
Damp proofing service
Basement Tanking
Turn a damp cellar into dry, usable space with the right waterproofing system.
Get a quote for basement tanking
A free, no-obligation survey and a written quote.
Damp proofing
A dry basement you can actually use
Cellars and basements sit below ground, so water in the surrounding soil is constantly pressing against the walls and floor. Without waterproofing that moisture comes straight through, which is why so many basements smell musty and cannot be used for anything that matters.
Tanking solves this by creating a waterproof barrier. Depending on the room we either apply a cementitious tanking slurry directly to the walls and floor, or fit a cavity drain membrane that channels any water away to a drainage point. We survey the space, explain which system suits it and provide you with a written quote. Done properly, tanking turns a damp cellar into dry, useful space you can convert or live in.


What's included
What the work covers
Every quote varies depending on the property and what the job needs, but here is what a typical basement tanking job with us covers from start to finish.
- A survey of the below-ground walls and floor
- Cementitious tanking or cavity drain membrane
- Drainage and sump provision where required
- Preparation of walls ready for finishing
- Advice on converting the space
How we do it
The typical process
Step 01
Survey
We assess the water pressure, condition and how you want to use the room.
Step 02
Choose the system
We recommend tanking slurry or a cavity drain membrane to suit the basement.
Step 03
Prepare and apply
Surfaces are prepared and the waterproofing system is installed.
Step 04
Ready to finish
The room is left dry and prepared for you to decorate or convert.
Book a free basement tanking survey
Tell us what you have noticed and we will come out, find the cause and provide you with a written quote with no obligation.
The quote
Basement Tanking costs
Every property is different, so we quote each job on its own after a free survey rather than off a description. These are the things that move the figure, and we set it all out in writing before any work starts. The visit is free.
- The size of the basement or cellar
- Whether tanking slurry or a membrane system is used
- Whether drainage and a sump pump are needed
- The condition of the existing walls and floor
Areas covered
Basement Tanking across Hampshire
- Southampton
- Winchester
- Basingstoke
- Andover
- Romsey
- Ringwood
- Gosport
- Fareham
- New Forest
Related services
Common questions
Basement Tanking questions
Can any cellar be tanked?
Can I convert the basement into a room afterwards?
Will a tanked basement need a pump?
How long does basement waterproofing take?
Is the waterproofing guaranteed?
Get a quote for basement tanking
A free, no-obligation survey and a written quote.



