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We carry out bathroom renovations in Granollers. We visit the property, assess the work, give you a clear price, and start. The most common mistake with damp is repainting the affected wall. It works for the first month, and then the damp reappears, worse than before. The new paint acts as a barrier, trapping water inside the wall. Damp isn't fixed by painting. It's fixed by identifying the source of the water and stopping it at its entry point. Only then do we repair the wall using the appropriate technique and repaint.

How we work

Rising damp, roof leaks, internal condensation, and salt efflorescence. Diagnosis before action. Chemical injection, exterior waterproofing, breathable coating, or ventilation depending on diagnosis. It depends on the linear metres of affected wall. We provide a fixed quote after a diagnostic visit, with no obligation.

When to call for a bathroom renovation in Granollers

There are four types of damp we commonly encounter on the Costa Blanca, each with a different cause, diagnosis, and treatment. Confusing them inevitably leads to ineffective treatments and wasted money. That's why we always start with a diagnostic technical visit before quoting anything. The difference between treating damp correctly or incorrectly can change the longevity of the result between five years and six months. This is damp that rises from the ground through walls due to the capillary action of porous materials. It manifests as a damp stain on the ground floor up to a height of one metre from the floor, often with white efflorescence (salts that crystallise as the water evaporates). It is typical in old ground-floor properties, especially in areas with a high water table near the sea. We provide a formal guarantee on the treatment. If the damp reappears in the same spot, we return.

Materials and brands

There isn't as much competition here as on the coast, and it shows in the quality of some professionals. We work in San Miguel with the same standards as in Torrevieja. San Miguel de Salinas is an inland municipality about fifteen kilometres from Torrevieja, in the Vega Baja region. It has about ten thousand inhabitants and a mixed profile of Spanish residents and foreign owners who sought to move away from the saturated coastal urbanisations. This intermediate position has a specific technical consequence. The local supply of professionals is limited; the self-employed workers here do not face as much competition as in Torrevieja or Orihuela Costa, and the average service quality is uneven. Some professionals are excellent; we know them. Others take advantage of the lack of alternatives to do quick, no-guarantee jobs. The treatment is a barrier chemical injection. We drill small holes at the base of the wall at regular intervals and inject a resin that penetrates the wall, forming a horizontal waterproofing barrier. This barrier prevents water from rising further by capillary action. Over this barrier, we can repair and repaint with a breathable paint system. We guarantee the treatment for 5 years.

Indicative pricing

The cost of a bathroom renovation in Granollers typically ranges between €158 and €3950. The final figure depends on the property's condition, materials, and labour time. We always provide a fixed quote before starting. We have verified professionals available in under 2 hours. Select the service and request a quote. Call us, message us on WhatsApp, or request your quote online — we'll respond in under 10 minutes during business hours.

Service data

Real numbers, authorship and sources

Operational info based on our activity in the area, reviewed by a senior pro and referenced with official sources.

Author

Coordinación editorial · Barcelona Manitas

Equipo editorial y de coordinación

Reviewed by

Coordinación editorial · Barcelona Manitas

Equipo editorial y de coordinación

Frequently asked questions

Request a quote for a bathroom renovation in Granollers. We'll respond today and, if it suits you, we can schedule a visit this week.

Masonry · Vallès Oriental

Bathroom renovation in Granollers

Full bathroom refit. Coverage in Granollers (Vallès Oriental). Capital del Vallès Oriental, con centro denso y barrios residenciales en Can Bassa y Sant Miquel.

Local team, registered and insured. We give you a fixed written quote before starting — no surprises or hidden fees.

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Indicative price Granollers
160–3950 €
Duration
2.9 h+
Response
< 24 h
Area
Vallès Oriental

Indicative price. We give the fixed price after reviewing your photos or —if you prefer— a visit, no commitment.

Bathroom renovation in Granollers: what's included

  • junta deteriorada
  • azulejo roto
  • humedad por capilaridad

Frequently asked questions

How to distinguish rising damp from water ingress?
Rising damp: a stain that climbs from the floor, up to a metre high, with white efflorescence. Water ingress: a stain coming down from the ceiling or high corners, coinciding with rain.
How much does chemical injection cost?
It depends on the linear metres of affected wall. We provide a fixed quote after a diagnostic visit, with no obligation.
How long does the treatment last?
We guarantee chemical injection for 5 years in writing. In reality, it lasts 15-20 years or more if the treatment is done correctly and no new source appears.
Do I need to empty the room?
For chemical injection and interior wall repair, yes, at least move furniture away from the affected wall. We use protective sheeting to minimise dust.
Do you paint with breathable products?
Yes, we use a specific paint system for damp walls: a salt-resistant sealer primer, followed by a breathable microporous paint that allows the wall to breathe.
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