Basement Renovation: How much does it cost?

Basement renovation costs vary greatly depending on the project. The price range usually falls within the three- to four-digit range.

If you want to renovate your basement to modernize it, fix potential damages, or improve energy efficiency, you should expect various cost factors. Total costs depend on the type of work and the size of your basement. Average basement renovation costs usually fall within the three- to four-digit range.

Cost factors:

• Labor costs (depending on skill and experience)

• Travel costs of workers

• Material costs

• Additional costs for plastering and painting

• Basement size

• Possible follow-up issues

Funding options:

Yes, you can have your basement renovation funded by KfW Bank. It is important that the renovation includes insulation and improves the energy efficiency of the house. If so, the loan can also cover additional renovation measures. Relevant KfW programs: 430, 151, 152.

Cost of installing heating in the basement:

Installing heating can save long-term costs and prevent issues like moisture efficiently.

Renovation costs:

Basement insulation costs:

Waterproofing basement walls:

Drying the basement:

• Moisture is common in basements.

• Requires professional drying equipment and labor, plus equipment rental and electricity costs.

• After drying, walls and floors are sealed to prevent future moisture and mold.

• Small leaks: seal with caulking.

• Full interior waterproofing: uses liquid paraffin (much more expensive).

Basement inspection costs:

• Hiring an expert to evaluate issues: 250–300 €.

• Experts can recommend suitable measures for long-term improvement.

Example calculation – 50 m² basement renovation:

A family wants to renovate a damp 50 m² basement, make it livable, and install heating.