Pool Waterproofing in Mallorca
Losing water through the shell? Vetted specialists seal, coat and rebuild pool surfaces across Mallorca so the water stays where it belongs.
Why shells start leaking
Most concrete pools on Mallorca were built decades ago. Grout wears thin, hairline cracks open in the gunite, and porous patches let water migrate slowly into the ground. The bill arrives as rising water top ups and, with restrictions tightening, wasted water is money twice over.
Waterproofing methods
Depending on the diagnosis, specialists use flexible cement based coatings under new tiling, transparent sealants for local porous zones, full membrane systems for problem shells, or a complete resurfacing. The right method depends on the age of the shell and how it is finished, which is why every job starts with an inspection.
Waterproofing or renovation
If the shell also has structural cracks or tired tiling, a full pool renovation at 8,000 to 20,000 EUR usually beats patching twice. If the loss turns out to be in the pipes rather than the shell, see leak detection.
Across the island
From Palma and Calvia to the villages of Es Pla. Compare all ranges in the 2026 pool cost guide.
Frequently asked questions about pool waterproofing
How do I know the shell leaks and not the plumbing?
The bucket test is the classic check: place a bucket of water on a step, mark both levels and compare after 48 hours with the pump off. If the pool falls faster than the bucket, water is escaping, and a pressure test then separates shell from pipes.
Can you waterproof without retiling?
Often yes. Local porous zones and joints can be sealed in place. Full membrane or coating systems require the surface to be prepared, which sometimes means new tiling on top.
How long does waterproofing last?
A properly applied coating or membrane lasts many years and is normally guaranteed in writing by the company doing the work.
What does it cost?
Small sealing jobs are quoted after inspection. Where waterproofing is part of a bigger refresh, full renovations run 8,000 to 20,000 EUR on Mallorca in 2026.
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