Timber
Wet rot treatment
Wet rot diagnosis, source correction and proportionate timber repair or treatment.
Why diagnosis matters
Treat the cause, then repair the damage
Wet rot develops where timber remains persistently damp. The priority is to stop the moisture, establish the affected extent and decide what can dry, what needs treatment and what must be replaced.
Technical review
Dan, Director / Surveyor
Last reviewed: July 2026. Advice is general until the property, access and visible evidence have been assessed.
Guarantee & aftercare
Written guarantee terms are matched to qualifying work, with inclusions, exclusions and aftercare explained before acceptance.
What we consider
Possible causes and lookalikes
Plumbing leaks
Defective rainwater entry
Ground or sub-floor moisture
Poor ventilation
Inspection method
A clear work sequence
Step 1
Locate moisture source
Step 2
Expose affected timber safely
Step 3
Remove unsound material where specified
Step 4
Repair, treat and improve drying
Scope boundaries
Honest about what the work does—and does not—cover
Structural design and major timber replacement are referred where necessary. Treatment cannot compensate for an active leak.
Common questions
About wet rot treatment
What is the difference between wet and dry rot?+
Both are fungal decay, but they have different characteristics and behaviour. Correct identification affects the extent of investigation and repair.
Will wet rot dry out?+
Removing moisture stops favourable conditions, but timber already weakened may still need repair or replacement.
Do chemicals fix the problem?+
No treatment replaces source correction and sound timber.
Related services
Continue your investigation
Next step
Claim your complimentary survey before choosing a treatment
Tell us what you can see, when it changes and where the property is. Photographs can help us triage the next step.