Electrician in Triana, Seville, Spain: patio houses, riverside damp and bars

Old Triana, building by building

Triana, the historic barrio across the Isabel II bridge, is officially called Triana Casco Antiguo. It runs from Plaza del Altozano and the market, built over the old castle of San Jorge, to Calle Castilla, and from Calle Betis to the San Jacinto and Pagés del Corro axis. It is a barrio of sailors, potters and artists, and its houses show it.

For an electrician, Triana has three kinds of building:

• Patio houses and old corrales. Two or three floors around a courtyard, several homes per floor and one single supply for all of them. Many have been restored as apartments; others remain as they were, with cables crossing the patio and meters scattered along the galleries.
• Early 20th century buildings on Pureza, Betis or San Jacinto, with high ceilings, generous flats and installations altered many times.
• 1960s and 1970s blocks squeezed in between, still with their original wiring and very few circuits.

Electrician in Triana, Seville: the typical problems

Damp. The river and the thick old walls mean moisture rises on ground floors. Junction boxes and low sockets (outlets) corrode, and the RCD trips with the first rain or after mopping the floor. Our page on why the RCD keeps tripping explains what you can check first.

Shared supplies. In unrestored patio houses, several flats hang off the same line. When one neighbour switches on the air conditioning, another loses power. The fix is a central meter room with separate risers for each home, a decision for the comunidad (owners’ community). Our homeowners’ association services cover it.

Low power and no earthing. With 2.3 or 3.3 kW contracted, a Triana summer feels very long. To raise the potencia or to rent out the flat you will need an electrical certificate (boletín), from about 70 euros as a guide if the installation complies.

When the whole house is renovated, the best value is rewiring it in one go: a new fuse board (consumer unit), separate circuits and earthing (grounding) on every socket.

Holiday lets in Triana

Many restored patio houses and flats in Triana now host visitors. Guests expect air conditioning in every room, an induction hob and plenty of sockets, and an old line cannot take it all. We review the contracted power, split circuits and leave a labelled board so your manager can reset it. The boletín is not a listed requirement for registering a holiday let in Andalusia, but a safety check protects guests and your insurance.

Bars, shops and workshops

Triana has some of the busiest bars in Seville, from riverside terraces on Calle Betis to the taverns of San Jacinto and Pureza. A bar needs dedicated kitchen lines for griddles, fryers and cold rooms, emergency lighting, extraction, terrace lighting and an OCA inspection every five years if it is open to the public. Then there are the ceramics shops and workshops on Alfarería and Antillano Campos, with kilns that need powerful, well protected lines.

If you are opening, taking over or refurbishing a business here, start with our shops and offices page, where we explain the paperwork and how we plan the works on closing days.

Working in old Triana

Narrow streets and almost no parking mean planning ahead: we arrive with materials ready and, if a building has to be switched off, we arrange it with the neighbours. In patio houses we choose cable routes that do not damage tiles or courtyards.

Emergencies in Triana

An August night without air conditioning or a bar without power during the Velá de Santa Ana cannot wait: our 24-hour emergency electrician covers the whole of Triana at any hour. Just to the south, on the same bank of the river, see our page for Los Remedios.