LONDON DAMP SPECIALIST

  • Low fixed price for all surveys
  • Fast response times
  • Next-day property visits available*
  • Qualified damp surveyors
  • Damp surveys only £240 inc VAT
*subject to availability/location

Homeowners in London can rest easy knowing that their homes are damp-proofed with the help of London Damp Specialist. With over 35 years of experience, our team is dedicated to providing quality surveys and peace of mind.

London Damp Specialist is a family-run business that provides a comprehensive home damp survey. We provide homebuyer damp surveys to clients throughout London.

Our surveys can help you identify the cause of all problems, including:

  • NRising damp
  • NCondensation
  • NBasement damp
  • NTimber rot
  • NMould
  • NPenetrating damp

At London Damp Specialist, our prices are really competitive, and our damp surveyors strive to work quickly to carry out the damp survey, so you can get it treated as soon as possible.

Our damp surveyors provide and carry out damp surveys in London and around the M25. We have many years of experience offering damp surveys in areas such as Islington, Chelsea, Stratford, Fulham, Camden, Richmond, Kensington, Wimbledon, Dulwich and Finchley.

If you allow damp to fester, damp will damage the structure of your property, cause extensive problems, and lower the value of your home.

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Efficient

I had a damp and timber survey done very pleased with the service quick turn around on the survey report.

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Very impressive

Brilliant service, very thorough inspection and report which came in very useful with negotiations when buying our flat received the report the same day which was great.

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Highly recommended

Great detailed pre-purchase damp report on our first property found lots of hidden issues saving us thousands.

Don’t wait for the problem to get worse – call us now and our damp survey will help you stay ahead of any potential issues in your home.

What are you waiting for? Call us on: 0207 305 5997.

RISING DAMP

Rising damp occurs when retained moisture in the walls evaporates leaving behind soluble salt marks.

CONDENSATION

Condensation is caused due to poor heating and ventilation and makes for an unhealthy home

BASEMENT DAMP

A system that helps keeps a basement or cellar free from water is better know as basement tanking.

DAMP FLOORS

We cater to any type of damp problems including dry rot, wet rot, wood worm and penetrating damp

TIMBER ROT

Wood rot can spread undetected and can become a major problem if not detected and treated early.

MOULD

Mould thrives in wet environments, so any place with poor drainage or high humidity is susceptible.

OUR PROCESS

1

Phone/contact us

2

Callback with expert

3

Visit property

4

Analyse damp situation

5

Same-day report

6

Help finding suitable contractor (if needed)
  • Unchecked damp can wreak havoc on your property, resulting in structural damage that decreases the value of your home. To protect yourself from such costly repercussions, it's important to take preventative action against developing moisture issues promptly.

DAMP TREATMENTS:  LONDON HOMES

The geology of lots of areas of London is made up of clay, making them susceptible to flooding. This means that many flats in basements / cellars often require damp proofing or tanking to make them liveable.

Not only can dampness in your home cause respiratory and immune problems, but it also reduces your home’s value and becomes increasingly unsightly the longer the problem persists.

With a quick diagnosis and the proper treatments, such as damp proof course injections (DPC injections), the root problems can be solved and any structural damage could be repaired.

HOW CAN I GET HELP?

To get help, call London Damp Specialist on 0207 305 5997.

Or, feel free to send an enquiry or book a survey online.

If you submit an enquiry form, one of our damp surveyors will be in touch with you to discuss your problems. We aim to contact you within 24 hours.

  • There could be health implications associated with damp such as those caused by mould and dust mites, which can trigger allergies or aggravate pre-existing medical conditions.

Respect

At our company, we understand how important it is for your property and personal items to be respected.

Understanding

We set clear expectations, so you know exactly what to expect from our damp survey.

Punctual

It’s important to be timely and punctual, which is why we agree on a realistic and suitable timescale that works with our customers’ schedules to ensure they get their surveys booked at their earliest convenience.

Quality

We only use surveyors with many years of experience, ensuring our customers have the best service possible.

Case Studies

Our Equipment

Damp Meter

Damp Meter

Purpose:

Takes comparative surface moisture readings across accessible walls, floors, ceilings and building joinery.

Common Uses / Notes:

Maps surface moisture profiles to help identify rising damp, penetrating damp, condensation, or active plumbing leaks.

Deep-Penetration Damp Meter

Deep-Penetration Damp Meter

Purpose:

Detects moisture changes deep below the immediate surface of structural materials without destruction.

