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Basement Tanking


Basement tanking refers to the process of creating a waterproof barrier around the walls and floor of a basement. Basement tanking specifically refers to the process of creating a watertight 'tank' or barrier around the basement, usually on the inside. This involves applying a waterproof membrane or coating directly to the interior surfaces of the basement walls and floor. The tanking material forms a continuous, impermeable layer that completely seals the basement from water. Tanking is often used in situations where external waterproofing is not possible or practical, such as in older buildings or in urban environments where access to the exterior of the basement walls is limited.


We provide a basement tanking service. This includes tanking existing basements and new builds. Our highly-experienced team at RJ Evans cover all of London and the South of England, and are fully accredited waterproofing specialists.

If you would like a quotation or any information about basement tanking please get in touch with us or call us now on 01277 375 511.

What is Basement Tanking?

Basement Tanking is the application of a waterproofing liquid membrane or coating to the inside or the outside of a structure. This is done to waterproof the structure. Once in place the basement will become watertight. This is known as ‘Type A’ waterproofing.

Advantages of Basement Tanking

• Reduce the cost of insurance claims. Water damage is responsible for approximately 20% of all insurance claims.

• Prevent the occurrence of Basement Flooding

• Healthier Environment to Live In. The reduction of moisture in your basement area makes it harder for the growth of mould and mildew.

• Lower Heating Costs due to the waterproofing reducing humidity levels in your property.

• Basement Floor is protected from cracks occurring due to ground water swelling up.

• Prevents Structural Damage occurring due to water seeping into the foundations of your property and buckling your walls.

How Much Does Basement Tanking Cost?

The cost of tanking a basement will depend on several things:

• The complexity of tanking the basement.

• The tanking system which is being installed.

• The size of the basement.

• The ease of accessing the basement.

An average basement will cost in the region of £60 to £70 per squared.

Why Choose RJ Evans For Basement Tanking

• Vastly experienced waterproofing team. We have operatives with more than 40 years’ experience.

• We provide a range of FREE quotations and solutions for all projects.

• Insurance backed Guarantees.

• Excellent Customer Support throughout project.

• Rated 5 out of 5 from our previous customers.

Get In Touch With RJ Evans Today

If you would like a quotation or any information on Basement Tanking please get in touch with us or call us now on 01277 375 511.