Boiler stopped working one day after installation. There was subsequently poor co-ordination between installation company and Viessmann, with each blaming each other. Two Viessman engineers inspected boiler, identified fault and provided replacement part but refused to install or fix. I was left without working boiler for nearly a week after installation.
Issues like this should be handled behind closed doors - customers should not have to mediate between companies.
3 years ago
Viessmann Limited has a
4.3
average rating
from
1,036
reviews
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