Excavation Vienna it is not the volume that costs, but the tonnes.

What excavation costs in Vienna

Guide values net, as of 2026, binding after a site visit. The price depends on soil class, accessibility and disposal – not on the volume alone.

Unit prices and ancillary services

After excavation and formation level, we finish the area on request – paved or as asphalting with frost protection layer, base course and surface course from a single source.

The three figures that determine the price

• Spoil is disposed of by the tonne, not by the cubic metre. One cubic metre of soil weighs 1.6 to 2.0 t. For 320 m³ that is around 576 t – this conversion is missing from many offers and explains later extra charges.
• Loosened material needs more space. Excavated soil has 20 to 35% more volume than in its natural state. Anyone ordering containers based on the pit dimensions orders too few.
• Shoring from 1.25 m. Deeper trenches are sloped or shored – this is occupational safety and not negotiable.
• The soil analysis comes before the excavator. Old fill, former commercial sites and wartime backfill are often contaminated in Vienna. If this is only discovered during removal, the site stands still.

Excavation Vienna from a single source

Excavation in Vienna refers to digging out the soil for a construction project — above all making the building pit into which the basement and the foundation of the building are later placed. Excavation is the starting signal for building construction: this is where a building plot turns into a construction site.

Excavation is often underestimated as simple digging. In fact it is a demanding earthworks service that requires precise planning. A building pit has to be dug to the right size and depth, safely sloped or shored, kept dry if necessary and handed over cleanly to the following trades. Mistakes during excavation can jeopardise the entire construction process.

Skyline Bau carries out excavation as the executing construction company with its own machine fleet. We remove the topsoil, dig the building pit, secure it against slipping, keep it dry if necessary and remove the spoil properly. You have one contract, a binding fixed price to ÖNORM B 2110 and one contact.

Professional excavation begins with topsoil stripping. The top layer of soil — the topsoil — is organic and not load-bearing. It is removed first, about 20 centimetres deep, and stored separately on site, because the humus is valuable and can be reused for later landscaping. Only then does the actual pit excavation begin.

The building pit is always dug larger than the planned building. A working space of about one metre wide is provided around the future building so that the workers can build, waterproof and insulate the basement walls. On top of that comes the slope — the inclined wall of the building pit, whose angle depends on the type of soil.

A central issue is excavation support. A building pit must not slip — neither during the work nor afterwards. Depending on soil type, depth and space, the pit is sloped or, if space is lacking, secured with shoring. The stability of the building pit and the adjoining areas is a task for the executing construction company working with licensed master-builder partner firms.

In addition, dewatering is often needed. If the pit lies in groundwater or surface and perched water enters, the pit has to be kept dry so that work can be done in it. Skyline Bau plans the necessary dewatering as part of the excavation concept.

We know the excavation situation — the dense development with cramped access, the changing ground conditions from load-bearing gravel to settlement-sensitive Tegel clay, the high groundwater level in some locations. Skyline Bau plans excavation realistically and carries it out with its own equipment as a clean, on-schedule part of the construction project — on request from excavation to the finished shell.

Excavation is the moment when plans become visible construction — and at the same time the moment that shows whether the ground lives up to what the planning assumed. An experienced master builder reads the soil, recognises deviations early and reacts before they become a problem for the building above. Skyline Bau brings this experience and ensures that excavation puts the construction project on a reliable footing.

all services

What does excavation in Vienna cost?

The costs of excavation in Vienna depend on the volume, the type of soil, the excavation depth, the accessibility of the site and the disposal effort. Excavation work is usually billed per cubic metre of material moved. After a site visit and based on the excavation volume, Skyline Bau prepares a binding fixed-price offer to ÖNORM B 2110.

The most important cost factor is the type of soil. Easily loosened soil such as sand or loose gravel is cheap to excavate; firm, cohesive soil, loam or even rock push up the price because the machine effort increases. For this reason, soils are divided into soil classes on which the calculation is based. The excavation depth also plays a role — a deep basement excavation is more complex than a shallow excavation for a ground slab.

