Extra Space Storage - 7277 - Billerica - Cook St

26 Cook Street , Billerica , MA 01821 (877) 449-1281

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We are experiencing high demand in this area.
Make sure you reserve a unit for free today to hold a storage space.

  • 5' x 5'

    5' x 5' Unit

    Climate Controlled, Interior, Upstairs (Access via Elevator)

    Discount Price

    $44.00

    Regular Price

    $49.00
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  • 4' x 10'

    4' x 10' Unit

    1st Floor, Climate Controlled, Interior

    Discount Price

    $69.00

    Regular Price

    $77.00
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  • 5' x 9'

    5' x 9' Unit

    Climate Controlled, Interior, Upstairs (Access via Elevator)

    Discount Price

    $66.00

    Regular Price

    $73.00
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  • 5' x 10'

    5' x 10' Unit

    Climate Controlled, Interior, Upstairs (Access via Elevator)

    Flash Sale

    Discount Price

    $59.00

    Regular Price

    $65.00
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  • 10' x 5'

    10' x 5' Unit

    Climate Controlled, Interior, Upstairs (Access via Elevator)

    Discount Price

    $71.00

    Regular Price

    $79.00
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  • 10' x 5'

    10' x 5' Unit

    1st Floor, Climate Controlled, Interior

    Discount Price

    $81.00

    Regular Price

    $90.00
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  • 10' x 5'

    10' x 5' Unit

    Drive Up Access, Heated

    Discount Price

    $94.00

    Regular Price

    $105.00
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  • 10' x 7'

    10' x 7' Unit

    Climate Controlled, Interior, Upstairs (Access via Elevator)

    Discount Price

    $90.00

    Regular Price

    $100.00
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  • 10' x 8'

    10' x 8' Unit

    Climate Controlled, Interior, Upstairs (Access via Elevator)

    Discount Price

    $94.00

    Regular Price

    $105.00
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  • 10' x 9'

    10' x 9' Unit

    Climate Controlled, Interior, Upstairs (Access via Elevator)

    Discount Price

    $110.00

    Regular Price

    $122.00
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  • 10' x 10'

    10' x 10' Unit

    Climate Controlled, Interior, Upstairs (Access via Elevator)

    Flash Sale

    Discount Price

    $98.00

    Regular Price

    $109.00
    continue
  • 10' x 10'

    10' x 10' Unit

    1st Floor, Climate Controlled, Interior

    Discount Price

    $141.00

    Regular Price

    $158.00
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  • 10' x 14'

    10' x 14' Unit

    1st Floor, Climate Controlled, Interior

    Discount Price

    $196.00

    Regular Price

    $219.00
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  • 10' x 15'

    10' x 15' Unit

    Climate Controlled, Interior, Upstairs (Access via Elevator)

    Flash Sale

    Discount Price

    $137.00

    Regular Price

    $153.00
    continue
  • 10' x 15'

    10' x 15' Unit

    1st Floor, Climate Controlled, Interior

    Discount Price

    $216.00

    Regular Price

    $240.00
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  • 17' x 10'

    17' x 10' Unit

    1st Floor, Climate Controlled, Interior

    Discount Price

    $254.00

    Regular Price

    $284.00
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  • 20' x 9'

    20' x 9' Unit

    1st Floor, Climate Controlled, Interior

    Discount Price

    $274.00

    Regular Price

    $304.00
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  • 10' x 20'

    10' x 20' Unit

    1st Floor, Climate Controlled, Interior

    Flash Sale

    Discount Price

    $257.00

    Regular Price

    $287.00
    continue
  • 20' x 15'

    20' x 15' Unit

    1st Floor, Climate Controlled, Interior

    Discount Price

    $455.00

    Regular Price

    $485.00
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How it works

Reserve 1

Reserve your
storage unit for free

Facility 2

Visit the facility to finalize the rental

Move 3

Move-in!

Operating Hours

Office

Sun closed
Mon 9:30 am - 6:00 pm
Tue 9:30 am - 6:00 pm
Wed 9:30 am - 6:00 pm
Thu 9:30 am - 6:00 pm
Fri 9:30 am - 6:00 pm
Sat 9:00 am - 5:30 pm

Unit Access

Sun 6:00 am - 10:00 pm
Mon 6:00 am - 10:00 pm
Tue 6:00 am - 10:00 pm
Wed 6:00 am - 10:00 pm
Thu 6:00 am - 10:00 pm
Fri 6:00 am - 10:00 pm
Sat 6:00 am - 10:00 pm

Features and Amenities

  • Video cameras on site
  • Vehicle requires insurance
  • Electronic gate access
  • Vehicle requires title
  • Moving supplies for sale
  • Manager lives on-site
  • English, Spanish speakers on staff
  • Rent due on same day each month per lease start
  • Auto-pay available
  • Vehicle must be running
  • Vehicle requires registration
  • Insurance required
  • Insurance available
  • Cash accepted
  • Checks accepted
  • Allow 18-wheeler dropoff
  • Has 18-wheeler alleys

Additional information

Customer Reviews

Leave a review

  • 4.5 of 5 stars

    Mary DeHart

    June 28th, 2025

    Moving storage

    I was welcomed by a representative who walked me to my unit and instructed me on lock, rules etc. She was wonderful and the facility itself is just beautiful. I feel lucky to have found this place! Thank you!

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