Vaillant UK Reviews 

Incredible service. The boiler stopped working (pcp problem). The engineer arrived the next morning, replaced the pcp, all now working again. Engineer incredibly polite and efficient. So impressed

Very useful course, well delivered and great facilities. Shah was a great help, excellent knowledge and delivered the course brilliantly. Thank you.

Very informative training course. Shah was very knowledgeable and helpful.

Mike #724 engineer come today he came to sort out my heating. He also explained the app to us. Thank you very much.

Excellent service from Leo (Agent 213). He was friendly, professional, and arrived on time. He serviced my Vaillant boiler efficiently, explained everything clearly, and left everything clean and tidy. A great experience from start to finish. Highly recommended!

Helpful on the phone. Accommodated my need for a quick response as there is a severely disabled person on the house.
Engineer 536 Gavin pleasant and helpful

Outstanding customer care!!!!!! I really would like to praise Brian 621 Engineer and Mark 505 Senior Tech Manager These guys have been absolutely amazing!!! I have a 10 year warranty with Valliant and started to experience issue's with my boiler Brian replaced a part in my boiler but unfortunately this did not resolve the issue so escalated this to Mark who immediately phoned me to book an appointment to visit me and inspect the boiler himself On inspection he told me my boiler was to be replaced with a brand new one!!! Mark immediately sorted out the replacement and arranged a date with me for both himself and Brian to install the replacement one The customer care l have received from them both has been impeccable along with extremely professional,friendly, and peace of mind being replaced with a brand new boiler Can't thank them both enough and they are an absolute credit to Valliant!!! l would also like to praise the Customer Care Team!!! Highly highly recommend purchashing from Valliant!!!

Outstanding service from Leo Engineer 213 5 star ⭐️ service. He’s a star

Truly dreadful service. My plumber identified a leak in my hot water tank (1 year old Unistore 300) on the 22nd of June. A Vaillant engineer was out the next day, but gave the impression he hadn't seen many of this type of tank, spent a lot of time on the phone, and left after misdiagnosing the leak as an installation issue. The installers have been out twice since and confirmed that the leak is not external to the tank. A second (much better) Vaillant engineer came out on the 1st of July and confirmed that the tank was leaking and would be replaced under warranty. Since then I have been trapped in call centre purgatory, unable to get a straight answer to the apparently simple question: When will you replace the tank? The people in the service centre can't even tell me when they'll be able to answer the question, let alone actually fix the problem. Meanwhile I'm stuck here with no hot water for the foreseeable future.

Efficient and friendly engineer. No time wasted, came did the job and left my house as he found it. The engineers #508

Our engineer was tom 710
He was polite explaining what he had done and what needs doing
He cleaned up afterwards
Good service
Thank you

Absolutely fantastic experience, brilliant advice from Tom.

Booked yesterday serviced boiler today! Excellent polite professional service!

Just like a circle,true to it's centre,a promise made and a promise kept.The service i received was first class from start to end.All layers of communication and personnel were simply exemplary.Engineer 822 was the final icing on the cake.

Andy visited to sort out an issue with our air source heat pump cylinder. He diagnosed and sorted the problem whilst explaining everything to us in a clear, easy to understand manner.

Andy was prompt, polite and professional. Would highly recommend!

Valliant ecotech plus 618 fitted 2022. After fitting the boiler we experienced regular and increasing loss of pressure, resulting in the boiler shutting down. We were advised to manually refill the system. When this started happening every week or so we called the Valliant engineer under the warranty. He told us the boiler was not the cause of the problem and that there must be a leak in the heating pipes. After paying £670 for a specialist leak service, it was determined there was no leak in the heating pipes and the boiler was responsible for the pressure loss. A different engineer attended from Valliant and appears to have fixed the boiler having replaced parts. When we raised a complaint regarding the unnecessary expense of the specialist leak service with Valliant they said we caused the pressure loss by overfilling the system when it lost pressure and declined any compensation. Furthermore there is no alternative dispute resolution service for Valliant and escalation of a complaint to the CEO or MD results in the complaint being returned to the customer care team.

Engineer turned up in a very professional manner, was very helpful and skilled, can only recommend.

Nick the Vaillant engineer arrived on time to service my ASHP. He was friendly, courteous, knowledgeable and helpful.

Left a 90-year-old vulnerable person with no heat. Shocking negligence.

Unbelievably poor service and a total lack of empathy. Our boiler broke down (F.20 error), and after initially agreeing a same-day call-out over the phone, they called back stating since the boiler is situated in the loft, the next available appointment is in two days. I explicitly explained that we have a vulnerable 90-year-old occupant in the home, but they completely refused to expedite the call-out.

To make matters worse, they informed me they don't even have a vulnerability or escalation team to deal with high-risk situations. It is terrifying that a major heating provider has zero protocols in place to protect the elderly. I've had to pay for a private local engineer to come fix it instead. Vaillant's customer service is a bureaucratic wall that doesn't care about the safety of its customers. Absolute disgrace.

Happy to provide account details for verification to management should this review actually be picked up, but I highly doubt it considering my experience this morning.