Specialty Storage Options

We provide commercial and residential storage and vehicle parking.

Contactless rentals
Drive-up units

Discover More Storage Types at Sentinel Self Storage

Sentinel Self Storage Middletown Office

Residential Storage

Do you need some extra room at home? Or are you moving and need a temporary home for your furniture? Store your household items with us. We provide climate-controlled storage units, traditional drive-up storage units, and clean facilities.
Sentinel Self Storage High Bridge Interior units

Commercial Storage

We offer convenient solutions for local businesses in need of extra space. Store your records, paperwork, equipment, or seasonal inventory with us! Our drive-up, exterior storage units make accessing your things very easy.

Vehicle Parking

Store your boats, RVs, and other vehicles with us! Sentinel Self Storage features indoor storage units for boats, motorcycles, and vehicles at all locations. In addition, outdoor and covered RV, boat, and vehicle parking are available at select locations.
Sentinel Self Storage North Dover Interior units

Climate-controlled Storage

Climate-controlled storage units insulate your belongings from extreme temperatures and humidity by maintaining a steady temperature of 60-78 degrees. Climate-controlled storage units are perfect for storing personal records, photographs, essential files, and paintings.

Extra Features and Amenities at Our Storage Locations

We provide everything our customers want at great prices

  • Discounts for long term and prepaid storage rentals
  • Moving and packing supplies
  • Heavy-duty fences
  • 24-hour access available

Three Generations of Experience in Storage and Real Estate

Sentinel Self Storage is a family-owned business with a twenty-five-year history of providing superior household and business storage units in multiple states on the East Coast. We are proud to be a part of the Eastern States Group network of businesses, a construction company around since 1953. 

Now managed by the third generation of the family that started the business, Eastern States Group has established itself as a leader in the home building, leasing, self storage, construction, and development industries in Delaware and the Mid-Atlantic. 

Sentinel Self Storage provides outdoor drive-up storage units, climate-controlled storage units, gated entry, moving and packing supplies, and much more. We offer various convenient self-storage facilities in Delaware, Maryland, New Jersey, and Pennsylvania.

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Got a Question for Our Professional Storage Staff?

Sentinel Self Storage: Dedicated to Our Customers

See all FAQs
What is self storage and how does it work?

Renting a storage unit is a great solution to clear up some much-needed space at home or to hold much needed business items. All of our storage facilities offer clean, secure storage solutions at affordable prices.

How much does self storage cost?

Our rates vary between unit sizes and type of storage. Please contact us if you have any additional questions about renting a unit.

Are there any items that I am NOT able to store?

Liquids, explosives, flammable liquids, toxic materials, and perishables. Please contact us if you have any questions regarding a specific item.

What is the best way to pack a unit?

Larger and more infrequently used items should go in the back of the unit. Remember to keep a walkway in the center of your unit to more easily access items. Always keep items labeled and a list of items stored, even a photo on the outside of each box will allow you to "see" what's inside.

For other helpful packing and organizing tips, check out our storage tips page.

Our Locations