My perfectly functioning boiler was serviced by a Viessmann engineer (for £136) and then immediately stopped working and gave fault codes, literally hours after the service. To come back and ‘fix the problem’ they want another £350 from me!!!! Yes, to fix a problem caused by their service! Avoid avoid avoid.
2 years ago
Viessmann Limited has a
4.3
average rating
from
1,036
reviews
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