Basement Tanking London
Our services include providing basement tanking in London to protect your basement. Because basements are beneath the surface of the ground, moisture under the soil will try to seep in via untreated walls or floors, quickly causing the basement to become damp, mouldy, and uninhabitable, particularly in older London buildings.
Basement tanking is a means of completely sealing a basement or cellar by installing a waterproof membrane on the walls, floor, and ceiling.
Basement tanking is best applied when the cellar is being originally built (so too late for the majority of London properties) keeping the outer moisture from ever touching the inner walls. So in the case of a damp proofing an existing cellar, various layers of professional materials must be applied to seal the basement, this process often includes the removal of some existing layers.
Watch this video to find out more!
Understanding Basement Tanking
Basement or cellar tanking is a waterproofing treatment in which an additional coating is added to the inside or outside of a basement. This additional layer is specifically designed to ensure water can’t enter the room. Even if we aren’t using the basement, it is essential to keep it dry. Without properly waterproofing a basement, moisture can cause much bigger problems for the rest of the property.
Types of Basement Tanking
When people talk about basement tanking, they are likely to mention type A, B, or C. These are the three primary methods used. Type A is a barrier protection, Type B is a structurally integral protection, and Type C is a drained protection.
Type A – This is the most common solution to water sealing a basement. It involves applying a waterproof barrier, such as a slurry or membrane, to the interior or exterior of your basement. If you own a slightly older property in London, this is the most likely solution for you.
Type B – This is when builders use waterproof materials in the structure itself. It is aimed at ensuring dampness won’t reach the basement in the first place. Usually, this will be carried out when the property is being built, but it can be added later on, as long as the property isn’t too old.
Type C – This method uses cavity drainage systems that manage any water ingress that makes its way through. If wall tanking isn’t enough, this system collects water and takes it away through a drainage pipe or pump.
All of these methods are great ways to prevent water from entering your basement. Depending on the severity of the water ingress, property type, and mould in your house, we will decide on the best tanking system for you. Remember, getting us over to give your property a comprehensive assessment is always free, so take advantage of our service and get the guidance you need to enhance the value of your property.
Basement Waterproofing London
Many properties in London require basement waterproofing if they have, or plan to build:
- Below ground car parking facilities
- Wine cellars or storage facilities
- Coal and fuel storage bunkers
- Space for buried heating systems
- Space for air conditioning systems
- Vehicle maintenance pits
We can assist with new builds or apply specialist treatments and coatings to existing basements that are already experiencing damp issues.
You could also need help with:
Cellar Tanking London
If your basement is showing any signs of damp you will be well aware how unattractive it looks but it can also give rise to unhealthy mould spores. Mould can negatively affect respiratory systems and contribute to conditions such as asthma, plus damp basements generally become unusable for storage due to the steady destructive effects of persistent moisture.
If left untreated, basement damp can spread up to the above-ground areas of the property, or cause structural damage to access areas.
Waterproofing your basement walls is a cost-effective strategy that can help save the structural integrity and maintain the value of your property. With the right tanking system, you will have immeasurable peace of mind. Not only that; you will also add space to your home or property. Whether you plan to use it for storage or open a room to a tenant, our basement tanking systems are the ultimate choice.
If you are concerned about water ingress and would like to see if our basement tanking service is for you, what are you waiting for? We offer a 30-year guarantee with every job we carry out, so you can’t go wrong. As London’s premier waterproofing experts, we are confident we can get your property sorted!

Reliable Guarantee

Rapid Diagnosis

Onsite Estimates

Transparent Pricing

Trusted Provider
FAQ's
Post-tanking maintenance is generally minimal but may include regular inspections to ensure the waterproof barrier remains intact. Any signs of wear or damage should be addressed promptly to maintain the effectiveness of the tanking.
Here at London Damp Proofing, we have a track record of delivering quality jobs with a 30-year guarantee and will send someone round to carry out a rapid diagnosis and provide an estimate, with transparent pricing part of our promise. We can find solutions for any damp-related issues.
There is a range of materials that can be used to do the job, depending on the requirements. Sometimes it might be waterproof membranes or cementitious slurry. On other occasions, bitumen-based coatings have been known to be the most suitable solution.
No. While older buildings might be more susceptible to damp and flooding through natural ageing, there is no discrimination as to how old they must be. Tanking can be added during the construction phase of a new building or added to an older property.
It most certainly does. Anyone looking to sell their home can add huge value to the property when asking for the right price, as they can show prospective buyers the work that they have had done along with a guarantee that they won’t have any damp issues in their basement.
It is more common for basement tanking to be done externally to add protection. However, as you’re aware, properties in London are often in confined spaces, which means that on occasions, the tanking will be done internally. The same quality job is guaranteed when you call 020 7593 8030 and allow us to take control of the situation.
Indeed, it is. We use the latest high-tech equipment and embrace technology and any new methods that become available, as well as using the best materials so that the tanking lasts, which is backed up by our 30-year guarantee.
No. Basement tanking is how we tackle water coming in from the outside, leading to penetrating damp, whereas damp proofing is protection against rising damp. We can provide you with both solutions depending on the results of our survey.
How can London Damp Proofing help?
We have many years professional experience in damp-proofing below-ground living and storage areas around London. We don't believe in doing a mediocre job.
Our experienced basement damp proofing team can survey your property and offer a no-obligation quote for a professional basement tanking system.
Just get in touch via our contact form below and we we arrange a time to visit that works for you.