Wet Rot, Dry Rot & Woodworm Treatment in Southampton
Learn how Proofterior restores and protects Southampton homes from timber decay, woodworm infestations, and rot caused by damp and poor ventilation.

Understanding the Problem: Timber Decay and Damp in Southampton Properties
Timber decay is one of the most overlooked yet damaging consequences of damp. In Southampton, where many homes experience high humidity and rainfall, untreated moisture can lead to wet rot, dry rot, and woodworm infestations that quietly compromise a property’s structure.
Wet rot occurs when timbers stay damp due to leaks, condensation, or rising damp. The wood becomes soft, darkened, and crumbly.
Dry rot is a more serious fungal decay that spreads quickly through masonry and concealed areas, feeding on dry wood once moisture levels fall.
Woodworm infestations happen when beetle larvae burrow through timber, leaving tiny holes and fine dust known as frass.
Each condition poses a serious risk to your home’s safety and value if left untreated — especially in older Southampton properties where timber is a key structural element.

Step 1: Professional Timber & Damp Survey
Identifying the True Cause Before Treatment Begins
Every successful repair starts with a detailed damp and timber survey. Our qualified specialists carry out:
Moisture testing to determine whether timber decay is caused by rising damp, leaks, or condensation.
Timber probing and core sampling to assess the extent of internal rot or insect damage.
Visual and thermal inspection to locate hidden damp areas and identify potential moisture sources.
By pinpointing the cause of the problem, we can recommend the right treatment plan — ensuring you only pay for what’s necessary to fully protect your Southampton property.

Step 2: Moisture Control and Source Elimination
Stopping Damp Before Treating the Timber
Before treating rot or woodworm, the moisture problem must be resolved. Proofterior’s team tackles the root cause through:
Repairing roof leaks, gutters, and flashings to prevent recurring damp.
Installing ventilation systems or passive air vents to reduce condensation.
Applying damp proofing treatments to prevent moisture migration through walls or floors.
Once moisture control is achieved, we can proceed with targeted timber treatment for long-term protection.

Step 3: Targeted Treatment for Wet Rot, Dry Rot & Woodworm
Specialised Methods Tailored to Each Problem
For Wet Rot:
We apply fungicidal preservatives to kill the rot fungus and treat all surrounding areas at risk. Severely damaged timbers are replaced with pre-treated, kiln-dried replacements.
For Dry Rot:
Dry rot requires a more comprehensive approach. We remove all affected plaster, timbers, and spores, followed by treatment using high-strength biocidal solutions. Masonry and void spaces are also sterilised to prevent regrowth.
For Woodworm:
Our team uses professional-grade insecticidal sprays and injection treatments that penetrate deep into the timber, killing larvae and preventing future infestations.
These treatments are safe, effective, and fully compliant with modern property care standards.

Step 4: Structural Repairs & Reinstatement
Restoring Your Property to a Safe and Sound Condition
Once the source and decay are treated, we repair and restore affected areas. This may include:
Replacing damaged floorboards, joists, or beams.
Replastering and redecorating treated surfaces.
Applying protective timber coatings to enhance longevity.
Our focus is on restoring the structure, appearance, and comfort of your Southampton property — ensuring the repairs are both durable and visually seamless.

The Result: Dry, Strong, and Protected Timberwork
After treatment, moisture readings normalise, rot spores are eradicated, and timbers regain their integrity. Floors and walls feel solid, indoor air quality improves, and your home is free from the damp odours and structural risks that rot and woodworm cause.
Frequently Asked Questions About Damp Proofing in Southampton.
How much does damp proofing cost in Southampton?
Cost depends on the cause, access, and finish. A damp survey in Southampton identifies whether you need a chemical DPC, membrane, ventilation upgrade, or external repairs. Once the survey is complete, you receive a fixed, written quote so there are no surprises.
Will damp proofing improve energy efficiency?
Yes. Dry walls hold heat better than wet ones, and controlled ventilation reduces excess humidity. Pairing repairs with options like ISO-THERM on cold external walls can lift surface temperature and make rooms feel warmer at lower thermostat settings.
How long does damp proofing last?
When the source of moisture is treated and the right system is installed, damp proofing is designed to last for many years. Longevity improves with simple upkeep, clear gutters, sound pointing, and good ventilation. We include aftercare so results stay stable.
Seeking expert advice can further clarify specifics related to your property’s unique needs. Professional assessments are invaluable in providing tailored solutions. Always consult with a specialist for the most accurate guidance.
Ready to protect your Southampton property?
Book a damp survey in Southampton with Proofterior. Our local damp specialists deliver clear diagnosis, tidy repairs, and long-lasting proofing that keeps homes dry, healthy, and comfortable.