Dry Rot and Wet Rot — Contain It Before It Spreads
Fungal decay can spread rapidly through a property. We contain it, treat with specialist fungicides, and replace any structurally compromised timber.
About Dry Rot & Wet Rot Treatment
Dry rot (Serpula lacrymans) is one of the most serious timber defects a property can suffer. Unlike wet rot, dry rot can spread through masonry and travel significant distances from its moisture source — rapidly destroying structural timbers and plaster as it goes. Wet rot (Coniophora puteana) is more common and confined to the immediate damp area, but still causes serious structural damage to joists, rafters, and floorboards. Both require specialist treatment: fungicide application, removal of infected material, and — most importantly — elimination of the moisture source. EverDry Damp handles the full remediation from survey to reinstatement.
Signs You May Need Dry Rot & Wet Rot Treatment
- Cuboidal cracking of timber (characteristic of dry rot)
- Rust-red spore dust around affected areas
- White or grey mycelium (fungal threads) on timber or masonry
- Fruiting bodies — mushroom-like growths on walls or floors
- Soft, spongy timber with no structural integrity
- Musty, mushroom-like smell
Common Causes
- Persistent damp conditions — dry rot requires above 20% wood moisture content to establish
- Poor ventilation allowing moisture to accumulate in subfloor void
- Defective plumbing leaks reaching structural timbers
- Rising damp affecting ground floor joists
Frequently Asked Questions
How quickly can dry rot spread?
Dry rot can spread at a rate of several millimetres per day under ideal conditions, travelling through masonry and across large areas of a property. Early identification and treatment is critical — delays significantly increase the cost and scope of remediation.
What is the difference between dry rot and wet rot?
Dry rot (Serpula lacrymans) is the more serious — it can spread through masonry and is not confined to the original wet area. Wet rot remains in the immediate damp zone and will stop if the moisture source is removed. Both require treatment but dry rot demands a much more thorough remediation.
Do I need to move out during dry rot treatment?
In most cases no, though we may need to restrict access to treated areas for 24–48 hours while fungicide treatments cure. We discuss the programme with you before work starts to minimise disruption.
Dry Rot & Wet Rot — Areas We Cover
We provide dry rot & wet rot treatment across Newport, Cardiff and throughout South Wales.
Ready to Solve Your Damp Problem?
Free survey. Honest advice. 10-year guarantee on basement waterproofing. Get in touch today.
Book Your Free Survey
Fill in the form and we'll call you back to arrange a convenient time to visit. No charge for the survey. No obligation to proceed.