Why proper tanking deserves real attention
Wet zones fully protected
We seal the areas most exposed to water before any tiling begins.
Falls built into the plan
Drainage is considered early so water moves where it should.
Finish and waterproofing align
One team controls the transition from tanking to the final tile surface.
The hidden step that protects the whole wet room
Wet room waterproofing is the stage that helps protect the room long after the tiles are finished. Water needs a sealed route away from the wet zone, and the vulnerable areas are often the floor, corners, pipe penetrations and the joins between surfaces.
At G&B Plumbing & Heating Ltd, we carry out wet room waterproofing in Bexley as part of a complete installation, not as an isolated extra. We prepare the room, form the correct falls to the drain, apply the tanking system and then move on to tiling and finishing. That sequence helps the wet room work as a build, rather than leaving vital protection to chance.


Planned with the layout, not squeezed in later
Tanking works best when it is part of the design thinking from the start. With G&B Plumbing & Heating Ltd we look at drain position, floor levels, shower zone layout and the type of finish you want before the waterproofing stage begins. We then tile the wet room in house, helping the detailing stay consistent from the waterproof layers through to the visible surface.
You can choose your tiles and fittings through partner showrooms, and if the wider project needs plastering, construction work or gas related sign off, we coordinate trusted specialists to keep the job complete and well organised.
Frequently asked questions
What parts of a wet room need tanking?
The floor is essential, but the wet zone walls, corners, joints and penetrations around pipework and drains also need careful waterproofing. These are the areas where moisture can creep through if the room is not prepared thoroughly before tiling.
Is tanking done before the tiles go on?
Yes. Tanking sits below the final tiled finish and forms the waterproof barrier of the wet room. We complete that stage after preparation and drainage planning, then move on to tiling once the protected base is in place.
Can you handle tanking as part of a full wet room project?
Yes. We carry out tanking within the wider wet room installation, which allows us to plan the drain, falls, layout and finish together. That joined up approach is one of the best ways to reduce problems and improve long term reliability.

