New to Self-Storage?

If you haven’t tried self-storage before you might not know where to start. We’re here to help you, and you can take a look at this handy guide that might just answer a few of your questions.

First Step

First you need to work out how much storage you need. If you have sorted the items that you need to put into storage it might help to work out how big a vehicle you’ll need to transport them. Our size guide has been sorted into approximate vehicle sizes. Bear in mind these are approximate, so if you think it’s going to be tight you might want to go for the next size up. You won’t want to crush delicate items, so having enough space will avoid over stacking your unit.

If you haven’t been able to sort the items you’ll need to store, for example if it’s stock for your business and it’s not arrived yet, order the unit that you think is the best fit. If you need more storage or you’d like to go to the next size up we will always do the best we can to upgrade you. We’re a friendly family run business and we want our customers to be happy with their storage.

Second Step

The next step is to rent your storage. You can do this simply by giving us a call or booking online. Here you’ll be able to see all of the units that are available, and book straight away. Once you’ve booked you will know how much space you’ll have and when you can move in, so you can get ready to move your belongings.

Third Step

Simply move in to your unit! Get your Face to Face ID check booked in. Once this is complete you are good to move in, you will be provided with your access codes and given your unit number with directions and your padlock will be inside your unit. Once you’ve moved in you have access 24 hours a day seven days a week.

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Todd Impey profile picture
Todd Impey
15/04/2026
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Outstanding Service.Fair Rates and very friendly and accommodating.Well recommended.
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Matteo Veglia profile picture
Matteo Veglia
27/01/2026
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Millie and the team are superb to work with, very accommodating quick to reply to calls and emails.
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Tom Franklin profile picture
Tom Franklin
24/11/2025
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Mammoth Storage is an amazing family run business, they go above and beyond with Millie always being available and willing to always go the extra mile. Absolutely recommend this place!
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The Dig & Dump Co Ltd profile picture
The Dig & Dump Co Ltd
11/11/2025
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Excellent Service from Mammoth Self Storage! Really friendly team and very easy to deal with. The whole process was straight forward from start to finish, and their storage rates are very competitive. Having 24-hour access makes running my business a lot easier too. Would definitely recommend to anyone looking for reliable and affordable storage!
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rhiannon Jarvie
29/10/2025
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Excellent family run business in the heart of reading! Bespoke arrangements from the start, listened to my needs and supported throughout. Very grateful- will definitely use again.
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Christopher Rodrigues profile picture
Christopher Rodrigues
29/09/2025
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I used Mammoth in Spencers Wood as I was moving house close by. It was really convenient and easy to set up and get boxes in. The service was great and they were easy to contact. I’d definitely recommend Mammoth to anyone looking for storage.
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The Little Cottage
20/09/2025
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We needed some extra storage for our business and contacted Mammoth Self Storage. The service from start to finish was exemplary, the premises are clean, tidy and secure. Highly recommended.
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Kevin Potter profile picture
Kevin Potter
23/07/2025
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Mammoth Storage is great. I cannot rate them highly enough. The staff were friendly, accommodating, very helpful and supportive. Communication was quick, clear and instructive. The units are clean and easily accessible. If you are looking for any short or long term storage needs, Mammoth Storage would be ideal.
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Bill Kukstas profile picture
Bill Kukstas
14/07/2025
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Professionaly run, great service, reasonably priced. Would thoroughly recommend.
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Jordan Strong profile picture
Jordan Strong
03/07/2025
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I needed a storage solution for my business quickly, and I’m so glad I came across Mammoth! The team couldn’t do enough to ensure we had a solution that worked within the short time frame we had. They were incredibly helpful and responsive throughout. I 100% recommend Mammoth to anyone looking for competitively priced storage in the area.
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Trust Mammoth Self-Storage

With so many self-storage sites available what sets Mammoth ahead of all of the rest? First it’s our competitive pricing – you’ll be sure you’re getting a great deal. We have no sneaky hidden costs, so you know how much your storage is going to cost. The other thing that sets Mammoth ahead of the rest is our staff. They’re friendly and helpful and ensure you have the right storage and that everything is kept clean and secure. If you’re looking for storage for your belongings take a look at Mammoth Self Storage in Reading and Spencers Wood!

Self Storage in Berkshire
Self Storage in Berkshire

Frequently Asked Questions

Do I need to bring a lock?

We provide a padlock, but if you want to provide your own for extra security you can.

How do I pay?

Payment is always taken by credit or debit card we require 1 month deposit and 1 month upfront rental. Units are then billed monthly from moving in date. In accordance with the Self-Storage Association we do not except cash payments.

What can't I store?

  • Food or perishable goods unless securely packed so they are protected from and do not attract vermin
  • Any living creatures
  • Combustible or flammable substances such as gas, paint, petrol, oil, cleaning solvents or compressed gases
  • Vehicles as they also contain flammable substances
  • Firearms, explosives, weapons or ammunition
  • Chemicals, radioactive materials, biological agents, toxic waste, asbestos or other potentially hazardous substances
  • Any items that emits fumes or odours
  • Any illegal item or substances or goods illegally obtained such as illicit (counterfeit/smuggled) tobacco or alcohol and unlicensed or unsafe goods
  • Goods which are environmentally harmful or that are a risk to the property of any person
  • Currency, deeds and securities
  • Items which are irreplaceable by their unique nature or of significant value to the storer due to personal sentimental reasons