Wet Rot & Dry Rot Treatment Specialists

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Years Of Experience

Professional Timber Preservation Across Wiltshire & The South West

Overview

Timber decay can cause serious structural damage if left untreated. At Damp Services Direct, we provide expert diagnosis and treatment of wet rot and dry rot, protecting properties across Wiltshire and the South West.

With over 20 years of experience working on residential, period and high-value properties, we understand that accurate diagnosis is critical. Not all timber decay is the same — and the wrong treatment can make matters worse.

We identify the true cause, eliminate the source of moisture, and implement long-lasting timber preservation solutions.

What Is Dry Rot?

Dry rot (Serpula lacrymans) is the most serious form of fungal timber decay found in buildings.

Unlike other forms of rot, dry rot can spread beyond the original source of moisture. It produces strand-like growths (mycelium) that can travel across masonry in search of new timber to infect. If conditions remain damp, it can spread rapidly and cause significant structural damage.

Signs of Dry Rot:

  • Cracked, cuboidal timber (deep cracking pattern)

  • Brittle or crumbly wood

  • Mushroom-like fruiting bodies

  • White or grey cotton wool-like growth

  • Rust-coloured spore dust

  • Damp, musty odour

Dry rot requires urgent professional treatment.

What Is Wet Rot?

Wet rot is more common and typically less aggressive than dry rot. It occurs when timber remains damp over a prolonged period, usually due to leaks, poor ventilation, or external defects.

Unlike dry rot, wet rot generally remains confined to the affected timber and does not spread through masonry.

Signs of Wet Rot:

  • Darkened or soft timber

  • Localised decay around leaks

  • Flaking paint on window frames

  • Timber that feels spongy

  • Cracking along the grain

Wet rot is serious but usually easier to contain when addressed early.

Why Does Timber Rot Occur?

Both wet rot and dry rot require moisture to develop.

Common contributing factors include:

  • Leaking gutters or downpipes

  • Poor loft ventilation

  • Blocked air bricks

  • Timbers built into damp walls

  • Plumbing leaks

  • High external ground levels

  • Concrete floors replacing suspended timber floors

  • Extensions with solid floors affecting airflow

Eliminating the moisture source is always the first and most important step.

Why Choose Damp Services Direct?

We are experienced timber preservation specialists with a strong reputation across the South West.

Our Credentials:

  • Over 20 years’ industry experience

  • Approved Contractor – Permagard (Damp & Timber)

  • Approved Contractor – Triton Chemicals

  • £2,000,000 Public Liability Insurance

  • Member of the Federation of Small Businesses

  • Member of Checkatrade

Professional Training:

  • Triton Chemicals – Damp Control & Timber Preservation

  • NEBOSH General Certificate (Health & Safety)

  • IOSH Managing Health & Safety

  • COSHH Trained (Safe Use of Chemicals)

All work is carried out in accordance with BS5268 Part 5 and strict Health & Safety Executive guidance.

Our Wet & Dry Rot Services

We provide complete timber treatment and structural repair solutions, including:

  • Professional diagnosis of timber decay

  • Wet rot treatment

  • Dry rot eradication (Serpula lacrymans)

  • Removal of infected timber

  • Structural timber replacement

  • Application of specialist preservative treatments

  • Subfloor ventilation improvements

  • Elimination of moisture sources

  • Preventative timber treatments

We treat both the cause and the damage — ensuring long-term protection.

How We Diagnose Timber Decay

Accurate identification of the type of rot is essential before treatment begins.

We use advanced diagnostic equipment including:

  • Protimeter MMS2 moisture meter

  • FLIR thermal imaging camera

  • Borescope (subfloor and cavity inspection)

  • Detailed visual and structural assessment

  • Decay pattern analysis

Our experience allows us to differentiate between wet rot, dry rot, and other forms of fungal or insect attack.

Environmentally Responsible Timber Treatment

Our timber treatment systems are:

  • Low hazard

  • Non-caustic

  • Solvent free

  • Non-flammable

  • Suitable for internal and external use

  • Recommended for all types of structural timber

We use professional-grade products that are both environmentally responsible and highly effective.

