Roof renovation Vienna before the stain appears on the ceiling.

Roof renovation Vienna: costs 2026

Net guide values, as of 2026, binding after a site visit. What matters is whether only the covering is replaced or whether insulation, roof truss and sheet-metal work are added.

Unit prices, so you can check a quote

If there is a roof terrace above the living space instead of a roof surface, a different build-up applies – see Terrace Renovation Vienna.

How to tell that your roof is due

• Damp patches in the attic after rain or snowmelt, especially at valleys and chimneys.
• Daylight in the roof space where there should be none.
• Displaced, broken or missing tiles – usually after a storm, often unnoticed.
• Moss and growth in the interlocks, which holds back water and soaks the tiles.
• Rust streaks on gutters, valleys and flashings: the sheet-metal work has reached the end of its life.
• Sagging roof surfaces or eaves – a sign of damaged rafters or beam ends.
• Render flaking off the chimney head, the classic entry point for water.
• Covering older than 50 years. Even without visible damage, its service life has been reached.

Roof covering materials compared

In Viennese period buildings the choice is rarely free: pitch, roof truss statics and, in conservation zones, MA 19 impose restrictions. A heavy concrete tile on a Gründerzeit roof truss designed for clay tiles is not a saving but a structural problem.

The build-up of a renovated pitched roof

Six special features of Viennese roofs

1. The Gründerzeit roof truss was not built for residential use

It carries the covering and snow, nothing more. As soon as insulation, conversion or a heavier material is added, the structure must be checked. Typical findings: rotten rafter ends at the eaves where water has penetrated for decades, and connections to the wall plate that were never intended for tensile forces.

2. Conservation zone and MA 19

Large parts of the Gründerzeit stock lie in conservation zones. There, every change visible from public space is assessed: material, colour, pitch, dormers, roof windows, solar systems. Considerably more is possible on the courtyard side than towards the street. Two to four months of lead time must be planned in.

3. Narrow streets, no storage space

Inner-city sites have no space. Material arrives just in time, rubble goes down the chute into the container, parking lanes need a permit from MA 46. In streets with trams or cycle paths, every delivery becomes a matter of scheduling. Anyone who does not plan this loses weeks.

4. Occupied apartments below the site

Work is carried out in sections, and every opened area is closed rainproof in the evening. Where the use below is sensitive – freshly renovated apartments, medical practices – a weather-protection roof over the scaffolding is added. That costs €15,000 to €40,000, but is cheaper than water damage over three floors.

5. Many old chimneys

Viennese period buildings often have four to eight chimney heads on the roof, many of them unused. Each one is a potential leak. Chimneys that are no longer needed can be taken down below the roof – that saves money in every future renovation. Active chimneys need approval from the chimney sweep.

6. Asbestos in the existing structure

Corrugated Eternit sheets on side roofs, courtyard canopies and garages almost always contain asbestos up to 1990. Sampling before construction starts costs €800 to €2,500, disposal €300 to €700 per tonne. Anyone who strips without investigation risks the site being shut down.

Flat roofs: different rules

A flat roof is not a flat pitched roof but a component in its own right. Leaks almost always arise at details, not across the surface.

• Fall of at least 2%. Standing water accelerates the ageing of any waterproofing and freezes in winter.
• Outlets and emergency overflows. A blocked outlet without an emergency overflow floods the roof – 10 cm of backed-up water means 100 kg per square metre.
• Upstand heights. At least 15 cm above the top of the finish at rising components, less at doors with a drainage channel.
• Choice of material. Two-layer bitumen is robust and easy to repair, single-layer synthetic membrane is lighter and quicker, liquid plastic for complicated connections and penetrations.
• Penetrations for ventilation, antennas and cables are the most common leak points. Each needs an integrated sleeve, not a silicone joint.
• Green roofs extend the life of the waterproofing but need a root-resistant layer and a structural check – an extensive green roof weighs 80 to 150 kg/m² when saturated.

How a roof renovation runs

The eight most expensive mistakes in roof renovations

• Saving on the sheet-metal worker. The tiled area is rarely the problem. Cheap connections cost the whole roof in five years.
• No roof underlay. Saves €9 to €22/m² and lets wind-blown snow onto the insulation.
• No counter-battens. Without ventilation, moisture stays in the build-up and the insulation loses its effect.
• Heavier material without a structural check. Concrete tiles on a roof truss designed for clay tiles.
• Keeping old gutters because the roof is new. The scaffolding is up once – anyone who replaces the gutter later pays for it twice.
• Insulating without a vapour retarder. The surest way to blackened rafters within two winters.
• Adding photovoltaics to the old roof later. In a few years everything has to come off again.
• Chimney head not included. The classic entry point for water – and the place nobody likes to rework later.

