You should always write a contract. It makes it easier to determine what you have agreed upon in the event of a conflict.
The contract can be used for agreements on small and medium-sized work on real estate, but not for new housing or other work being done as part of this.
The basic amount (G) is per 1 May 2018 NOK 96 883.
The contract has been prepared by Standard Norge, the Consumer Council, the Consumer Ombudsman, Boligprodusentenes Forening, Husbanken, Huseiernes Landsforbund, Maler- og byggtapetsermestrenes Landsforbund, Norges Byggmesterforbund, Norges Huseierforbund, Norske Rørleggerbedrifters Landsforening – VVS and Norsk Teknologi.