20-Year Timber Preservation Guarantee

All qualifying timber preservation works are backed by a 20-year guarantee, giving you confidence and long-term peace of mind.

What To Do If You Suspect Timber Rot

If you notice cracked timber, spongy floorboards, musty smells, or visible fungal growth, do not delay.

Early intervention significantly reduces repair costs and prevents structural weakening.

Contact Damp Services Direct for a professional timber inspection. We will:

  1. Identify the type of rot present

  2. Locate and eliminate the moisture source

  3. Recommend the appropriate treatment

  4. Provide a clear quotation and guarantee

Protect Your Property with Professional Timber Preservation

Timber decay does not resolve itself. Left untreated, it can compromise floors, roofs, structural supports, and internal joinery.

If you suspect wet rot or dry rot in your property in Wiltshire or the South West, contact Damp Services Direct today to arrange a specialist survey.

Unsure What Treatment You Need?

Speak Directly With a Damp & Timber Specialist Today

Immediate Assistance Available

Call Us : 07738 572899

Book a Professional Survey

FAQS

What is the difference between wet rot and dry rot?

Wet rot occurs when timber remains damp over time and decay is usually confined to the affected area. Dry rot (Serpula lacrymans) is more serious and can spread through masonry to infect other timber if moisture is present. Dry rot requires urgent specialist treatment, whereas wet rot is typically localised and easier to contain.

Is dry rot dangerous to a property?

Yes. Dry rot can significantly weaken structural timbers including floor joists, roof timbers and staircases. If left untreated, it can compromise the structural integrity of a building. Early professional intervention greatly reduces repair costs and damage.

How quickly can dry rot spread?

Dry rot can spread rapidly in damp, poorly ventilated environments. It produces strand-like growths (mycelium) that can travel across walls in search of new timber. The rate of spread depends on moisture levels and ventilation conditions.

What causes timber rot in a house?

Timber rot is always linked to excess moisture. Common causes include: Leaking gutters and downpipes Plumbing leaks Blocked air bricks Poor subfloor ventilation Condensation in loft spaces Timbers built into damp masonry High external ground levels Removing the source of moisture is the first and most important step in treatment.

Can wet rot turn into dry rot?

No. Wet rot and dry rot are caused by different types of fungi. However, the damp conditions that cause wet rot can also create the environment for dry rot to develop if not addressed.

How do you diagnose the type of rot?

We use professional moisture meters, thermal imaging cameras, borescopes, and visual decay pattern analysis. Our experience allows us to accurately distinguish between wet rot, dry rot, and other forms of timber decay. Correct diagnosis is critical before any treatment begins.

Do you have to remove infected timber?

In many cases, yes. Severely decayed timber must be removed and replaced. Where appropriate, we also treat surrounding timbers to prevent further spread.

How disruptive is rot treatment?

Treatment disruption depends on the severity and location of the decay. Localised wet rot repairs may be minimal, while extensive dry rot may require floor or plaster removal. We always aim to minimise disruption and clearly explain the scope of work beforehand.

Are your timber treatments safe?

Yes. We use professional-grade preservative systems that are low hazard, solvent free, non-flammable and compliant with Health & Safety Executive guidelines. All technicians are COSHH trained.

Do you provide a guarantee?

Yes. Qualifying timber preservation work comes with a 20-year guarantee, giving you long-term peace of mind.

Is timber rot covered by home insurance?

In most cases, rot is considered a maintenance issue and is not typically covered by standard home insurance policies. However, we can provide documentation if required for your insurer.

What should I do if I suspect timber rot?

If you notice cracked timber, spongy floorboards, a musty smell, or visible fungal growth: Avoid disturbing the affected area Check for obvious sources of moisture Contact a professional timber specialist Early diagnosis significantly reduces repair costs and prevents further structural damage.

Our professional damp proofing service quickly identifies and treats the root cause of moisture problems using advanced diagnostic equipment and proven treatment methods. Whether you’re dealing with rising damp, mould growth, condensation issues or timber decay, our experienced specialists respond promptly to protect your property and restore a dry, healthy environment with minimal disruption.

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