Bestimate, a Dubai cost guide, puts small silicone or grout sealing at AED 250–900↗, waterproofing a shower area at AED 1,500–4,500↗, and a full bathroom floor at AED 3,000–8,000+↗. A maintenance company quotes lower totals for lighter systems: AED 1,200–2,800 per shower↗ for a shower enclosure and AED 600–1,500 per bathroom↗ for a floor. Which bracket you land in depends mostly on how much tiling has to come up.
Bestimate publishes AED 250–900 for small silicone or grout sealing, AED 1,500–4,500 for waterproofing a shower area and AED 3,000–8,000+ for a full bathroom floor. Green Grove Maintenance publishes AED 1,200–2,800 per shower for a shower enclosure with a liquid system and AED 600–1,500 per bathroom for a bathroom floor with a cementitious system.
Sources: Bestimate, Bathroom Waterproofing Dubai Cost Guide 2026 (updated June 2026); Green Grove Maintenance, Waterproofing in Dubai (July 2026). Industry figures.
Show the data as a table
| Scope | Published bracket |
|---|---|
| Silicone or grout sealing (Bestimate) | AED 250–900 |
| Shower area, re-tiled (Bestimate) | AED 1,500–4,500 |
| Shower enclosure, liquid system (Green Grove) | AED 1,200–2,800 per shower |
| Bathroom floor, cementitious (Green Grove) | AED 600–1,500 per bathroom |
| Full bathroom floor (Bestimate) | AED 3,000–8,000+ |
Sealing: the cheapest thing that sometimes works
Raking out old silicone and grout and replacing it is worth doing when the water is getting past a joint rather than past the membrane. If the damp patch is on the outside of the shower wall at floor level and the grout in the corner is black and shrunken, this is a reasonable first move at AED 250–900↗.
It is the wrong move when the ceiling of the room below is stained. Water that has reached a slab has gone past the waterproofing layer, and new silicone does not reach that.
The shower area
The wet zone does most of the work in any bathroom and fails first. Doing it properly means lifting the tiles in that area, applying a membrane that turns up the walls and is sealed into the drain, then re-tiling. Bestimate's bracket for that is AED 1,500–4,500↗, and it includes the tile removal, substrate repair and a ponding test. Much of the spread inside it is tiling, because finding a match for an older tile is rarely quick.
Green Grove's AED 1,200–2,800 per shower↗ is for a liquid-applied system on the walls and floor of an enclosure. Before comparing the two, check whether a quote at the lower figure includes lifting and relaying the tiles. The same company adds AED 20–40 per m² on top↗ when existing tiles have to come off to reach a failed membrane.
The whole floor
AED 3,000–8,000+↗ buys the full job in Bestimate's guide: strip the floor, waterproof it, detail the drain, turn the membrane up the walls, flood test, and re-tile. It is the right answer when there is a leak into the room below, when the bathroom is being renovated anyway, or when the last repair did not hold.
The lower AED 600–1,500 per bathroom↗ figure is for a cementitious coating on a wet-area floor. The same company rates cementitious systems at AED 25–45 per m²↗ and says they cope poorly with movement, so ask which system a floor quote is for before you compare it with anything else.
Bestimate lists the drivers as how deep the tile and screed removal goes, which membrane system is used, how the drain is detailed, how far the membrane runs up the walls, and whether a ponding test and re-tiling are included. That list is worth reading out to whoever quotes.
Why bathrooms leak in Dubai apartments
Usually at a junction rather than in the middle of the floor, in our reading of how these jobs are described. The upstand at the shower wall stops too low, the membrane is not sealed into the drain body, or a second bathroom refit has cut through the original layer to move a trap. None of those are material failures, and none are fixed by a better product.
In a tower, the other complication is your neighbour. Water appearing on your ceiling may be from the flat above, and getting agreement on who opens which floor is often harder than the waterproofing itself. Photograph, date, and tell the building management in writing early.
Getting the quote right
Bestimate's advice is to compare the same scope↗: materials, labour, access, removal, disposal, protection, warranty and any excluded repairs. For a bathroom, add two questions. Is a ponding test included, and for how long? And who pays if lifting the tiles reveals that the screed underneath is saturated?
How to read a waterproofing quote covers the rest. If the stain is on a ceiling directly under a roof rather than under another flat, start with the roof signs instead.