Damp and Mould: Essential Health Risks You Should Know

One of the joys of living in the UK is the wet weather and this year so far, we have had more rain than usual with very little sun. Aside from making us all miserable, the inclement weather is the ideal environment for damp and mould and this has health implications, which we highlight in this blog.

Respiratory issues

As you would expect in a humid environment, mould grows and mildew forms on the window frames, which releases spores into the air, making for a very unhealthy environment for all the occupants. Damp and mould produce allergens and spores that affect a person’s breathing, which can be fatal if not treated. Prolonged exposure can lead to asthma and other lower respiratory diseases; if you notice a musky smell around your home, now is the time to call London Damp Specialists on 020 8528 3864 and order a homebuyer damp survey.

Allergies & skin conditions

Skin rashes and eczema are aggregated by humid living space, while pathogens become airborne; respiratory infections are common in the winter months, while summer isn’t much different, aside from the temperature! It isn’t uncommon for one family member to start itching, which is likely caused by a damp bedroom and a survey reveals numerous damp issues that need immediate attention.

Mental health

Living in a damp environment can cause you to feel lethargic and depressed; if you don’t feel your best, take a look at walls, floors and ceilings, looking for damp patches and check all timber windows and doors, looking for signs of decay and mould. People who live alone in basements are most at risk, when damp takes hold, the change is subtle and if you are not observant, you can easily miss the signs. Weeks turn to months and if the flat has poor ventilation, mould and mildew will grow.

Damp prevention solutions

In order to prevent rising or penetrating damp, we recommend the following:

  • Provide adequate ventilation – Either natural or mechanical, your home should be well ventilated with an effective airflow.
  • Inspect the roof – You could get the ladders out but we recommend contacting a local roofer who offers a roof inspection, which includes checking for missing roof tiles, cleaning out the guttering and checking for leaks. More often than not, the tradesman recommends remedial work, which should be done in a timely manner. Blocked guttering will send water seeping down the exterior walls, which is a recipe for penetrating damp and the mould will follow.
  • Heat the house – There are rooms that you rarely use and it makes sense to turn off the radiators in those rooms, to conserve energy, yet it wise to heat all rooms every day or two for at least 2-3 hours, which dries out the air and damp cannot evolve.

Instances of poor health due to damp and mould in the home are on the rise and if you suspect your home might have moisture issues, contact London Damp Specialists by filling out the online form or call 020 8528 3864 and arrange for a qualified damp surveyor to visit your home.

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:

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:

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: