In December 2023 I had a Grundfos shower pump Model A98950217 TYPE STR-2.0C fitted. It was installed to replace a Mira pump that had worked perfectly for 12 years. It worked for a about 15 m... See more
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See what reviewers are saying
Noisy pump that sounds like a door slamming downstairs followed by sounds of aliens communicating. If dishwasher is running it will sip water every few minutes which makes the Groundfos start up and y... See more
Company replied
UPS3 installed Oct 2024,not used for few months,went to put on for Hot Water,not working.Works for heating,same water same system,was told needs servicing every 6 months or less and won't work if not... See more
Company replied
Beware of the alpha1 15-60 GGES3 When installing underfloor heating this pump was foisted upon us by the contractor. Never got it to work. It is meant to self aerate but there is no way to do so. The... See more
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Company details
Written by the company
Grundfos has a global presence and is a full range supplier within pumps for heating, air conditioning, irrigation, industry, groundwater, boosting and water treatment.
Contact info
Poul Due Jensens Vej 7, 8850, Bjerringbro, Denmark
- grundfos.com
1.5
Bad
156 reviews
Replied to 90% of negative reviews
Typically replies within 1 week
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A positive response
In December 2023 I had a Grundfos shower pump Model A98950217 TYPE STR-2.0C fitted.
It was installed to replace a Mira pump that had worked perfectly for 12 years. It worked for a about 15 months and then started making a lot of noise. It then stopped pumping completely. The installers came to examine it and decided it was seized and must be replaced but was out of warranty. I think a replacement should be offered as the amount of use this product has provided is very poor in a fairly short time.
I received a positive response from Grundfos and they have agreed to supply a new pump despite the expiration of the warranty. I think this is a very fair outcome and appreciate the offer.
20 December 2025
Unprompted review
In my personal opinion
In my personal opinion, the working environment felt quite restrictive.
My impression was also that employee compensation did not seem competitive.
This is solely my personal experience and perspective.
27 November 2025
Unprompted review
Reply from Grundfos
Thank you for your feedback. We acknowledge your perspective and appreciate you taking the time to share it. Best wishes, Maria
Grundfos UPS4 commissioning problem.
Fitted a new UPS4 onto an existing unvented system with some trapped air.
Pump limped into life and wouldn't even pump with enough pressure to clear trapped air from coil in hot water cylinder - let alone make enough effort to pump radiator circuit of 4 rads.
Spoke to Grundfos customer service who treated me as as if I've never fitted a pump, assuring me that the UPS4 is s "smart pump" and that air prevents the pump pumping at full speed.
This may be true, but ...
The UPS4 pump seems to be lacking a commissioning setting to put it on full power to perform an initial setup of a heating system.
Wasted one and a half hours trying to get the pump to kick into life.
Should have opted for a basic pump instead - would have got the system running in 5-10 minutes!
UPS4 pump is no improvement on earlier products.
Nobody at Grundfos of the 3 individuals I complained to seemed to think there's an issue.
Would steer clear of this pump given choice.
6 January 2026
Unprompted review
Reply from Grundfos
Hi Michael,
Thank you for sharing your thoughts on the UPS4. We appreciate your feedback and the opportunity to clarify how the pump works.
The UPS4 is designed as a smart pump, which means it automatically adjusts its speed based on system conditions. However, trapped air can significantly affect performance during initial setup.
To help in situations like this, we recommend the following commissioning tip:
Close the valve on the flow side of the pump and allow gravity to flood the pump and remove air.
With the valve closed, you should see the wattage display increase as water fills the pump.
Once the wattage rises sufficiently, slowly open the valve on the flow side while the pump runs at full speed. This should clear the air and restore normal operation.
Please email us at grundfos-uk@sales.grundfos.com. Alternatively, please share your contact details, and our colleague Tom will reach out to you directly.
Best wishes, Maria
I have purchased two grundfos SP7-23,total failure
⸻
I have purchased two Grundfos SP7-23 borehole pumps over the past year, with the most recent purchase made just two months ago. Unfortunately, one of the motors has already developed a phase failure, requiring a replacement motor. Despite having a John Tech control box installed to protect the pump, the fault occurred on one of the Grundfos motor phases.
It is disappointing that Grundfos appears to attribute the issue to external factors rather than acknowledging a possible motor winding defect. Grundfos has long been regarded as a premium and reliable brand, but the manufacturing quality seems to have declined in recent times.
17 October 2025
Unprompted review
Reply from Grundfos
We’re sorry to hear about your experience and appreciate you bringing it to our attention. Grundfos is committed to sustainable solutions and continuous improvement. Please share full installation and fault details with our service team via https://www.grundfos.com/za/support/contact-service?tab=contact-service
They can guide you through the next steps. Grundfos remains committed to quality and customer satisfaction, and we’ll do our best to resolve this swiftly. Thank you for your patience and understanding.
Happy to take your money even happier to do nothing for it
This company has charged me £231.00 to send someone out to investigate a faulty pump which is under warranty and after doing absolutely nothing apart from identifying that a pump seal had failed (which he assumed was caused by an underground pipe leak) he then advised they will need to order parts and speak to a manager to see if this falls outside warranty with no proof of any external leak at all.
We cancelled the return visit after deciding the pump was not worth the hassle causing more issues and used constant electricity from never turning off to avoid any further costs! To then be told the full £231.00 will be taken as the issue fell outside of warranty (no proof whatsoever of external leak) and the failed seal still broken with water coming out of pump....to top things off the site report shows that "customer was not present" to sign off the report when in fact I was there the entire time and have a video on my phone of the leak from failed seal.
I will be taking this further and simply.... looking at the other reviews one customer had 5 faults in a year, speaks volumes.
Don't ask me to reach out to your support email either because I already have and this was the response I got.
18 September 2025
Unprompted review
Reply from Grundfos
Thank you for taking the time to share your experience. We're genuinely sorry to hear about the difficulties you've encountered and understand how frustrating this situation must be.
We’d really like to look into this further and clarify whether the visit was carried out by our service team or a third party, as this affects how warranty cases are handled. If you're open to it, please call us directly on 01525 850000 or share a contact number, so we can reach out to you. Speaking with you will help us better understand what happened and explore how we can support you.
We appreciate your feedback and hope to resolve this with you as quickly as possible. Best wishes, Maria
I have been fitting Grundfos pump for…
I have been fitting Grundfos pump for many years. Based on their reputation as market leading pumps.
Since the introduction of GRUNDFOS UPS3 15-50/65 we have had replace at least 5 faulty pumps in the last year. These pump were either under 1 Year Old or 2 max. These have been replaced at the expense of my business both in time and replacement pumps.
At this point the penny has dropped that these have design fault and will have no choice but to find alternative manufacturer. I hope Grundfos are a company that realises that they have problem and need to make changes or their reputation will really suffer.
24 September 2025
Unprompted review
Reply from Grundfos
Hello Simon, thank you for sharing your feedback and for your long-standing trust in Grundfos pumps. We’re genuinely sorry to hear about your recent experience with the UPS3. This is certainly not the impression of Grundfos we want you to be left with.
Please be assured that we take product quality and customer satisfaction very seriously and we want to investigate your case further and support you directly. If you could contact our customer support team with your details, we’d greatly appreciate it. Please email us at grundfos-uk@sales.grundfos.com.
We want to reassure you that we are committed to maintaining the high standards Grundfos is known for, and we’re always here to help if you have any concerns.
Thank you again for your feedback. Maria
Bureaucratic nightmare
SOLOLIFT2 WC-3 Macerator pump stopped working within warranty. First of all, trying to find a number to call them on was a mission in of itself...when I did get through, I was told they need the part number and manufacture date...which is on the macerator, in the holiday let, with guests in...was told that they would need to send someone out...i just want a spare part, I'll fit it myself! It really shouldn't be so hard to provide customer service...
19 September 2025
Unprompted review
Reply from Grundfos
Hello, thank you for your feedback and we're really sorry to hear about your experience.
To ensure we provide the correct replacement part and uphold warranty standards, we do need the product's part number and manufacture date. These details help us identify the exact model and ensure compatibility, which is quite standard practice across the industry.
We appreciate that accessing the unit in your situation was difficult, and we’re sorry that made things more stressful. Our aim is always to support our customers as quickly and efficiently as possible, whether that’s through sending a technician or helping with self-installation. If you still need assistance, please don’t hesitate to reach out on 01525 850000 or by email grundfos-uk@sales.grundfos.com
We’re here to help.
Best regards,
Grundfos Customer Support Team
Want to see if I can buy spare plug to…
Want to see if I can buy spare plug to fit there Alpha 2 auto detect .tried filling out their form on website which said failed try later,an hour of trying I gave up found phone no for head office after ringing and pressing relevant buttons was told info available on web site Good bye.
Correct I will not not be back for your products
Peter F
10 September 2025
Unprompted review
Reply from Grundfos
Hi Peter,
Thank you for your feedback.
We are sorry to hear about your experience, it is not the level of service we aim to provide. We would like to understand more and see how we can help; you are welcome to call at (+44) 1525 85 00 00.
We’d also like to clarify that the spare plug you are referring to is not a Grundfos-manufactured product. While we aim to support all users of our pumps, accessories not made by Grundfos may not be listed or supported through our standard channels. Nonetheless, your experience has been shared with our support team so we can improve how we assist customers in similar situations.
Thank you very much.
Kind regards, Amalie
Grundfos UPS3 15 50 65
UPS3 installed Oct 2024,not used for few months,went to put on for Hot Water,not working.Works for heating,same water same system,was told needs servicing every 6 months or less and won't work if not used all the time.Last one lasted 10-15 years,no maintenance needed.Told to get serviced or refund,most say same problem,design problem clearly so don't buy them or Grundfos stuff as no help,don't work properly,and who wants to fix it themselves(if able) or pay to do so every 6 months?Our survey said...
29 August 2025
Unprompted review
Reply from Grundfos
Thank you for taking the time to share your experience. We’d like to clarify that the UPS3 is designed to operate reliably across heating and hot water systems, and regular servicing is not typically required every six months. In fact, based on our records and a recent conversation, it appears this may not have been a pump issue after all. If you spoke to our team, we hope everything has now been resolved. If not, or if you’d like to discuss further, please let us know—we’re here to help and ensure you get the support you need.
Best wishes, Maria
Worst customer services
Worst customer services, we have multiple pumps at our premises, but cannot get any meaningful help from Grundfos direct. A new pump is £2000, yet the service parts are £2200, total theft, yet they refuse to respond or help in any way whatsoever - avoid this company at all costs
12 August 2025
Unprompted review
Reply from Grundfos
Hi Magdy. We're really sorry to hear about your experience, it’s certainly not the level of service we aim to provide. We’d like to understand more and see how we can help. Could you please message us your contact details? Please send to: uki@servicesupport.grundfos.com
Our team will look into it right away. Thank you for bringing this to our attention.
Kind regards, Helen
My pump(Grundfos STN-4.0 B) has started…
My pump(Grundfos STN-4.0 B) has started to cycle on/off. I had a plumber come to investigate and he said it isn't a leak anywhere so suggested I call Grundfos to get the valves changed as most likely the issue. I rang the Dublin number to check it in but have been told I have to go to the premises in Ballymount to get a quote but I need to bring the pump with me so they can see what the problem is. I asked for an email address or phone number but was told they don't have either. I asked if they had a phone in the building and was told NO. I want a quote to replace the 2 valves and asked for this before I remove the pump but was again told that I would have to bring the pump to the premises. Beggars belief how these guys are in business. Wish I had looked at Trust Pilot reviews before I bought this pump. Haven't seem a worse reputation.
31 July 2025
Unprompted review
Reply from Grundfos
Thank you for taking the time to share your experience. We're genuinely sorry to hear about the difficulties you've encountered with our pump and the frustration caused by the service process.
At Grundfos, we strive to provide reliable products and responsive support, so it's disappointing to learn that your expectations were not met. We understand how inconvenient it is to be asked to bring the pump to our Ballymount premises without being offered alternative contact options. Please know that this feedback has been shared with our team to help improve how we communicate and support our customers. Can we please ask you to share your contact details with us, so we can call you directly from the head office? If you could please email it to me at mtelenga@grundfos.com, I will have my colleague contact you straight away. Many thanks, Maria
Need Customer Support on the phone
I bought 2 Grundfos model 595916 1/25 horse power for me and my Mom's house.
I installed the bypass valve in the sink cabinet on 2nd floor.
The problem is when I used a sink or flushed the toilet on first floor, I heard a sound (toc, toc, toc) in the wall.
I removed the bypass valve and no dripping sound anymore.
I replaced the bypass valve, then I heard a dripping sound again.
Called GRUNDFOS BUT NO ONE ANSWER.
24 June 2025
Unprompted review
Reply from Grundfos
Hi Eric,
Thank you for your feedback. We are sorry to hear about your recent experience, and we understand your concerns. We are currently addressing the issue and working to resolve it to your satisfaction.
Best regards, Amalie
No technical information available at their customer no-service
Cannot offer any technical information regarding their pumps. The agent can only offer links to authorized dealers. Don’t waste your time with their customer no-service.
18 June 2025
Unprompted review
Reply from Grundfos
Thank you for sharing your feedback. We're sorry to hear about your experience with our customer service, as it's important to us to provide comprehensive support, and it's disappointing to learn that we didn't meet your expectations.
