Wet Rot & Dry Rot Treatment

Timber Rot and Decay

Timber rot is a serious issue that can compromise the structural integrity of a property if left untreated. There are two main types of rot: wet rot, which develops when timber remains damp over extended periods, softening the wood, and dry rot, which is more aggressive, attacking the cellulose in timber and spreading quickly—even into dry areas. Identifying and addressing rot early is essential to protect your home and prevent costly repairs.

Causes of Timber Decay

Rot can develop for a number of reasons. Common causes include leaks or plumbing issues, poor ventilation, high humidity or condensation, and bridged or ineffective damp proofing. Any situation that allows timber to remain damp for extended periods increases the risk of decay, making it important to identify the underlying cause as well as the visible damage.

Signs of Timber Decay

Homeowners may notice soft, spongy, or crumbly timber, dark discoloured patches, or fungal growth accompanied by a musty odour. Shrinking, cracking, or twisting wood and powdery deposits or mycelium can also indicate the presence of active rot. Recognising these signs early allows for professional intervention before the issue spreads further.

How We Identify Timber Decay

Our CSDB-qualified surveyors carry out thorough inspections of all accessible timbers in the property, including floors, joists, skirting boards, window frames, and roof timbers. Where necessary, and with the homeowner’s permission, we can lift floorboards to assess the full extent of decay. Using specialist equipment such as moisture meters, thermal imaging cameras, timber probes, borescopes, and inspection cameras, we can determine whether the rot is active, which areas are at risk, and the severity of the problem. On the day of the survey, the surveyor will discuss any immediate findings and answer questions. A detailed written report is then delivered within three working days.

Timber Rot Treatments and Prevention

Rot is not a problem that can be solved with DIY methods or routine maintenance. Once identified, professional remedial action is always required. Depending on the findings, treatments may include timber replacement or repairs, chemical treatments and wood preservatives, and measures to prevent further moisture ingress. Our surveyors also provide guidance on steps to reduce the risk of future decay, such as improving ventilation and controlling moisture, while addressing the underlying causes like poor ground levels or plumbing issues.

Why You Should Book a Timber Survey

Early identification of timber decay protects your property and saves significant expense in the long term. Our surveys are designed to give homeowners a clear understanding of the condition of their property, the extent of any rot, and the recommended actions needed to resolve it. Booking a professional timber survey with our CSDB-qualified surveyors ensures accurate diagnosis, clear guidance, and peace of mind.