Sam the engineer (#508) turned up to look at our heat pump when he said he would. He was very polite, helpful and explained what the problem was and what he had done to fix the issue. He even wore sho... See more
Company replied
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Review summary
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Reviews shaping this summary
Professional service the company was quick to send an engineer that was respectful polite and arrived on time he repaired my mums boiler it’s now working perfectly infact she said better than befo... See more
Company replied
Nick (Engineer number 829) did a fantastic job when he came out to fix an issue with my heat pump. He was friendly, extremely thorough, and took the time to explain everything he was doing so I felt... See more
Company replied
Engineer arrived very early on time Very professional engineer who has done a very good job after replacing the fan and G10 gasket We love your Valiant service plan and recommend it to all as its... See more
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Company details
Written by the company
With a proud tradition in the UK, Vaillant are a household name because of exemplary products and service. Vaillant operates with the ultimate aim of delivering greater warmth and comfort to your home.
Vaillant UK
Written by the company
- Comfort for your Home
- With a proud tradition in the UK, Vaillant are a household name because of exemplary products and service. Vaillant operates with the ultimate aim of delivering greater warmth and comfort to your home.
- A History of Excellence
- Vaillant are one of Europe’s leading heat technology manufacturers and innovators. Incorporating the finest German engineering with UK manufacturing for enhanced performance, quality and reliability.
- Smart Boilers
- Innovating and developing the latest technology such as vSMART, Vaillant boilers can be operated via your smart phone to achieve a perfect temperature wherever you are.
- Quiet Mark Accredited
- Vaillant is proud of the fact that our domestic boilers and renewable heat pump products have all been independently verified and judged to be one of the quietest products of their kind on the market, meaning our products not only perform to the highest standard but are as equally environmentally friendly.
Contact info
Nottingham Road, DE56 1JT, Belper, United Kingdom
- customercare@vaillant.com
- www.vaillant.co.uk
4.6
Excellent
23K reviews
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Top draw service.
Engineer was extremely thorough. Knew the fault and was really prepared. Additionally checked sensors and ensured boiler was working to the required efficiency. So clean and tidy. Overall, perfect!
July 10, 2026
Unprompted review
Reply from Vaillant UK
Thank you for your review, we are so pleased to hear about your positive experience with our engineer. We are proud of our team and appreciate you taking the time to share your feedback.
Should you need to contact us in the future, all our contact details can be found here: https://www.vaillant.co.uk/contact/contact/
Kind regards, Vaillant
#113 Glyn
We had a water leak in our boiler and called Vaillant at 8:30am. We were grateful to get a same day call out and Glyn arrived by 1:30pm. He was efficient and diagnosed the fault, as a leaking valve. Aside from fixing this he also noticed a faulty pressure sensor and replaced a total of three parts. We were very satisfied and impressed with the service provided.
July 10, 2026
Unprompted review
Reply from Vaillant UK
Thank you for your review. We're pleased to hear about your positive experience with our engineer and the efficient service provided. We appreciate you taking the time to share your feedback.
Should you need to contact us in the future, all our contact details can be found here: https://www.vaillant.co.uk/contact/contact/
Kind regards, Vaillant
Highly recommend.
Highly recommend.
Professional, clean & tidy.
Ben#151 was efficient, polite and kept me informed throughout the boiler service.
5 star service thank you.
July 10, 2026
Unprompted review
Reply from Vaillant UK
Thank you for your 5 * review. We are pleased to hear about your positive experience with our engineer.
Should you need to contact us in the future, all our contact details can be found here: https://www.vaillant.co.uk/contact/contact/
Kind regards, Vaillant
Excellent service
Excellent service. Sam the engineer was professional and very knowledgeable. He resolved the problem other engineers couldn't.
July 8, 2026
Unprompted review
Reply from Vaillant UK
We're pleased to hear that our engineer was professional and knowledgeable in resolving the problem. Thank you for your positive feedback.