We would like to assist you further by providing the technical information you need. Please contact us directly at dbsamericas@grundfos.com, and we'll make sure to connect you with a knowledgeable team member who can help.
Your feedback is crucial in helping us improve our services, so thank you for letting us know about this issue.
Kind regards, Ty
Rubber Gasket failed on my ALPHA2 L…
Rubber Gasket failed on my ALPHA2 L 15‑50 130. Spoke to an agent on the website chat for a replacement. Their solution......its OEM and they do not have it or can recommend a part. Go buy a new pump! Well it will not be a Grundfos I said and ended the chat. Shocking! A new pump is in the range of £150! All for a rubber gasket that is prone to failure often anyways.
11 June 2025
Unprompted review
Reply from Grundfos
Thank you for taking the time to share your feedback, and we're truly sorry to hear about your experience.
From what you've described, it sounds like the pump in question may be an OEM (Original Equipment Manufacturer) version, which is typically supplied as part of a third-party system such as a boiler or solar setup. These OEM models are commissioned specifically by the system manufacturer, and unfortunately, that means we don’t hold spare parts like gaskets for them directly.
That said, we completely understand your frustration—especially when it comes to something as seemingly simple as a gasket. If you happen to have the part number or any additional details, we’d be more than happy to look into it further and see if there’s anything we can do to help.
We’re here to support where we can, and we’d really appreciate the opportunity to assist you further if you're open to it, please email us at grundfos-uk@sales.grundfos.com.
Best wishes, Maria
Strongly Advise Against Buying Grundfos
I strongly advise people not to buy a Grundfos pump for their homes. We have had three pumps (3.0 bar twin) in the past three years in my mother's home - she is the only person living in the house, so the pump is not getting excessive use. Each time Grundfos comes to look at the broken pump, they replace it. However, we had two separate plumbers look at the pump and confirm that Grundfos is fitting a reconditioned pump and passing it off as a new pump. The service is also bad - with our latest issue, the pump completely stopped working, it took them a week to have someone look at it. The plumber replaced it and it immediately started leaking. We logged four tickets with Grundfos stressing the urgency given the leak was causing damage. It has now been nine business days, and still no call out to look at it. We asked Grundfos to take the pump out and issue a refund; they refused and said they would only replace it. We are based in Ireland and are being bounced between the UK and Ireland offices when reporting the issue. Each time we contact them, we are asked to log another ticket. Please do not make the same mistake as we did - buy another brand of water pump.
29 May 2025
Unprompted review
Reply from Grundfos
Thank you for taking the time to share your experience—we’re truly sorry to hear about the ongoing issues with your mother's pump and the frustration this has caused.
At Grundfos, we take product reliability and customer service seriously, so it's disappointing to hear that we’ve fallen short in this instance. While we don’t handle direct sales or installations, we absolutely want to ensure that our products perform as expected and that any issues are resolved promptly and professionally.
I’d like to help escalate this further. If you're willing, please send us a direct message at grundfos-uk@sales.grundfos.com with your case reference number and contact details so we can look into this with our service team and ensure the right people are following up.
Best wishes, Maria
Grundfos pump
I purchased a Grundfos pump from a local distributor.
It has stopped working and my Klargster septic is full.
I have had to call out a septic tank company to empty my unit.
It is in warranty and still waiting for TNT paperwork after three days .
I am beginning to doubt the professional service and the name of Grundfos. Paying a lot of money for a pump and getting poor service . Unfortunately I have had to purchase another pump which was not Grundfos. 😕😕
23 April 2025
Unprompted review
Reply from Grundfos
Thank you for sharing your experience and bringing this to our attention.
To better assist you, could you please provide us with the following details:
1. The specific model of the Grundfos pump you purchased.
2. Any contact details or reference numbers related to your communication with our support team or the distributor.
We understand the urgency of your situation, especially with your Klargster septic system being affected. Our goal is to resolve this matter as quickly as possible. Please email us at grundfos-uk@sales.grundfos.com with the requested information, and we will expedite the process to ensure you receive the necessary support.
We appreciate your patience and understanding, and we are committed to restoring your confidence in Grundfos.
Best wishes, Maria
Very expensive ann not good , broken just after two yrs
Very expensive and the last less that tree years , warranty cover only two years , for something very expensive i am aspecting long life . choose better brand this is a rip off
8 April 2025
Unprompted review
Reply from Grundfos
Thank you for taking the time to share your feedback. We are truly sorry to hear about your experience with our product.
