Electrician in Mariahilf, 1060 Wien.

At 1.5 km², Mariahilf is Vienna's second-smallest district, and it is more than four times as densely populated as the city average. Of its roughly 1,470 buildings, 953 date from before 1919, just under two thirds. These are the Gründerzeit tenements that stand in unbroken blocks along Gumpendorfer Straße, around the Esterházypark and by the Naschmarkt. In between stand lower houses from the Biedermeier period, many of them with a passage through to the next street, like the Raimundhof, which links Mariahilfer Straße with Windmühlgasse. On the Linke Wienzeile, Art Nouveau joins them, with Otto Wagner's houses of 1899. Between the Wienzeile and Mariahilfer Straße, the Fillgraderstiege, a listed stairway, climbs from Fillgradergasse up to Theobaldgasse. The sixth has fewer than 40 council buildings (Gemeindebau), most of them with 15 to 85 flats and slotted one at a time into an existing street front after 1945, from the Einsteinhof in Mollardgasse, built between 1949 and 1952, to the Rudolf-Hundstorfer-Hof in Stumpergasse, completed in 2025. The Leuthner-Hof at Mollardgasse 89, built in 1931, is the only one dating from the First Republic.

In the Gründerzeit flats between the Wienzeile and Mariahilfer Straße we usually find a consumer unit in the hallway with screw-in fuses and no RCD, timber-beam ceilings, and a kitchen that has hung on a single circuit since the building went up. In the post-war buildings in Kaunitzgasse and Mollardgasse, the installation from the fifties is often still the original one, with few circuits and not every socket earthed. Around 810 buildings in the district are on gas and only about 60 on district heating, which Wien Energie has been extending around Gumpendorfer Straße since 2025. Where a gas boiler makes way for an electric appliance in the switchover, the consumer unit has to be upgraded first. In the sixth, everything on the list costs the list price. We charge the call-out, 69 €, once per visit, even for two flats in the same building.