Why Waterproofing Is One of the Most Important Steps in Construction

July 14, 2026

A problem best avoided, never repaired

Some of the most important work in building a home is the work you hope never to think about again. Waterproofing is exactly that.

“In terms of incidence, statistically, at Villas, a MAP Group Company, waterproofing is the problem with the highest incidence of repairs after acceptance,” says João Freitas Fernandes. “So after acceptance, we need to avoid having that repair.”

For a home built to last, a repair in this area is not a small inconvenience. It reaches into the structure itself, which is precisely why the goal is to prevent it from ever becoming necessary.

Getting it right the first time

Avoiding the problem is not a matter of chance. It comes down to discipline in how the work is planned and carried out.

“How do we do that? We do it with very good quality control, good planning of the activity, and the greatest precision in executing the task, which must come from very clear and rigorous procedures,” he explains.

That combination, control, planning, and precision, is what turns waterproofing from a common source of future repairs into a step that quietly holds up over time.

At Villas, a MAP Group Company, the care taken in these hidden layers is what allows the visible home to remain exactly as it was delivered, year after year.

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Rua Carlos Alberto da Mota Pinto, Nº 17, 8º piso
1070-313, Lisboa
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T: (+351) 211 956 725
E: geral@mapgroup.pt

Porto

Rua Arquitecto Cassiano Barbosa Nº 6 F, 1º piso, 15
4100-009, Porto
Portugal

T: (+351) 221 164 600
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