A separate, often underestimated item is disposal. The excavated material usually has to be removed and disposed of at a landfill — for a basement pit the quantity is too large to be reused on the plot. Disposal costs depend on the quantity and the nature of the soil; contaminated soil is more expensive to dispose of. Skyline Bau shows disposal transparently.

Aggravating circumstances can drive up the price: difficult access, cramped inner-city locations where smaller equipment has to be used, a high groundwater level that requires dewatering, or complex excavation support. Skyline Bau checks these factors during the site visit and calculates them realistically — so the fixed price is reliable and contains no nasty surprises. Especially in excavation, where the ground is not completely predictable, an experienced, honest calculation is the client's best protection against subsequent cost increases.

what excavation includes

Excavation is more than just digging a hole. It comprises a whole series of partial services which together prepare the site for building construction.

It starts with site setup — laying temporary access roads for construction vehicles and setting up storage and parking areas. Then comes topsoil stripping: the topsoil is removed and stored temporarily. Only then does the actual pit excavation to the planned depth begin.

As mentioned, the building pit is dug larger than the building — with working space and slope. At the same time, the measures for excavation support are implemented and, where necessary, dewatering is set up. The excavated material is stored temporarily or removed directly.

Finally, the excavation bottom is prepared — the fine grading, the clean, level pit bottom brought to the correct height, on which the hardcore layer and the ground slab are then built. Skyline Bau carries out all these partial services as one coherent excavation service and hands over the building pit ready for the next construction step.

That all these partial services are in one hand is not a detail. If they are spread across several providers, gaps threaten: nobody feels responsible for the fine grading, dewatering is forgotten, the working space is too tight. Skyline Bau plans excavation as a closed service package in which none of these tasks falls through the cracks.

Soil classes and their significance

No excavation is like another, because no soil is like another. The type of soil largely determines how complex excavation is — and thus what it costs.

Soils are divided into soil classes that describe the effort required to loosen them. Easily loosened soils such as sand and loose gravel can be excavated quickly with an excavator. Cohesive soils such as loam and clay are tougher and more laborious. Rock, finally, may have to be loosened with special equipment and is the most expensive case. Depending on the location, very different conditions are encountered — from load-bearing gravel to water-sensitive Tegel clay.

The type of soil determines not only the excavation effort, but also the slope angle. Firm soil holds a steep slope, loose, granular soil needs a much flatter one — otherwise the earth slides. A flatter slope angle means more excavation volume and more area, which in turn affects costs.

As an executing construction company working with licensed master-builder partner firms, Skyline Bau assesses the ground conditions — if necessary based on a soil survey — and calculates excavation on this realistic basis. That way there are no nasty surprises when the excavator hits firmer soil than expected. An honest soil assessment at the start is the prerequisite for a reliable fixed price. At the same time it protects against the opposite risk — an excessive lump sum that prices in possible difficulties too generously as a precaution.

Excavation support and slopes

A building pit is an open hole in the ground — and it has to be safe. Excavation support protects the workers in the pit, the adjoining buildings and traffic areas, and the project itself.

The simplest form of support is the slope: the walls of the pit are made inclined so that the soil remains stable by itself. The required slope angle depends on the type of soil — firm soil allows a steep slope, loose soil requires a flat one. The slope is the most economical solution but needs space.

Where there is no space for a slope — which is often the case in dense development — shoring is used. The pit walls are secured by a supporting structure so that they can stand vertically. This is more complex than a slope, but allows excavation even where the plot is tight and directly borders neighbouring buildings.

Skyline Bau plans excavation support to suit the type of soil, the excavation depth and the space available. As an executing construction company working with licensed master-builder partner firms, we bear responsibility for ensuring that the building pit and the adjoining areas remain stable throughout the entire construction phase — a point where no compromises whatsoever are permissible.

Excavation support is also a question of occupational safety: working in an unsecured pit at risk of slipping is dangerous. A professionally secured building pit therefore protects not only the building and the neighbourhood, but above all the people working in it.

