Sound Storage of Mill Creek - 4012 148th Street SE, Mill Creek, WA 98012

4.5/5 - 228 Reviews
Location:
4012 148th Street SE, Mill Creek, WA 98012
Office hours:
  • Mon-Sat: 9:30 a.m. - 6 p.m.
  • Sun: 9:30 a.m. - 5 p.m.

Sound Storage of Mill Creek - 4012 148th Street SE, Mill Creek, WA 98012

  • Climate-Controlled

    Protect belongings from temperature changes and humidity

  • Indoor

    Units are located indoors for added protection and convenience

  • Drive-Up Access

    Drive directly up to your unit for easy loading and unloading

    Not sure which size you need? Check our size guide to find the perfect fit.
    10x8 Self Storage 80 Sq. Ft.
    Elevator Access
    $109/mo
    10x5 Self Storage 50 Sq. Ft.
    First Floor Access
    $179/mo
    10x5 Self Storage 50 Sq. Ft.
    Elevator Access
    $79/mo
    7.5x10 Self Storage 75 Sq. Ft.
    Elevator Access
    $94/mo
    5x15 Self Storage 75 Sq. Ft.
    Elevator Access
    $104/mo
    5x10 Self Storage 50 Sq. Ft.
    Elevator Access
    $74/mo
    5x8 Self Storage 40 Sq. Ft.
    Elevator Access
    $64/mo
    5x5 Self Storage 25 Sq. Ft.
    Elevator Access
    $44/mo
    12x10 Self Storage 120 Sq. Ft.
    $269/mo
    10x18 Self Storage 180 Sq. Ft.
    Elevator Access
    $229/mo
    10x15 Self Storage 150 Sq. Ft.
    Elevator Access
    $336/mo
    10x15 Self Storage 150 Sq. Ft.
    First Floor Access
    $299 - $462/mo
    10x13 Self Storage 130 Sq. Ft.
    Elevator Access
    $157/mo
    10x10 Self Storage 100 Sq. Ft.
    First Floor Access
    $249 - $395/mo
    10x10 Self Storage 100 Sq. Ft.
    Elevator Access
    $169/mo
    20x15 Self Storage 300 Sq. Ft.
    Double Elevator
    $299/mo
    15x30 RV 450 Sq. Ft.
    Parking RV Storage
    $295/mo
    12x30 Self Storage 360 Sq. Ft.
    $636 - $734/mo
    12x30 RV 360 Sq. Ft.
    Parking RV Storage
    $342/mo
    11x27 RV 297 Sq. Ft.
    Parking RV Storage
    $268/mo
    10x30 Self Storage 300 Sq. Ft.
    $409 - $549/mo
    10x30 RV 300 Sq. Ft.
    Parking RV Storage
    $259/mo
    10x25 Self Storage 250 Sq. Ft.
    $319 - $389/mo
    10x20 Self Storage 200 Sq. Ft.
    $309 - $349/mo
    10x20 Self Storage 200 Sq. Ft.
    Elevator Access
    $284/mo
    No units are currently available.

    Amenities & features

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    • Retail Available
    • Onsite Manager
    • Truck Rentals
    • Contactless Renting
    • Security Camera
    • Gate
    • Parking
    • Credit Cards Accepted
    • Elevators
    • First Floor Access
    • Multi-Level Storage
    • Online Payment
    • RV Storage

    Customer reviews

    4.5/5
    Average rating
    228
    Number of reviews

    Read some helpful reviews of Sound Storage of Mill Creek, shared by real renters with genuine experiences and honest opinions.

