Independent Damp Surveys in London

Recognised as One of the Best Damp Surveying Companies in London.
  • PCA Registered Surveyors
  • Qualified to industry standards (CSRT & CSSW)
  • Public liability limit of indemnity £5 million

Trust London Damp

We are a Chartered Building Company, Full members of the BWPDA (British Wood Preserving & Damp Proofing Association), PCA (Property Care Association), CHAS and the Guarantee Protection Trust.

Independent Damp Surveys in London

At London Damp Specialists, we have been surveying London homes since 1981, helping property owners identify damp, mould, condensation and timber rot. Our independent damp surveyors are fully certified and have years of hands-on experience, we are proud of the services we offer London homeowners to combat all forms of damp, mould and timber rot.

London and the Southeast sit on the Thames Valley basin, which has layers of clay and that is bad news for London home and business owners. Add to that the fact that rainfall is increasing, which is likely due to global warming and this brings a high demand for damp proof specialist companies that carry out independent damp inspections in London.

We cover all London Boroughs within the M25 and if you are looking to make an offer on a London property, or you are soon to put your London home on the market, we recommend having the building inspected for damp, mould and timber rot by one of our experienced independent damp surveyors. This is the only way to be sure that the structure is damp-free and should there be issues, better to know before you make an offer rather than after you become the new owner and move in. Damage caused by damp can easily be concealed with a little plaster and paint; our independent damp surveyors in London use state-of-the-art digital equipment to identify and measure moisture content within a building and the customer receives a detailed report that covers all aspects of damp, mould and timber decay within 24 hours of survey completion.

Damp proofing gallery

We focus on looking for the following:

  • Rising damp – Ground moisture rises up the walls, usually due to damaged DPC.
  • Penetrating damp – Moisture enters the building via the roof or exterior walls.
  • Condensation – Droplets of water form on hard surfaces
  • Wet and dry rot – Destructive fungi that eat away at timber, both thrive in humid conditions.
  • Woodworm – Two types of beetle are found in London, which burrow tiny holes in wood and when the eggs hatch, the larvae consume wood pulp.
  • Basement tanking – Below-ground living space is at high risk of rising damp and mould; our surveyors are trained to inspect every square inch of a basement to give an accurate assessment. It is crucial to trace the origin of the damp, which leads to the correct damp-proofing. We have connections with an established company that offers basement water-proofing in London.

We provide independent damp surveys for London homeowners and we have a working relationship with top damp-proofing specialists; should your London home require damp-proofing.

Areas in London we cover include Fulham, Chelsea, Kensington, Camden, Wimbledon, Dulwich and Islington; all areas within the M25 come under our umbrella.

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Securely book your damp survey online in minutes.

Reports

Your full damp survey report is delivered within 24 hours.

Money-Back Guarantee

If we are unable to identify the cause of the damp, you’ll receive a full refund.

Independent Damp Survey

We offer independent damp survey services, which are as follows:

Level 1 Damp Survey

A thorough inspection of exterior and interior walls, floors, and ceilings to identify tell-tale signs of rising or penetrating damp.

The survey includes damp detection and inspection of all walls and floors, as well as leak inspection of drains and water pipes to locate possible sources of moisture. Designed for buyers and sellers, it determines the presence of damp, mould, and timber rot.

£199 + VAT

Level 2 Damp Survey

Everything included in Level 1 plus a closer examination of structural components such as joists, rafters, window frames and door frames.

The surveyor also carries out a detailed dry/wet rot and woodworm inspection to identify any timber decay. If issues are found, we can recommend a trusted London damp-proofing contractor to carry out the required work.

£299 + VAT

Level 3 Damp Survey

Our most comprehensive survey. Level 3 includes everything from Levels 1 and 2 plus an advanced set of diagnostic tests.

This survey uses thermal imaging and air humidity testing to identify hidden moisture issues, along with an HD borescope camera for checking loft spaces, cavities and other hard-to-reach areas. We also carry out a full brickwork pointing inspection, DPC inspection, and a ventilation flow test on extractor fans to assess airflow and mould risk. For external parts of the property, we include 4K drone imagery to inspect the roof, chimney stack and guttering safely and in high detail. All Level 3 surveys are non-invasive and cause no damage to the property.

£399 + VAT

Plaster Analysis

An additional service we offer is up to 10 samples of interior plaster, which we test for moisture content to give you a definitive assessment.

This is the best way to accurately measure moisture content within walls; results come through quickly and are part of a detailed report that would include images and maybe video.

£299 + VAT

Mould Lab Swab Testing

We offer professional qPCR mould swab testing, which analyses DNA from a surface swab to detect and quantify specific types of mould present within the property (up to 100 square metres).

This laboratory-grade test provides highly accurate results and is ideal for confirming the presence and severity of mould growth.

£299 + VAT

If you would like to book an independent damp survey in London, call us on 020 8945 5547 or fill in the form below and one of our certified damp surveyors will arrange to inspect your home.

Request a Survey
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Respect

We respect your property and belongings and take pride in ensuring a clean and habitable working environment for our customers.

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Understanding

The provision of a clear specification of works ensures both we and the customer understands what is expected from the outset.

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Timely

We agree realistic, suitable and appropriate timescales that work with our customers' schedules to ensure that we complete on time.

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Quality

We listen to our customers. Our trades people have many years’ experience and our directors visit sites regularly to maintain our brand and vision.

Digital Equipment We Use

Our independent damp surveyors are CSRT & CSSW certified and they use a wide range of tools and equipment.

  • Damp meter – This handy device comes in pinned and pinless types; the pins are inserted into building materials such as timber, plaster and render. Our surveyors use both types to accurately measure moisture levels throughout the property; the pinless version measures moisture on surfaces. It is crucial to be able to measure and identify moisture and damp meters are essential to quickly establish humidity levels.
  • Infrared camera – Thermal imaging helps the surveyor get an overall picture of humidity levels; simply point the lens and objects on the screen are coloured, with red warmer and blue cooler. If the surveyor gets a blue reading around a window frame, this suggests penetrating damp and the inspector can investigate further to determine the origins of the moisture.
  • Drone images and video – The roof is generally inaccessible and rather than climb onto the roof, the surveyor flies their drone around the entire structure, taking images and footage if issues are discovered. Every square metre of the roof is inspected and notes are recorded. The fascia and soffit boards, guttering and chimney flashing can all be checked using a small drone.
  • Ventilation flow test – Ventilation is important to keep the interior dry and our surveyors use a hand-held digital device with a small rotary fan that measures air movement. Measuring at various locations gives the surveyor an accurate air flow measurement and recommendations can be made to boost ventilation within a London property.
  • Borescope camera – A pinhole camera with a small spotlight is a great tool to inspect dark corners and hard-to-reach places, where mould and timber rot thrive. Used to inspect under floors and throughout attics and cellars. No surveyor would leave home without this handy device, which saves time and is very thorough.
  • Hygrometer – A digital device to measure air moisture, with a few features that provide the surveyor with additional data. Measuring the humidity tells the surveyor where damp and mould are likely to be present and this is one of the first pieces of equipment to come out of the bag.

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For an in-depth survey of your property or simply to talk to one of our damp proofing specialists in London.

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