Dewatering in the building pit

Water is the natural enemy of every building pit. If water enters the pit, work cannot be done in it, the bottom softens and stability suffers. Dewatering keeps the building pit dry.

Water reaches a building pit in various ways. If the excavation bottom is below the groundwater table, groundwater enters — in some locations, such as near the Danube, the groundwater level is high. Then there is perched water flowing in permeable soil layers and surface water from rain.

Dewatering deals with this water. The simplest form is open dewatering: the seeping water is collected in the pit and pumped out. With a higher groundwater level, groundwater lowering may be necessary, which deliberately lowers the water table in the area of the building pit. Which method fits depends on the soil and water conditions.

Skyline Bau plans dewatering as part of the excavation concept. The high groundwater level in some locations is a known factor that has to be taken into account from the start — because unplanned dewatering is one of the classic sources of unexpected extra costs. Skyline Bau clarifies the water conditions in advance and calculates the necessary measures honestly. This way dewatering is part of the fixed price from the start and not an expensive extra charge that breaks the client's budget in the middle of construction.

Disposal and declaration analysis

Excavation produces a considerable amount of material — for a basement pit quickly several hundred cubic metres. What happens to this material is a separate, cost-relevant part of excavation.

Part of the excavated material can often be reused: the temporarily stored humus is used for later landscaping, suitable material can be used to backfill the working space or to level the ground. The surplus spoil, however — the largest part for a basement pit — has to be removed and disposed of at a landfill.

Disposal is ideally preceded by a declaration analysis. It provides early information on whether the soil contains pollutants, because contaminated soil is considerably more expensive and complicated to dispose of. If the soil quality is clarified in advance, disposal costs can be calculated realistically and delays avoided. For larger excavation quantities, such an analysis is mandatory anyway.

Skyline Bau plans spoil disposal from the outset — including clarifying the soil quality. Where possible, material is reused on the plot to save transport and landfill costs. Disposal is shown transparently in the offer, so that the client knows from the start which item lies ahead.

Clarifying the soil quality early has another advantage: if it only turns out during excavation that the soil is contaminated, this can throw the entire schedule into disarray because disposal then has to be reorganised. Clarifying this in advance avoids this delay — another reason why Skyline Bau puts the declaration at the beginning.

Specifics

• Topsoil stripping first — the valuable topsoil is removed and stored separately.
• Working space & slope — the building pit is dug larger than the building.
• Soil classes — from easily loosened sand to firm Tegel clay and rock, depending on location.
• Excavation support — slope or, if space is lacking, shoring for stability.
• High groundwater level — in some locations dewatering is required.
• Cramped access — dense inner-city locations require smaller equipment and well-thought-out logistics.
• Declaration analysis — the soil quality is clarified in advance; contaminated soil is more expensive to dispose of.
• Fine grading — the pit bottom is brought cleanly to the correct height.
• Condition survey — for deep excavation next to neighbouring buildings, these are documented in advance.
• Interface with the shell — the building pit is handed over ready for hardcore layer and ground slab.

active in all Viennese districts

the process of a building pit excavation

Professional excavation follows a fixed sequence. Anyone who knows the process understands why the order of work is not arbitrary and why preparation decides whether things run smoothly.

Before the first spadeful comes setting out. The position and levels of the building pit are transferred to the plot — based on the planning drawings and the level data. Inaccurate setting out would carry through the entire building, so work here is careful. Position, depth and level reference of the building pit must be exactly right, because all subsequent components build on it.

Then come site setup and topsoil stripping. Access roads are laid, storage and parking areas set up, the topsoil is removed and stored temporarily. Only then does the main excavation to the planned depth begin — usually from top to bottom in layers, with continuous support of the pit walls.

During excavation, excavation support and, where necessary, dewatering are implemented. Finally, the pit bottom is prepared as fine grading — clean, level, at the exact height. The building pit is checked and handed over to the following trades. Skyline Bau coordinates this entire sequence as one continuous project, so that the phases interlock without loss of time.

