Fault, error code, no hot water: diagnosis and repair of all common brands – from 6 am to 8 pm.
The heating stays cold, the display shows a code, the pressure keeps dropping – and it is always the coldest week of the year. Our technicians know the error codes of all common manufacturers, carry the usual spare parts in the van and tell you before the repair what it will cost. If the system is too old for a repair to make sense, we say so.
Often a wrong heating curve, a stuck valve, a defective circulation pump or air in the system.
Ignition electrodes, gas valve, fuses or the control board – a quick diagnosis narrows it down.
Leaking expansion vessel, dripping safety valve or a leak in the pipework.
Every code points to a component or state. We know the codes of all common brands and bring the right part.
Knocking, whistling or humming: from air in the system to worn bearings to limescale.
Defective diverter valve, dirty plate heat exchanger or a faulty sensor.
Spare parts are available, the technology is current. A repair is almost always the economical choice.
Repairs get more expensive, parts scarcer, consumption is 20–40% above a new system. We calculate honestly whether a replacement with up to 80% funding is the better option.
By phone or form. Brand, year, error code and symptoms help us prepare.
We give you the next possible slot – for a total breakdown in winter as fast as we can, also in the evening or at the weekend.
Systematic check, reading the fault memory, locating the cause. You learn right away what is wrong.
Before we repair, you get a transparent estimate – and decide whether we go ahead.
After the repair we test the whole system and all safety values. Warranty on the work, manufacturer's warranty on parts.
For acute faults we try to be with you within 24 hours, often the same or the next working day. On the phone we give you a realistic time.
It depends on the fault and the parts. Simple repairs such as a new ignition electrode or topping up water are in the low three figures; a new control board or pump more. You get an estimate before we start.
Air in the system, a stuck thermostat valve, a defective circulation pump or a wrong heating curve. We find the cause on site.
Rule of thumb: systems under 15 years can usually be repaired economically; over 20 years a replacement often pays off because modern systems use 20–40% less energy and are funded.
Yes, we work independently of manufacturers – Viessmann, Buderus, Vaillant, Wolf, Junkers, Bosch, Brötje, Weishaupt, Stiebel Eltron and more.
Yes, the statutory warranty on our work, and manufacturer's warranty on the installed parts.
Let's find out together. Contact us for a no-obligation consultation.
