Mill Creek Self Storage
Streamline your space with self-storage in Mill Creek, offering flexible units for every lifestyle.
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At one point in life, everyone finds themselves in need of additional space – and for most people, that need leads straight to self storage rental. Whether that moment comes when you are moving, remodeling, or decluttering – the reasons will vary greatly. While life might be unpredictable, there’s one thing you can rely upon with utmost confidence – PortaBox Storage. The Mill Creek self storage portable storage solutions we offer are designed to reflect and accommodate the various needs of our customers. Give us a call, order the number of PortaBoxes you need, and enjoy the simplicity and flexibility our units have to offer.

Top-rated Mill Creek self storage solutions available 6 days of the week
PortaBox storage is much more than a mere storage provider. We are also a company that abides by the old-fashioned values and thinks of them as the core of our business model. It is for that reason that we work hard on providing you with the best self storage solutions Mill Creek has to offer. During our business hours, our entire team is at your complete disposal for any questions, inquiries, and assistance you may need. Feel free to contact us:
- Monday to Friday from 8 am to 6 pm
- On Saturdays from 9 am to 1 pm
Our staff rests on Sundays, gathering the energy and motivation to keep doing what we do best during the workweek – providing you with cost-effective portable storage services in Mill Creek, WA.
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PortaBox Storage firmly stands at the top of the portable storage industry
With storage solutions becoming a necessity for every American, the portable storage industry has witnessed exponential growth in the past. By constantly creating better and more resilient containers, PortaBox Storage has managed to stay at the top of the industry. As a company that strives to provide all of our widely dispersed customers with top-rated solutions, we cover a lot of locations in Washington and Idaho, with the main ones including:
- Newcastle PortaBoxes
- Lynwood self storage facility
- Seattle facilities and warehouses
As a top-rated self storage provider, we are always aware of the high expectations all of our customers have when contacting us. That gives us additional motivation and desire to not only meet your expectations but exceed them. Dial 1-888-269-8646 and have a team that will consider the safety of your items as its main priority.
We show an unmatched level of concern for all of your items
At PortaBox Storage, we always knew that we wanted to build our business model around the guarantee of safety. Our primary concern is to ensure your items remain in perfect condition while in our portable Mill Creek storage. When hiring our staff, it goes without saying that we looked for the appropriate qualifications and training. But, our company also placed special importance on the will, dedication, and motivation of our employees and their desire to treat your items as our own.

From the truck drivers that come to pick up your belongings to our warehouse personnel, you can rest assured that every individual will have a clear goal – keeping your items safe and sound. By using weather-resistant vinyl covers and by introducing double reinforced doors, we will further ensure that there aren’t any external threats that can impair the desired level of safety.
The process of getting our portable Mill Creek storage solutions
One of the main disadvantages of storage solutions is their lack of simplicity. That is not a hurdle you are going to face with PortaBox Storage. To get our PortaBoxes, all you have to do is dial our number and place your order. Our team will arrive at your property at the agreed time and will proceed to place our portable units at the location that’s most convenient for you. We will leave your property and let you pack on your own schedule and convenience.
Because our PortaBoxes are grounded, you won’t need any special equipment for loading your items. The only thing you will require includes regular packing materials. Once again, our company will have your best interest in mind! We offer a special service that allows you to order all the packing materials you will need for getting your items ready for storage. With special rental plans and affordable prices, our packing materials will ensure all of your packing needs are met.
Once all of your items are safely packed, give us a call to schedule the pick-up. With our Mill Creek self storage, you have two options. You can keep our PortaBoxes on your driveway or yard or you can let us fit them in our safe warehouses. Either way, you will have complete access to your belongings at all times. A 24-hour notice via phone call is sufficient once you feel the need to retrieve some of your items or simply ensure they are staying safe.
PortaBox Storage
Door-to-door delivery & pickup
You load the PortaBox(es)
We pick-up & store in our secure warehouse
Four convenient warehouse locations
We deliver your PortaBox(es) to your location
VS
Other Regular Storage
You must rent a large truck!
You must load heavy items into the truck
You must drive the big truck to storage facility
You must unload & return the truck
You must repeat the process when retrieving items
Perfect for your moving and shipping needs
Thanks to the resilient composition of our PortaBoxes, our units are perfect for both moving and shipping endeavors. We know that moving is a huge hassle, so we try to ease this process with our moving and shipping services. Our specialists will do both the pick-up and delivery in a time that works best for you! With us, you get to completely avoid moving truck rental, as well as a plethora of problems that accompany it.
Whether you are moving to, from, or in the city of Mill Creek, PortaBox Storage is here to make this process easy and stress-free. Our company can store and move both residential and commercial belongings, making us the perfect fit for every relocation type. And we are only a phone call away!
Enjoy all the conveniences of our portable Mill Creek storage and give us a call
Finding the perfect unit for your residential or commercial needs seems like a difficult task. By contacting PortaBox Storage, you get to forget about all the difficulties that are attached to the process. We have ensured our Mill Creek self storage satisfies our high standards by providing the complete safety of all of your items at competitive rates. Let us answer your most pressing concerns – all you have to do is dial our number.
PortaBox FAQs
How do I order a storage container?
You can order online or call toll-free: 888-269-8646. Your containers will arrive within 24 hours at your yard, driveway, or curbside.
Is there a minimum rental period?
Yes, there is a one-month minimum storage fee per container. Even if you store for less than a month, the full first month is charged. Special pricing is available for quarterly, semi-annual, and annual subscriptions.
Can I add extra storage later?
