Extra Space Storage - 4230 - Lake St Louis - Technology Dr












Choosing the right storage unit size can feel overwhelming, but our storage unit size calculator makes it easy. To find the right storage unit for you, simply select the types and amounts of items you want to store and our calculator will quickly suggest the best unit size for your needs.
Browse a range of commonly stored items like furniture, mattresses, boxes, and appliances. From kitchen essentials to bedroom furniture, living room decor, office supplies, dining room pieces, garage gear, and more—our tool helps you make an informed choice.
Bob Davis
The manager, Tyler, was awesome to work with throughout the process. He went through all of the details and answered my questions. It only took 10 minutes from start to finish. I highly recommend Extra Space in Lake St. Louis!
Andrea Barley
I've had a large, climate controlled storage unit rented for over a year now and am extremely happy with the cleanliness, ease of access, and security provided by Extra Space Storage. Nicole is also very pleasant and helpful to talk to over the phone if you have questions or need any type of additional assistance.
Bailey Brush
Storage unit was nice and clean. They have several moving carts in each building too which was very helpful. Tyler was helpful and friendly when we were finished with our unit and we never had any issues overall.
S Simms
Response to Owner - The response is cold and only proves my point. Why should I reach out with issues your company has caused me. Anyone can see the difference between the response to 5-star reviews versus criticism. It’s clear this business only values praise, not its customer’s experience whether good or bad. You have my number on file, the right thing to do would be to contact me. The disregard and arrogance of the owner speaks volumes. 12/6/2025 - I strongly urge anyone reading this to take your business elsewhere. Spare yourself the stress, the hassle and the financial burden. Over time, your stored items will develop mold and as paying customers, you’re not even allowed to use the onsite dumpster. On top of that, after just a few months, your monthly fee will double with no explanation. My payment jumped from $48 to $96. The way they do customers is WRONG. My customer experience with Tyler has been very negative. He’s not helpful and shows no willingness to provide paying customers with a satisfactory experience.
Jacob Everitt
Tyler was very helpful in finding a unit that fit my needs and didn't aggressively upsell something outside of my budget. The facility is also very well kept.
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