    Easiest move into storage ever! Extremely nice and helpful staff in the office too! I chose this location because it was one of the few places I could get a 10x5 instead of 5x10 unit. I'm not in the best shape physically, so trying to go 10 feet deep into a locker is not feasible. I can already tell the 10 x 5 is going to be perfect for my needs. When you rent an apartment, they just don't have enough storage space. So I need a locker that's like an extension of my home. I am already impressed with the cleanliness of the facility and helpful office staff AND the hours. Some places are closed on weekends or Sunday, and that's about the only day I can go. I can already tell I won't dread visiting my locker like I did other places, but look forward to accessing it whenever needed. ... Read more
    Kathleen D. - 30 September 2025
    I worked with Karen and she was so lovely. She helped us get a great unit and was so helpful. I saw first hand how hard she works to keep everything running smoothly and safe. It made me feel better knowing my items were left in good hands. ... Read more
    Desiree L. - 7 September 2025
    BEWARE! THEY'LL INCREASE FEES SEVERAL TIMES IN A YEAR and IMPOSE INSURANCE WITHOUT NOTICE or consent. BILL WENT FROM $35 PROMO TO $108. 300% INCREASE! I would do 0 stars if I could. Talked to Karen today to whom I questioned how they had my same unit listed for $24 right now, yet I'm paying $108. She said that rate was just to get people in the door (trapped basically) and that everyone would eventually end at the same ridiculous rate I have. Needless to say, she was not helpful, did not offer any alternatives (per what's mentioned in the business reply below) and made me feel like I'm being ripped off l, like it or not. Only alternative she offered me was to vacate. DON'T TRUST THIS BUSINESS. You can see in all of my reviews I'm generally a happy customer but this abusive practice makes me angry and won't be silent. (Previous review) I have a 5x5 unit that I got at 35 dollars for the first 2 months, then I started paying 70 and a a couple of months later I saw it was $85. I called and they told me I was obligated to pay insurance, hence the 85 instead of 70. I told them I don't need to insure any of the items I have in there and they said it was mandatory SO they added their insurance. NOW IT'S $108! Again No warning, etc. My payments are auto so it's done. And the crazy thing is that they still have the same size unit listed for $35 a month and 69 after (don't fall for that if you are reading this). I hardly ever give this sort of review, this one is well deserved. This is an abusive and very shady practice that I won't tolerate. Getting my things out ASAP. Very sad I put my trust in this business. ... Read more
    Daniela B. - 1 April 2025
    Sarah at the front desk was a huge help, we found just what we were looking for and at an affordable price. Super friendly, fast and professional. Thank you again for making everything quick and simple. ... Read more
    shakes t. - 27 March 2025
    Jennifer H. - 26 March 2025
    Sarah at Sound Storage in Mill Creek was exceptional in setting up my rental contact, explaining the facility operation and showing me to my unit. Everything is clean, warm, well lit and security is top notch. I highly recommend! ... Read more
    Pat E. - 8 February 2025
    The best storage in the area. Clean. Aircondition. Access time is convenient. Office hours is the best. Very friendly staff. The only drawback is... the rate! Introuctory price is reasonable until they hike it to very unreasonable. ... Read more
    Rek A. - 29 April 2024

    About this facility

    Located at 4012 148th Street SE in Mill Creek, WA, this Sound Storage facility offers a variety of unit sizes, including small, medium, and large options, to suit different storage needs. With climate-controlled units, it’s an excellent choice for protecting sensitive items from the damp and cool Pacific Northwest weather. The facility also features indoor access and drive-up access, providing flexibility for those looking to store items conveniently.

    This Sound Storage property stands out with its array of amenities, such as elevators and multi-level storage, making it easier to access units regardless of location within the facility. For added peace of mind, a security camera system, onsite manager, and gated access ensure the property is secure. Vehicle owners will appreciate the availability of parking and RV storage, ideal for storing cars, boats, or recreational vehicles during Washington’s rainy seasons.

    Additional conveniences include contactless renting, online payment, and the option to purchase moving supplies or rent a truck directly at the facility. With a combination of modern features and thoughtful add-ons, this facility is a dependable choice for both residential and commercial storage in Mill Creek.

    Price comparison

    See how this facility's unit prices compare to others in Snohomish, broken down by size.

