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Selection Home Movers
- Polite
- The Future
- Thumbs up
“Very clean, friendly and hard working, Trevor, Nelson and Chan went the extra mile They worked fast and efficiently and the final bill was very reasonable.”
Best Self-Storage Units in Cornwall, ON
24 companies listed · 7 in Cornwall · 6 open 24/7 · 17 open weekends · 20 rated 4.5+
Data verified October 17, 2026
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Saint John's Transfer (1978) Ltd.
- Price
“All in all, from the first visit from the rep for an estimate, to the receptionist scheduling booking, and the wonderful moving team I would definitely recommend this company.”
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Safe Storage Cornwall
- Questions
- Trailer
- Communication
“I would like to thank safe storage for the help and for the rental of the storage I would give it a 5 star for the help and the understanding when we moved from Alberta to here Thank You”
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Seaway Valley Mini Storage
“Great place”
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Wallrich Mini Storage
“Best prices in Cornwall, with a clean and modern facility.”
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Astro Storage & Warehousing
“Very good service”
Listed for people needing storage in and around Cornwall, ON, these 24 companies rent storage space. Whether a site is heated, whether you can drive to the door, and how late the gate opens are as each one states them, so confirm the details that matter to you first.
Area overview: Cornwall, ON
7 of the 24 companies we list are based in Cornwall; the other 17 serve Cornwall from towns including Casselman (40 km), Long Sault (8 km) and Limoges (51 km). The companies on this page are rated from 4.2 to 5.0 across 513 reviews; 2 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (93%), responsiveness (74%) and quality (63%). The topics that come up most in reviews of the companies on this page are "price" and "communication". 6 are open around the clock; 17 are open on Saturdays and 13 on Sundays. 1 shows a licence on its website. 7 have ten or more years of experience, the longest 19 years. 6 offer emergency call-outs; 1 gives free estimates and 4 are family- or locally-owned. We have a website on file for 22 of the companies on this page; 13 publish a contact page and 15 list a public email. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Which listed storage sites allow access at any hour?
Round-the-clock access is stated by 6 of the 24 facilities here. That is gate access on your own code, not a staffed building at 3 a.m. In winter, ask who clears the drive lanes overnight, because access on paper and a passable lot are two different things.
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Cornwall Storage Box
“Satisfy”
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Williamstown Mini Storage
- Security
- Winter
- Rooms
“I couldn't ask for better service from the office staff, also when looking around for prices they were so much cheaper than other local Storage areas.”
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Halfway House Freight Forwarding
- Parcel
- Family
“Very nice people”
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Sd&g Express Storage
- Unit
“Absolutely amazing service, owner accommodated me beyond reasonable hours and I'm quite impressed with the service, thank you sd&g express storage...”
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Long Sault Mini Storage
- Rental
- Storage Unit
- Price
“Went to the unit and it was beyond my expectations of what I thought I was getting myself into (never had to use a storage unit before) Not even a single spider in my unit!!”
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Get Space
- Prices
“Excellent location, very safe , cheapest price”
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McConnell Mini Storage
“I would recommend this storage business to not only Family and Friends but also to anyone who is wanting affordable storage options and above normal Customer Service with the owner Tim who is not only very flexible but has come through for me more th...”
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Universal Storage Solutions
- Units
“Called with a few questions and the phone was answered right away, very helpful.”
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Storage 66
“Big safe and clean.”
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SaintIsidore Storage Ltd.
“Fast load and unload”
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Desjardins Storage (Entreposage Desjardins)
“Units are new, sparkling clean and very well maintained.”
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St-Albert Storage
“Secure and clean storage!”
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Casselman Storage
“Awesome service the owner is very professional and accommodating”
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Mini-Entrepôt M.G.
“A very secure place and good service.”
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Twin Peeks Storage
- Security
- RV
- Price
“Great service”
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Meraki General Contracting
- Budget
- Communication
- Future
“Right from the beginning and throughout, Jason and Ken were professional, responsive and offered great suggestions and ideas to truly make our vision come to life.”
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Limoges Self Storage
- Clean
- Price
- Boat
“Great guys to work with.”
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Mini Entrepôts Salaberry
“Nice place for pick up”
Why these companies made our list
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