The Serious Health Risks of Damp and Mould: What You Need to Know

The wet climate here in the UK is the perfect environment for damp and mould to thrive and this can be a serious health risk. In this short article, we offer useful information for London homeowners about the serious health risks that damp and mould present.

What are the health risks associated with damp and mould?

Damp and mould generate allergens, irritants and spores that are toxic and therefore harmful to health, even mould that is not visible to the naked eye can be harmful. Excessive moisture is a breeding ground for mites, fungi and other micro-organisms and if such a situation is not addressed, it poses serious health risks for the house occupants. At London Damp Specialists, we offer a wide range of damp proofing services for London homeowners and if you suspect damp and mould are present in your home, we can carry out a thorough damp and mould survey, along with a quote for remedial work.

Respiratory conditions

Damp and mould release minute spores that are invisible to the naked eye and if inhaled, they can lodge in the lung tissue and cause respiratory infections.

Breathing conditions such as:

  • Cough and shortness of breath
  • Risk of airway infection, such as aspergillosis
  • Allergic airway diseases like rhinitis, asthma and other respiratory conditions
  • Chronic obstructive pulmonary disease

Other health risks

These include eye irritation, conjunctivitis, eczema and itchy skin irritation; those with a weakened immune system are more prone to contracting illness and disease. Young and elderly people are most at risk, as are those with pre-existing health issues; if you suspect damp and mould are present in your home, we are ready to carry out a thorough inspection and should we find any damp or mould issues, we recommend remedial work and issue an all-inclusive quote.

Preventative measures

There are some things that you can do to reduce the risk of damp and mould, such as:

  • Generate a good airflow by opening windows and using extractor fans – Open bathroom windows after taking a hot bath or shower to dissipate condensation and excess moisture; do the same in the kitchen when you are cooking.
  • Heat the whole house – This dries out the air, which, in turn reduces the risk of damp and mould. Of course, energy is not cheap these days and you might be reluctant to heat rooms that you are not using, but you should centrally heat the whole house for a few hours every couple of days.
  • Wipe condensation – Leave a dry cloth by each window and mop up the water, which prevents condensation from taking hold.

At London Damp Specialists, we offer a wide range of damp proofing solutions and when you order a damp and mould survey, we issue a detailed report that includes recommended work.

We are proud to offer our customers a comprehensive 30-year guarantee; should you find damp issues after the work is completed, we will carry out repairs at no cost to you.

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.

Add to Survey

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.

Add to Survey

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

A damp meter

A 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.

Inspection Drone

Inspection Drone

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 Swab Test Kit

Mould Swab Test Kit

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.

Plaster Salt Analysis Lab

Plaster Salt Analysis Lab

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.

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