Moisture Detection in Lisboa

About our service in Lisboa

Damp in Lisboa comes down to three origins, and telling them apart is the whole point of a survey. Condensation appears when humid indoor air meets a cold surface — a window reveal, an external corner, the wall behind a wardrobe — and it is both the most common problem we are asked about and the most often mistreated. Rising damp is ground water climbing through the base of a wall, easy to find in buildings put up long before anyone thought to lay a damp-proof course. Infiltration is water entering from outside: a cracked parapet, a blocked saguão gully, a failed balcony threshold. Older Lisboa flats frequently suffer more than one at the same time, and the cement render applied during an earlier refurbishment usually makes matters worse, because a wall that needs to breathe can no longer dry. Where damp shows is not where it enters. Water travels through masonry and reappears at the lowest or coldest point it can reach, sometimes a room away. So we do not trust the stain. We take readings across the affected surfaces and compare them with sound areas of the same wall, look for cold spots, check how the flat is ventilated and heated, and inspect the outside wherever we can reach it. Timing counts as much as the instrument: infiltration reads clearly after rain, condensation during a cold spell, rising damp in every season. When a first visit in Arroios or Campolide is not conclusive, and on old buildings that does happen, we say so and propose a second set of readings at another time of year instead of guessing. What you receive is a diagnosis, not building work. The report sets out the readings, photographs, the origin we have identified and the steps in order of priority. If the values point to water escaping from a pipe under pressure, we tell you and hand the job to our water leak repair service. If the answer is render, waterproofing or a new damp-proof detail, our bricklaying team can quote for it, and painting comes last, once the wall has dried. That order matters: repaint a wet wall in Graça and you will be repainting it again next winter.

A moisture survey in Lisboa covers:

Services Included

• Moisture readings in walls, ceilings and floors, compared room by room
• Separating condensation, rising damp and outside infiltration
• Hidden damp checks before a purchase or before refurbishment starts
• Mould diagnosis and a prevention plan for under-ventilated flats
• Written report with the readings and a prioritised treatment plan

Areas We Serve

We work across the city and its parishes: Baixa and Chiado, Avenidas Novas, Estrela, Areeiro, Graça, Arroios and Campolide.

Work Gallery