Renovation in Viladecans and El Prat de Llobregat
Delta land next to the airport, which is exactly why it is affordable and exactly what you have to design around: groundwater close to the surface, and flight paths overhead.
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Short answer
What a renovation costs in the Delta, and what to budget extra for
A full renovation runs from €780 to €1,600 per m², so a 75 m² flat comes out between €58,500 and €120,000 in 10–14 weeks on site. In this area two items deserve their own budget line rather than being absorbed: acoustic external joinery, and damp treatment if you are on the ground floor. Quote fixed in writing 48 hours after the technical visit.
The per-square-metre figure is the same as anywhere else we work. The difference is that here two site conditions are effectively guaranteed, and pretending otherwise just moves the cost to a later conversation.
| Delta condition | Where it shows up | What actually solves it | Budget effect |
|---|---|---|---|
| Groundwater near the surface | Ground floors, basements, garages | Injected barrier, drainage, breathable finish | Own line item |
| Aircraft noise | Bedrooms facing the flight path | Double-seal frames, asymmetric acoustic glass | Own line item |
| 1960s–80s block services | Whole flat | New electrics and plumbing in one pass | Inside the m² rate |
| No façade insulation | Winter bills, comfort | Internal dry lining with mineral wool | Inside the m² rate |
| Unusable layout | Corridors, tiny bedrooms | Redistribution, non-structural | Inside the m² rate |
What to check before you sign
- Real noise inside the flat at several times of day, early morning included
- Damp on ground-floor walls, and whether the basement or garage filters
- Orientation to the runways, which changes sharply between nearby streets
- Whether a façade or roof derrama is already approved
Groundwater and noise
The two conditions that are specific to here
A high water table
Delta land: subsurface water sits close to the surface, so on ground floors, in basements and in garages capillary damp is normal rather than exceptional. Paint does not address it. A chemical barrier injected into the wall, perimeter drainage where there is access, breathable finishes above — a planned item here, not a surprise.
Living under a flight path
Parts of both municipalities sit under approach routes. Acoustic external joinery is not a luxury here, it is the item that decides whether the home is comfortable: double seals and asymmetric laminated glass — two panes of different thickness, so they do not resonate together — plus the roller-shutter box, the leak everyone forgets. Measure inside the flat first; two streets apart can be a different decision.
Ventilation once you have sealed it
Improve airtightness without planning air renewal and you get condensation where there was none. Trickle vents in the joinery or mechanical ventilation — the item most often missing from a cheap quote.
For non-resident owners
Airport on the doorstep: buying here from abroad
You can be at your own front door twenty-five minutes after landing. The trade-off is the flight path, and the paperwork is local.
Comunicació prèvia or licence
Interior work that touches no structure is a comunicació prèvia. Anything structural or altering the façade — including an external air-conditioning unit where the comunidad regulates the elevation — needs a licence and a technical project. Viladecans and El Prat have separate ordinances. We file in your name.
Cédula d’habitabilitat
The Generalitat certificate of occupancy: valid fifteen years for an existing home, required to let the property legally and to connect utilities. If your plan is to let, check its expiry date before completion, not after.
Comunidad and derrama
The comunidad de propietarios runs the building and votes its budget: liability policy, agreed noise hours, lift permission, all filed in advance by us. A derrama is the extraordinary levy voted for building-wide work such as the roof, lift or façade, charged to owners on top of the monthly fee. Not in our quote, but it lands on you. Here façade and roof derramas are common: salt-laden Delta air is hard on external finishes.
Working with you elsewhere
- A noise reading and a damp check documented at the technical visit
- Acoustic and damp items priced separately, so you can see them
- Staged photographs, decisions batched into one weekly answer
- Permits, deliveries, waste and the residents association handled here
Frequently asked
Renovations in Viladecans i El Prat: common questions
A 75 m² flat runs from €58,500 to €120,000. In this area it is worth reserving a separate budget line for acoustic joinery, which is the item that changes comfort most, and for damp treatment on a ground floor.
Substantially, though not eliminated. Double-seal joinery with asymmetric acoustic glazing, plus insulation of the roller-shutter box, makes a very noticeable difference. Measure inside the flat at several times of day before choosing the specification.
Delta land: the water table sits close to the surface, so water climbs through the masonry. Solved with an injected chemical barrier, perimeter drainage where there is access, and breathable finishes — not paint.
The real noise level inside the flat at different hours, damp on ground-floor walls, whether the basement or garage filters, and orientation relative to the runways. That orientation changes sharply between streets only a few hundred metres apart.
Yes: Viladecans, El Prat, Gavà, Castelldefels and Sant Boi are standard coverage, 15 km from Barcelona with direct access by C-31. No travel surcharge and the same weekly reporting.
Next step
Planning a renovation in Viladecans i El Prat?
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Clients
What clients say after their renovation
Rated 5.0 from 14 Google reviews. All real, from real projects.
★★★★★
“Doy un 10 la verdad con el servicio que me han prestado en una reforma de un piso en Barcelona capital, gente muy seria y responsable, gracias.”
Araks SahakyanJuly 2026
★★★★★
“Quedé encantada con la atención y la calidad del trabajo. Se nota que cuidan los detalles y cumplen con lo que prometen.”
Ana RiveraApril 2026
★★★★★
“Servicio muy profesional. Me explicaron todo con claridad y el trabajo quedó perfecto.”
Ana AlemanMarch 2026
★★★★★
“Si estas buscando profesionales responsables para hacer tu reforma, es el lugar indicado. Especializados en reformas integrales con la mejor atención personalizada. 100% recomendados.”
Daniel GarganoFebruary 2026
★★★★★
“Muy buen trabajo, ha realizado un trabajo muy profesional, ha cumplido en plazo y en calidad.”
Francisco PiñeirosAugust 2025
★★★★★
“Muy buenos profesionales, con excelente resultado.”
Esther DiezJune 2026