Contract warranty (free of charge) and post-warranty service of electric boilers and flow heaters of the brands Dražice DZD, Stiebel-Eltron, Tatramat, Ariston, W term, Tesy, Q termo. Delivery and installation of new boilers. Karlovy Vary Region, Klášterec, Kadaň, Louny. Opinions for insurance companies in the settlement of claims.