Welcome to Sentinel Self Storage

Providing exceptional storage units in DE, NJ, PA and MD.

Contactless rentals
Drive-up Units

Let Us Simplify Your Life

We provide convenient storage units, outstanding customer service, and much more. Check out our Specials page to discover additional savings.

Climate-controlled Storage Units
Climate-controlled storage units protect your valuables from extreme temperatures and humidity by maintaining a steady temperature of 60-78 degrees.
RV/Boat Parking and Storage
Indoor storage units for boats, motorcycles, and vehicles are available at all locations. Outdoor or covered RV, boat, and vehicle parking are also available at select locations.
24/7 Security
Sentinel Self Storage offers state-of-the-art video surveillance, security lighting, and heavy-duty perimeter fencing. Security amenities vary by location.
Residential Storage
Are you moving and need a temporary home for your furniture? Our clean and well-lit storage units are perfect for whatever transition you’re going through.
Gated Facilities
Our storage locations feature gated access for your protection and peace of mind.
Commercial Storage
Are you a local business looking for high-quality storage units? Store your records, paperwork, equipment, or seasonal inventory with us! Our drive-up, exterior storage units make accessing your things very easy.

3 Easy Steps to Rent Your Storage Unit

Rent a clean and convenient storage unit online in just 90 seconds

Choose Your Location

We offer a variety of easily accessible storage facilities in DE, NJ, PA, and MD.

Select a Storage Unit

Use our size guide feature to discover the perfect storage unit for your budget.

Rapid Rent Online

Complete your easy online rental and move in at your convenience. That’s it!

At Sentinel Self Storage, We Treat Our Customers Like Family

As a family-owned storage business with a 25-year history of providing household and business storage units, we want you to feel like you’re part of our family when you rent a storage unit with us. 

Our mission is to provide exceptional customer service, clean and secure storage units, and convenient locations. Our facilities offer climate-controlled storage units, RV/boat parking and storage, and traditional drive-up storage units. 

Owned by the same family since 1953, Sentinel Self Storage belongs to the Eastern States Group network of businesses that specialize in the real estate and construction industry.

View locations

Discover the Perfect Storage Unit for Your Needs

We offer a variety of storage unit types and sizes so you can be sure to find exactly what you’re looking for.

  • Climate-controlled storage units
  • Covered and uncovered RV/boat parking
  • Drive-up storage units
  • Business storage

Featured Units


Easy steps to rent your storage unit


Convenient self storage locations in DE, NJ, PA, and MD


Years in the self storage business and counting


Temperature-controlled buildings to protect your things

Our Locations