More room height for the basement: the cost of excavation

Older houses in particular often have a very low basement in which an adult can hardly or not at all stand. Your basement can be excavated for better utilization. Does this make sense in all cases - and what does this measure cost??

First things first: the statics!

The basement is an important building block of your home and excavation work can lead to serious structural problems. Take the help of an accomplished statistician and don't dare to go it alone!

  • Also read - drainage basement
  • Also read - Building a single-family house with a basement: What are the costs?
  • Read also - basement walls

Your project requires expert planning in order to avoid settlement damage as best as possible. Discuss everything exactly with your structural engineer and follow the instructions exactly when you do your own work.

Not only does the floor have to be excavated, the masonry also needs to be extended downwards. At the same time, professional waterproofing work must be carried out, otherwise water will penetrate your house.

Digging out basements: prices vary widely

The excavation of a cellar is always a very individual project that cannot be measured with a flat rate. Get an offer from a specialist building construction and civil engineering company.

Be prepared for the fact that the total price corresponds roughly to that of a new cellar. Count on around 20.000 to 70.000 EUR.

Excavation of a cellar as a cost example

The basement of an old building is to be excavated by 50 cm.The specialist company charges 250 EUR per square meter for the lowering work of the floor, while the civil engineers work on the walls for 350 EUR per running meter.

Cost overview price
1. Secure and lower 40 m walls 14th.000 EUR
2. Excavate 100 square meters of soil 25th.000 EUR
3. Sealing work 6th.500 EUR
total 45.500 EUR

Don't forget the pipe system!

In addition to excavation work, you will likely need to modify your piping system. Calculate the costs of re-laying the cables from the outset.

Tips & Tricks Have a close look at whether there are tangible reasons why your basement is built so low. Is there solid rock under the ground?? Or a water vein? This can make excavation work more difficult or even prevent it.