Saltar al contenido
NoMoho.es

Service

Damp wall repair in Barcelona

If paint on a wall has bubbled, peeled or left damp marks, this page is about surface work: preparation, treating marks and a careful finish when the base is ready. You can write in English.

Send photos on WhatsApp

You can write in English — we reply in English. We usually reply quickly. If we are on a job, it may take up to 2–3 hours.

About this service

When to contact us

What the work includes

Related pages

When to contact us

This page is for you if a wall in your Barcelona flat has already been affected by damp and a simple repaint will not fix it. Common cases:

  • paint that has bubbled, peeled or comes away when touched
  • flaking areas, old damp traces, uneven surface
  • a wall that was painted before and the mark returned in the same place
  • mould next to an area where paint has failed
  • a cold corner, the lower part of a wall or a party wall with a ruined finish

You do not need to know whether it is mould or old damp. Two or three photos are usually enough to see where to start.

Send 3 photos on WhatsApp

The most useful things are:

  1. A wide shot of the wall and room — light, height, furniture nearby.
  2. A close-up of the damaged area — no flash, in focus.
  3. A few words — when it appeared and whether you have painted this spot before.

That is usually enough to say whether damp wall repair fits, whether mould treatment is needed first, or whether another option makes more sense. If the photos are unclear, we will say so.

How the work usually goes

We start with what is visible on the surface. After that it may involve:

  • removing peeling or bubbled paint
  • cleaning and preparing the area
  • treating mould if it is on the damaged wall
  • light levelling of the surface
  • primer or preparation for painting
  • painting when the base is ready

Not every case goes through all steps. A small area with peeling paint is one thing. A large wall with several layers and recurring marks is another.

When not to paint straight away

If the mark is growing, dripping or looks like an active leak, the cause needs to be understood first. Surface repair makes sense when the wall is not taking on new moisture. If damp keeps feeding the same zone, paint will peel again.

What we do not do

To be clear, this work does not include:

  • full replastering or plasterboard replacement
  • structural wall repair
  • finding a hidden cause of damp inside the wall
  • fixing leaks or plumbing work
  • heavy waterproofing
  • a promise that the problem will never return if the cause remains

If you need something from this list, it is better to say so upfront than to offer work that does not fit.

If the main issue is a mark on sound paint — see mould removal. If the wall is ready and you only need a finish — anti-mould painting. If the ceiling is affected — damp ceiling repair.

More on mould on walls — dedicated page. To send photos — contact.

What to know before starting

What to know before starting

What fits this job, where the limits are from photos, and when another option is better.

How the work usually goes

How the work usually goes

We usually start with photos. That makes it easier to see the surface and whether a visit is needed.

  1. 1

    You send 2–3 photos and a short note on WhatsApp

  2. 2

    We say whether the work fits, what is included and what is not

  3. 3

    If a visit is needed, we arrange a look in Barcelona

More on this topic

Related pages

If you need more context or want to write straight away — useful pages below.

FAQ

Frequently asked questions

Short answers. Question not listed — write on WhatsApp in English.

Can I write in English?

Yes. We reply in English on WhatsApp.

What should I send in the first message?

A wide shot of the wall, a close-up of the damaged area without flash, and a few words: when it appeared and whether you have painted it before. That is usually enough.

Is this a full wall rebuild?

No. We work on the surface: remove failed paint, prepare the area and paint when needed. We do not replace plasterboard or do structural wall work.

Can I paint straight over the mark?

Usually not. If paint has peeled or the mark keeps coming back, the surface needs preparation first. Otherwise the new coat will peel again.

Can you guarantee the damp will not return?

No. We restore what is visible on the wall. If the source of damp is still active, the mark can appear again.

Contact

Send 3 photos on WhatsApp

A wide shot of the room, a close-up of the mark, and a few words about what you see. We reply in English.

If the photos show a visit is needed, we can arrange a free look in Barcelona.

You can write in English — we reply in English.

Artyom — Última actualización: 16 de junio de 2026