The core activity of Roth Metall & Bau GmbH is the provision of mobile locksmith and welding services on construction sites, including: welding work for various metals, spriessungen (installation of temporary or long-term reinforcements), cutting work for sheet pile walls, assembly of prestressed anchors for excavation pit securing and slope securing, and cutting of steel sheet pile walls. The company offers these services as a mobile construction site locksmith, i.e. they come directly to the customer's construction site to perform the required work.