Common Uses / Notes:

Evaluates dampness within wall cores, beneath floorboards, inside subfloors and behind finishes without removing plaster.

Non-Invasive Moisture Scanner

Non-Invasive Moisture Scanner

Purpose:

Scans surface planes non-invasively without inserting pins or probes into decorated finishes.

Common Uses / Notes:

Checks decorated walls, tiled surfaces and delicate floor coverings to trace sub-surface water migration non-destructively.

HD Borescope Inspection Camera

HD Borescope Inspection Camera

Purpose:

Provides high-definition visual examination inside enclosed, narrow, or inaccessible building cavities.

Common Uses / Notes:

Inspects subfloor voids, wall cavities, dry lining and enclosed pipework to locate leaks and defects with minimal disruption.

4K Inspection Drone

4K Inspection Drone

Purpose:

Captures high-resolution imagery and video of high-level external structures and rooflines.

Common Uses / Notes:

Inspects roof tiles, chimney stacks, lead flashing, parapet walls, valleys and gutters to locate water ingress sources.

Air Humidity Sensor

Air Humidity Sensor

Purpose:

Measures ambient air temperature and relative humidity (%RH) levels within living areas.

Common Uses / Notes:

Determines whether atmospheric moisture, cold bridging, or insufficient ventilation supports surface condensation and mould growth.

Thermal Imaging Camera

Thermal Imaging Camera

Purpose:

Visualises surface temperature differentials across walls, ceilings and floors.

Common Uses / Notes:

Detects cold spots, missing insulation, thermal bridges, evaporative cooling zones and concealed water leaks.

Airflow & Ventilation Detector

Airflow & Ventilation Detector

Purpose:

Measures volumetric air extraction performance (L/s or m3/h) of mechanical extractor fans.

Common Uses / Notes:

Tests kitchen, bathroom and utility fans to verify compliance with UK Building Regulations Part F and control condensation.

Gas Screening Instrument

Gas Screening Instrument

Purpose:

Screens indoor environments for sewer gas intrusion, combustible gases and combustion concerns.

Common Uses / Notes:

Traces foul odours, soil stack leaks and sewer gases (H2S, NH3, CH4, CO, O2). Does not replace Gas Safe registered safety checks.

Chemical Vapour Detector

Chemical Vapour Detector

Purpose:

Screens air for Volatile Organic Compounds (TVOC/VOC) and chemical substances like formaldehyde (HCHO).

Common Uses / Notes:

Investigates unexplained chemical odours, building material off-gassing, post-flood air safety and indoor air quality.

Airborne Particle Detector

Airborne Particle Detector

Purpose:

Measures airborne particulate concentrations across precise micron size ranges (PM1.0, PM2.5, PM10).

Common Uses / Notes:

Assesses fine dust, smoke, airborne matter and environmental air quality following water damage or mould outbreaks.

Electrical Socket & RCD Tester

Electrical Socket & RCD Tester

Purpose:

Provides basic safety and protective circuit screening in areas affected by dampness.

Common Uses / Notes:

Identifies socket wiring faults, tests RCD trip functions and checks AC voltage in wet areas. Does not replace an EICR.

Survey Levels & Package Specifications

Level 1

Standard Damp Survey

Standard price: £299 + VAT

Promotional Price: £199 + VAT (Limited Time Offer)

The Level 1 Damp Survey is a basic damp inspection designed to check the main accessible areas of the property for damp, leaks
and visible moisture-related issues.

Equipment provided

  • Damp meter

Inspection coverage

  • Inspection of walls
  • Inspection of floors
  • Inspection of ceilings
  • Leak inspection of drains and plumbing
  • Damp information and prevention guide

Who should choose Level 1?

This survey is best for customers who need a basic damp check where only a damp meter is used. It is most suitable for simple

damp concerns, such as suspected rising damp, visible damp patches, minor moisture concerns or a general check of accessible
areas.

The Level 1 Damp Survey is suitable where the customer wants a straightforward inspection of walls, floors, ceilings, drains and
plumbing without the use of advanced survey equipment.

Level 2

Detailed Damp & Timber Survey

Standard price: £399 + VAT

Promotional Price: £299 + VAT (Limited Time Offer)

The Level 2 Damp Survey includes everything in the Level 1 survey, with additional timber decay inspections and deeper
moisture testing.

