Home Insurance and Damp: Critical Information for Homeowners

We all have home insurance, or at least we should in order to have peace of mind, yet many UK homeowners have not read the small print and therefore, they are not quite sure what their home insurance actually covers.

In this short article, we offer important information regarding home insurance and whether it covers damage caused by damp.

Damage caused by damp

Most home insurance policies actually cover damage that is caused by damp and moisture; if, for example, damp causes wallpaper or paint to peel off the wall, the insurance should cover replacing the wallpaper or paint, yet the policy would not cover damp repairs, which must be carried out before you can repaper the walls. In the event the DPC membrane is compromised, this will allow rising damp to climb the walls, and the cost of repairing the damp proof course would probably not be covered.

Different types of damp

There are numerous forms of damp, which are as follows:

  • Rising damp – This is caused by a damaged damp proof course at ground level and damp can then rise up the external walls.
  • Penetrating damp – Penetrating damp can affect any part of a building, from the roof to the foundations. Crumbling masonry and inferior mortar are common causes of penetrating damp, while blocked guttering and a leaking roof can also lead to penetrating damp.
  • Condensation – Condensation forms when moisture forms on surfaces that have different temperatures. If the temperature outside is much colder than inside, condensation typically forms on the inside of the window panes, which runs down onto the window mantle and the timber frames, which can be the onset of mould, mildew and wet rot.
  • Mould & mildew – Mould and mildew are caused by the presence of damp; if you should notice a musky smell in the house, this is a sure sign that you have mould somewhere. Regular inspections are the best solution for monitoring damp, mould and mildew; you can contact us at London Damp Specialists and arrange for one of our qualified damp surveyors to inspect the property.

Woodworm, wet and dry rot

Most home insurance policies do not cover woodworm, dry and wet rot; you should always read the small print on any insurance policies, which will give you a clearer understanding of what is covered and what is not.

Damp surveys

If you are about to make an offer on a London property, you should commission our homebuyer damp survey that will give you a detailed report on the status of your property regarding damp issues. We also present a written quote for any remedial work that we recommend; all our work is guaranteed for 30 years, which is a reflection of our high standard of workmanship.

To summarise, most home insurance policies will not cover damp proofing of any kind, they do, however, cover damage that is caused by damp.

Call London Damp Specialists on 020 8528 3864 during office hours or fill in the form on our website for a comprehensive damp survey.

Damp Survey Costs

Transparent pricing with no hidden fees for our independent, unbiased surveys.

Level 1

Level 1

£199 + VAT

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

Level 2

£299 + VAT

What’s included:

  • Everything in Level 1
  • Dry rot inspection
  • Wet rot inspection
  • Woodworm inspection
  • Damp information and prevention guide

 Survey Add Ons

Add On 1

£299 + VAT
Lab Analysis Of Plaster

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.

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Add On 2

£299 + VAT
Mould Lab Swab Testing, qPCR on DNA

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.

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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

Damp Meter

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

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.

Drone Inspection

Drone Inspection

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

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

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

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 Lab Swab Testing

Mould Lab Swab Testing

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.

Lab Analysis of Plaster

Lab Analysis of Plaster

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.

Equipment Used During Our Surveys

Professional Moisture Meter

Equipment Used During Our Surveys

Purpose:

Takes comparative moisture readings from walls, ceilings, floors and timber to identify abnormal moisture patterns.

Common Uses / Notes:

Used when investigating rising damp, penetrating damp, condensation and leaks. Readings support the survey but are not a diagnosis on their own.

Subsurface Moisture Meter

Subsurface Moisture Meter

Purpose:

Detects moisture beneath the surface of suitable building materials.

Common Uses / Notes:

Helps determine whether moisture is confined to surface finishes or extends into the building fabric.

Non-Damaging Moisture Scanner

Non-Damaging Moisture Scanner

Purpose:

Scans surfaces for hidden moisture without causing damage.

Common Uses / Notes:

Ideal for decorated walls, ceilings and flooring where pin testing would be undesirable.

High-Resolution Borescope Camera

High-Resolution Borescope Camera

Purpose:

Inspects hidden or difficult-to-access areas without opening up large sections of the building.

Common Uses / Notes:

Used beneath floors, inside cavities, behind walls and around pipework to identify damp, leaks, decay and concealed defects.

4K Aerial Inspection Drone

4K Aerial Inspection Drone

Purpose:

Captures high-resolution images of roofs and other inaccessible external areas.

Common Uses / Notes:

Inspects roof coverings, chimneys, flashing, gutters, valleys, parapets and high-level masonry. Subject to weather, safety requirements and flight regulations.

Atmospheric Humidity Sensor

Atmospheric Humidity Sensor

Purpose:

Measures indoor relative humidity levels.

Common Uses / Notes:

Helps assess condensation and mould risk alongside temperature, ventilation, heating patterns and room usage.

Gas Detection Monitor

Gas Detection Monitor

Purpose:

Screens for certain airborne gases where unusual odours are present.

Common Uses / Notes:

May detect gases associated with drainage, combustion or flammable substances. Does not replace inspection by a Gas Safe registered engineer where gas appliances or pipework are involved.

Thermal Imaging System

Thermal Imaging System

Purpose:

Identifies temperature differences across building surfaces.

Common Uses / Notes:

Helps locate cold spots, thermal bridging, insulation defects and areas associated with concealed moisture. Results always require further investigation to confirm the cause.

Basic Socket and RCD Tester

Basic Socket and RCD Tester

Purpose:

Performs limited electrical checks during comprehensive surveys.

Common Uses / Notes:

Can identify basic socket wiring issues, AC voltage and RCD operation. It is not an Electrical Installation Condition Report (EICR).

Chemical Vapour Testing Device

Chemical Vapour Testing Device

Purpose:

Screens for airborne volatile organic compounds (VOCs) and formaldehyde.

Common Uses / Notes:

Used where chemical odours, emissions from materials or indoor air-quality concerns are suspected after leaks or refurbishment.

Fine Air Particle Counter

Fine Air Particle Counter

Purpose:

Measures airborne particulate matter (PM1.0, PM2.5 and PM10)

Common Uses / Notes:

Assists with investigations involving dust, smoke, mould concerns, post-construction contamination and indoor air quality following water damage.

Extraction and Air-Movement Tester

Extraction and Air-Movement Tester

Purpose:

Measures the performance of extractor fans and mechanical ventilation systems.

Common Uses / Notes:

Used in kitchens, bathrooms and utility rooms to identify poor ventilation that may contribute to condensation and mould growth.

Contact Us

If you have some questions, please complete this form:

Book and Pay for a survey

If you are ready to book a survey and pay, please complete this form:

Book Survey

Contact Us

If you have some questions, please complete this form:

Book and Pay for a survey

If you are ready to book a survey and pay, please complete this form:

Book Survey

Contact Us

If you have some questions, please complete this form:

Book and Pay for a survey

If you are ready to book a survey and pay, please complete this form:

Book Survey