Should you need to contact us in the future, all our contact details can be found here: https://www.vaillant.co.uk/contact/contact/
Kind regards, Vaillant
Engineer very helpful and polite
Engineer very helpful and polite. Response was very quick
July 9, 2026
Unprompted review
Reply from Vaillant UK
Thank you for your review, we are so pleased to hear about your positive experience with our engineer.
Should you need to contact us in the future, all our contact details can be found here: https://www.vaillant.co.uk/contact/contact/
Kind regards, Vaillant
Good it is greet
July 9, 2026
Unprompted review
Reply from Vaillant UK
Thank you for your review and for taking the time to provide us with your feedback.
Should you need to contact us in the future, all our contact details can be found here: https://www.vaillant.co.uk/contact/contact/
Kind regards, Vaillant
#113 Glyn
Glyn is an absolute superstar 5*+ and we feel a very valuable asset to Vaillant who we booked the repair visit through . Glyn has attended our property several times now and always goes above beyond - going the extra mile. He is very technically knowledgeable and personable. He is also very caring of our property. We have no hesitation in highly recommending Glyn - thank you Glyn
July 9, 2026
Unprompted review
Reply from Vaillant UK
We are delighted to hear such wonderful feedback about the service received from our engineer. It's fantastic to know that their technical knowledge, helpfulness, and care for your property made such a positive impression. We truly appreciate you taking the time to share your experience.
Should you need to contact us in the future, all our contact details can be found here: https://www.vaillant.co.uk/contact/contact/
Kind regards, Vaillant
Vaillant dhw fault
Had a local company to investigate an issue with the boiler dhw,they swapped out several parts but still not fixed,contacted Vaillant who sent an engineer within a few days,he diagnosed the issue quickly and ordered parts few days later came back ,fitted parts and checked all working ok,really polite, professional guys explained everything that had been done,excellent service.
July 8, 2026
Unprompted review
Reply from Vaillant UK
We are so pleased to hear about your positive experience with our service. We appreciate you acknowledging our engineer's efficient diagnosis and quick resolution. Thank you for your feedback.
Should you need to contact us in the future, all our contact details can be found here: https://www.vaillant.co.uk/contact/contact/
Kind regards, Vaillant
Ben (#151) did a really good job…
Ben (#151) did a really good job servicing our boiler. He was very polite and courteous throughout and clearly explained what he was doing and what he had done. He arrived on-time having phoned up earlier to let us know when to expect him. In summary he was very professional and efficient.
July 9, 2026
Unprompted review
Reply from Vaillant UK
Thank you for your review. We are so pleased to hear about your positive experience with our engineer. We are proud of our team and appreciate you taking the time to share your feedback.
Should you need to contact us in the future, all our contact details can be found here: https://www.vaillant.co.uk/contact/contact/
Kind regards, Vaillant
820 Fred.
820 Fred
Very polite and really good explanation re what the service included.
Arrived on time.
Good ambassador for Vaillant and will certainly use the company for the 2027 service.
Great job, thanks.
July 9, 2026
Unprompted review
Reply from Vaillant UK
Thank you for your wonderful review. We are pleased to hear about your positive experience with our service and that our engineer provided such a clear explanation. We look forward to assisting you again in 2027.
Should you need to contact us in the future, all our contact details can be found here: https://www.vaillant.co.uk/contact/contact/
Kind regards, Vaillant
Perfect service
Appointment promptly arranged.
Engineer arrived quickly and phoned ahead before arrival.
Problem identified and solved quickly and satisfactorily.
Useful suggestions provided for avoiding issues and for next service.
July 8, 2026
Unprompted review
Reply from Vaillant UK
We're pleased to hear about your positive experience, from the prompt arrangement of your appointment to the quick and satisfactory resolution of the problem. We appreciate you sharing your feedback.
Should you need to contact us in the future, all our contact details can be found here: https://www.vaillant.co.uk/contact/contact/
Kind regards, Vaillant
Loved it
Loved it. Shah is a great trainer, really enthusiastic and the venue is so modern and clean.
July 8, 2026
Unprompted review
Reply from Vaillant UK
Thank you for your wonderful review. We are so pleased to hear about your positive experience with our trainer and our modern, clean venue. We appreciate you taking the time to share your feedback.
