Preparing Your Home for Winter Damp Issues
London property owners should always be on the lookout for damp and mould, which can attack any property, old or new. The winter is, of course, a season when dampness is more prevalent and in this short blog, we offer a few tips on how to prepare your London home for winter damp issues.
- Ventilation – Every property should be well ventilated, especially during the damp winter months; open windows regularly and keep kitchen and bathroom doors closed when condensation levels are high. If there are rooms that you don’t normally heat, turn on the radiators for a few hours 2-3 times a week, which will remove moisture in the air. Mechanical ventilation can be used with natural ventilation to create an airflow and this will greatly reduce damp and condensation.
- Penetrating damp – We haven’t seen the Sun for months here in the UK, which doesn’t help with damp and moisture and prior to the arrival of winter, you should carry out a thorough inspection of all exterior and interior walls, ceiling and floors. If you prefer, we at London Damp Specialists can carry out penetrating damp solutions that come with a quote for any necessary remedial work. We can match any survey quote and our work had a gold seal guarantee for a full 30 years.
- Condensation – It is perfectly normal for an occupied building to generate condensation, hot water and cooking adds a lot of moisture to the air; ventilation is the key. Open a few windows to create a good airflow, 30 minutes is enough to dry out the air, do this twice a week if possible and this will remove most of the moisture from the interior. If your windows have condensation issues, use a dry cloth to remove the water and do this whenever you see water. If you would prefer a professional approach, we at London Damp Specialists offer complete condensation solutions and we guarantee our work for 30 years.
- Roof inspection – Blocked guttering causes rainwater to cascade down the exterior walls, while missing roof tiles let rain into the roof structure and can damage joists and rafters. You should have your roof inspected by a local roofer; it can be dangerous to climb on a roof, especially if you are not familiar with working at height. This is not something you should overlook, a common source of moisture and damp is the roof, so make sure you ask a local roofing contractor to add you to their list of roof inspections.
- Rising damp – Your property should have a DPC membrane that prevents moisture rising into the building. The course is made from bitumen and should it be worn down or damaged, it can no longer do what it is designed to. We can carry out a thorough DPC inspection to ensure that all is well.
As soon as the summer starts to turn into autumn, this is the ideal time to call London Damp Specialists on 020 8528 3864 or fill in the form on your website and book a comprehensive damp survey.
Damp Survey Costs
Transparent pricing with no hidden fees for our independent, unbiased surveys.
Level 1
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
What’s included:
- Everything in Level 1
- Dry rot inspection
- Wet rot inspection
- Woodworm inspection
- Damp information and prevention guide
Level 3 (Most Popular)
What’s included:
- Thermal Imaging
- Air humidity testing
- HD boroscope camera
- Brickwork pointing inspection
- DPC inspection
- Ventilation flow test on extractor fans
- 4K drone imagery roof, chimney stack
and guttering inspection - Structural condition inspection
- Inspection of walls
- Inspection of floors
- Inspection of ceilings
- Leak inspection of drains and plumbing
- Dry rot inspection
- Wet rot inspection
- Woodworm inspection
- Damp information and prevention guide
Survey Add Ons
Add On 1
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 On 2
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.
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
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 is a small inspection camera attached to a flexible semi-rigid cable that allows you to see inside areas that are otherwise inaccessible.
Drone Inspection
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 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
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
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 Lab Swab Testing
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.
Lab Analysis of Plaster
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.
