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Viessmann Limited Reviews

4.3 Rating 1,058 Reviews
83 %
of reviewers recommend Viessmann Limited
4.3
Based on 1,058 reviews
Shipping & Delivery
Delivery Methods
Own Driver, Courier
Average Delivery Time
Within 5 Days
On-time Delivery
Greater than 92%
Accurate And Undamaged Orders
Greater than 91%
Customer Service
Communication Channels
Telephone, Live Chat, Email
Queries Resolved In
Under An Hour
Customer Service
3.4 out of 5
Read Viessmann Limited Reviews
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Phone:

01952 675000

Email:

info-uk@viessmann.com

Location:

Hortonwood 30, Telford, Shropshire,
Hortonwood 30, Telford, Shropshire
United Kingdom
TF1 7YP

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Replaced a Keston boiler that we had for 25 reliable years. It was only replaced because the case got a hole in it. Our heating engineer recommended the Viessman as a quality product. I bought it, he fitted it and serviced it every year. Two months after the warranty ran out the main PCB failed. So it only functioned for 5 years 2 months and cost £380 for part alone. When I eventually got through to customer service they quoted T's & C's and flat right refused to discuss it and put the phone down on me. It's the worst customer service I've ever encountered. I was civil and polite during our interaction so was surprised to find myself talking to myself without even a goodbye I certainly will never buy a Viessman for any of my properties ever again if this is symptomatic of their product and service☹️
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Posted 3 weeks ago
Terrible customer service: no one answers the phone or responds to email. This product was highly recommended by our radiant heat installer. Our boiler as part of radiant heat system is currently under warranty but faulty so had to be turned off in the middle of winter. Each "expedited" part ships over 4-5 days and then another part is needed and then another 4-5 days and we are on day 12 of no heat or hot water in the middle of winter. I have yet to speak with anyone. In this day of overnight shipments, here are no distributors outside Rhode Island so everything is delayed. DO NOT PURCHASE FROM THIS COMPANY.
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Posted 2 months ago
broken down twice just outside of the 2 year warranty, broke down first time paid £400 plus and then within 6 weeks broke down again and they are saying I have to pay again the same amount for another call out. Trash boilers. Next time i will install Worcester boilers as my previous properties boiler is going strong for over a decade.
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Posted 2 months ago
Really disappointed by boiler. No hot water four times in as many years. This is despite annual servicing. Viessmann engineers very difficult to get hold of. Would not recommend this boiler.
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Posted 4 months ago
Boiler keeps breaking down. Viessmann doing everything other than replace the defective part on their 2 year old boiler. Their warranty is worthless
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Posted 1 year ago
Thank you so much for great service from your engineer. Daniel mcwade was informative and solved all my problems.
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Posted 1 year ago
4 days for a warranty call-out children with no heat and water. Outside temperature 3C. Disgusting!
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Posted 1 year ago
Terribly overpriced and overrated boiler. We’ve had ours for six years and it has now failed 21 times. Many/most components have been replaced over the past several winters and so far this winter it has not failed, but we do not trust it.
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Posted 1 year ago
Terrible durability and Poor User Experience I regret purchasing the Viessmann boiler due to its unreliable app connectivity and overall frustrating usage. The app is supposed to offer convenient control, but it rarely works as expected. Constant disconnections, errors when trying to adjust settings, and an unintuitive interface make it nearly impossible to use. Even when the app does connect, there’s a significant delay in response from the boiler. Additionally, the boiler itself is overly complicated to operate. Simple tasks like adjusting temperature or setting schedules feel like a chore, and the system isn’t user-friendly at all. For such an expensive product, I expected much better performance and functionality. I would not recommend this to anyone looking for a hassle-free heating solution.
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Posted 1 year ago
State Of the art expensive combi boiler fitted 4 yrs ago trouble free until now - no central heating. 2 weeks waiting for the Valve replacement part, can't get them from Germany, only one in stock in UK... .Apparently our plumber has 3 similar systems with broken valves. But these systems are massively over complicated, a complex touch screen for the boiler control designed by a boffin for other boffin Gen Z's.... when all you want is an on/off and manual over-ride, not a NASA cockpit.
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Posted 1 year ago
We purchased a Viessman boiler in 2021 under the expectation they are a decent brand. Unfortunately 2 out of 3 annual services have resulted in the same part braking when the front cover was removed. Leaving us with no hot water or heating for a week each time, as the part doesn't seem to be stocked as standard in any of the main plumbing supply merchants. Viessman customer service is also very snotty, not very understanding and wipe their hands of any responsibility. Even when the boiler was installed, the installer was unable to complete the install on his first or second attempt. It took 2 other engineers to finally get it running! Would not recommend anyone to buy this brand due to the issues we've had.
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Posted 1 year ago
