Big Yellow Self Storage Co Ltd Cardiff reviews

★★★★★ 5/5

Google

I’ve had a great experience with Big Yellow Storage. The site is extremely secure, with controlled access, clean units, and proper monitoring in place, which gives real peace of mind when leaving anything valuable. The staff are genuinely friendly and approachable, nothing is too much trouble, and they make the whole process straightforward from the moment you walk in. Pricing is clear, the facilities are well‑maintained, and moving in and out is simple thanks to good layout and easy parking. Overall, it’s a reliable, professional storage option that does exactly what you need without any hassle.

Andrew · 14 February 2026

★★★★★ 5/5

Google

I had a brilliant experience at Big Yellow recently. A special shout out to James, Sian and Marcus, who were outstanding from start to finish. They took the time to help me work out exactly what size storage unit I needed and were incredibly patient while I went back and forth making decisions. The front-of-house team were friendly, professional and genuinely helpful, which made the whole process so much easier. Excellent service all round, highly recommended!

Daryl · 28 November 2025

★★★★★ 5/5

Google

Absolutely first class customer care, the perfect space to store my belongings, knowing that they were in secure hands. Any problems I had were addressed immediately, the team at Big Yellow Storage Cardiff listened to my queries and offered thoughtful solutions. All of the staff, Sian, Marcus, James, Neil and Poppy were friendly, efficient and professional. A BIG THANK YOU to all of you, very grateful indeed.

E · 14 January 2026

★★★★★ 5/5

Google

Had a great experience with Big Yellow Storage recently. I called to ask about storage options and spoke to Poppy, who was absolutely fantastic from the get-go. She was friendly, patient, and really knew her stuff. Poppy took the time to walk me through everything in detail and made what could’ve been a stressful process feel completely straightforward. She genuinely went above and beyond, even followed up afterwards to make sure everything was going smoothly. It’s rare to come across someone so professional and easy to talk to. She really is a star and a credit to the team. Also want to give a quick mention to Shan, who was really nice and added to the warm, welcoming feel. If you’re thinking of using this branch, I’d 100% recommend it, and if you get to deal with Poppy, you’ll be in excellent hands

Kendra · 8 August 2025

★★★★★ 5/5

Google

Met Poppy today to book a space at BY Storage. Very friendly, informative and helpful. Needed a last minute room change which was no issue. Very good customer service and would highly recommend. Also spoke to Neil a few days ago to arrange the booking who was also very lovely and informative and helpful. Which shows its a good culture of giving good service at BY Storage. Would highly recommend using them for your Storage needs.

Danny · 14 September 2025

★★★★★ 5/5

Google

Poppy was amazing when explaining how the system works and so clear in her instructions. She went above and beyond to make sure it was a good experience and answered all the questions I had. She was so friendly and made everything so easy. Cannot recommend this storage place enough if they have a place free!

Izzi · 14 July 2025

★★★★★ 5/5

Google

Neil and Sian were great and helped for a very smooth process. I would recommend this everyone cheap price and great security.

Sujay · 24 March 2026

★★★★★ 5/5

Google

I had such a wonderful experience at Big Yellow! Sian was incredibly friendly and super helpful throughout the whole process. They offer a variety of storage services, I can buy boxes and tape right there. It made everything so easy!

Geo · 14 September 2025

★★★★★ 5/5

Google

Had the best experience - moving back from London to Cardiff was super stressful but Sian was the most helpful and make everything super easy from check in to check out - would definitely use again!

Julie · 14 October 2025

★★★★★ 5/5

Google

Poppy is so lovely and knows her stuff! Great place very safe

Allie · 14 March 2026

★★★★★ 5/5

Google

What a gr8 facility, perfect for storage of my items. Sian was very polite, professional, and knowledgeable, nothing was to much trouble a true asset to Big yellow well done 👏 …

Simon · 14 September 2025

★★★★★ 5/5

Google

Check in’s quick, took less than 10 minutes with the paperwork. Marcus is really helpful and gave us a tour of the storage, answered all the questions.

Giridhar · 14 September 2025

★★★★★ 5/5

Google

Perfect, just turned up on spec, asked if there was a space I could rent. Everything was explained in clear terms. Was shown exactly the perfect space. Everything I needed from packing boxes to a padlock for unit were available on site. Signed up online process, simple and fast. Competitive pricing, half price for first 8 weeks rent. Spotless place. Friendly knowledgeable staff, big thanks to Neil who helped me set this up. Can’t fault all very safe and secure .

Meriel · 8 January 2025

★★★★★ 5/5

Google

Sian and James were amazing! Thankyou for your help! xx

Daisy · 14 February 2026

★★★★★ 5/5

Google

Great place, great staff. Neil was brilliant going through what was required and how to use the facility. Couldn't have been easier. Well priced too! Would recommend to anyone in future.

