Maintaining a Wine Cellar – A London Homeowner’s Guide

Maintaining a Wine Cellar – A London Homeowner’s Guide

3rd July, 2025

Many London properties have underground living space, which is ideal for a wine cellar; lovers of fine wines can store their favourites in optimal conditions and enjoy premium wine that is stored as it should be. If you have a wine cellar, you probably know that maintenance is crucial and with that in mind, here is our wine cellar maintenance guide.

Air filter maintenance

Most wine cellars use a charcoal air filter, which helps to keep the air clean and dry; excess humidity is your enemy and you should invest in a hygrometer that measures the moisture content in the air. Too much moisture is not good and you should also invest in a portable dehumidifier that extracts moisture from the air in the cellar. The filter should be changed on an annual basis, or sooner if the filter has to work hard.

Monitoring humidity

Ideally, you do not want humidity to go below 50%, as this will dry out the corks; the optimum level is between 70 and 80%; make good use of a hygrometer and check often to ensure the humidity stays within the acceptable levels.

Dangers of mould

Mould is a very real threat in any basement or cellar; we recommend removing all wine racks every few months and cleaning the floor, while wiping down all the racks before replacing them. If you do notice signs of mould, you can contact London Damp Surveys and arrange for one of our qualified surveyors to inspect your wine cellar. The inspector can pinpoint the underlying cause of mould and mildew and recommend the correct remedial work. Of course, ventilation plays an important role in maintaining an optimum wine storing environment; correct use of extractor fans is the usual way to generate the right airflow. While mould won’t spoil your wine, it could affect labels, besides, mould is regarded as a health hazard, so do keep your eyes open looking for signs of mould and mildew.

Cleaning & emptying drip trays

Most cellars have drip trays and they need to be kept clean at all times, this is one place where mould can flourish; also clean all tubes and remove dust and dirt. Keeping everything spotlessly clean is the secret to good wine cellar management, measure the temperature accurately and employ a good thermometer.

Preventing damp & mould

These are your enemies and if you even suspect you have damp issues, call London Damp Surveys on 0207 305 5997 or fill in the form on this website and one of our certified surveyors will arrange to inspect your cellar and issue you a detailed report. There are numerous ways to waterproof a basement and our surveyors are happy to advise you accordingly; while we don’t offer damp-proofing service, we have a working relationship with the best contractors in London and they offer a 30-year guarantee on all their work.

Don’t delay, book a damp survey today!

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.

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.