Viessmann’s earns a 3.0-star rating from 0 reviews and 2 complaints, showing that the majority of homeowners are somewhat satisfied with heating systems.
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Defective product
We purchased a Viessmann wb2b-19-60 condensing boiler from Ecomfort which had a factory defective when the shipping box was opened and installed. Viessmann company had a limited life time warranty on the product and 2 Years on parts from the date of Install. We have been trying to get Ecomfort and Viessmann company to stand up and honor our WARRANTY, but as of this date September 23, 2021 they both are trying to get away with possible consumer fraud. I will strongly suggest you not do business with Ecomfort or Viessmann .
Desired outcome: Replace my defective product
QUALITY
I BOUGHT VITOLEM-100W CONDENSED COMBY 3 YEARS EGO. I ALWAYS EXPERIENCED PROBLEM WITH THE COMBY. LEAKAGE FROM TAPS AND SAFETY DRAIN LINE . INSUFFICIENT HEATING, HIGH COST OF SPARE PARTS AND SERVICING. POOR SERVICING. I UNDERSTAND THAT LOCAL PRODUCTS ARE HALF COST AND MORE QUALIFIED IN TURKEY.
The complaint has been investigated and resolved to the customer’s satisfaction.
Is Viessmann Legit?
Viessmann earns a trustworthiness rating of 100%
Highly recommended, but caution will not hurt.
We found clear and detailed contact information for Viessmann. The company provides a physical address, phone number, and email, as well as 4 social media accounts. This demonstrates a commitment to customer service and transparency, which is a positive sign for building trust with customers.
Viessmann.pl has a valid SSL certificate, which indicates that the website is secure and trustworthy. Look for the padlock icon in the browser and the "https" prefix in the URL to confirm that the website is using SSL.
Viessmann.pl has been deemed safe to visit, as it is protected by a cloud-based cybersecurity solution that uses the Domain Name System (DNS) to help protect networks from online threats.
Several positive reviews for Viessmann have been found on various review sites. While this may be a good sign, it is important to approach these reviews with caution and consider the possibility of fake or biased reviews.
Viessmann.pl regularly updates its policies to reflect changes in laws, regulations. These policies are easy to find and understand, and they are written in plain language that is accessible to all customers. This helps customers understand what they are agreeing to and what to expect from Viessmann.
About Viessmann

Overview of Viessmann complaint handling
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Viessmann Contacts
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Viessmann phone numbers+48 801 002 345+48 801 002 345Click up if you have successfully reached Viessmann by calling +48 801 002 345 phone number 0 0 users reported that they have successfully reached Viessmann by calling +48 801 002 345 phone number Click down if you have unsuccessfully reached Viessmann by calling +48 801 002 345 phone number 0 0 users reported that they have UNsuccessfully reached Viessmann by calling +48 801 002 345 phone number
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Viessmann emailsmarketing@viessmann.pl100%Confidence score: 100%
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Viessmann addressKarkonoska 65, Wroclaw, Poland
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Viessmann social media
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Checked and verified by Nick This contact information is personally checked and verified by the ComplaintsBoard representative. Learn moreJun 30, 2025





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