Jason · 14 July 2025

★★★★★ 5/5

Google

Excellent experience with big yellow. Poppy was excellent from start to finish. Cheerful and calm in a stressful time. Like the flexibility BY offers too.

Anna · 14 September 2025

★★★★★ 5/5

Google

Great experience with Big Yellow Storage, really smooth thanks to Sian. She was very helpful and made everything clear and stress-free.

Mehera · 14 October 2025

★★★★★ 5/5

Google

Everyone at the Big Yellow Self Storage has been friendly and helpful from the start. From my first communications with Poppy to our check in with Sian, it has been a smooth process. The unit is easy to access and has good security. We would highly recommend.

Ann · 9 April 2026

★★★★★ 5/5

Google

These days we are so used to the meaningless platitudes of 'have a nice day', 'pleasure to be of service' etc that one almost doesn't hear them. The staff at Big Yellow in Cardiff were unscripted and sincere in their manner but more than that they actually were helpful when I needed them to be particularly near the end of their shift - no hint of impatience or 'dozy old codger' jus simple courtesy and excellent customer service. Neil in particular was of great help so my main praise is for him. the others were exemplary too. Highly recommended.

Nik · 17 October 2024

★★★★★ 5/5

Google

I wasn't able to move my stuff out on my moving out day so I rang and the gentleman I spoke to was very friendly and said the next day was fine. All staff I have delt with have been friendly and approachable.

Alexandra · 12 April 2026

★★★★★ 5/5

Google

First of all, I must point out the fact that everyone working at this facility deserves a pay raise. There is no way BIG YELLOW is paying them what they deserve and are truly worth. The team in the Cardiff office doesn’t believe in or adhere to mediocrity. They believe in the “sky is the limit” philosophy. They far exceed the norm, and work tirelessly at an elite level. They are absolutely phenomenal. I’ve never seen a staff of people so capable and skilled in multitasking. They will do whatever it takes to assist patrons, and to ensure everyone experiences the supreme level of customer service synonymous with the BIG YELLOW brand. They are all very kind, personable, understanding, and highly professional. Sian and Denise are astoundingly astute, and sincerely work with every potential and current customer to help fulfill and maintain their optimal storage needs and expectations. This storage space is impeccably maintained and much more clean and pristine than any we have ever visited. With climate control throughout, security alarms and private settings, safe reinforced contained areas, above adequate lighting, after-hours services, and much more - it stands as the preeminent choice for all business, office, and storage needs. Truly worth every penny spent. Marcus is a most impressive manager and leader. Highly visible, available, and capable, he never stops working. He exudes invaluable insight, and is equally eager to assist, work with, and maintain all guest tenants. His managerial style has been carefully honed by necessity and perfected in brimstone and fire. On any given day, Marcus and his team face numerous challenges, chaos, and the unexpected. They work together to overcome each with a symbiotic style and inimitable sense of teamwork and confidence. Marcus leads the office by genuine example, personally tackling every and all issues which may arise. He is willing to step into any situation, and doesn’t shy away from difficult or complex problems. He exudes all the qualities and characteristics proven necessary to succeed. He is discernibly invested in Big Yellow’s future success, and stands as a living testament to their “next level” customer service philosophy and foundation. I clearly recall obtaining the initial storage when Nathan worked at the helm in that office. That was over a decade ago, and yet somehow this location still magically maintains this same core group of remarkable people. Nathan proved to be an exceptional manager, who set a fine example for all of those to follow in his wake. All of the associates named above were there from my initial storage tenancy as well, which truly reflects on the ability of Big Yellow to retain stability and longevity within their ranks. Such loyalty and actions speak volumes, much more than mere words can convey. There is a shared and refreshingly profound sense of conviction among this team. If they are not viewed by corporate as the premiere top office, they most definitely should be. The four people named above are much more than deserving of any rewards and recognition such a review warrants. I truly hope that each one receives their proper due, and that Big Yellow truly SEES and appreciates these superlative people working the trenches in the front lines of their business (day in - and day out!). There are many comparable storage competitors in this market from which to choose. Yet, by far, it is the PEOPLE working behind the desks and scenes which make any business entity special. This is one of those unique situations, and the company and patrons reap all of the benefits as a result. Thank you BIG YELLOW, for attracting such a memorable and capable longstanding team of individuals to operate together under the Cardiff Storage warehouse roof. Their collective proverbial “floor”, is all other storage facilities ceiling. They only see the possible, and that makes all the difference in the world.

L · 24 July 2024

★★★★★ 5/5

Google

James was incredibly helpful and made the entire process super simple and easy.

Shaan · 14 September 2025

★★★★★ 5/5

Google

Poppy was very helpful -thanks

Jac · 28 November 2025

★★★★★ 5/5

Google

Sian was very helpful and attentive

Jasmine · 14 November 2025