Yes! Orders can be adjusted at any time. Call 1-888-269-8646 or contact your nearest PortaBox warehouse.
Do you charge for delivery?
Yes, the charges are based on ZIP codes or you may choose to bring your belongings to one of our conveniently located facilities. Delivery and Re-delivery charges are based on the distance from your location to one of our warehouse locations and vice versa.
What payment options are available?
You can pay by check, cash, Visa, or MasterCard. Automatic monthly billing is also available. Payment methods include:
- Auto-Pay: Monthly deductions from your bank account or credit card. Call 1-888-269-8646 to set up.
- Phone Payments: Pay over the phone by credit card (contact your billing location for accepted card types).
- Mail: Send checks to your billing location (address provided on your invoice)
How long can I keep the container?
You can keep the container for seven days at no extra charge. For example, if we deliver the container on a Monday, you would have it for the whole week. If you want the container longer, it is $10 per day per container up to a MAXIMUM of 10 days.
Any tips for a smooth delivery?
Have containers delivered the day before you plan to unload.
- Decide on placement before the driver arrives (firm, level ground is best).
- If in an apartment complex or managed community, inform management in advance.
- If placing on the street, reserve a parking spot beforehand.
How secure are PortaBox storage facilities?
- 24-hour monitoring with security and fire protection systems.
- No public access to the warehouse—only authorized individuals with a unique password and photo ID.
- Private access areas for secure and convenient access to containers.
How big are the containers?
- Exterior dimensions: 5′ wide x 8′ deep x 7′ 6″ tall
- Interior dimensions: 4′ 6″ wide X 7′ 6″ deep x 7′ tall
How much can they hold?
Each container holds approximately one normal room of furniture or up to 2,000 pounds (240 cubic feet).
How do I determine how many PortaBoxes I need?
A PortaBox specialist can help estimate your needs. Refer to our Sizing Guide for assistance.
How should I pack and load my storage container?
- Use quality packing supplies to prevent damage.
- Wrap furniture in pads or bubble wrap; avoid taping directly on wood or painted surfaces.
- Remove furniture legs when possible and secure screws in labeled bags.
- Coat fine wood furnishings with wax for extra protection.
- Keep dressers loaded with contents and secure drawers.
- Use original boxes for electronics and label cables for easy reinstallation.
- Tape electrical cords to appliances to prevent damage.
For detailed tips, download our Packing Tips Guide [PDF] or call your local PortaBox Storage center for loading assistance.
What if I don’t have a lock?
You can order locks when we confirm your order or purchase them from the driver. View our Packing Supplies page for more information.
Will you load &/or unload my box for me?
Yes, PortaBox has a business relationship with local moving companies that can provide the labor to load or unload your container(s). We suggest that you have the container(s) delivered the day before you have the movers come out to do the work for you. Contact the closest office to set up the labor.
Do I need to be present for delivery?
We prefer that the account holder is present at the time of delivery to sign the paperwork and direct the driver where to place the containers. If you absolutely cannot be there we can make arrangements to get the paperwork signed prior to delivery and have you make a diagram where to place the containers.
What do I need to do to have my container re-delivered to my home? (or other location)
Tell us the delivery ZIP code, the date you’d like to schedule re-delivery. There will be a charge for your re-delivery at the then prevailing rates to the normal local delivery area.
Can you move my box to another state or overseas?
Yes, contact us and ask for our shipping department for more information. If you think you will be shipping your container, please let your Customer Care Representative know when they’re confirming your order to ensure your goods are placed in the appropriate shipping container.
How can I access my storage container?
Contact us at least 24 hours in advance (excluding Sundays and holidays) to schedule access. Your container will be moved to a designated access area for you. Please bring a photo ID and ensure your account is up to date.
May I have my container(s) moved to a warehouse closer to my home?
Yes, there is a relocation fee for moving containers from one warehouse to another.
Can I put the container in the garage or carport?
For insurance reasons, we’re not able to place containers in your garage or carport. The containers must be placed on a firm, fairly level surface. They shouldn’t be placed in the grass or on a steep driveway.
How many containers can I have delivered at once?
We can deliver up to 5 containers at a time, but we can deliver as many containers as you like. There is an additional delivery charge for each set of 5 or fewer containers.
How much does PortaBox storage cost?
Depending upon your zip code, Portaboxes overall are less expensive than mini-storage. For the most economical solution, we have special offers on quarterly, semi-annual, and annual subscriptions.
When will I receive my monthly statement?
Statements are mailed on the 1st of each month and due by the end of the month.
Can I set up automatic payments?
Yes, most customers opt for automatic billing. Inform our Customer Care Representative when confirming your order.
When will my credit card be charged?
Monthly charges are processed at the beginning of each month.
How do I close my account?
- Provide 10 days’ notice for redelivery and account closure.
- Ensure your account is current before scheduling final delivery.
- Contact 1-888-269-8646 for any billing concerns.
Do you offer discounts for long-term storage?
Yes! We offer discounted pricing for extended stays:
- Six-Month Special – Prepay two months, then switch to automatic payments.
- Annual Special – Prepay for the year or first three months, then continue with automatic payments.
Note: Special pricing may vary by location. Contact your local warehouse for details.
Do you have insurance that I can buy?
We do not sell insurance. We do have VALUATION which is a dollar value protection that may be purchased as additional coverage. Be sure to include this in the Pricing & Ordering section by clicking in the circle for VALUATION.
Who do I contact about billing questions?
Please contact our accounts receivable department by calling 1-888-269-8646 for any questions.