Hi my boiler was fitted on 1/05/2024 boiler takes ages for water to get to sink downstairs water meter spinning around costs rising, when water arrives average heat, bathroom takes ages to obtain hot water anyway put bath on took ages as per normal, sadly house radiators started to get warm , contractor called engineer diverter valve replaced,sadly water still takes ages to get to sink downstairs and luke warm then goes cold, bath takes ages to get warm and boiler is in bathroom water is warm in bath only time I got hot water was through normal shower attachment, engineer coming out this week customer services said must make you aware could be a callout fee £144.00 I said it's the boiler which is at fault not anything else crazy , I would like to know we're I stand of either them replacing boiler with a new boiler or refund myself of £2500 and leave the bloody boiler and I will replace boiler with a decent one .I've owned many houses and had many new boilers which worked perfect . Probably have to take this company to court
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Posted 1 year ago
The back up service is dreadful. If you ring and they are busy , no call back is offered. Instead they cut you off and ask you to call back later. Also they have 7 email addresses. I received a message from them and was given the option of ringing, or sending an email to reply. I replied using email. I received a message to say this email address did not exist. I wanted to request that the engineer brought a thermostat with him. I am 73 years old and have been unable to shower or use my central heating for 5 days. Tomorrow (the 6th day) they are due to fix it.
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Posted 1 year ago
Great product but very low customer service, if you are looking for customer service when something goes wrong with the product do not go close to Viessmann. as a contractor, very, very disappointed.
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Posted 1 year ago
New flagship model Viessmann 222 boiler installed in August 2023. Nov 2023 it developed a fault and required the installer to replace the pump. Apr 2024 another fault left with no hot water or heating. Although connected to the internet from the point of install, it seems there's a totally separate process required to get the "warranty". So instead we have the standard manufacturers warranty... But this is where it's extraordinary - that warranty they claim is from the point which the merchant first had it in stock !!! Not when we bought it, or installed it !! And guess what, that stock date was just outside 2 years !! So we have no warranty at all, for a boiler that's less than 8 months old. Welcome to Viessmann. Appallingly unreliable products. Appalling service. You simply couldn't make it up.
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Posted 1 year ago
We purchased a Viessmann 100-W heat pump because the company had a good reputation for service. So far we have been sorely disappointed. The unit was installed months ago, by a partner company called Energy Solutions here in Prague. We puchased the most expensive warrant for 10 years. A technician was supposed to contact us to explain how the unit works and do some fine tunning. It never happened. Two weekends ago, the unit stopped producing hot water. With no indication of a malfunction. We spent a weekend with cold water. On Monday, a nice person from Viessmann came. It was the technician who supposed to the final installation months ago. So he did that and tried to fix the problem even if he was not from the same part of the company. After four hours the machine was working again but he did not tell us what was wrong. The following Friday, the machine failed again. We call the same person, but he was on vaccation, and said that we should call the help line. We called Friday evening. We called Saturday Morning We called Saturday Lunch We called Sunday Morning We called Sunday Evening We called Monday Morning No one answered. We called the general number, the person there said to e-mail. We emailed. We called again, the lady said we will call you back and solve it today. Nothing. We received an email to schedule an appointment four days later. We called again, they said email. We called again, they said we were about to call you. Which was patently false as were calling 1 minute after closing time. They said we will solve it soon. As I write still no hot water. I can understand that sometimes a company has trouble. But I dislike communication that is not honest with the customer. I will post this widely and update as things progress.
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Posted 1 year ago
Viessmann Vitodens 050 installed September 2020. To date I have replaced the expansion vessel and the pump at my own expense. The heat exchanger has now failed. I would reccomend avoiding these boilers at all costs. Very poor build quality and not fit for purpose.
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Posted 1 year ago
Just don't. Our 2.5-year-old broke down with a lockout issue and two plumbers including British Gas were unable to fix it because the parts must be on special order with 10 days delivery time. Their own support offered an appointment in weeks time. It is not acceptable with products that people rely on, during the cold months.
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Posted 2 years ago
Boiler 2020 installed on a government grant due to my disabilities and the pump has now gone,I have no money to repair this and I’m classed as a vulnerable person so sat here in the freezing cold ,please phone me 07757714356 as I’m desperate!
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Posted 2 years ago
Had a Veissmann boiler fitted 9 years ago by one of their approved installers. Nothing but problems since … costing several hundred pounds per call out, usually annually. They will diagnose and fix some things but not the peripherals (e.g flue, cellar pump). Never got to the bottom of the problem and now considering replacing the boiler to get some peace. While the Viessmann engineer is fab, I wouldn’t touch their product again or recommend it to anyone.
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Posted 2 years ago
Viessmann Limited is rated 4.3 based on 1,058 reviews