Excavation in dense development

Excavation on a free, easily accessible plot is a manageable task. Excavation in the densely built-up city of Vienna — between neighbouring buildings, on a busy street — is considerably more demanding.

The most important point is the protection of neighbouring buildings. If excavation goes deep next to an existing building, its stability must not be endangered. This requires carefully planned excavation support — often shoring instead of a space-consuming slope. Before work starts, the neighbouring buildings are documented by a condition survey.

Then there is site logistics. In tight locations, smaller equipment has to be used, the removal of the spoil has to be planned, and placing skips and containers often requires a permit for the use of public space. Pavement and traffic must be safeguarded.

Skyline Bau has experience with excavation in dense locations. We plan the excavation so that the neighbouring buildings are protected, the building pit is safe and the site is cleanly organised. With our own machine fleet, the right machine size can be chosen for every access situation — a major advantage in the dense city. Where a large excavator cannot get in, more compact equipment is used — excavation then becomes more laborious, but remains feasible.

excavation as the first construction phase

Excavation does not stand alone — it is the first step in a long chain of construction services. How well it is carried out affects everything that comes after.

Excavation is followed directly by foundation construction. On the prepared pit bottom, the hardcore layer, the blinding layer and the ground slab or strip foundations are built. If the pit bottom is not made clean and at the exact height, this defect carries over to the foundation — and thus to the whole building.

Closely related is the interface between the trades. Excavation, foundation and shell must be coordinated. If these services are in different hands, friction losses threaten — and in the event of a dispute, the question of who is responsible for a defect. If everything is in one hand, this problem disappears.

Skyline Bau is an executing construction company, works in cooperation with licensed master builders and can take on the entire route — from excavation through the foundation to the finished shell. One contractual partner, continuous responsibility, a seamless transition from one construction phase to the next. Excavation is thus not planned as an isolated service, but as the first, well-coordinated step of an overall project.

Excavation Vienna for clients, developers & businesses

Typical service packages excavation Vienna

• Site visit, measurement and assessment of ground conditions
• Site setup and temporary access roads
• Topsoil stripping and separate temporary storage
• Building pit excavation for basement and foundation
• Excavation of utility trenches
• Excavation support by slope or shoring
• Dewatering in case of groundwater, perched water or surface water
• Declaration analysis of the excavated material
• Removal and proper disposal of the spoil
• Reuse of suitable material on the plot
• Fine grading of the pit bottom
• Handover of the building pit to the following trades

from measurement to handover

Why Skyline Bau for your excavation in Vienna

• Executing construction company — excavation with full technical and structural responsibility.
• Own machine fleet — the right machine size for every access situation.
• Excavation support — slope or shoring, the stability of the pit is ensured.
• Dewatering — the high groundwater level in some locations is planned for from the start.
• Realistic soil assessment — excavation is calculated on the basis of the actual ground conditions.
• Fixed price to ÖNORM B 2110 — binding and in writing, aggravating circumstances calculated in advance.
• Transparent disposal — declaration and disposal costs are shown openly.
• Excavation and shell from a single source — on request from excavation to the finished shell.
• €3 million construction liability insurance.
• Subcontractor for the renovation of the Austrian Parliament 2022 — renovation work at the Parliament building, 1010 Vienna, in 2022.

How to recognise a reputable contractor

Check these six points with every provider of excavation in Vienna — including us. They take ten minutes and in the worst case save you a legal dispute.

Excavation methods compared

Authorities and the Vienna Building Code for excavation

• MA 37 — building police: excavation approval as part of the building permit for the structure.
• MA 30 — Wien Kanal: for excavation affecting sewer routes.
• Networks, Wien Energie: utility information before excavation (electricity, gas, water, telecoms).
• RVS 04.02.11 — safety in earthworks.
• ÖNORM B 2206 — earthworks as a contract service.
• BauKG (Construction Work Coordination Act) — safety and health protection plan for larger building pits.
• Waste Management Act — spoil as waste must be reported under the AWG ordinance.
• No-parking application to MA 46: for container placement and truck transport routes.

Why Skyline Bau for your excavation?

