TOP 10 questions customers ask before earthworks in 2026
Excavations for foundations, sewer connections, drainage systems, septic tanks, retention tanks, and land preparation — earthworks are among the most important phases of any construction project. A properly prepared subsoil determines the durability of the structure, the stability of the foundations, and future maintenance costs.
At RUMANA.SK, we carry out earthworks, excavation works, and provide excavators and mini excavators across Slovakia and the Czech Republic every day. With every project, we encounter similar questions from customers, investors, and construction companies. That is why we have prepared an overview of the most frequently asked questions along with practical answers based on real projects.
A major advantage of our services is that we provide free transport of machinery throughout Slovakia and the Czech Republic — regardless of whether the project is in Žilina, Bratislava, Trenčín, Prague, Brno, or a smaller municipality.
1. How much do earthworks cost in 2026?
The price of earthworks depends on:
- scope of excavation works
- type of subsoil
- accessibility of the site
- used machinery
- need for soil removal
- compaction and material delivery
There is a difference, for example, between a simple excavation on flat terrain and work on rocky or sloped land, where execution is technically more demanding.
We most often carry out:
- foundation excavations
- sewer connections
- water supply connections
- electrical connections
- septic tank installation
- retention tanks
- drainage systems
- parking areas
- subsoil compaction
- terrain modifications
The correct selection of an excavator or mini excavator can significantly reduce both project time and total costs.
2. Is a mini excavator or a large excavator better?
Each type of excavator has its advantages and ideal use.
Mini excavator
Ideal for:
- tight spaces
- between houses and fences
- utility connections
- small excavations
- garden works
- residential landscaping
Large crawler excavator
Suitable for:
- large-scale excavations
- foundation works
- parking areas
- large soil volumes
- major terrain modifications
- industrial and development projects
For larger projects, a powerful excavator is often more cost-effective due to significantly faster execution.
3. How long do excavation works take?
The duration depends on:
- size of the construction project
- type of subsoil
- site accessibility
- weather conditions
- scope of excavation
- length of utility lines
- volume of soil
Common works such as:
- sewer connections
- water connections
- septic tank installation
can often be completed within one day. However, this always depends on terrain complexity, soil type, trench length, site access, and overall scope. In rocky, sloped, or difficult terrain, the work may take longer.
Foundation excavation for a family house usually takes 1–3 days depending on complexity.
4. Why is proper subsoil compaction so important?
Poor compaction is one of the most common and most expensive construction mistakes.
It can cause:
- sinking paving
- cracking concrete
- parking surface deformation
- damage to utility connections
- foundation issues
- water retention on the property
We use professional compaction equipment and high-quality gravel to ensure a stable, durable, and long-lasting base.
5. When should sewer and water connections be installed?
The best time is before final landscaping and before completing:
- paving
- walkways
- parking areas
- retaining walls
- terrain finishing
- fencing
Additional excavation afterwards is significantly more expensive and often damages already completed surfaces.
Proper timing of earthworks can significantly reduce future costs and speed up the entire construction process.
6. What is the difference between a concrete and a plastic septic tank?
Concrete septic tank
Advantages:
- high strength
- long lifespan
- suitable for difficult subsoil
- stability in groundwater conditions
- high load resistance
Plastic septic tank
Advantages:
- lower weight
- easier handling
- faster installation
- simpler transport
The choice depends on:
- soil type
- budget
- groundwater level
- plot size
- project requirements
7. Where do we operate and are we available in your area?
We provide earthworks across Slovakia and the Czech Republic. Thanks to our own excavators, mini excavators, trucks, and organized logistics, we are able to carry out projects in both large cities and small villages.
And the major advantage?
We provide free transport of machinery throughout Slovakia and the Czech Republic — regardless of location.
(List of regions and cities – unchanged meaning, translated conceptually)
We operate in all major regions of Slovakia and the Czech Republic, including Prague, Brno, Ostrava, Zlín, Olomouc, and many others.
If your location is not listed, contact us. We carry out earthworks, excavations, drainage systems, utility connections, and landscaping flexibly almost anywhere.
8. Can you save money on earthworks?
Yes — often significantly.
The biggest savings come from:
- proper planning
- combining multiple works
- efficient use of machinery
- correct machine selection
- quality materials
- minimizing machine relocation
Free machine transport also saves hundreds to thousands of euros on larger projects.
Cheap solutions often become more expensive later due to repairs or additional excavation.
9. What do we provide?
We offer complete turnkey earthworks:
- foundation excavations
- foundation footings
- sewer connections
- water connections
- electrical connections
- drainage systems
- retention tanks
- septic tanks
- parking areas
- paving works
- retaining walls
- gravel delivery
- soil delivery
- compaction
- terrain modifications
- site preparation for construction
We use modern excavators, mini excavators, and professional equipment for small and large projects across Slovakia and the Czech Republic.
10. Why not underestimate site preparation?
Proper site preparation is the foundation of the entire construction.
Most problems arise during earthworks and are very expensive to fix later:
- incorrect slopes
- poor subsoil quality
- inadequate drainage
- insufficient water management
- improper backfilling
- weak compaction
- low-quality gravel
Professionally executed excavation work significantly extends the lifespan of the structure and minimizes future problems.
Earthworks without unnecessary complications
At RUMANA.SK, we provide earthworks, excavation works, excavators, mini excavators, sewer systems, septic tanks, retention tanks, and landscaping in a modern, efficient, and quality-focused way.
We operate across Slovakia and the Czech Republic, and we provide free transport of machinery regardless of location.
If you are looking for a reliable company for earthworks, excavation works, excavators, or mini excavators, we will be happy to prepare a solution tailored to your needs.