Combined Damp and Timber Inspection

Damp & Timber Survey

A specialist survey combining damp investigation with timber inspection — identifying moisture problems, wood-boring beetle infestation, fungal decay and rot. Provides a complete picture of damp and timber-related defects in one comprehensive report.

Ideal for older properties, homes with suspected damp or timber issues, and properties where a standard home survey has flagged damp or timber defects that need closer investigation. Covers everything from rising damp and penetrating damp to woodworm, dry rot and wet rot.

Damp & Timber Survey

Full Damp Assessment
Timber Inspection
Woodworm Detection
Rot Diagnosis
Floor Void Inspection
Accredited & Regulated

Our Home Surveyor & Property Valuer Accreditation & Professional Membership

Our Damp & Timber Surveys are carried out by qualified surveyors who belong to the professional bodies that set UK property standards. Every report is prepared to recognised guidance and is completely independent, so you can rely on the findings when you buy, sell or value a home.

Overview

What Is a Damp & Timber Survey?

A Damp & Timber Survey is a specialised, combined inspection that assesses both moisture-related defects and the condition of structural timbers in a property. It is typically commissioned when a general home survey has flagged damp or timber concerns, or when an older property is being purchased where damp and timber issues are more likely. The survey provides a detailed report on the type, source and severity of damp, the condition of exposed timbers, and any evidence of wood-boring beetle infestation or fungal decay.

What It Covers

  • Full damp assessment of all accessible walls, floors and ceilings
  • Moisture meter readings throughout the property with recorded values
  • Identification of rising damp, penetrating damp and condensation
  • Inspection of all accessible structural and non-structural timbers
  • Detection of wood-boring beetle infestation (woodworm) and species identification
  • Diagnosis of fungal decay including dry rot (Serpula lacrymans) and wet rots
  • Floor void inspection where access hatches exist
  • Detailed report with rectification recommendations and cost guidance

What It Does Not Cover

  • Invasive timber testing that damages decorative surfaces
  • Lifting of fixed floorboards without prior consent
  • Chemical analysis of plaster or masonry samples
  • Structural engineering calculations or load-bearing assessments
  • Full electrical or gas installation testing
  • Guaranteed identification of concealed infestation behind panelling or plaster
Suitability

Is a Damp & Timber Survey Right for You?

This combined survey is ideal for specific scenarios — but it is not always the right choice. Here is how to tell if it suits your situation.

Suitable For

  • Older properties (pre-1950) where damp and timber defects are more likely
  • Properties where a Level 2 or Level 3 survey has flagged damp or timber concerns
  • Homes with visible signs of damp — staining, peeling wallpaper, musty smells
  • Properties with suspected woodworm, dry rot or wet rot
  • Period properties with suspended timber floors
  • Buyers who want one combined inspection rather than two separate surveys
  • Homeowners planning renovation works who need to understand the full extent of damp and timber issues beforehand

Not Suitable For

  • Modern flats in purpose-built blocks with no history of damp or timber issues
  • Properties where only a basic valuation or condition report is required
  • Solely cosmetic damp issues clearly caused by condensation and poor ventilation
  • Properties where destructive testing is the main objective (this survey is non-invasive where possible)
  • Situations where a full structural engineer's report is needed for subsidence or major movement

Not sure if a Damp & Timber Survey is what you need? Speak to a surveyor for free, no-obligation advice.

What You Get

What Is Included in a Damp & Timber Survey

Every Damp & Timber Survey we produce includes the following as standard.

Moisture Profiling

Systematic moisture meter readings across all accessible walls, floors and ceilings with recorded percentage values and a visual moisture map.

Rising Damp Assessment

Inspection for classic signs of rising damp including tide marks, salt efflorescence, skirting decay and hygroscopic salts.

Penetrating Damp Inspection

Identification of water ingress through walls, roofs, window and door openings, defective render, leaking gutters and failed seals.

Condensation Analysis

Assessment of ventilation, humidity levels and condensation patterns contributing to mould growth and surface dampness.

Timber Inspection

Examination of all accessible structural and joinery timbers for signs of decay, infestation or structural weakness.

Woodworm Detection

Identification of active and historic wood-boring beetle infestation (including Common Furniture Beetle, Deathwatch Beetle and Powderpost Beetle) with species identification where possible.

Dry Rot Diagnosis

Detection and assessment of Serpula lacrymans (true dry rot) including extent of outbreak, source of moisture and recommended treatment.

Wet Rot Assessment

Diagnosis of wet rot species (Coniophora puteana, Fibroporia vaillantii and others), moisture source identification and repair recommendations.

Floor Void Inspection

Inspection of sub-floor voids via existing access hatches to assess ventilation, damp, timber condition and debris — a common source of hidden defects.

