flat-rate for the maintenance, troubleshooting and repair of various individual heating appliances and domestic hot water production and gas and sanitary CMV, On order form for replacement work following disasters or with improvements

maintenance with full guarantee of the individual means of heating and production of domestic hot water and vmc GasFixed for the maintenance, troubleshooting and repair of various individual heating appliances and production of domestic hot water and VMC gas and sanitary, on order form for in particular replacement work following disasters or with improvements