Condensation on windows: why it appears and how to fix it in Sitges
Resumen rápido
Condensation is indoor air water cooling on the cold glass.
¿Qué está pasando?
The air in the room has too much humidity.
Causas más probables
Lack of ventilation
altaSealed flats without airing trap vapour.
Cold window, no thermal break
altaOld aluminium or single glazing.
Drying laundry indoors
altaOne load releases 2–3 L of water.
Poorly set heating
mediaHigh temp + closed windows.
Pasos de diagnóstico
- 1
Air the rooms for 10 minutes
Open opposite windows.
- 2
Wipe the glass and measure humidity
A hygrometer costs €8–15.
- 3
Cover pots and use the extractor
Cooking uncovered releases litres of vapour.
- 4
Dry laundry outside or with window open
If not, a dehumidifier.
Cuándo llamar a un profesional
If it persists with low humidity, check the carpentry.
Coste orientativo en Sitges
0–150 €
Diagnosis or vents.
Contexto local · Sitges
Outdoor winter humidity is high in Sitges.
Sitges mixes tourist town, second homes and holiday rentals, with a protected old town where any façade work needs specific council approval. Salt air and the southwest wind quickly damage joinery and ironwork: we default to stainless and marine-grade aluminium. Most of the work is off-season (October–May); in summer we keep to discreet repairs and pre-arrival check-ups for short-let flats. In Vinyet and Aiguadolç, villas with pools dominate, with scheduled maintenance. C-32 access is easy outside summer weekends; old-town unloads must be done before 10 a.m.
- Comarca: Garraf
- Población: 30.058 hab.
- Parque de vivienda predominante: unifamiliar
- Año medio de construcción: 1990
- Códigos postales: 08870
Localidad turística con cascos antiguos (Sant Sebastià, Vinyet) y urbanizaciones de chalets en Vallpineda y Levantina.
Preguntas frecuentes
Does condensation cause mould?
Yes, if continuous.
Do salt absorbers work?
For a room, insufficient.
¿Prefieres que vayamos nosotros?
Diagnóstico y presupuesto en Sitges normalmente el mismo día.
Pedir presupuesto gratisProblemas relacionados en Sitges
Más sobre Damp, mould and paint
Sources and regulation
- CTE DB-HS 1 — Protección frente a la humedad — Código Técnico de la Edificación