Graf UK Ltd Reviews 1,210

TrustScore 4.5 out of 5

4.6

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Rated 5 out of 5 stars

Graf employees were extremely helpful from the first phone call I made to installation and commissioning. They were always on hand to answer any queries I had during the whole process, special thanks... See more

Rated 5 out of 5 stars

We purchased a water butt for the garden, delivery was quick and it looks great in the garden. We have now decided, that we want another, but prices have gone up massively. In fact another £97. That's... See more

Company replied

Rated 5 out of 5 stars

A first class service and product. We have installed one of 3 tanks and the service from Graf was outstanding. The commissioning appointment and paperwork was easy to make and do. The engineer tur... See more

Company replied

Rated 5 out of 5 stars

Thanks Graf, for helping me through the difficult process of choosing and installing a new Sewage Treatment Plant. Neville and Hadley were very helpful throughout the process. I would happily recommen... See more

Company details

  1. Manufacturer

Written by the company

Graf UK is the UK's fastest growing supplier of sustainable water management systems. We first started out as a specialist supplier of rainwater harvesting systems. Over the years as our knowledge and experience has grown, we have grown our product range which now includes stormwater attenuation & soakaway tanks, sewage treatment plants, septic tanks & cesspools, water butts and composters. We offer the full package of design, supply, installation, commissioning & maintenance to all of our customers whether that's for one-off private builds, to multiple-plot developments for housing associations, to commercial industrial units. In addition to our office in Banbury, Oxfordshire we have branches in Glasgow, Scotland and Galway.


Contact info

4.6

Excellent

TrustScore 4.5 out of 5

1K reviews

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Replied to 100% of negative reviews

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Rated 5 out of 5 stars

Graf employees were extremely helpful…

Graf employees were extremely helpful from the first phone call I made to installation and commissioning. They were always on hand to answer any queries I had during the whole process, special thanks to Ewan for his time and help. Installing a sewerage treatment plant is a very daunting task made easy by this excellent company. Thank you.

16 April 2026
Unprompted review
Rated 5 out of 5 stars

glad to have a Graf plant

I have had a difficult build but Graf team have been helpful throughout in resolving all matters to do with my graf one2clean plant and its commissioning.

7 May 2026
Unprompted review
Rated 5 out of 5 stars

Good ordering experience

Good ordering experience. More updates on delivery progress and expected delivery time would be have improved the experience. Product is good and was straightforward to install.

13 April 2026
Unprompted review
Rated 5 out of 5 stars

Very helpful in a difficult process

Thanks Graf, for helping me through the difficult process of choosing and installing a new Sewage Treatment Plant. Neville and Hadley were very helpful throughout the process. I would happily recommend them.

23 April 2026
Unprompted review
Rated 5 out of 5 stars

We purchased a water butt for the…

We purchased a water butt for the garden, delivery was quick and it looks great in the garden. We have now decided, that we want another, but prices have gone up massively. In fact another £97. That's 33% roughly. I get that its coming into summer season, but its a lot money. Can you do a discount for a returning customer?

2 February 2026
Unprompted review
Graf UK Ltd logo

Reply from Graf UK Ltd

Hi Lana, thank you very much for your review. We'd be happy to help out - could you please send us an email at info@grafuk.co.uk?

Thanks,
Charlie

Rated 5 out of 5 stars

Large water butt

A placed an order the product was not cheap but very good quality the delivery service was excellent I am very happy with the product and the service.

1 April 2026
Unprompted review
Graf UK Ltd logo

Reply from Graf UK Ltd

Hi Ruth, thank you for leaving a review. We really hope you enjoy your new water butts.

Rated 5 out of 5 stars

Almost unbelievably good service....

Almost unbelievably good service....

My wife and I are a little shocked with the speed and quality the service provided. Flavia responded very quickly to my initial contact and continued with clear feedback.

Albeit Godfrey was luckily in this part of the country, he phoned me to walk through the problem and then turned up exactly when he said he would. He was polite and friendly, and solved the issue extremely quickly.

Thank you Graf for the exceptional service you have provided.

Kind regards,

Ross M

30 March 2026
Unprompted review
Rated 5 out of 5 stars

A first class service and product

A first class service and product. We have installed one of 3 tanks and the service from Graf was outstanding. The commissioning appointment and paperwork was easy to make and do. The engineer turned up spot on time and did a great job commissioning the unit . The paperwork was sent over extremely quickly for the warranty . From start to finish we had a very high level of efficiency and service.

2 December 2025
Unprompted review
Graf UK Ltd logo

Reply from Graf UK Ltd

Hi Tracy, thank you for leaving a review. We're glad you enjoyed your experience with GRAF UK!

Rated 5 out of 5 stars

Recycled plastic

Quality water butt. Fast delivery and good communication. Love the fact that it is 100 per cent recycled plastic. Recommended

1 March 2026
Unprompted review
Graf UK Ltd logo

Reply from Graf UK Ltd

Thank you for the review. We really hope you enjoy your new water butt.

Rated 4 out of 5 stars

Bought the Graf green slim wall tank…

Bought the Graf green slim wall tank 330litres. Good thick plastic so I think it will last well.
Only complaint is the tap supplied is useless. sprays water all over the place (and I have checked it has no blockage) and the thread on the end is slightly different to standard UK fittings. I will need to empty water butt to replace.

11 January 2026
Unprompted review
Graf UK Ltd logo

Reply from Graf UK Ltd

Hi John, thank you for your review. Sorry to hear you're having issues with your tap. Would you like us to send a replacement?

Rated 1 out of 5 stars

Buy Graf Septic Tank at your peril !

After just 4 years service we had to pay just over £1,600 for repairs to our Graf one2clean septic tank which was £500 more than the original cost before installation costs. The Graf sales pitch says they last over 20 years if properly maintained. Our septic tank was serviced annually by an approved Graf supplier.
When we complained to Graf they really showed little interest or concern.

29 January 2026
Unprompted review
Graf UK Ltd logo

Reply from Graf UK Ltd

Hi Andy,

We’re sorry to read this and appreciate you taking the time to share your experience.

From our records, this related to an airlift issue reported last year on a system that was four years old at the time. Our technical team advised that the repair fell outside of the product warranty, and we understand this would have been frustrating.

In situations like this, it can sometimes be difficult to determine the exact cause, particularly where components may have been disturbed during routine maintenance or de-sludging. We did reach out via your servicing provider at the time to understand how you’d like us to proceed, but unfortunately, we didn’t receive a response.

That said, we genuinely don’t want any customer to feel unsupported. If you’re open to it, please contact us directly at info@grafuk.co.uk and we’ll be happy to review everything again with you.

Kind regards,
The GRAF UK Team

Rated 5 out of 5 stars

Purchased a 150l water butt.

Purchased a 150l water butt.
It was the cheapest on the market.
Delivered on time.
Couple of bits missing.
Rang the helpline.
They were delivered in a couple of days.
Totally stress free.
A pleasure to deal with.
Can't understand why you would shop elsewhere.

29 November 2025
Unprompted review
Rated 3 out of 5 stars

looks nice but

There was no indication of the actual delivery date, luckily I was in . The compost bin had two chunks broken out of it inside, I hope this is no indication of how long it will last in use. I assembled it and have started to use it as I am hoping the broken bits wont affect its use.
I did find it difficult to click the sections together, one corner only fastens as the top, and however much I pushed and maneuvered it would not click together at the bottom.

17 September 2025
Unprompted review

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