First — building pit, support and disposal from one plan – excavation volume, landfill class and transport routes are set before construction starts, not on site.

Second — excavation as part of the overall construction service. While pure earthworks companies only deliver the excavation, Skyline Bau coordinates excavation + foundation + shell + complete construction in one fixed-price contract to ÖNORM B 2110:2023.

Third — courtyard routine. Lifting material over courtyard boundaries, mini excavators for cramped conditions, MA 46 no-parking applications, protection of neighbours under the Vienna Building Code.

Fourth — recycling standard. Separation of spoil by type — Skyline Bau uses a spoil recycling system modelled on the excavation for the underground railway.

what you should know

So that you know exactly what to expect, we answer the most important questions here — honestly and from the practice of a building contractor that does the work itself.

What does excavation include?

Excavation includes digging the building pit or basement, trench support, removal and proper disposal of the material. If required, dewatering (for groundwater) and slope stabilisation are added. Excavation is the first step of almost every construction project.

What happens to the excavated material?

The excavated material is removed and properly disposed of or recycled. Contaminated soil must be treated separately. We take care of proper recycling so that you do not have to worry about anything.

What has to be considered with groundwater or rock?

Both increase the effort: with groundwater, dewatering (pumping out) is needed; with rock, appropriate equipment. These conditions often only become apparent during excavation — a soil report helps to assess them in advance. We calculate transparently.

What does excavation cost in Vienna?

The costs depend on excavation volume, soil type, groundwater, accessibility and disposal. After a site visit you receive a binding fixed-price offer including removal.

Excavation in 1220 Vienna: what makes Donaustadt different

Donaustadt is the district with the most new detached and terraced houses in Vienna. In Essling, Aspern, Breitenlee or Süßenbrunn, houses are often built on former farmland and market gardens, alongside large residential projects. For excavation, this brings three typical conditions.

Thick topsoil layer. On former farmland there is often more topsoil than expected. It is removed separately because it is not suitable as building ground, but is needed again in the garden. Anyone who can store it on the plot saves transport and landfill.

Gravel under the loam. At the edge of the Marchfeld, the cover layer is usually followed by Danube gravel. It is easy to excavate and is often suitable for backfilling the working spaces – provided the soil analysis shows no contamination.

Groundwater. In parts of the 22nd district, especially closer to the Danube and the Old Danube, the groundwater table is comparatively high and fluctuates with the water level. For a basement this means: determine the groundwater level before planning, include dewatering in the calculation and, if necessary, build the basement as a watertight tank. What this means for the foundation is explained on the page on the ground slab.

Then there is logistics: access via narrow residential streets, neighbours on both sides and trenches for sewer and water connections up to the street. Before the first bucket, utility information is therefore obtained so that no electricity, gas or data line in the ground comes as a surprise.

Spoil transport: how cubic metres turn into truckloads

For removal, the truck does not count in cubic metres but in tonnes. Natural soil weighs around 1.6 to 2.0 tonnes per cubic metre, depending on moisture and grain composition. A three-axle tipper may load about 15 tonnes, so it usually only takes seven to nine cubic metres, even though the body would hold more.

An example: a basement with a footprint of 10 × 12 metres and a depth of 3 metres produces around 360 m³ of solid soil, i.e. about 650 tonnes. That is 40 to 50 truckloads. With the net guide values from the price table – removal €12–35/m³, landfill for uncontaminated material €8–22/t – removal alone costs around €9,500 to €27,000. That is why every tonne that stays on the plot, as backfill or landscaping, is worthwhile.

In Vienna, loading zones and street cleaning also determine the process: the truck needs a stopping place directly at the pit, and dirty roads must be cleaned the same day. In narrow lanes, smaller two-axle trucks drive more often, which increases the number of trips but not the tonnes. Anyone who also wants to level the ground will find the follow-up work under grading.

Frequently asked questions about excavation in Vienna

Related services Skyline Bau

Related services

Send enquiry

Enquire directly here — fixed-price quote free of charge. Skyline Bau replies within 2 working days.