









Around 5′ × 10′
Similar to a closet. Ideal for sports equipment, seasonal items, and extra boxes.
10′ × 10′ to 10′ × 20′
Similar to a small room. Ideal for a studio apartment or office suite.
10′ × 25′ to 10′ × 40′
Similar to a one-car garage. Ideal for a multi-bedroom home or business inventory.
Outdoor & covered spaces
Ideal for cars, RVs, boats, and trailers.
Answers to the questions storage customers ask most.
Our Portland St office hours are Monday–Friday from 9:30 a.m. to 6:00 p.m. and Saturday from 9:00 a.m. to 4:00 p.m. We are closed on Sundays. You can access your storage unit 7 days a week from 6:00 a.m. to 10:00 p.m. using our secure gated entry. 24/7 access may also be available. Ask our site manager for details.
Yes. Storage Star requires storage insurance to help protect your belongings. You're welcome to provide your own coverage, or you can enroll in a convenient Storage Star Protection Plan during the rental process.
You may bring your own lock, or you can purchase a high-quality lock directly from our Portland St storage facility for added convenience.
Storage unit pricing varies based on unit size, availability, and features such as climate control, drive-up access, or vehicle storage. Scroll up to view our current availability and web-only rates, or call our Berwick storage team for personalized assistance.
Renting a storage unit is quick and easy. You can: browse available units and rent online instantly, reserve a unit online and complete paperwork later, or visit the Portland St facility to speak with our on-site team.
Yes, our Portland St location offers climate-controlled storage units, which are ideal for protecting items from Maine's harsh winters, summer humidity, and year-round temperature fluctuations.
We offer a wide range of storage unit sizes at our Portland St facility, typically ranging from 25 to 300+ square feet.
Our Portland St facility is backed by advanced security features including 24-hour video surveillance and electronic gate access, so your belongings are protected around the clock.
The outdoor parking space you'll need depends on your RV class size. Our outdoor parking spaces at the Portland St facility typically range from 20’ to 40’.
To rent a storage unit, you'll need: A valid government-issued photo ID A payment method for your first month's rent and any applicable fees A signed rental agreement (online or in person) A lock for your unit Proof of insurance or enrollment in a Storage Star Protection Plan
Yes! Storage Star on Portland St is located directly on ME-4, making it easily accessible from South Berwick, North Berwick, and surrounding York County communities. The facility can also be reached from the east via Hooper Sands Rd and Knights Pond Rd, or from the west via Wentworth Rd and Old Rte 4.
Storage Star on Portland St is located on ME-4 near Coffin Ln, offering straightforward access for residents and businesses throughout Berwick and the surrounding York County communities.

Berwick, ME
Storage Star on Portland St is located on ME-4 near Coffin Ln, offering straightforward access for residents and businesses throughout Berwick and the surrounding York County communities.
Storage serving Berwick, ME
If you need storage beyond Berwick, we have convenient locations throughout the surrounding areas — each with the same great features and service.
Looking for self-storage near you? Storage Star on Portland St in Berwick offers clean, well-lit storage units with climate control, drive-up access, indoor and outdoor vehicle storage, month-to-month rentals, and secure gated entry. Get low-cost, high-quality self-storage at the Berwick Storage Star!
You'll find our Berwick storage facility at 560 Portland St, conveniently located on Portland St near Coffin Ln, within 1 mile of South Berwick and within 5 miles of North Berwick. Locals will recognize us near Lowery's Lawn & Patio Furniture.
Call our team today or scroll up to rent your storage unit online in minutes.
Storage Star on Portland St offers sizes ranging from 5'x10' up to 10'x30', available as standard drive-up units or with climate control, plus outdoor parking spaces from 10'x20' to 10'x40' for vehicles.
5'x10' — about the size of a walk-in closet. Fits a small bedroom's worth of belongings: a twin or full mattress set, a dresser, and several boxes. Available as a standard drive-up unit or with climate control for temperature-sensitive items.
10'x10' — about half a one-car garage. Holds a 1-bedroom apartment's worth of belongings: a queen mattress set, sofa, dresser, and 15–20 boxes. Available in both standard and climate-controlled versions.
10'x15' — about the size of a small room. Fits a 2-bedroom apartment's worth of furniture and boxes — bedroom sets, a couch, and appliances.
10'x20' — comparable to a one-car garage. Holds a 3-bedroom home's furniture and boxes, or a vehicle if you need the extra space.
10'x25' — built for larger moves. Fits a 4-bedroom household's belongings, or a mix of furniture and business inventory. Available with climate control.
10'x30' — our largest drive-up size, suited to a full multi-bedroom home move or substantial business inventory.
Outdoor parking (10'x20' to 10'x40') — sized for cars, RVs, boats, and trailers, protected by gated access and 24/7 surveillance.
Maine winters and humid summers can be hard on sensitive belongings — pair any of these sizes with our temperature-controlled storage options if you're storing electronics, wooden furniture, or important documents. See the Climate-Controlled Storage section above for the full list of what to protect.
Still not sure which size fits your stuff? Try our interactive storage size guide to map out your furniture and boxes before you book.
Storage Star's Portland St facility is built with security in mind. The property features 24-hour video surveillance and electronic gated access, so only tenants with an assigned code can enter. Extended access hours — 6:00 a.m. to 10:00 p.m., seven days a week, with gate access on Sundays — mean you can get to your unit when you need to without sacrificing peace of mind.
For added protection, ask about our Protection Plan for extra coverage on your stored belongings.
From South Berwick (via Route 4/Portland St):
Head north on Portland St toward Berwick. The facility will be on your right.
From Somersworth, NH (via NH-108/Route 4):
Cross into Berwick on Route 4/Portland St. The facility is on the left.
From Rollinsford, NH (via Route 4):
Head east on Route 4 into Berwick, continuing on Portland St. The facility will be on your right.
From I-95 (Maine Turnpike), Exit 2 (Berwick):
Head toward Route 4/Portland St. The facility is a short distance away.
When you need storage in Berwick, Storage Star is the answer. Visit our facility on Portland St for storage conveniently located near South Berwick, North Berwick, and throughout the greater York County area. Peruse our available storage unit sizes and prices, and utilize our storage unit size guide to help you select the best unit. Rent storage online today with our easy online rental process! Need more assistance? Feel free to contact our team, and we'll be happy to help.
First Month Promotions valid at select locations, subject to unit availability. First month promotions only apply to the monthly rent charge for the first month; regular monthly charges will apply after. Administrative fees, taxes, insurance, or other charges may apply. Cannot be combined with other discounts or on transfers and is subject to change. See store for complete details.
Multi-month promotions valid at select locations, subject to unit availability. Two-month rate promotions only apply to the monthly rent charge for the first two months; three-month rate promotions only apply to the monthly rent charge for the first three months; regular monthly charges will apply after. Administrative fees, taxes, insurance, or other charges may apply. Cannot be combined with other discounts or on transfers and is subject to change. See store for complete details.
Unit sizes are approximate and may vary by location. Square footage is based on exterior measurements. Images and descriptions are for illustrative purposes only. Unit size availability may be limited and is subject to change without notice.