Detailed Report

Comprehensive report with colour photographs, annotated moisture maps, defect schedule, rectification recommendations and indicative cost guidance.

Process

How the Damp & Timber Survey Process Works

From enquiry to report — straightforward and transparent.

1

Get a Quote

Contact us with the property details and any specific concerns. We respond within 24 hours with a fixed-price quote.

2

Book the Survey

Choose a convenient date. We schedule within 5–10 working days. Pre-survey questionnaire helps us understand the property history.

3

Surveyor Inspects

The surveyor conducts a thorough damp and timber inspection, typically taking 2–4 hours depending on property size. Moisture readings and photographs are taken throughout.

4

Receive Your Report

Your comprehensive Damp & Timber Report with photographs, moisture maps and rectification recommendations is delivered within 5 working days.

FAQs

Damp & Timber Survey Questions

What is the difference between dry rot and wet rot?

Dry rot (Serpula lacrymans) is the more serious of the two and can spread through masonry and behind plaster in search of timber to attack, even crossing non-timber materials. It requires a sustained moisture source to start but can continue growing once established with less moisture than wet rot. Wet rot (including species like Coniophora puteana — cellar fungus) remains localised to the damp area and does not spread through masonry. Both require the moisture source to be eliminated as part of the treatment, but dry rot demands more extensive remedial work including removal of affected timber, chemical treatment of surrounding masonry and improved ventilation. Our survey will correctly identify which type is present — misdiagnosis is common and can lead to inadequate treatment.

Is woodworm a serious problem?

The severity of woodworm depends on the species of beetle, the extent of the infestation and whether it is active or historic. The Common Furniture Beetle (Anobium punctatum) is the most frequently encountered and, in most cases, causes limited structural damage if the infestation is light and confined to floorboards or joinery. However, Deathwatch Beetle (Xestobium rufovillosum) is far more serious and can cause significant structural weakening in large-section hardwoods such as oak beams — it is often found in older properties, churches and period homes. Powderpost Beetle (Lyctus brunneus) attacks the sapwood of hardwoods and can cause rapid deterioration of newer timber flooring, furniture and joinery. A key part of our survey is distinguishing active infestation from historic damage, identifying the beetle species involved and advising on whether chemical treatment or timber replacement is needed. In many cases, old flight holes are mistaken for an active problem, and unnecessary chemical treatments are prescribed.

How much does a Damp & Timber Survey cost?

Our Damp & Timber Survey starts from £350 plus VAT for a typical three-bedroom house. The exact price depends on the size, age and construction of the property, as well as the complexity of the issues being investigated. Larger properties, period homes with multiple areas of concern, or properties requiring extensive floor void access will cost more due to the additional time required on site. We provide a fixed-price quote within 24 hours of your enquiry — the price we quote is the price you pay, with no hidden extras and no travel surcharges within our seven counties. Importantly, combining damp and timber inspections into one survey is considerably more cost-effective than commissioning two separate specialist reports.

How long does a Damp & Timber Survey take?

The on-site inspection typically takes between 2 and 4 hours, depending on the size of the property, the number of areas to inspect and the complexity of the damp and timber issues identified. A typical three-bedroom semi-detached house takes around 2 to 3 hours. Larger properties, period homes with multiple damp-affected areas, or properties with extensive suspended timber floors requiring detailed sub-floor inspection will take longer — up to 4 hours or more. After the inspection, the surveyor compiles the report, which is delivered within 5 working days. We never rush the inspection; thoroughness is essential for an accurate diagnosis.

Can I speak to the surveyor after receiving the report?

Yes — and we actively encourage it. Every client who instructs us for a Damp & Timber Survey is welcome to speak directly to the surveyor after receiving the report. Damp and timber defects can be complex, and the rectification recommendations often involve tradespeople, treatment specialists and building work, so understanding the report fully is important. You can call to discuss any finding, ask about treatment options, or clarify anything that is unclear. There is no charge for this follow-up conversation and no call centre — you speak to the surveyor who inspected your property.

Do I need a Damp & Timber Survey if my Level 2 survey already flagged damp?

It depends on the specific findings in your Level 2 Home Survey. A RICS Level 2 surveyor will note visible signs of damp and may recommend further investigation — but they do not carry out the detailed moisture profiling, timber assessment or fungal decay diagnosis that a dedicated Damp & Timber Survey provides. If your Level 2 report uses wording such as "further investigation recommended" or "specialist damp and timber report advised", then commissioning a Damp & Timber Survey is sensible. It gives you the detailed information you need to negotiate with the vendor, budget for remedial work and instruct the right contractors. We can often review your existing survey report and advise whether a specialist follow-up is warranted — just get in touch.

Get a Fixed-Price Damp & Timber Survey Quote

Free, no-obligation quote within 24 hours. One combined inspection covering both damp and timber defects.