How to check a roofing quote

Subsidies and who pays

In all subsidy cases, the application must be submitted and approved before construction starts. Anyone who starts beforehand loses the entitlement completely.

Who we renovate roofs for

When you do not need us

If only a few tiles have slipped and the surface is otherwise intact, a roofer with an aerial work platform for a few hundred euros is enough. If the building is getting a base renovation in two years anyway, the roof belongs in that and should not be awarded as a separate measure – otherwise the scaffolding goes up twice.

And if the attic is to be converted, plan both together: awarding roof and conversion separately is the most expensive option. We tell you that during the site visit, even if it postpones a job for us.

Roof repair or roof renovation of a period building

Not every leaking roof needs re-roofing. A roof repair – individual tiles, a valley, a connection – costs €800 to €4,500 and is done in one to three days. In period buildings, for example in Liesing, Döbling or the Gründerzeit districts, as roof renovators we first check the roof truss and beam ends. If the covering has reached the end of its life, re-roofing follows at €180 to €320/m².

Roof renovation of period buildings in Liesing (1230): what characterises the roofs there

The 23rd district is architecturally divided in two. In the old village centres of Atzgersdorf, Mauer, Rodaun, Inzersdorf and Kalksburg stand one- to two-storey houses from the 19th and early 20th centuries, often with steep gable roofs, courtyard extensions and roof trusses that have been added to over generations. Alongside these are villas on the edge of the Vienna Woods and many estate houses from the interwar and post-war periods. Anyone planning a roof renovation for a period building in Liesing therefore rarely encounters a standard roof. Often several coverings are combined on one house: plain tiles on the main house, corrugated sheets on the outbuilding, metal on the dormer. The timber structure tends to be small-scale, and beam ends or eaves purlins are located where water ran over a defective gutter for decades. Before covering, we therefore check the roof truss bay by bay. A second point is the location on the slope towards the Vienna Woods: more wind and more snow than in the densely built centre call for storm clips on every tile and adequately sized snow guards above footpaths and driveways.

Roof refurbishment, roof renewal, re-roofing: three terms, three scopes

The terms are used interchangeably in everyday speech, but they should not be in a quote. A roof refurbishment usually means repairing the existing covering: replacing broken tiles, re-bedding or dry-fixing ridge and hip, resealing connections to chimney and wall, cleaning and aligning gutters. The fabric remains and the intervention is manageable. In re-roofing, the old covering comes off, battens and roof underlay are rebuilt, the new covering follows, and the roof truss remains unchanged. Roof renewal goes further and also includes insulation, reinforced rafters where necessary and new sheet-metal parts. The net guide values on this page are €180 to €320/m² for re-roofing, €280 to €450/m² with over-rafter insulation, and a lump sum of €800 to €4,500 for smaller repairs. Anyone who wants to know what re-roofing costs in Austria should always ask which of these three scopes is meant. Many cheap figures refer only to tiles and battens, without sheet-metal work, scaffolding and disposal.

Flat roof repair: when patching is enough and when it is not

A leaking flat roof on a garage, extension or courtyard wing can often be repaired locally if the damage is clearly limited: an open seam, a detached parapet flashing, a blocked outlet. Then the area is exposed, dried and covered with a suitable membrane. It becomes more difficult when water has already run into the insulation. Saturated insulation boards practically no longer dry out under a tight waterproofing, lose their effect and put a load on the ceiling below. A moisture measurement or a small test hole shows how far the water has spread. If a large part of the surface is affected, rebuilding with falls and new outlets is cheaper in the long run than the third repair in five years. For roof terraces above living spaces, it is worth looking at renovating terraces and roof terraces, because finish, waterproofing and drainage are interconnected there.

Having a roof covered in Vienna: what must be clarified before the first batten

Before a roof is re-covered, three questions arise. First, the structure: a heavier concrete tile on an old, slender roof truss can be too much. Second, the use of the attic in the coming years, because anyone who wants to convert later should choose the insulation layer correctly now, otherwise work is done twice. Third, the chimney: unused flues can be taken down, used ones need new flashing and often a report from the chimney sweep. The answers feed directly into material, build-up and price. When choosing the insulation, a comparison with insulating the top floor ceiling helps, which is often sufficient for an unoccupied attic.

Frequently asked questions about roof renovation in Vienna

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