents. Share any relevant building report, plans or previous repair information.
- Explain access. Mention a sloping section, narrow side passage, garden beds, a deck below the wall or other access constraints.
- Set the finish expectation. Discuss the board profile, preparation, paint extent and making good around the repair.
Before disturbing older cladding or coatings, have the materials assessed and agree a suitable work method. Keep the investigation with the people doing the repair.
Some comparable repairs may be exempt from building consent, but the exemption has limits, including substantial structural replacement and certain durability failures. Confirm the actual scope with the builder and council before work begins. Our renovation consent guide helps you prepare that discussion.
Questions about rotten weatherboards
Does one rotten board mean the whole house needs recladding?
No. The extent of deterioration and the condition behind the board determine the scope. Start with an assessment of the affected area and the cause of the moisture.
Can I just paint over the damaged area?
Painting over deteriorated timber will not restore sound timber or fix the source of moisture. Have the damage assessed before deciding on preparation and finishing.
What should I ask to see in the quote?
Ask for the repair boundary, access arrangements, making-good work and exclusions. Our guide to comparing renovation quotes helps you check how discoveries and changes will be handled.