Basement Tanking

If you have a basement or cellar in your London home, you already have valuable extra space beneath your feet – but only if it’s dry! Over time, damp and water ingress can make basements unusable, and lead to mould, musty odours and even structural damage. Basement tanking is the most effective way to keep your below ground spaces dry and make sure they remain safe, functional and protected for years to come.

At London Damp Specialists, we specialise in basement waterproofing solutions that are ideal for London properties. Our basement tanking options will make any basement waterproof and to prevent any damp. For example, we can fit a Cavity Drainage Membrane to effectively drain any water away from the basement; sump pumps will move water away from the property and to a storm drain; a cemented multi-coat render acts as a barrier, sealing the basement from the inside walls and preventing any water penetrating.

Why is Basement Tanking Essential?

London’s high water table and frequent rainfall means basements in the area are naturally vulnerable to damp and leaks. If your property is older, its original waterproofing may have deteriorated over time, allowing moisture to seep through the walls and floors.
Left untreated, damp can lead to:

• Mould growth, which can affect air quality and health
• Damage to walls, flooring, and stored items
• Rot and decay in timber structures
• A loss of valuable living space

Whether your basement has minor damp patches or serious flooding issues, we can assess the problem and recommend the right solution, returning your basement space to a usable space once more.

How Does Basement Tanking In London Work?

Basement tanking is a way of completely sealing the walls and floors of your basement to prevent water from entering. There are two main types of basement waterproofing and, following a survey, we’ll recommend the best system based on you and your property’s needs.
Basement waterproofing systems are either a barrier system that stops moisture, or a water management system to control and direct water away from your basement.

Barrier system:
We apply a multi-layer waterproof cement-based render directly onto the interior walls and floors. This is the physical barrier, preventing the moisture from seeping in.
The process includes:

• Removing any damp or damaged plaster
• Applying a salt neutraliser to dissolve salts left by moisture penetration
• Adding a waterproof sand and cement render
• Finishing with a smooth plaster coat for a polished, usable space

Water management system
This system controls and redirects water away from your basement. It involves:

• Fitting a Cavity Drainage Membrane (CDM), to allow water to drain behind it instead of penetrating the walls
• Installing sump pumps to remove water and direct it to external drainage
• Finishing with plasterboard or a decorative covering for a clean, modern finish

London Basement Tanking: Transform Your Basement into Functional Space

If you have a basement or cellar, you can unlock its potential and turn it into extra, usable spare footage. Whether it’s for bedroom, entertaining or storage space, we can make your basement watertight, functional and dry.

Any work we undertake will carry a degree of disturbance, but we work with minimum disruption and maximum effect, leaving you with a damp-free cellar and peace of mind with our 30-year watertight guarantee.

Get a Free Basement Damp Survey Today

If you’re dealing with damp, leaks, flooding or a musty smell in your basement, don’t wait for the problem to worsen. Call us today on 020 8528 3864 for expert advice, or book your free, no-obligation survey to discover the best waterproofing solution for your home.