Basement Waterproofing London
We design watertight solutions to protect basements from excess moisture.
Basements and cellars are usually situated either entirely below ground level or at least partially below the ground. To avoid basement damp, the area must be kept at a consistent temperature and have some type of ventilation.
External basement tanking systems are normally put in when the cellar is first built. An allowance needs to be made for water to be kept away from where the walls meet the floor, since this is a weak spot.
Watch this video to find out more!
What is Basement Tanking
The concept of basement tanking is pretty simple. It involves applying a membrane or additional layer to the basement walls to prevent moisture and water from entering the habitable space. This can be done on the inside or outside of the basement, depending on what type you have. These membranes act as watertight barriers to prevent water ingress. As basements are below ground, mould prevention is critical. These living areas are highly susceptible to moisture and mould, but with the right basement tanking solution, you can increase the value of your property and open up a space for a tenant, guests, or to simply hang out.
Types of Basement Tanking
There are two main types of basement or cellar tanking: cementitious and membrane. Cementitious tanking uses a formulated mixture that is applied to the walls and floor of a basement, creating a water-tight barrier. This method is often used in slightly older homes. Tanking membranes involve applying a waterproof membrane that fulfils a similar purpose. Though these are the most common types of basement tanking, it may be necessary to use others. This could include exterior waterproofing, where a membrane is applied to the outside of the basement with a drainage system, a cavity drain waterproofing system which involves creating a cavity between the wall and the membrane for water to flow away, or we may need to use pumps to remove water that has accumulated over time.

Do I need Basement Tanking?
Of course, waterproofing basements isn’t always necessary, and your needs will be unique to what you plan to do with your space. If you own an older property in London and plan to use your basement, it is likely you will need to take specific measures. To give you an idea, commercial and residential customers may require basement waterproofing if they have:
- Underground Car parking
- Wine storage facilities
- Coal storage facilities
- Storage of any type of materials
- Space for a Heating system
- Space for an Air conditioning system
If you are planning to renovate a basement for any purpose but aren’t sure if basement tanking is needed, there is no harm in reaching out to us to give it a once-over. Our team will be happy to assess your cellar situation and give you the best possible advice.
Choosing the right basement damp proofing service
The sort of basement damp proofing needed hinges on the kind of basement.
Types of London basements:
- Part of the floor could be lower, allowing for the actual basement area, and part of the floor could be higher.
- Look-out basements have basement walls that extend above the ground level.
- Walk-up basements have external entries via staircases with basement doors.
- Underground crawl spaces are a type of basement where you cannot stand upright, usually for storage.
In all these cases, facilities would have to be in place to prevent damp problems occurring in the future.
Whatever type of basement your property has, there is no reason why you shouldn’t make the most out of it. Contact our waterproofing specialists to identify areas of concern and ensure nothing stops you from enjoying your basement. Not only will basement tanking prevent structural damage in your home or business, but it will also add to the value of your property while creating a comfortable and versatile space that you can use for anything.
How much is basement tanking?
There are many types of basements and therefore different basement tanking is needed depending on requirements. Our expert team would Our experienced team has to go to your particular location to figure out the best option for your basement.
Whatever type of basement or cellar you have in your home or commercial building, contact our experienced staff at London Damp Proofing Ltd. We will easily be able to assess what basement tanking system needs to be incorporated into your property.
We provide no-cost, no-obligation quotations, which are fully covered by insurance, and offer competitive costs.
Testimonials
Damp proofing & replastering
James was punctual and professional and has done a great job on our flat. He is easy to contact and the work we had done was good value.
Damp patch on inside of external wall
James was really efficient and easy to work with. He suggested a not too expensive solution and carried out the job within a few days. We have high hopes the problem is fixed and would definitely recommend James to others
Damp proof outside wall
James was very professional and did a quick job. He also cleaned up after himself which I was grateful for. Thank you.
Penetrative damp problem
James was very efficient and considerate. Prompt response to job, organised to come round to view the problem on the weekend, gave a written quote and then carried out the work diligently. Time will tell if the damp problem is gone but for now I would recommend him.
Sudbourne Road damp
James was reliable, worked fast and tidied up well afterwards. He did a neat job and we were very pleased with the results. He even repaired some other holes in the plaster in another room as a bonus for no extra charge. We would happily use him again and have no hesitation recommending him.
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