VIESSMANN BELGIUM Reviews

This year, in full winter, put in a new fan, a week without heating. Now 6 months later, fan broke again. But Viessmann does not know when a new one can be delivered .... In the meantime already a week without heating, without hot water. Thought you were the Rolls Royce of the boiler ???? By the way, the email address you indicate in your reviews will not be responded to.

Viessmann had an excellent reputation but this is no longer the case at present: impossible to obtain an intervention before a delay of 5 days or more, many technical problems related to the probe, great difficulties for the installers to obtain a spare part within a reasonable period of time (7 days and more), the installers no longer want to intervene for a repair and automatically refer to Viessmann technical service, where it is impossible to have an urgent repair, ... My advice: choose a brand of boiler offered by an installer who you are sure will be there quickly the day the boiler has a problem.

Extremely bad service - do not install their solution. Our heating is broken for 7 days now and the company refuses to send a technicuan, saying they first need to hear from the person that installed the heating. The person that installed the heating is not available and so we are stuck with no heating and extremely rude client service from Viessman. We learnt that the competitor Bosch offers 10 year quaranty and comes within 24h. Viessman service is basically bad joke and I strongly recommend avoiding it.

Despite the somewhat long intervention time during the full Covid period, I still give Viessmann 4 stars. We have turned our frustration into a positive view and wish the after-sales service every success in this difficult transition period.

Poor service, support is not answering the phone or emails, the only response I had was to be patient and that I will be contacted "soon".
It is extremely hard to be patient in a freezing apartment without hot water and heating for over 10 days now.

Their internet advertising is very loud. One speaker of our monitor no longer works. In addition, had complaints from neighbors.

This company has no respect

Big company, poor support. Unable to deal with issues or even produce a report of the issue. No actually established processes. No timely responses.