    Small $93/mo
    Location minimum Location maximum
    $39/mo $232/mo
    Medium $244/mo
    Location minimum Location maximum
    $125/mo $356/mo
    Large $342/mo
    Location minimum Location maximum
    $143/mo $730/mo

    Location & walkability

    This storage facility is in an area with moderate walkability and some public transit options. A personal vehicle may be needed for certain trips.

    39

    out of 100

    Walk Score

    Car-Dependent

    Most errands require a car

    40

    out of 100

    Bike Score

    Somewhat Bikeable

    Minimal bike infrastructure

    Walk Score®: 39, Bike Score®: 40

    Neighborhood highlights

    Located near shopping, car wash stations, and other local conveniences, this storage facility helps you make the most of every visit.

    • Twisted Lime Pub

      Food & Drinks 0.04 miles

    • 148th St SE & Seattle Hill Rd

      Transportation 0.04 miles

    • DJ Market

      Grocery Stores 0.04 miles

    • 148th St SE & 42nd Dr SE

      Transportation 0.11 miles

    • Buffalo Espresso

      Food & Drinks 0.37 miles

    • 148th St SE & 35th Ave SE

      Transportation 0.37 miles

    • 35TH AVE SE & Seattle Hill Rd

      Transportation 0.38 miles

    • 35th Ave SE & Seattle Hill Rd

      Transportation 0.41 miles

    • The Cage

      Recreation & Entertainment 0.66 miles

    Frequently Asked Questions

    The right storage unit size depends on what you plan to store and how much space you need to move around your items.

    5x5 or 5x10 units are great for smaller loads, such as chairs, lamps, small furniture pieces, boxes, books, and documents.

    10x10 or 10x15 units work well for larger furniture, bicycles, appliances, and the contents of a small apartment.

    10x20 or 10x30 units can typically fit the contents of a three-bedroom home, including large furniture and multiple appliances.

    If you’re unsure which size is best, a unit size calculator can help estimate the right fit based on the items you’re planning to store – helping you avoid paying for more space than you need.

    Climate-controlled storage units maintain consistent temperature and humidity levels, helping protect items from damage caused by heat, cold, or excess moisture.

    You may want climate control if you’re storing items that can be sensitive to temperature changes, such as furniture, clothing, appliances, paperwork, photographs, artwork, electronics, or wood and leather goods. These units are especially useful for long-term storage or in areas with hot summers, cold winters, or high humidity.

    If you’re storing durable items like tools or outdoor gear, a standard unit may be sufficient. When in doubt, climate control offers added protection and peace of mind.

    The facility at 4012 148th Street SE is accessible during regular access hours, typically Mon-Sat: 9:30 a.m. - 6 p.m., Sun: 9:30 a.m. - 5 p.m. Office hours and gate access times may differ, so it’s a good idea to check the facility’s posted schedule before your visit.

    To open your storage unit door, start by unlocking it, whether it uses a traditional padlock or a Bluetooth-enabled smart lock. Once unlocked, grab the bottom handle and lift or pull up the roll-up door until it’s fully open.

    If you’re using the unit for the first time, make sure the lock is properly removed before opening the door to avoid damage.

    Security helps protect your belongings while they’re in storage and gives you peace of mind between visits. Many self storage facilities use a combination of features such as video surveillance, gated access, on-site management, and well-lit premises to help deter unauthorized access.

    At Sound Storage of Mill Creek - 4012 148th Street SE, available security amenities may include Security Camera, Gate, Onsite Manager, designed to help keep your items protected.

    Yes, most standard vehicles can be stored in self storage units. A 10x20 unit typically provides enough space for a car, while outdoor or designated parking areas may be available for larger vehicles.

    For safety reasons, most self storage facilities restrict certain items. These commonly include:

    • Hazardous, flammable, or toxic materials
    • Perishable food
    • Live plants or animals
    • Cash, firearms, or irreplaceable valuables

    Always check with the facility at 4012 148th Street SE for specific restrictions and recommendations.

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