Viessmann Limited Reviews

4.5 Rating 776 Reviews
87 %
of reviewers recommend Viessmann Limited
Based on 776 reviews
Shipping & Delivery
Delivery Methods
Own Driver, Courier
On-time Delivery
Accurate And Undamaged Orders
Greater than 93%
Customer Service
Communication Channels
Telephone, Live Chat, Email
Queries Resolved In
Under An Hour
Read Viessmann Limited Reviews

About Viessmann Limited:

The Viessmann Group is one of the leading international manufacturers of heating systems, industrial systems and refrigeration systems. Founded in 1917, Viessmann remains a family-owned business, however, now has over 12,000 employees across the world.

With 23 production divisions in 12 countries, subsidiaries and representations in 74 countries, and 120 sales offices around the world, Viessmann is an internationally orientated company.

Our commitment to the highest standards of manufacturing has led to our systems being awarded a multitude of awards over the course of our history. Recent award wins include the Red Dot Award: Product Design, the Trophée des Usines, the iF product design award, the Number 1 Trade Partner and Good Practice Energy Efficiency.

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01952 675000



Hortonwood 30, Telford, Shropshire

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Awful company, booked in for fixed price service & repair on a Vitodens 200-W, £360+VAT upfront, had no hot water and a leak on condensate pipe, Veissmann Engineer turned up & straight away said he's not fixing the leak, at no point when booking in did they say they will not fix the leak otherwise I would of gone elsewhere, he got the hot water back on by carrying out a service and left leaving the boiler pipework still dripping. Anyway when we called up to complain, they basically said there happy to still charge the £360+VAT because they got the hot water back on and because we paid upfront when booking, there not interested in refunding us anything because there happy with the service they provided, even though they only fixed half the problem. They even terminated the phone call because they didn't like listening to a complaint about there service. Now I've got to pay another company to come out and finish the repair, they have also not provided an invoice and not sent me the service certificate.
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Not impressed so far. I am a GasSafe engineer. Have fitted three Veissmann products. First product has issues after one year. Veissmann refuse to help blaming everything but, their own product. Second product was complicated to install (Poor installation instructions). Tech help are extremely rude and unhelpful. Third product also complicated to install (Also, poor installation instructions). Similar rudeness from Tech Help.
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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.
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No problem getting the Viessman installed but try to get someone when you need a repair. NO ONE will call back, NO ONE from VIESSMAN responded to my emails. Furnace works fine when it is 40 degrees out, but once it gets below freezing it is useless. Have the thermostat, which is new, cranked up to 85 and it is just barely registering 60 in the house. I would NOT recommend this product only because you cannot get anyone to work on it once it is installed.
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My combi boiler was fitted at the end of December 2020. It failed on 21st Jan 2022. Viessman arranged for an engineer to solve the problem the following Tues. He was temporarily successful, but after 3 or 4 hours it failed again. After long waits on the telephone I spoke to an operative who sent me an email stating that an engineer would ring me between 8 00 and 10 00 am Friday. It didn't happen. I have spent the day emailing and phoning and listening to promises that they would ring back. That hasn't happened either. Now I am again stuck on the telephone waiting for someone to answer. I am horrified that a supposedly reputable firm treats its customers with such contempt. I may add that I am almost 80 years old and feel the cold badly. Desperately bad service. You should be ashamed.
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Shame on you Viessaman. I have a Viessaman boiler and I am still paying for it. I have had constant issues with it, leaking boiling water, leaking boiling rusty water etc, unfortunately I have voided the guarantee due to covid restrictions I have not been able to have the boiler serviced. When I rang gas safe engineers in my area, no one would touch it! My boiler gave up the ghost last week, the customer service team were able to use their psychic powers to diagnose the problem over the phone. I am on the heart transplant list, with rapidly failing heart and organs, the customer service call handler spoke to me in a condescending manner when I explained my predicament, so I'm now left with no heating or water in the middle of January. Their stance and attitude towards a terminally ill person is moraly reprehensible.
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after almost a week of Vi Care failure, Viessmann sent a message without anytime commitment about fixing the issue- This is not a customer service at all. Shame on you Viessmann !
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Very poor technical support - tried to blame everyone except themselves. Rude and argumentative on the phone- would not recommend
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Dear Alistair Please send any feedback you have regarding your experience with the Technical team to so we can investigate. Many thanks Viessmann
This company is a joke. All I want is a service, already booked in but cancelled as the engineer couldn't make it, no problem I thought. But its a serious problem. They ignore emails, promise to ring you back but don't bother, leave you on hold promising to be back, time after time, but you have to hang up after 15 minutes. Never ever again. I'll find someone who can offer a better service
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Hi Wyn Please can you email the details of the issues you encountered when booking your service to: so we can look into this please. Kind regards Viessmann
The boiler provides a very good heating service but a very poor hot water service. I am sure that my water bill will be higher than my gas bill!
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Dear John We would not expect you to be having hot water supply issues with your new Viessmann boiler. Please contact your installer to rectify these issues or book a warranty call out to diagnose the issue by contacting Aftersales: 01952 675060 Kind regards Viessmann
