Air conditioningBuilding technology/ building services (building automation)Gas installationHeatingRefrigerationRemediation worksRenewable energiesSanitarySauna constructionSolar panelsTiles and panelsVentilation
Crane work and rentalFaçade worksPlumbing workRemediation of hazardous substances / Asbestos abatementRemediation worksRenewable energiesRoof greeningRoof sealRoofing worksSolar panelsWooden construction