Kind regards, Vaillant
Shah was a great trainer vaillant training
Shah was a great trainer. Very knowledgeable and patient.
Highly recommend
July 8, 2026
Unprompted review
Reply from Vaillant UK
We are pleased to hear this, we appreciate your kind words about our trainer's knowledge and patience. Thank you for your recommendation.
Kind regards, Vaillant
Simon #314 did a great job.
Simon #314 did a great job repairing our boiler under guarantee. I only reported the fault yesterday afternoon and he arrived today at 9am having phoned 20 minutes earlier to advise the time. He was very polite, friendly and professional and replaced the faulty part and even returned the batteries out of the old unit. All now working perfectly; many thanks for a faultless service and a great experience.
July 8, 2026
Unprompted review
Reply from Vaillant UK
Thank you for your review, we are so pleased to hear about your positive experience with our engineer. We are proud of our team and appreciate you taking the time to share your feedback.
Should you need to contact us in the future, all our contact details can be found here: https://www.vaillant.co.uk/contact/contact/
Kind regards, Vaillant
VAILLANT DOES NOT CARE ABOUT CUSTOMERS!
New Response from Vaillant to this post from a BOT. See, they can't even take the time to respond to their customers. Their customer service is DIRE! AVOID, AVOID, AVOID!!!
Response from Vaillant shows they are ONLY interested IN TAKING YOUR MONEY!
If you have a complaint against their equipment, and service provided the are COMPLETEY UNINTERESTED. If they think having TWO PARTS replaced within SIX WEEKS of the boiler being installed, that I'm going to have a confidence in the boiler, THEY'RE WRONG! Yes, I have a warranty on it but, it costs me time, which equals money plus the inconvenience of it all. They DO NOT TRY and accommodate the customer, and EVERYTHING is skewed in THEIR FAVOUR. AVOID, AVOID, AVOID.
July 7, 2026
Unprompted review
Reply from Vaillant UK
Thank you for your review, we’re sorry to hear about your experience. Thank you for providing further information so we could look into this with our Customer Care Team, the team has advised that they have already fully investigated this and been in touch with you directly, please refer to the correspondence from customercare@groupservice.co.uk for further information.
We apologise for any inconvenience caused with this.
Kind regards, Vaillant
Our lecturer Tobi was excellent.
Our lecturer Tobi was excellent.
He tough us in a very understanding way.
I got way with a lot more knowledge
July 7, 2026
Unprompted review
Reply from Vaillant UK
Thank you for your 5* review. We are so pleased to read your comments, it's much appreciated.
Kind regards, Vaillant
Really helpful tuter Toby and learned…
Really helpful tuter Toby and learned the new stuff.
July 7, 2026
Unprompted review
Reply from Vaillant UK
We are so pleased to hear that you found our training team member helpful and were able to learn new and valuable information.
Kind regards, Vaillant
Spent a day on the installation and…
Spent a day on the installation and servicing course learning about the ecoTEC plus range.
Toby provided a lot of information both practical and theory on best practice.
Recommend to all engineers.
July 7, 2026
Unprompted review
Reply from Vaillant UK
We are so pleased to hear you found our installation and servicing course on the ecoTEC plus range beneficial. We appreciate your positive feedback and recommendation to other engineers.
Kind regards, Vaillant
Incredible service
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
July 7, 2026
Unprompted review
Reply from Vaillant UK
Thank you for your review and for taking the time to provide us with your feedback. Should you need to contact us in the future, all our contact details can be found here: https://www.vaillant.co.uk/contact/contact/
Kind regards, Vaillant
Very useful course
Very useful course, well delivered and great facilities. Shah was a great help, excellent knowledge and delivered the course brilliantly. Thank you.
July 6, 2026
Unprompted review
Reply from Vaillant UK
We're pleased to hear that you found the course useful and well-delivered. We appreciate your positive feedback regarding the excellent knowledge and delivery of the course content.
Kind regards, Vaillant
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