Woodworm, Dry & Wet Rot – A London Homeowner’s Guide
Timber has long been the go-to material for construction, especially from the Victorian Era onwards, and while wood has many benefits, it is susceptible to woodworm and various forms of rot, which we outline in this short article.
What is woodworm?
There are numerous species of beetle that lays its eggs in timber here in the UK; the Common Furniture Beetle, Anobium Punctatum likes softwood such as pine and spruce, although it can infest species of hardwood; no timber is safe from this prolific beetle that has been around since time began. Other species include the Death Watch Beetle, a dark brown insect that burrows deep into wood and lays its eggs; tell-tale signs include small piles of dust next to the holes and if you spot these insects dead on the floor, there is a nest nearby. The House Longhorn Beetle is another UK inhabitant that might decide to set up home in your property; it likes oak and ash; while it is less common that the Common Furniture Beetle, the larvae can take as long as 10 years to fully develop, ending up 25mm long. The experts know the best treatments and can make short work of an operation.
Dry rot
Dry rot is a timber fungus that eats wood, causing it to lose its tensile strength and it can be from numerous fungi; a 4-stage process starts with microscopic spores that become airborne, which resemble a fine orange dust. If there is adequate moisture, the spores settle and germinate, creating thin white strands, after a while, further blooms form and they release more spores and the cycle continues. Timber becomes brittle and often cracks and splits, which is not a good sign.
Wet rot
Also known as cellar fungus, wet rot breaks down the wood cells, causing the timber to lose its strength. As the name suggests, there needs to a be a very damp environment for wet rot to thrive; exposure can lead to respiratory conditions, as well as allergies on the skin.
Effective treatment
If you even suspect you have woodworm or timber decay in your London home, you should call London Damp Specialists and arrange for a timber preservation expert to carry out a thorough inspection. Solutions include generating a good airflow and carrying out damp proofing to prevent further moisture penetration; we can offer an all-inclusive quote for timber treatments and repair.
Time is of the essence
Time waits for no one and when timber becomes infected with beetle larvae, you need to take action sooner rather than later. Fungi grows in the right conditions and visible signs quickly follow an initial infestation; if you notice signs of timber decay, don’t procrastinate, as this will invariably lead to more expensive repairs.
Unless you happen to be a damp proofing and timber preservation specialist, you need to call in the professionals at London Damp Specialists, call 020 7458 4864 to book an inspection and get to the bottom of the problem.
Damp Survey Costs
Transparent pricing with no hidden fees for our independent, unbiased surveys.
Level 1
What’s included:
- Inspection of walls
- Inspection of floors
- Inspection of ceilings
- Leak inspection of drains and plumbing
- Damp information and prevention guide
Level 2
What’s included:
- Everything in Level 1
- Dry rot inspection
- Wet rot inspection
- Woodworm inspection
- Damp information and prevention guide
Level 3 (Most Popular)
What’s included:
- Everything in Level 1 & Level 2
- Thermal Imaging
- Air humidity testing
- HD boroscope camera
- Brickwork pointing inspection
- DPC inspection
- Ventilation flow test on extractor fans
- 4K drone imagery roof, chimney stack
and guttering inspection - Structural condition inspection
- Damp information and prevention guide
Survey Add Ons
Add On 1
Laboratory analysis Of plaster identifies hygroscopic salts such as chlorides and nitrates. which indicate whether damp is caused by rising groundwater or by plumbing leaks, This testing removes guesswork, allowing the exact source of moisture to be identified so the correct treatment is applied rather than carrying out unnecessary damp-proofing work.
Add On 2
qPCR DNA mould testing detects microscopic mould spores that are invisible during a normal inspection and van remain hidden behind walls, floors. or inside building rkaterials. It identifies the exact mould species present and the contamination level, allowing hidden mould problems to be confirrned and properly treated before they affect the property or occupants’ health.
Qualifications: All our surveyors are PCA and CSRT qualified for remedial treatments and also CSSW qualified for structural waterproofing.
Next day report: You will receive the report within 24 hours of the inspection taking place.
The survey fee will be deducted from the cost of any recommended repairs.
These are the tools we use
A damp meter
A damp meter is a diagnostic tool used to detect and measure moisture levels within building materials such as plaster, brick, timber, and concrete.
Borescope camera
borescope camera is a small inspection camera attached to a flexible semi-rigid cable that allows you to see inside areas that are otherwise inaccessible.
Inspection Drone
A drone is a remotely operated aerial device equipped with a camera that allows visual inspection from above without the need for scaffolding or ladder.
Air Humidity Sensor
Air humidity sensor measures the amount of moisture present in the air, expressed as relative humidity (RH) in percentage. It helps determine whether indoor conditions are contributing to condensation, mould growth, or damp-related issues.
Thermal Imaging Camera
A thermal imaging camera detects temperature differences on surfaces by using infrared technology to produce a heat map image. In damp investigations, it helps identify cold spots, moisture intrusion, insulation defects, thermal bridging and leaks.
Air Flow Ventilation Detector
An air flow ventilation detector measures the movement and volume of air passing through vents, extractor fans, and air bricks. It confirms whether ventilation systems are working properly and achieving adequate air changes within a room. Poor airflow leads to trapped moisture, high humidity, condensation on cold surfaces, and ultimately mould growth.
Mould Swab Test Kit
A mould swab test is carried out to confirm the presence of hidden mould growth and identify the specific species involved. Surface mould is not always visible, especially behind furniture, inside cavities, or within ventilation systems. Laboratory analysis of a swab sample determines whether active mould spores are present and what type they are, which helps assess potential health risks and decide the correct remediation approach rather than relying on visual assumption alone.
Plaster Salt Analysis Lab
Laboratory analysis of plaster is used to identify the type of salts present within the material, typically chlorides and nitrates. The presence and concentration of these salts help determine whether the moisture source is consistent with rising damp, ground contamination, or another forms [sic] of water ingress. such as mains water leak, This removes guesswork and prevents misdiagnosis, ensuring the correct remedial treatment is specified rather than applying unnecessary or ineffective solutions.
