Damp Check: The Importance of Regular Home Inspections

Let’s face it, your home is probably the biggest single investment you have made to date and building maintenance is part and parcel of home ownership. The importance of regular inspections cannot be overstated; smart homeowners ask a local roofing company to carry out a detailed inspection, which comes with a written report on the status of the roof. As the roof cannot be seen from the ground, it makes sense to ask a tradesman to carry out a visual inspection, which would include checking for missing or broken roof tiles, cleaning out of guttering and a close look at the fascia and soffit boards.

Penetrating damp

Thanks to the wet UK climate, a lot of properties are at risk of penetrating, or rising damp, when moisture from the ground comes in contact with the building foundations, which can cause thousands of pounds of damage. At London Damp Specialists, we have a range of damp surveys, from a free damp check that includes a quote for recommended work, to a thorough, independent damp survey that includes testing plaster for signs of moisture.

Proactive building maintenance

Rather than waiting for signs of property damage, be proactive and arrange regular inspections; early detection can literally save you a fortune of building repairs. Penetrating damp can infect old and new properties and without carrying out moisture tests, you won’t know whether dampness is damaging your home. If the survey reveals damp damage at an early stage, you have remedial work done there and then, which should resolve the issue.

Causes of penetrating damp

Penetrating or rising damp can be caused by the following:

  • Defective guttering
  • Cracks in masonry and rendering
  • Brickwork damage
  • Poor quality mortar and bricks
  • Blocked drainage systems

There are other potential causes of penetrating damp, while extended periods of heavy rain can accelerate damp issues.

Homebuyer damp survey

If you are looking to buy a property in London, it makes sense to have a few tests carried out by industry professionals.

There are three types of homebuyer damp surveys to choose from;

  • Level 1 survey – A close inspection of all external and internal walls and floors, looking for signs of dampness & leakage.
  • Level 2 survey – This includes everything in level 1, plus a detailed inspection of all timber structures, looking for woodworm, dry and wet rot.
  • Level 3 survey – Includes level 1 and 2, plus thermal imaging, air humidity measurement, borescope cameras and a ventilation flow test.

There is an add-on service that tests for moisture in plaster, which is an additional cost to the survey.

Annual damp surveys

The majority of UK property owners choose to have the home checked for the presence of damp every year and should moisture be present, the surveyor can recommend a solution to nip it in the bud, so to speak. When the signs of timber rot are detected, the damage has already been done and regular inspections ensure that you have an up-to-date report on the structural integrity of the property.

Call us on 020 8528 3864 and book your survey now.

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.

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Book and Pay for a survey

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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: