Kernrechtsfrage
Whether the sole arbitrator had jurisdiction over the disputed work-price claims under the arbitration agreement
Extrahierter Entscheid
The arbitration agreement also covered financial claims arising from the construction contracts, so the arbitrator had jurisdiction.
Extrahierte Begründung
The cantonal court found that the parties had actually understood the written clauses to include such disputes; that subjective interpretation prevails and makes the written agreement valid.