We strive to provide high-quality products and exceptional customer service, and it is disheartening to learn that we did not meet your expectations.
We would like to investigate this matter further and see how we can assist you. Please reach out to our customer service team at grundfos-uk@sales.grundfos.com with your purchase details.
Your feedback is valuable to us, and we will use it to improve our products and services. We hope to have the opportunity to restore your faith in our brand.
Thank you for bringing this to our attention.
Maria
Annoying adverts across a range of…
Annoying adverts across a range of internet sites covering them do I cannot read them.
4 April 2025
Unprompted review
Reply from Grundfos
Hi,
Thank you for sharing your feedback. To enhance your browsing experience, especially on platforms like Facebook, you can use ad blockers. Ad blockers are tools that can help you minimise or eliminate adverts while you browse.
You can also adjust your ad preferences on Facebook to reduce the number of personalised ads you see. This can be done through the settings menu on your Facebook account
We hope these tips help improve your browsing experience. If you have any further questions or need assistance, please feel free to reach out to us directly at grundfos-uk@sales.grundfos.com
Thank you, Maria
Thirty year old CRE4-120 BUBE Grundfos…
Thirty year old CRE4-120 BUBE Grundfos Deep Well Ejector pump (apparently discontinued) needs shaft seal and chamber stack kits. However Grundfos keep claiming these kits are unavailable. I am surprised at this because Grundfos make so many iterations of chamber stack kits and shaft seal kits that would surely have common dimensions that would be suitable. I even found the right chamber stack kit on their website but when I showed them they claimed it was discontinued. This conflicts with the website information.
Their website claims under: Our purpose and values:
"We pioneer solutions to the world’s water and climate challenges and improve quality of life for people".
My challenge to Grundfos is: pioneer the facilitation of the right spare part kits for my Grundfos pump.
20 March 2025
Unprompted review
Reply from Grundfos
Dear John,
Thank you for your feedback. We understand your concerns regarding the pump. We would like to clarify that the CR2 /4/8/16 series pumps have indeed been out of production since 2004. Over the past 20 years, we have maintained stock for spare parts, but unfortunately, these are no longer available. The CR2 series, specifically, is an older design, and we no longer have the tooling to produce parts for these models. The CR2 series has now been replaced by the more advanced CR5 series.
The reason the older models are still listed on our website is to assist customers in selecting a suitable replacement from the current series.
We do still have the mechanical seal available, and it is included in our current price list. You can find it here: Kit, Shaft Seal - 405096 | Grundfos
https://product-selection.grundfos.com/products/service-partkit/kit-shaft-seal-405096?pumpsystemid=2624696081&tab=variant-specifications
We apologise for any inconvenience this may have caused and appreciate your understanding. If you need further assistance, please do not hesitate to contact us on ausales@sales.grundfos.com or submit a service request here: Contact service | Grundfos https://www.grundfos.com/au/support/contact-service.html?tab=CONTACT-SERVICE
Best regards,
Grundfos
Be aware installers!!!
Be aware installers!!!
Purchased macerator for a client in December. Traveled 40 miles to install. I finished installing the product and tested it before it was released. The product was leaking water. I realized it was coming from behind, but I didn't understand what it was because the space was tight. I disassembled it and when I looked at it, the product was broken.Toolstation told me to contact Grunfos as they could not take returns for health and safety reasons. Then I called the call center. (also disappointing as I paid my mobile provider £15 for this call) Grunfos spoke to Toolstation on my phone, and they accepted the return. The new product arrived, and I drove the 40 miles again. This time there was no problem. Our new tactic broke down after 3 months. Grunfos says
we can return the product. However, no one talks about labor costs and travel times. Bad experience for me.
20 March 2025
Unprompted review
Reply from Grundfos
Thank you for sharing your experience with us. We sincerely apologise for the inconvenience and frustration you encountered with the macerator purchase and installation.
We regret that the initial product did not meet our quality standards and that you had to go through the hassle of disassembling and returning it.
This is not a fault we often see, and it is not a known issue with our products. Without knowing the exact part that was leaking or seeing images of the unit, it is difficult to provide a precise explanation. We are glad to hear that the replacement product initially worked without any issues. However, we are deeply sorry to learn that it broke down after three months. Please email our main customer service team at grundfos-uk@sales.grundfos.com with your situation, and we will do our best to assist you.
We appreciate your patience and understanding. Thank you for bringing this to our attention, and we hope to resolve this matter to your satisfaction.
Kind regards, Maria
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