Equipment provided

  • Damp meter
  • Deep-penetration damp meter for all building materials
  • Non-invasive moisture detection equipment

Inspection coverage

  • Inspection of walls
  • Inspection of floors
  • Inspection of ceilings
  • Leak inspection of drains and plumbing
  • Dry rot inspection
  • Wet rot inspection
  • Woodworm inspection
  • Deep moisture detection in building materials
  • Non-invasive moisture testing under floorboards and subfloors where accessible
  • Damp information and prevention guide

Who should choose Level 2?

This survey is best for customers who need a damp and timber inspection. It is suitable where there may be concerns about damp,

wood rot, dry rot, wet rot, woodworm or moisture hidden behind building materials.

The Level 2 Damp Survey uses equipment that can read deeper into building materials, including areas such as subfloors, under
floorboards, behind panelling and other accessible hidden areas. This allows us to get a better understanding of whether there may
be hidden damp within the property without dismantling or damaging materials.

This survey is very suitable for home buyers and sellers who want a more detailed damp inspection before purchasing or selling a
property.

Specialised Laboratory Diagnostic Add-Ons

Laboratory Analysis of Plaster Samples
Add-On 1

Laboratory Analysis of Plaster Samples

Price £299 + VAT

Small plaster samples are carefully taken from affected walls and submitted to an independent laboratory for salt analysis. The laboratory tests for the presence and precise concentration of hygroscopic salts, including nitrates and chlorides.

Diagnostic Value: Soluble ground salts are drawn up through masonry during rising damp and remain in plaster permanently. Salt analysis scientifically differentiates true rising damp from condensation or historic leak contamination.

Note: Plaster sampling requires minor material removal and is our only add-on involving minor invasive work.

Mould Laboratory Testing & qPCR DNA Analysis
Add-On 2

Mould Laboratory Testing & qPCR DNA Analysis

Price £299 + VAT

Surface swab or lift samples are submitted to an accredited laboratory for advanced qPCR DNA analysis.

Diagnostic Value: Accurately identifies exact mould species, measures contamination concentrations and detects hidden fungal growth inside cupboards or behind dry lining. Delivers impartial scientific evidence to guide safe environmental remediation.

Gases, Chemical Vapours & Airborne Particle Testing
Add-On 3

Gases, Chemical Vapours & Airborne Particle Testing

Price £299 + VAT

Comprehensive environmental air quality and gas screening tailored to specific property concerns.

Screening Suite Includes: IAQ air quality assessment, Volatile Organic Compounds (TVOC/VOC), Formaldehyde (HCHO), Particulate Matter (PM1.0, PM2.5, PM10), Sewer Gases (H2S, NH3, CH4), Combustion Gases (CO, O2) and ventilation performance.

Diagnostic Value: Air quality issues are often linked to damp, leaks and mould, but they cannot always be identified by a visual inspection alone. This testing helps detect hidden airborne contaminants, gases, chemical vapours and fine particles that may affect the property’s condition and indoor environment. It can also help identify problems such as poor ventilation, sewer gas ingress, off-gassing from building materials, combustion-related gases, or airborne particles following water damage, providing a more comprehensive understanding of the property’s condition.

It is also useful where a property has persistent unpleasant or unexplained odours. The testing can help investigate foul smells caused by damp, water damage, stagnant water, drains, sewer gases or chemical vapours, allowing the source of the odour to be identified more accurately.

Testing includes:

  • Indoor Air Quality Testing- IAQ
  • Volatile Organic Compound Testing- TVOC / VOC
  • Formaldehyde Testing- HCHO
  • Fine Particulate Matter Testing- PM1.0 / PM2.5 / PM10
  • Dust and Smoke Particle Testing- PM1.0 / PM2.5 / PM10
  • Sewer Gas Testing- H2S / NH3 / CH4
  • Gas Leak Screening- CH4 / C3H8
  • Carbon Monoxide Testing- CO
  • Hydrogen Sulfide Testing- H2S
  • Ammonia Odour
  • Testing- NH3
    Oxygen Level Testing- O2
  • Ventilation / Stale Air Assessment- IAQ / TVOC
  • Drain Smell Investigation- H₂S / NH3 / CH4
  • Chemical Odour Investigation- TVOC / VOC / HCHO / NH3
  • Post-Leak Air and Surface
  • Condition Assessment- PM2.5 / TVOC
  • Combustion Gas Safety Screening- CO / O2 / CH4
  • Building Material Off-Gassing Assessment- TVOC / HCHO
  • Airborne Pollutant Screening- PM1.0 / PM2.5 / PM10 / TVOC