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Risk-free Reservation & Express Check-In

Lock in your low rate. There's no risk - easily cancel or change your reservation at any time.

modSTORAGE (ex-21CSS) - 3503 B ST - Philadelphia

3503 B StreetPhiladelphia, PA 19134(512) 361-1686

4.5 out of 5 - based on 20 reviewsmodSTORAGE (ex-21CSS) - 3503 B ST - Philadelphia

About modSTORAGE (ex-21CSS) - 3503 B ST - Philadelphia

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How it Works

  1. Select your unit image

    1. Select your unit

  2. Provide your details image

    2. Provide your details

    We just need your name and contact information to reserve your unit

  3. Express check-in image

    3. Express check-in

    Check into this facility online, eliminating the need to fill out rental paperwork at the facility

  4. Go straight to your unit image

    4. Go straight to your unit

    All you have to do on your move-in date is move items into your storage unit

Make a risk-free reservation to lock in your low rate.

No payment until move in. Easily cancel or change reservation online.

Available Units

Unit Sizes
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Amenities
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Not sure what you'll need? Need help determining what are right for you? We can help!
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5' x 5' Locker
  • Roll Up Door,
  • Climate Controlled,
  • Interior
1 left at$14.99per month
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5' x 5' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Interior
$24.99per month
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5' x 5' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Interior
$28.99per month
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5' x 5' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Premium Location,
  • Interior
$30.99per month
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5' x 7.5' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Interior
$31.99per month
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5' x 7.5' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Interior
$32.99per month
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4' x 10' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Interior
3 left at$33.99per month
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5' x 10' Unit
  • Roll Up Door,
  • Interior
$29.99per month
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5' x 10' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Interior
$34.99per month
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5' x 10' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Interior
$39.99per month
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5' x 10' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Premium Location,
  • Interior
$44.99per month
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5' x 10' Unit
  • Roll Up Door,
  • Drive Up Access
3 left at$59.99per month
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5' x 13' Unit
  • Roll Up Door,
  • Interior
1 left at$45.99per month
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7.5' x 10' Unit
  • Roll Up Door,
  • Interior
1 left at$47.99per month
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5' x 15' Unit
  • Roll Up Door,
  • Interior
$49.99per month
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7.5' x 10' Unit
  • Roll Up Door,
  • Interior
$49.99per month
unit icon
7.5' x 10' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Interior
1 left at$54.99per month
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7.5' x 10' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Interior
$59.99per month
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5' x 15' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Premium Location,
  • Interior
1 left at$64.99per month
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7.5' x 10' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Premium Location,
  • Interior
3 left at$64.99per month
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5' x 15' Unit
  • Roll Up Door,
  • Drive Up Access
1 left at$89.99per month
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7.5' x 10' Unit
  • Roll Up Door,
  • Drive Up Access
1 left at$99.99per month
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8' x 12' Unit
  • Roll Up Door,
  • Interior
1 left at$64.99per month
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10' x 10' Unit
  • Roll Up Door,
  • Interior
1 left at$69.99per month
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10' x 10' Unit
  • Roll Up Door,
  • Interior
$74.99per month
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10' x 10' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Interior
3 left at$84.99per month
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10' x 10' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Interior
$89.99per month
unit icon
10' x 10' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Premium Location,
  • Interior
$94.99per month
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10' x 10' Unit
  • Roll Up Door,
  • Drive Up Access
2 left at$119.99per month
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10' x 15' Unit
  • Roll Up Door,
  • Interior
3 left at$109.99per month
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10' x 15' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Interior
2 left at$119.99per month
unit icon
10' x 15' Unit
  • Roll Up Door,
  • Climate Controlled,
  • Premium Location,
  • Interior
1 left at$129.99per month
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10' x 15' Unit
  • Roll Up Door,
  • Drive Up Access
2 left at$289.99per month
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10' x 22' Unit
  • Roll Up Door,
  • Premium Location,
  • Interior
1 left at$229.99per month
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15' x 15' Unit
  • Roll Up Door,
  • Interior
1 left at$269.99per month
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10' x 23' Unit
  • Roll Up Door,
  • Drive Up Access
1 left at$389.99per month
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10' x 25' Unit
  • Roll Up Door,
  • Interior
1 left at$284.99per month
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10' x 27' Unit
  • Roll Up Door,
  • Drive Up Access
1 left at$429.99per month
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10' x 30' Unit
  • Roll Up Door,
  • Drive Up Access
$519.99per month
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15' x 42' Unit
  • Roll Up Door,
  • Drive Up Access
1 left at$599.99per month
Customer Reviews of this Facility (20)
Good people and outstanding service.

modSTORAGE (ex-21CSS) - 3503 B ST - Philadelphia

Price - 5/5
Paperwork - 5/5
Service - 4/5
Cleanliness - 5/5
Very helpful and friendly towards my kids. Paperwork was quick.

modSTORAGE (ex-21CSS) - 3503 B ST - Philadelphia

Price - 5/5
Paperwork - 4/5
Service - 5/5
Cleanliness - 4/5
Super friendly service, great prices, and state of the art facility
This is my first rental unit. The staff (especially Leslie) were helpful, knowledgeable, and friendly. Walked me through everything from the paperwork to how to use my circular key. There were some slight additional fees from the listed price, that weren't explained until after the contract was printed, but its minimal, and the prices are great, even with the mandatory insurance fee. Awesome facility!

modSTORAGE (ex-21CSS) - 3503 B ST - Philadelphia

Price - 4/5
Paperwork - 3/5
Service - 5/5
Cleanliness - 5/5
Want $250? Leave a review to enter our monthly drawing for a $250 Amazon gift card.
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