Extra Space Storage

26 Cook St, Billerica MA, 01821

(888) 291-4801 Call Now!

Reserve a storage unit with Extra Space Storage

Book now to secure your storage unit.

See facility on map

Office Hours

Mon-Fri 09:30 AM - 06:00 PM
Sat 09:00 AM - 05:30 PM
Sun CLOSED

Access Hours

Mon-Sun 06:00 AM - 10:00 PM

Facility Amenities

5 x 5 Small Unit

Climate Controlled

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $30.00_/month $30.00_/month Web Only Price
~~$51.00~~_/month

~~$51.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
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Up to 50% OFF - Act Fast, Hold This Unit!
5 x 5 Small Unit

Climate Controlled

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $44.00_/month $44.00_/month Web Only Price
~~$75.00~~_/month

~~$75.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
5 x 9 Small Unit

Climate Controlled

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $45.00_/month $45.00_/month Web Only Price
~~$77.00~~_/month

~~$77.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
5 x 10 Small Unit

Climate Controlled

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $48.00_/month $48.00_/month Web Only Price
~~$83.00~~_/month

~~$83.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
10 x 5 Small Unit

Climate Controlled

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $58.00_/month $58.00_/month Web Only Price
~~$99.00~~_/month

~~$99.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
10 x 5 Small Unit

Climate Controlled

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $60.00_/month $60.00_/month Web Only Price
~~$104.00~~_/month

~~$104.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
10 x 7 Medium Unit

Climate Controlled

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $76.00_/month $76.00_/month Web Only Price
~~$131.00~~_/month

~~$131.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
10 x 8 Medium Unit

Climate Controlled

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $84.00_/month $84.00_/month Web Only Price
~~$143.00~~_/month

~~$143.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
10 x 8 Medium Unit

Climate Controlled

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $109.00_/month $109.00_/month Web Only Price
~~$184.00~~_/month

~~$184.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
10 x 10 Medium Unit

Climate Controlled

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $97.00_/month $97.00_/month Web Only Price
~~$167.00~~_/month

~~$167.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
10 x 10 Medium Unit

Climate Controlled

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $128.00_/month $128.00_/month Web Only Price
~~$216.00~~_/month

~~$216.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
10 x 14 Medium Unit

Climate Controlled

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $132.00_/month $132.00_/month Web Only Price
~~$222.00~~_/month

~~$222.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
10 x 15 Medium Unit

Climate Controlled

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $140.00_/month $140.00_/month Web Only Price
~~$233.00~~_/month

~~$233.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
10 x 15 Medium Unit

Climate Controlled

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $192.00_/month $192.00_/month Web Only Price
~~$288.00~~_/month

~~$288.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
10 x 20 Large Unit

Climate Controlled

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $203.00_/month $203.00_/month Web Only Price
~~$283.00~~_/month

~~$283.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
17 x 10 Large Unit

Climate Controlled

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $217.00_/month $217.00_/month Web Only Price
~~$315.00~~_/month

~~$315.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
20 x 9 Large Unit

Climate Controlled

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $229.00_/month $229.00_/month Web Only Price
~~$328.00~~_/month

~~$328.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
20 x 15 Large Unit

Climate Controlled

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 2 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 2 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $276.00_/month $276.00_/month Web Only Price
~~$377.00~~_/month

~~$377.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!
20 x 15 Large Unit

Climate Controlled

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 13 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $366.00_/month $366.00_/month Web Only Price
~~$473.00~~_/month

~~$473.00~~_/month

Up to 50% OFF - Act Fast, Hold This Unit!
Continue

Up to 50% OFF - Act Fast, Hold This Unit!

LOWEST RATES AND PRICES GUARANTEED

4 x 10 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
5 x 9 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
7 x 4 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
7 x 5 Unit
Climate Controlled

Indoor

Elevator Access

Upper Floor
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
7 x 10 Unit
Climate Controlled

Indoor

Elevator Access

Upper Floor
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
7 x 10 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
8 x 13 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
9 x 5 Unit
Drive Up Access

Roll Up Doors

Keypad Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
9 x 25 Unit
Drive Up Access

Roll Up Doors

Keypad Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
9 x 25 Unit
Drive Up Access

Roll Up Doors

Keypad Access

Enclosed
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 5 Unit
Drive Up Access

Roll Up Doors

Keypad Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 7 Unit
Drive Up Access

Roll Up Doors

Keypad Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 9 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 9 Unit
Climate Controlled

Indoor

Elevator Access

Upper Floor
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 10 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 13 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 14 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 16 Unit
Drive Up Access

