What drives the price of a perimeter drain?
| Factor | Effect |
|---|---|
| Basement depth | 1.25 m about DKK 5,750/m, 2.5 m about DKK 10,875/m (Bolius) |
| Access | a terrace, paving or a neighbouring house make it more expensive |
| Insulation | mineral wool is 5-10% dearer than polystyrene |
| Cause of the damp | if the water comes from the roof or gutters, start there, it is cheaper |
What should you do before buying?
- Check whether the basement was inspected in the tilstandsrapport.
- Look for signs: white deposits (efflorescence), flaking paint, a musty smell.
- Ask the seller in writing about water in the basement and repairs.
- Measure the house perimeter and multiply by the price per metre.
Calculator: drain price from the perimeter
Price of a perimeter drain around the house
Bolius prices based on Molio 2025, including labour and VAT. Get quotes from several contractors.
BoligCheck · DKK 299
Basement 'not inspected' or damp?
BoligCheck prices it in two scenarios and tells you what to ask the agent.
Order BoligCheck, DKK 299Delivery typically within 24-48 hours, in DA / EN / UA / AR