My boiler has broken down twice in the three years since installation. After the last so called repair the hot water keeps going cold and even at the hottest I can still keep my had under the running tap. Shower is also affected.
Helpful Report
Hi, sorry to hear you've experienced issues with the boilers. If your boiler is still under warranty you can book a callout so Viessmann's engineers can diagnose the issue. Please call 01952 675060 to speak to Aftersales. Alternatively you can contact the Technical department for insight into how to fix the issue: 01952 675070 Kind regards Viessmann
8 years ago, we had a brand new Viessmann Vitodens 100-W system boiler for our central heating only. It went wrong within days and we had the plumber back fixing it 4-5 times over the first couple of months of having been in. After that, we had the plumber round at least twice a year, often more, with various faults and it never managed to heat the house properly even when working as it should. Eventually, we got tired of having such a useless boiler and had a new Vitodens 200-W system boiler installed just over a year ago. Not the combi, the commercial grade system boiler, only to run the central heating. Hot water has always been provided by the Aga (which has been working faultlessly throughout). I wish I had insisted on a different brand after years of suffering the 100-W. The new boiler started flashing a fault after less than 2 months. Bearing in mind it had been installed in the middle of the summer, this was its first actual use. It was fine on the first couple of days, but then came up with a fault. We had the plumber back more often than having hot meals with yet more fault codes flashing and the boiler not working. It spent most of the lockdown flashing fault codes, even through the summer. It hasn't worked for more than half an hour at a time for nearly 8 months. Bearing in mind it's only about 15 months old, that's pretty useless. I'm never ever having another Viessmann product for as long as I live. First one was bad enough and needed scrapping after just 7 years and the new one is even worse.
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Hi Please could you email with your contact details so we can look into this for you asap? Kind regards Viessmann
The installation of the boiler took 7 weeks from start to finish after many missed appointments. The installer also failed to install correctly causing water to flood through the light sockets in the bathroom ceiling. It was a very traumatising experience. Also the manual for the thermostat is very unclear and I still have not managed to set it correctly. Very very upset and unhappy about the service.
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Still waiting a reply to my email dated 03/12/19.......................... I should have been issued with a 10 year Warranty NOT 5. I know 5 years is your standard warranty, however, my fitter had a voucher for an additional 5 years which he completed and sent to yourselves once the install was complete. Please issue me with a 10 year Warranty.
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Dear Dan, We are sorry to hear you have believe you have not received the correct warranty period. To rectify this issue, you can contact our Warranty Department who can arrange for this to be posted out to you or sent by email if not already done so. Telephone: 01952 675 051 Email: Best Regards, Viessmann
I have no problem with the product but your customer service is terrible. I have had two boilers fitted in different properties last sep/Oct. I receive regular emails from yourselves but have never received anything relating to warranty. This has caused me many problems whilst selling my other property. I require some proof of warranty
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Dear Dan, We are sorry to hear you have not received your warranty documentation. To rectify this issue, you can contact our Warranty Department who can arrange for this to be posted out to you or sent by email if not already done so. Telephone: 01952 675 051 Email: Best Regards, Viessmann
Shocking customer experience. Viesmann are lying about the services offered
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Dear Simon, Sorry to hear you are not happy with the service you have received from Viessmann. Can you please provide full details of your complaint so this can be looked into for you? Best Regards, Viessmann
What a junk , service in service out, this error that error . Stay away from this brand. Yesterday were sitting without heating today sitting without hot water. This time no error ,service phone off. FU
Helpful Report
Dear Donal, We are sorry to hear you have been experiencing problems with your boiler. To get this looked into for you, can you please send full details of your complaint and contact information to Best Regards, Viessmann
Absolutely shocking service. I have had a boiler 3 years and i have had nothing but major issues with it. They have refused to fix the boiler 3 times whilst its under warranty at a cost to myself and the thing needs replacing! I am disgusted at their customer service and absolute ridiculous poor quality boilers! I will be taking this matter further.
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Dear Kate, Thank you for taking the time to provide your feedback and we are sorry to hear you have been experiencing problems with your boiler. Can you please send full details of your complaint to aftersales-uk@viessmann so this can be looked into for you? Best Regards, Viessmann
Impossible to set controls you need to be a lawyer to understand settings
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Hi, We are sorry to hear you are experiencing problems with the controls on your boiler. Please contact our Technical Department who will be happy to assist you. Telephone: 01952 675 070 Email: Best Regards, Viessmann
I have had a Viessmann Vitodens 100-W 35 kW boiler for almost 3 years in a 2 bed bungalow. I am yet to get a single drop of hot water out of it! At best warm water. Since installation it has broken down twice and I have used three separate engineers (two of them were Viessmann approved). I sent the guarantee paperwork to Viessmann and got nothing back. I can provide proof of purchase and photo. This boiler does not boil water. It is troublesome and absolutely rubbish. I regret buying it and strongly recommend against it.
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Hi Camille, We are sorry to hear you are experiencing problems with your boiler and for any inconvenience this has caused you. Can you please send all relevant information to the details below so this can be looked into for you and dealt with as soon as possible. Telephone: 01952 675060 Email: Kind Regards, Viessmann.
Viessmann Limited is rated 4.46 based on 776 reviews