Large areas
A refund for your commercial property?
Commercial properties on a combined sewer can often unlock significant refunds for disconnecting roof and parking areas. The infiltration trench can be big – and it typically needs room for infiltration.
← See all scenariosFrequently asked questions
Do the same refund rates apply as for private homes?
The rates depend on the utility and can vary between household and commercial customers. The calculator uses the same basic model and gives an estimate.
Does the infiltration trench have to be on our own plot?
Yes, normally the infiltration must happen on your own plot. For commercial properties with large parking areas, this can mean sizeable installations.
Can we disconnect in phases?
It's often possible to carry out the project in phases, e.g. the roof first and the parking area later. It eases the finances and spreads out the work.