Roll Up Doors

Keypad Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 16 Unit
Drive Up Access

Roll Up Doors

Keypad Access

Enclosed
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 16 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 20 Unit
Climate Controlled

Indoor

Elevator Access

Upper Floor
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 26 Unit
Drive Up Access

Roll Up Doors

Keypad Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 26 Unit
Drive Up Access

Roll Up Doors

Keypad Access

Enclosed
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 30 Unit
Drive Up Access

Roll Up Doors

Keypad Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 30 Unit
Drive Up Access

Roll Up Doors

Keypad Access

Enclosed
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 30 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
10 x 30 Unit
Climate Controlled

Indoor

Elevator Access

Upper Floor
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
14 x 9 Unit
Climate Controlled

Indoor

Elevator Access

Upper Floor
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
15 x 10 Unit
Climate Controlled

Indoor

Elevator Access

Upper Floor
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
20 x 10 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
20 x 10 Unit
Climate Controlled

Indoor

Elevator Access

Upper Floor
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
24 x 10 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE
30 x 10 Unit
Climate Controlled

Indoor

First Floor Access
(888) 291-4801 Call Now! Call now for availability

Reserve for FREE

LOWEST RATES AND PRICES GUARANTEED

Office Hours

Mon-Fri 09:30 AM - 06:00 PM
Sat 09:00 AM - 05:30 PM
Sun CLOSED

Access Hours

Mon-Sun 06:00 AM - 10:00 PM

Facility Amenities

Customers Review

John A.

September 07, 2023 - From Extra Space

Kristina and Shane at Cook Street have been extremely helpful navigating the storage unit rental and storage unit transfer process! The company’s overall billing system would benefit from greater clarity, transparency and communication, and less predatory policies.
Jennifer R.

August 25, 2023 - From Extra Space

Shane is excellent. Very helpful and friendly. Went above and beyond to make storage easy for me! Facility is clean and well kept.
ashley p.

August 19, 2023 - From Extra Space

Shane was SUCH a huge help! He was knowledgeable and didn’t hesitate to show us units that would be the best fit for us. The entire building was SO clean and beyond well maintained. I cannot recommend this facility and Shane enough
Blake G.

August 11, 2023 - From Extra Space

Very easy setting up the storage unit. Shane was extremely helpful showing me the unit and how to get in and made the overall experience wonderful.
AKKC A.

July 30, 2023 - From Extra Space

Great experience so far! Easy access, clean, indoor facility.
FINAL9 D.

July 30, 2023 - From Extra Space

Convenient and easy!
Ashwin S.

July 26, 2023 - From Extra Space

Was a breeze setting up a rental unit online, very competitive pricing too. Got an email with all details needed, drove to the storage and was easy accessing it. Clean, well maintained space overall and good option of storage unit sizes. The only suggestion (not sure if I missed it if already available) is maybe a map so that it’s a little easier to locate the storage on the first visit but otherwise has been good thus far.
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All Sizes

5 x 5 (Small)

5 x 10 (Small)

10 x 10 (Medium)

10 x 15 (Medium)

10 x 20 (Large)

10 x 30 (Large)

All Sizes

5 x 10 (Enclosed)

10 x 10 (Enclosed)

20’ Parking

30’ Parking

Small RV

Large RV

Extra Space Storage

26 Cook St, Billerica MA, 01821

Reserve a storage unit with Extra Space Storage

Book now to secure your storage unit.

All Sizes

5 x 5 (Small)

5 x 10 (Small)

10 x 10 (Medium)

10 x 15 (Medium)

10 x 20 (Large)

10 x 30 (Large)

All Sizes

5 x 10 (Enclosed)

10 x 10 (Enclosed)

20’ Parking

30’ Parking

Small RV

Large RV

Climate Controlled

Indoor

Elevator Access

Upper Floor

Climate Controlled

Indoor

First Floor Access

Climate Controlled

Indoor

Elevator Access

Upper Floor

Climate Controlled

Indoor

Elevator Access

Upper Floor

Climate Controlled

Indoor

First Floor Access

Climate Controlled

Indoor

Elevator Access

Upper Floor

Climate Controlled

Indoor

Elevator Access

Upper Floor

Climate Controlled

Indoor

Elevator Access

Upper Floor

Climate Controlled

Indoor

First Floor Access

Climate Controlled

Indoor

Elevator Access

Upper Floor

Climate Controlled

Indoor

First Floor Access

Climate Controlled

Indoor

Elevator Access

Upper Floor

Climate Controlled

Indoor

Elevator Access

Upper Floor